Vibrational frequency scaling factors
Calculated vibrational frequencies ("theory" in table) are calculated at
CCD/6-31G**
| Scale factor |
How many |
Source |
| Molecules |
Vibrations |
| 0.938 ± 0.023 |
53 |
468 |
cccbdb |
Jump to histogram
| Formula |
Name |
Mode |
Symmetry |
Frequency |
Count
|
| Theory |
Experiment |
ratio |
molecules |
vibrations |
| CH4 |
Methane |
1 |
A1 |
3115 |
2917 |
0.936 |
1 |
1 |
| |
|
2 |
E |
1618 |
1534 |
0.948 |
1 |
2 |
| |
|
3 |
T2 |
3249 |
3019 |
0.929 |
1 |
3 |
| |
|
4 |
T2 |
1408 |
1306 |
0.928 |
1 |
4 |
| CH3NH2 |
methyl amine |
1 |
A' |
3580 |
3361 |
0.939 |
2 |
5 |
| |
|
2 |
A' |
3166 |
2961 |
0.935 |
2 |
6 |
| |
|
3 |
A' |
3072 |
2820 |
0.918 |
2 |
7 |
| |
|
4 |
A' |
1719 |
1623 |
0.944 |
2 |
8 |
| |
|
5 |
A' |
1562 |
1473 |
0.943 |
2 |
9 |
| |
|
6 |
A' |
1517 |
1430 |
0.943 |
2 |
10 |
| |
|
7 |
A' |
1224 |
1130 |
0.923 |
2 |
11 |
| |
|
8 |
A' |
1102 |
1044 |
0.948 |
2 |
12 |
| |
|
9 |
A' |
904 |
780 |
0.862 |
2 |
13 |
| |
|
10 |
A" |
3670 |
3427 |
0.934 |
2 |
14 |
| |
|
11 |
A" |
3207 |
2985 |
0.931 |
2 |
15 |
| |
|
12 |
A" |
1581 |
1485 |
0.940 |
2 |
16 |
| |
|
13 |
A" |
1398 |
1335 |
0.955 |
2 |
17 |
| |
|
14 |
A" |
999 |
1195 |
1.196 |
2 |
18 |
| |
|
15 |
A" |
337 |
268 |
0.795 |
2 |
19 |
| CH3CH2NH2 |
Ethylamine |
1 |
A' |
3563 |
3345 |
0.939 |
3 |
20 |
| |
|
2 |
A' |
3193 |
2985 |
0.935 |
3 |
21 |
| |
|
3 |
A' |
3123 |
2840 |
0.909 |
3 |
22 |
| |
|
4 |
A' |
3105 |
2860 |
0.921 |
3 |
23 |
| |
|
5 |
A' |
1716 |
1622 |
0.945 |
3 |
24 |
| |
|
6 |
A' |
1568 |
1487 |
0.948 |
3 |
25 |
| |
|
7 |
A' |
1550 |
1465 |
0.945 |
3 |
26 |
| |
|
8 |
A' |
1473 |
1378 |
0.935 |
3 |
27 |
| |
|
9 |
A' |
1433 |
1397 |
0.975 |
3 |
28 |
| |
|
10 |
A' |
1198 |
1016 |
0.848 |
3 |
29 |
| |
|
11 |
A' |
1116 |
1086 |
0.973 |
3 |
30 |
| |
|
12 |
A' |
944 |
892 |
0.945 |
3 |
31 |
| |
|
13 |
A' |
907 |
773 |
0.852 |
3 |
32 |
| |
|
14 |
A' |
412 |
403 |
0.978 |
3 |
33 |
| |
|
15 |
A" |
3654 |
3412 |
0.934 |
3 |
34 |
| |
|
16 |
A" |
3194 |
2924 |
0.916 |
3 |
35 |
| |
|
17 |
A" |
3164 |
2906 |
0.918 |
3 |
36 |
| |
|
18 |
A" |
1558 |
1455 |
0.934 |
3 |
37 |
| |
|
19 |
A" |
1432 |
1238 |
0.864 |
3 |
38 |
| |
|
20 |
A" |
1320 |
1293 |
0.980 |
3 |
39 |
| |
|
21 |
A" |
1036 |
1117 |
1.078 |
3 |
40 |
| |
|
22 |
A" |
797 |
816 |
1.024 |
3 |
41 |
| |
|
23 |
A" |
318 |
259 |
0.815 |
3 |
42 |
| |
|
24 |
A" |
270 |
218 |
0.807 |
3 |
43 |
| HNCO |
Isocyanic acid |
1 |
A' |
3801 |
3538 |
0.931 |
4 |
44 |
| |
|
2 |
A' |
2386 |
2269 |
0.951 |
4 |
45 |
| |
|
3 |
A' |
1363 |
1327 |
0.973 |
4 |
46 |
| |
|
4 |
A' |
811 |
777 |
0.957 |
4 |
47 |
| |
|
5 |
A' |
561 |
577 |
1.029 |
4 |
48 |
| |
|
6 |
A" |
624 |
656 |
1.051 |
4 |
49 |
| CH3COOCH3 |
methyl acetate |
1 |
A' |
3262 |
3035 |
0.930 |
5 |
50 |
| |
|
2 |
A' |
3258 |
3031 |
0.930 |
5 |
51 |
| |
|
3 |
A' |
3142 |
2966 |
0.944 |
5 |
52 |
| |
|
4 |
A' |
3140 |
2964 |
0.944 |
5 |
53 |
| |
|
5 |
A' |
1902 |
1771 |
0.931 |
5 |
54 |
| |
|
6 |
A' |
1562 |
1460 |
0.935 |
5 |
55 |
| |
|
7 |
A' |
1538 |
1440 |
0.936 |
5 |
56 |
| |
|
8 |
A' |
1530 |
1430 |
0.934 |
5 |
57 |
| |
|
9 |
A' |
1464 |
1375 |
0.939 |
5 |
58 |
| |
|
10 |
A' |
1346 |
1248 |
0.927 |
5 |
59 |
| |
|
11 |
A' |
1249 |
1159 |
0.928 |
5 |
60 |
| |
|
12 |
A' |
1132 |
1060 |
0.937 |
5 |
61 |
| |
|
13 |
A' |
1027 |
980 |
0.954 |
5 |
62 |
| |
|
14 |
A' |
893 |
844 |
0.945 |
5 |
63 |
| |
|
15 |
A' |
661 |
639 |
0.966 |
5 |
64 |
| |
|
16 |
A' |
433 |
429 |
0.992 |
5 |
65 |
| |
|
17 |
A' |
295 |
303 |
1.028 |
5 |
66 |
| |
|
18 |
A" |
3230 |
3005 |
0.930 |
5 |
67 |
| |
|
19 |
A" |
3224 |
2994 |
0.929 |
5 |
68 |
| |
|
20 |
A" |
1551 |
1460 |
0.941 |
5 |
69 |
| |
|
21 |
A" |
1538 |
1430 |
0.930 |
5 |
70 |
| |
|
22 |
A" |
1214 |
1187 |
0.978 |
5 |
71 |
| |
|
23 |
A" |
1103 |
1036 |
0.939 |
5 |
72 |
| |
|
24 |
A" |
614 |
607 |
0.989 |
5 |
73 |
| |
|
25 |
A" |
182 |
187 |
1.028 |
5 |
74 |
| |
|
26 |
A" |
155 |
136 |
0.878 |
5 |
75 |
| |
|
27 |
A" |
83 |
110 |
1.327 |
5 |
76 |
| CH2CHCH3 |
Propene |
1 |
A' |
3318 |
3090 |
0.931 |
6 |
77 |
| |
|
2 |
A' |
3233 |
3013 |
0.932 |
6 |
78 |
| |
|
3 |
A' |
3222 |
2991 |
0.928 |
6 |
79 |
| |
|
4 |
A' |
3202 |
2954 |
0.923 |
6 |
80 |
| |
|
5 |
A' |
3109 |
2871 |
0.924 |
6 |
81 |
| |
|
6 |
A' |
1771 |
1650 |
0.932 |
6 |
82 |
| |
|
7 |
A' |
1559 |
1470 |
0.943 |
6 |
83 |
| |
|
8 |
A' |
1509 |
1420 |
0.941 |
6 |
84 |
| |
|
9 |
A' |
1467 |
1378 |
0.939 |
6 |
85 |
| |
|
10 |
A' |
1361 |
1297 |
0.953 |
6 |
86 |
| |
|
11 |
A' |
1228 |
1171 |
0.954 |
6 |
87 |
| |
|
12 |
A' |
974 |
963 |
0.989 |
6 |
88 |
| |
|
13 |
A' |
956 |
920 |
0.963 |
6 |
89 |
| |
|
14 |
A' |
430 |
428 |
0.995 |
6 |
90 |
| |
|
15 |
A" |
3179 |
2954 |
0.929 |
6 |
91 |
| |
|
16 |
A" |
1543 |
1443 |
0.935 |
6 |
92 |
| |
|
17 |
A" |
1104 |
1045 |
0.947 |
6 |
93 |
| |
|
18 |
A" |
1040 |
991 |
0.953 |
6 |
94 |
| |
|
19 |
A" |
942 |
912 |
0.968 |
6 |
95 |
| |
|
20 |
A" |
591 |
578 |
0.978 |
6 |
96 |
| |
|
21 |
A" |
194 |
174 |
0.896 |
6 |
97 |
| CH3CH2CHO |
Propanal |
1 |
A' |
3219 |
2981 |
0.926 |
7 |
98 |
| |
|
2 |
A' |
3134 |
2904 |
0.927 |
7 |
99 |
| |
|
3 |
A' |
3104 |
2895 |
0.933 |
7 |
100 |
| |
|
4 |
A' |
3015 |
2809 |
0.932 |
7 |
101 |
| |
|
5 |
A' |
1873 |
1743 |
0.931 |
7 |
102 |
| |
|
6 |
A' |
1561 |
1460 |
0.935 |
7 |
103 |
| |
|
7 |
A' |
1525 |
1416 |
0.928 |
7 |
104 |
| |
|
8 |
A' |
1485 |
1390 |
0.936 |
7 |
105 |
| |
|
9 |
A' |
1465 |
1376 |
0.939 |
7 |
106 |
| |
|
10 |
A' |
1427 |
1335 |
0.936 |
7 |
107 |
| |
|
11 |
A' |
1152 |
1093 |
0.949 |
7 |
108 |
| |
|
12 |
A' |
1036 |
993 |
0.959 |
7 |
109 |
| |
|
13 |
A' |
893 |
848 |
0.950 |
7 |
110 |
| |
|
14 |
A' |
686 |
668 |
0.974 |
7 |
111 |
| |
|
15 |
A' |
269 |
271 |
1.008 |
7 |
112 |
| |
|
16 |
A" |
3225 |
2992 |
0.928 |
7 |
113 |
| |
|
17 |
A" |
3142 |
2942 |
0.936 |
7 |
114 |
| |
|
18 |
A" |
1558 |
1451 |
0.931 |
7 |
115 |
| |
|
19 |
A" |
1324 |
1250 |
0.944 |
7 |
116 |
| |
|
20 |
A" |
1189 |
1118 |
0.940 |
7 |
117 |
| |
|
21 |
A" |
927 |
892 |
0.962 |
7 |
118 |
| |
|
22 |
A" |
702 |
660 |
0.940 |
7 |
119 |
| |
|
23 |
A" |
242 |
220 |
0.909 |
7 |
120 |
| |
|
24 |
A" |
136 |
135 |
0.992 |
7 |
121 |
| C4H9N |
Pyrrolidine |
1 |
A' |
3612 |
3356 |
0.929 |
8 |
122 |
| |
|
2 |
A' |
3207 |
2975 |
0.928 |
8 |
123 |
| |
|
3 |
A' |
3170 |
2927 |
0.923 |
8 |
124 |
| |
|
4 |
A' |
3151 |
2889 |
0.917 |
8 |
125 |
| |
|
5 |
A' |
3037 |
2824 |
0.930 |
8 |
126 |
| |
|
6 |
A' |
1594 |
1484 |
0.931 |
8 |
127 |
| |
|
7 |
A' |
1569 |
1447 |
0.922 |
8 |
128 |
| |
|
8 |
A' |
1452 |
1292 |
0.890 |
8 |
129 |
| |
|
9 |
A' |
1371 |
1273 |
0.929 |
8 |
130 |
| |
|
10 |
A' |
1292 |
1228 |
0.951 |
8 |
131 |
| |
|
11 |
A' |
1270 |
1181 |
0.930 |
8 |
132 |
| |
|
12 |
A' |
1108 |
974 |
0.879 |
8 |
133 |
| |
|
13 |
A' |
1037 |
920 |
0.887 |
8 |
134 |
| |
|
14 |
A' |
978 |
901 |
0.921 |
8 |
135 |
| |
|
15 |
A' |
937 |
871 |
0.929 |
8 |
136 |
| |
|
16 |
A' |
921 |
832 |
0.904 |
8 |
137 |
| |
|
17 |
A' |
794 |
789 |
0.994 |
8 |
138 |
| |
|
18 |
A' |
595 |
579 |
0.973 |
8 |
139 |
| |
|
19 |
A' |
305 |
299 |
0.982 |
8 |
140 |
| |
|
20 |
A" |
3189 |
2967 |
0.930 |
8 |
141 |
| |
|
21 |
A" |
3165 |
2916 |
0.921 |
8 |
142 |
| |
|
22 |
A" |
3142 |
2879 |
0.916 |
8 |
143 |
| |
|
23 |
A" |
3033 |
2818 |
0.929 |
8 |
144 |
| |
|
24 |
A" |
1577 |
1459 |
0.925 |
8 |
145 |
| |
|
25 |
A" |
1547 |
1412 |
0.913 |
8 |
146 |
| |
|
26 |
A" |
1484 |
1341 |
0.904 |
8 |
147 |
| |
|
27 |
A" |
1374 |
1268 |
0.923 |
8 |
148 |
| |
|
28 |
A" |
1351 |
1211 |
0.897 |
8 |
149 |
| |
|
29 |
A" |
1289 |
1203 |
0.934 |
8 |
150 |
| |
|
30 |
A" |
1241 |
1171 |
0.943 |
8 |
151 |
| |
|
31 |
A" |
1173 |
1099 |
0.937 |
8 |
152 |
| |
|
32 |
A" |
1138 |
1023 |
0.899 |
8 |
153 |
| |
|
33 |
A" |
967 |
883 |
0.913 |
8 |
154 |
| |
|
34 |
A" |
896 |
848 |
0.946 |
8 |
155 |
| |
|
35 |
A" |
643 |
600 |
0.934 |
8 |
156 |
| |
|
36 |
A" |
65 |
65 |
1.003 |
8 |
157 |
| C5H8 |
Cyclopentene |
1 |
A' |
3289 |
3066 |
0.932 |
9 |
158 |
| |
|
2 |
A' |
3192 |
2958 |
0.927 |
9 |
159 |
| |
|
3 |
A' |
3158 |
2916 |
0.923 |
9 |
160 |
| |
|
4 |
A' |
3133 |
2902 |
0.926 |
9 |
161 |
| |
|
5 |
A' |
3102 |
2852 |
0.920 |
9 |
162 |
| |
|
6 |
A' |
1734 |
1616 |
0.932 |
9 |
163 |
| |
|
7 |
A' |
1573 |
1467 |
0.932 |
9 |
164 |
| |
|
8 |
A' |
1546 |
1449 |
0.937 |
9 |
165 |
| |
|
9 |
A' |
1389 |
1302 |
0.938 |
9 |
166 |
| |
|
10 |
A' |
1276 |
1284 |
1.006 |
9 |
167 |
| |
|
11 |
A' |
1165 |
1213 |
1.041 |
9 |
168 |
| |
|
12 |
A' |
1106 |
1048 |
0.947 |
9 |
169 |
| |
|
13 |
A' |
1007 |
964 |
0.957 |
9 |
170 |
| |
|
14 |
A' |
940 |
962 |
1.023 |
9 |
171 |
| |
|
15 |
A' |
856 |
904 |
1.056 |
9 |
172 |
| |
|
16 |
A' |
730 |
692 |
0.947 |
9 |
173 |
| |
|
17 |
A' |
614 |
603 |
0.982 |
9 |
174 |
| |
|
18 |
A' |
169 |
254 |
1.504 |
9 |
175 |
| |
|
19 |
A" |
3264 |
3039 |
0.931 |
9 |
176 |
| |
|
20 |
A" |
3156 |
2967 |
0.940 |
9 |
177 |
| |
|
21 |
A" |
3102 |
2927 |
0.944 |
9 |
178 |
| |
|
22 |
A" |
1556 |
1467 |
0.943 |
9 |
179 |
| |
|
23 |
A" |
1432 |
1432 |
1.000 |
9 |
180 |
| |
|
24 |
A" |
1380 |
1356 |
0.983 |
9 |
181 |
| |
|
25 |
A" |
1354 |
1302 |
0.962 |
9 |
182 |
| |
|
26 |
A" |
1269 |
1297 |
1.022 |
9 |
183 |
| |
|
27 |
A" |
1187 |
1207 |
1.017 |
9 |
184 |
| |
|
28 |
A" |
1078 |
1113 |
1.032 |
9 |
185 |
| |
|
29 |
A" |
975 |
1082 |
1.110 |
9 |
186 |
| |
|
30 |
A" |
950 |
937 |
0.986 |
9 |
187 |
| |
|
31 |
A" |
924 |
800 |
0.866 |
9 |
188 |
| |
|
32 |
A" |
790 |
702 |
0.889 |
9 |
189 |
| |
|
33 |
A" |
392 |
387 |
0.986 |
9 |
190 |
| C8H8 |
cubane |
1 |
A1g |
3226 |
2995 |
0.928 |
10 |
191 |
| |
|
2 |
A1g |
1050 |
1002 |
0.954 |
10 |
192 |
| |
|
3 |
A2u |
3192 |
2978 |
0.933 |
10 |
193 |
| |
|
4 |
A2u |
1037 |
839 |
0.809 |
10 |
194 |
| |
|
5 |
Eg |
1167 |
1083 |
0.928 |
10 |
195 |
| |
|
6 |
Eg |
946 |
912 |
0.964 |
10 |
196 |
| |
|
7 |
Eu |
1164 |
1151 |
0.989 |
10 |
197 |
| |
|
8 |
Eu |
615 |
617 |
1.004 |
10 |
198 |
| |
|
9 |
T1g |
1189 |
1130 |
0.950 |
10 |
199 |
| |
|
10 |
T1u |
3208 |
2978 |
0.928 |
10 |
200 |
| |
|
11 |
T1u |
1319 |
1230 |
0.932 |
10 |
201 |
| |
|
12 |
T1u |
891 |
853 |
0.957 |
10 |
202 |
| |
|
13 |
T2g |
3201 |
2970 |
0.928 |
10 |
203 |
| |
|
14 |
T2g |
1266 |
1182 |
0.934 |
10 |
204 |
| |
|
15 |
T2g |
866 |
821 |
0.948 |
10 |
205 |
| |
|
16 |
T2g |
674 |
665 |
0.987 |
10 |
206 |
| |
|
17 |
T2u |
1121 |
1036 |
0.924 |
10 |
207 |
| |
|
18 |
T2u |
870 |
829 |
0.953 |
10 |
208 |
| C4H4N2 |
Pyrazine |
1 |
Ag |
3277 |
3055 |
0.932 |
11 |
209 |
| |
|
2 |
Ag |
1693 |
1580 |
0.933 |
11 |
210 |
| |
|
3 |
Ag |
1290 |
1233 |
0.956 |
11 |
211 |
| |
|
4 |
Ag |
1064 |
1016 |
0.955 |
11 |
212 |
| |
|
5 |
Ag |
614 |
602 |
0.980 |
11 |
213 |
| |
|
6 |
Au |
992 |
960 |
0.968 |
11 |
214 |
| |
|
7 |
Au |
364 |
350 |
0.960 |
11 |
215 |
| |
|
8 |
B1g |
960 |
927 |
0.966 |
11 |
216 |
| |
|
9 |
B1u |
3256 |
3012 |
0.925 |
11 |
217 |
| |
|
10 |
B1u |
1566 |
1483 |
0.947 |
11 |
218 |
| |
|
11 |
B1u |
1192 |
1130 |
0.948 |
11 |
219 |
| |
|
12 |
B1u |
1057 |
1018 |
0.963 |
11 |
220 |
| |
|
13 |
B2g |
974 |
983 |
1.009 |
11 |
221 |
| |
|
14 |
B2g |
752 |
756 |
1.005 |
11 |
222 |
| |
|
15 |
B2u |
3272 |
3069 |
0.938 |
11 |
223 |
| |
|
16 |
B2u |
1484 |
1411 |
0.951 |
11 |
224 |
| |
|
17 |
B2u |
1180 |
1149 |
0.973 |
11 |
225 |
| |
|
18 |
B2u |
1124 |
1063 |
0.946 |
11 |
226 |
| |
|
19 |
B3g |
3255 |
3040 |
0.934 |
11 |
227 |
| |
|
20 |
B3g |
1637 |
1525 |
0.932 |
11 |
228 |
| |
|
21 |
B3g |
1409 |
1346 |
0.955 |
11 |
229 |
| |
|
22 |
B3g |
726 |
704 |
0.969 |
11 |
230 |
| |
|
23 |
B3u |
817 |
785 |
0.960 |
11 |
231 |
| |
|
24 |
B3u |
433 |
418 |
0.965 |
11 |
232 |
| C5H6 |
1,3-Cyclopentadiene |
1 |
A1 |
3314 |
3091 |
0.933 |
12 |
233 |
| |
|
2 |
A1 |
3289 |
3075 |
0.935 |
12 |
234 |
| |
|
3 |
A1 |
3109 |
2886 |
0.928 |
12 |
235 |
| |
|
4 |
A1 |
1633 |
1500 |
0.919 |
12 |
236 |
| |
|
5 |
A1 |
1496 |
1378 |
0.921 |
12 |
237 |
| |
|
6 |
A1 |
1455 |
1365 |
0.938 |
12 |
238 |
| |
|
7 |
A1 |
1166 |
1106 |
0.948 |
12 |
239 |
| |
|
8 |
A1 |
1039 |
994 |
0.957 |
12 |
240 |
| |
|
9 |
A1 |
956 |
915 |
0.957 |
12 |
241 |
| |
|
10 |
A1 |
820 |
802 |
0.978 |
12 |
242 |
| |
|
11 |
A2 |
1167 |
1100 |
0.943 |
12 |
243 |
| |
|
12 |
A2 |
925 |
941 |
1.017 |
12 |
244 |
| |
|
13 |
A2 |
724 |
700 |
0.967 |
12 |
245 |
| |
|
14 |
A2 |
508 |
516 |
1.016 |
12 |
246 |
| |
|
15 |
B1 |
3150 |
2900 |
0.921 |
12 |
247 |
| |
|
16 |
B1 |
966 |
925 |
0.958 |
12 |
248 |
| |
|
17 |
B1 |
949 |
891 |
0.939 |
12 |
249 |
| |
|
18 |
B1 |
689 |
664 |
0.964 |
12 |
250 |
| |
|
19 |
B1 |
344 |
350 |
1.017 |
12 |
251 |
| |
|
20 |
B2 |
3306 |
3105 |
0.939 |
12 |
252 |
| |
|
21 |
B2 |
3280 |
3043 |
0.928 |
12 |
253 |
| |
|
22 |
B2 |
1703 |
1580 |
0.928 |
12 |
254 |
| |
|
23 |
B2 |
1370 |
1292 |
0.943 |
12 |
255 |
| |
|
24 |
B2 |
1327 |
1239 |
0.934 |
12 |
256 |
| |
|
25 |
B2 |
1151 |
1090 |
0.947 |
12 |
257 |
| |
|
26 |
B2 |
1006 |
959 |
0.954 |
12 |
258 |
| |
|
27 |
B2 |
825 |
805 |
0.976 |
12 |
259 |
| CH3CHCHCH3 |
2-Butene, (Z)- |
1 |
A1 |
3239 |
3033 |
0.936 |
13 |
260 |
| |
|
2 |
A1 |
3225 |
2965 |
0.920 |
13 |
261 |
| |
|
3 |
A1 |
3114 |
2878 |
0.924 |
13 |
262 |
| |
|
4 |
A1 |
1795 |
1669 |
0.930 |
13 |
263 |
| |
|
5 |
A1 |
1562 |
1448 |
0.927 |
13 |
264 |
| |
|
6 |
A1 |
1482 |
1397 |
0.943 |
13 |
265 |
| |
|
7 |
A1 |
1330 |
1261 |
0.948 |
13 |
266 |
| |
|
8 |
A1 |
1058 |
986 |
0.932 |
13 |
267 |
| |
|
9 |
A1 |
896 |
880 |
0.983 |
13 |
268 |
| |
|
10 |
A1 |
301 |
290 |
0.963 |
13 |
269 |
| |
|
11 |
A2 |
3176 |
2988 |
0.941 |
13 |
270 |
| |
|
12 |
A2 |
1544 |
1464 |
0.948 |
13 |
271 |
| |
|
13 |
A2 |
1090 |
1037 |
0.951 |
13 |
272 |
| |
|
14 |
A2 |
1013 |
880 |
0.868 |
13 |
273 |
| |
|
15 |
A2 |
384 |
396 |
1.031 |
13 |
274 |
| |
|
17 |
B1 |
3176 |
2965 |
0.934 |
13 |
275 |
| |
|
18 |
B1 |
1549 |
1448 |
0.935 |
13 |
276 |
| |
|
19 |
B1 |
1104 |
986 |
0.893 |
13 |
277 |
| |
|
20 |
B1 |
712 |
673 |
0.945 |
13 |
278 |
| |
|
22 |
B2 |
3220 |
3033 |
0.942 |
13 |
279 |
| |
|
23 |
B2 |
3205 |
2965 |
0.925 |
13 |
280 |
| |
|
24 |
B2 |
3111 |
2900 |
0.932 |
13 |
281 |
| |
|
25 |
B2 |
1553 |
1448 |
0.933 |
13 |
282 |
| |
|
26 |
B2 |
1495 |
1420 |
0.950 |
13 |
283 |
| |
|
27 |
B2 |
1442 |
1397 |
0.969 |
13 |
284 |
| |
|
28 |
B2 |
1191 |
1135 |
0.953 |
13 |
285 |
| |
|
29 |
B2 |
1014 |
986 |
0.973 |
13 |
286 |
| |
|
30 |
B2 |
573 |
583 |
1.017 |
13 |
287 |
| C5H8 |
1,4-Pentadiene |
1 |
A |
3317 |
3080 |
0.929 |
14 |
288 |
| |
|
2 |
A |
3233 |
3012 |
0.932 |
14 |
289 |
| |
|
3 |
A |
3220 |
3012 |
0.935 |
14 |
290 |
| |
|
4 |
A |
3100 |
2900 |
0.935 |
14 |
291 |
| |
|
5 |
A |
1769 |
1644 |
0.929 |
14 |
292 |
| |
|
6 |
A |
1538 |
1433 |
0.932 |
14 |
293 |
| |
|
7 |
A |
1502 |
1413 |
0.941 |
14 |
294 |
| |
|
8 |
A |
1355 |
1295 |
0.956 |
14 |
295 |
| |
|
9 |
A |
1300 |
1263 |
0.971 |
14 |
296 |
| |
|
10 |
A |
1115 |
1120 |
1.004 |
14 |
297 |
| |
|
11 |
A |
1041 |
995 |
0.956 |
14 |
298 |
| |
|
12 |
A |
949 |
918 |
0.967 |
14 |
299 |
| |
|
13 |
A |
939 |
876 |
0.932 |
14 |
300 |
| |
|
14 |
A |
686 |
562 |
0.819 |
14 |
301 |
| |
|
15 |
A |
378 |
421 |
1.115 |
14 |
302 |
| |
|
16 |
A |
302 |
137 |
0.453 |
14 |
303 |
| |
|
17 |
A |
87 |
102 |
1.170 |
14 |
304 |
| |
|
18 |
B |
3317 |
3080 |
0.929 |
14 |
305 |
| |
|
19 |
B |
3232 |
3012 |
0.932 |
14 |
306 |
| |
|
20 |
B |
3220 |
3012 |
0.935 |
14 |
307 |
| |
|
21 |
B |
3150 |
2982 |
0.947 |
14 |
308 |
| |
|
22 |
B |
1761 |
1640 |
0.931 |
14 |
309 |
| |
|
23 |
B |
1509 |
1413 |
0.937 |
14 |
310 |
| |
|
24 |
B |
1370 |
1314 |
0.959 |
14 |
311 |
| |
|
25 |
B |
1342 |
1280 |
0.954 |
14 |
312 |
| |
|
26 |
B |
1208 |
1060 |
0.878 |
14 |
313 |
| |
|
27 |
B |
1043 |
995 |
0.954 |
14 |
314 |
| |
|
28 |
B |
1001 |
995 |
0.994 |
14 |
315 |
| |
|
29 |
B |
949 |
920 |
0.970 |
14 |
316 |
| |
|
30 |
B |
920 |
760 |
0.826 |
14 |
317 |
| |
|
31 |
B |
615 |
721 |
1.172 |
14 |
318 |
| |
|
32 |
B |
457 |
421 |
0.921 |
14 |
319 |
| |
|
33 |
B |
97 |
331 |
3.429 |
14 |
320 |
| CH3CHCHCH3 |
2-Butene, (E)- |
1 |
Ag |
3214 |
3011 |
0.937 |
15 |
321 |
| |
|
2 |
Ag |
3199 |
2954 |
0.923 |
15 |
322 |
| |
|
3 |
Ag |
3106 |
2874 |
0.925 |
15 |
323 |
| |
|
4 |
Ag |
1804 |
1680 |
0.931 |
15 |
324 |
| |
|
5 |
Ag |
1556 |
1457 |
0.936 |
15 |
325 |
| |
|
6 |
Ag |
1477 |
1385 |
0.938 |
15 |
326 |
| |
|
7 |
Ag |
1369 |
1309 |
0.956 |
15 |
327 |
| |
|
8 |
Ag |
1206 |
1146 |
0.950 |
15 |
328 |
| |
|
9 |
Ag |
905 |
866 |
0.957 |
15 |
329 |
| |
|
10 |
Ag |
509 |
501 |
0.985 |
15 |
330 |
| |
|
11 |
Au |
3175 |
2960 |
0.932 |
15 |
331 |
| |
|
12 |
Au |
1542 |
1449 |
0.940 |
15 |
332 |
| |
|
13 |
Au |
1106 |
1057 |
0.955 |
15 |
333 |
| |
|
14 |
Au |
1018 |
964 |
0.947 |
15 |
334 |
| |
|
15 |
Au |
247 |
224 |
0.907 |
15 |
335 |
| |
|
17 |
Bg |
3175 |
2954 |
0.930 |
15 |
336 |
| |
|
18 |
Bg |
1543 |
1457 |
0.944 |
15 |
337 |
| |
|
19 |
Bg |
1096 |
1039 |
0.948 |
15 |
338 |
| |
|
20 |
Bg |
755 |
750 |
0.994 |
15 |
339 |
| |
|
22 |
Bu |
3219 |
3021 |
0.939 |
15 |
340 |
| |
|
23 |
Bu |
3197 |
2960 |
0.926 |
15 |
341 |
| |
|
24 |
Bu |
3106 |
2899 |
0.933 |
15 |
342 |
| |
|
25 |
Bu |
1562 |
1449 |
0.928 |
15 |
343 |
| |
|
26 |
Bu |
1476 |
1393 |
0.944 |
15 |
344 |
| |
|
27 |
Bu |
1374 |
1311 |
0.954 |
15 |
345 |
| |
|
28 |
Bu |
1117 |
1072 |
0.959 |
15 |
346 |
| |
|
29 |
Bu |
1018 |
987 |
0.969 |
15 |
347 |
| |
|
30 |
Bu |
286 |
261 |
0.913 |
15 |
348 |
| CH3SSCH3 |
Disulfide, dimethyl |
1 |
A |
3243 |
2990 |
0.922 |
16 |
349 |
| |
|
2 |
A |
3229 |
2983 |
0.924 |
16 |
350 |
| |
|
3 |
A |
3133 |
2913 |
0.930 |
16 |
351 |
| |
|
4 |
A |
1540 |
1426 |
0.926 |
16 |
352 |
| |
|
5 |
A |
1525 |
1419 |
0.931 |
16 |
353 |
| |
|
6 |
A |
1436 |
1311 |
0.913 |
16 |
354 |
| |
|
7 |
A |
1029 |
955 |
0.928 |
16 |
355 |
| |
|
8 |
A |
1022 |
949 |
0.929 |
16 |
356 |
| |
|
9 |
A |
748 |
694 |
0.928 |
16 |
357 |
| |
|
10 |
A |
524 |
509 |
0.972 |
16 |
358 |
| |
|
11 |
A |
241 |
240 |
0.997 |
16 |
359 |
| |
|
12 |
A |
160 |
134 |
0.838 |
16 |
360 |
| |
|
13 |
A |
97 |
117 |
1.206 |
16 |
361 |
| |
|
14 |
B |
3242 |
2990 |
0.922 |
16 |
362 |
| |
|
15 |
B |
3228 |
2983 |
0.924 |
16 |
363 |
| |
|
16 |
B |
3131 |
2915 |
0.931 |
16 |
364 |
| |
|
17 |
B |
1543 |
1430 |
0.927 |
16 |
365 |
| |
|
18 |
B |
1518 |
1415 |
0.932 |
16 |
366 |
| |
|
19 |
B |
1428 |
1303 |
0.912 |
16 |
367 |
| |
|
20 |
B |
1027 |
955 |
0.930 |
16 |
368 |
| |
|
21 |
B |
1020 |
949 |
0.930 |
16 |
369 |
| |
|
22 |
B |
743 |
691 |
0.930 |
16 |
370 |
| |
|
23 |
B |
271 |
274 |
1.011 |
16 |
371 |
| |
|
24 |
B |
171 |
134 |
0.785 |
16 |
372 |
| H2 |
Hydrogen diatomic |
1 |
Σg |
4520 |
4401 |
0.974 |
17 |
373 |
| CF2 |
Difluoromethylene |
1 |
A1 |
1297 |
1225 |
0.945 |
18 |
374 |
| |
|
1 |
A1 |
1179 |
1225 |
1.039 |
18 |
375 |
| |
|
2 |
A1 |
673 |
667 |
0.991 |
18 |
376 |
| |
|
2 |
A1 |
514 |
667 |
1.298 |
18 |
377 |
| |
|
3 |
B2 |
1201 |
1114 |
0.928 |
18 |
378 |
| |
|
3 |
B2 |
1379 |
1114 |
0.808 |
18 |
379 |
| SF6 |
Sulfur Hexafluoride |
1 |
A1g |
774 |
774 |
1.000 |
19 |
380 |
| |
|
2 |
Eg |
686 |
642 |
0.935 |
19 |
381 |
| |
|
3 |
T1u |
1023 |
948 |
0.926 |
19 |
382 |
| |
|
4 |
T1u |
588 |
616 |
1.046 |
19 |
383 |
| |
|
5 |
T2g |
500 |
525 |
1.051 |
19 |
384 |
| |
|
6 |
T2u |
336 |
347 |
1.034 |
19 |
385 |
| C3H4 |
cyclopropene |
1 |
A1 |
3393 |
3158 |
0.931 |
20 |
386 |
| |
|
2 |
A1 |
3145 |
2909 |
0.925 |
20 |
387 |
| |
|
3 |
A1 |
1766 |
1653 |
0.936 |
20 |
388 |
| |
|
4 |
A1 |
1590 |
1483 |
0.933 |
20 |
389 |
| |
|
5 |
A1 |
1221 |
1110 |
0.909 |
20 |
390 |
| |
|
6 |
A1 |
968 |
905 |
0.935 |
20 |
391 |
| |
|
7 |
A2 |
1053 |
996 |
0.946 |
20 |
392 |
| |
|
8 |
A2 |
841 |
820 |
0.975 |
20 |
393 |
| |
|
9 |
B1 |
3216 |
2995 |
0.931 |
20 |
394 |
| |
|
10 |
B1 |
1148 |
1088 |
0.947 |
20 |
395 |
| |
|
11 |
B1 |
587 |
569 |
0.969 |
20 |
396 |
| |
|
12 |
B2 |
3347 |
3124 |
0.933 |
20 |
397 |
| |
|
13 |
B2 |
1130 |
1043 |
0.923 |
20 |
398 |
| |
|
14 |
B2 |
1093 |
1011 |
0.925 |
20 |
399 |
| |
|
15 |
B2 |
831 |
769 |
0.926 |
20 |
400 |
| CS |
carbon monosulfide |
1 |
Σ |
1364 |
1285 |
0.942 |
21 |
401 |
| CH |
Methylidyne |
1 |
Σ |
2885 |
2861 |
0.992 |
22 |
402 |
| |
|
1 |
Σ |
3250 |
2861 |
0.880 |
22 |
403 |
| |
|
1 |
Σ |
2885 |
3145 |
1.090 |
22 |
404 |
| |
|
1 |
Σ |
3250 |
3145 |
0.968 |
22 |
405 |
| |
|
1 |
Σ |
2885 |
2931 |
1.016 |
22 |
406 |
| |
|
1 |
Σ |
3250 |
2931 |
0.902 |
22 |
407 |
| OH |
Hydroxyl radical |
1 |
Σ |
3807 |
3738 |
0.982 |
23 |
408 |
| SiH2Cl2 |
dichlorosilane |
1 |
A1 |
2358 |
2224 |
0.943 |
24 |
409 |
| |
|
2 |
A1 |
1000 |
954 |
0.954 |
24 |
410 |
| |
|
3 |
A1 |
544 |
527 |
0.969 |
24 |
411 |
| |
|
4 |
A1 |
192 |
188 |
0.978 |
24 |
412 |
| |
|
5 |
A2 |
744 |
710 |
0.954 |
24 |
413 |
| |
|
6 |
B1 |
2375 |
2237 |
0.942 |
24 |
414 |
| |
|
7 |
B1 |
621 |
602 |
0.969 |
24 |
415 |
| |
|
8 |
B2 |
928 |
876 |
0.944 |
24 |
416 |
| |
|
9 |
B2 |
614 |
590 |
0.962 |
24 |
417 |
| LiH |
Lithium Hydride |
1 |
Σ |
1385 |
1405 |
1.015 |
25 |
418 |
| NaH |
sodium hydride |
1 |
Σ |
1158 |
1172 |
1.012 |
26 |
419 |
| HCl |
Hydrogen chloride |
1 |
Σ |
3081 |
2991 |
0.971 |
27 |
420 |
| HF |
Hydrogen fluoride |
1 |
Σ |
4211 |
4138 |
0.983 |
28 |
421 |
| NH3 |
Ammonia |
1 |
A1 |
3551 |
3337 |
0.940 |
29 |
422 |
| |
|
2 |
A1 |
1141 |
950 |
0.832 |
29 |
423 |
| |
|
3 |
E |
3692 |
3444 |
0.933 |
29 |
424 |
| |
|
4 |
E |
1734 |
1627 |
0.938 |
29 |
425 |
| MgH2 |
magnesium dihydride |
2 |
Σu |
1630 |
1572 |
0.964 |
30 |
426 |
| |
|
3 |
Πu |
447 |
440 |
0.983 |
30 |
427 |
| H2O |
Water |
1 |
A1 |
3911 |
3657 |
0.935 |
31 |
428 |
| |
|
2 |
A1 |
1702 |
1595 |
0.937 |
31 |
429 |
| |
|
3 |
B2 |
4034 |
3756 |
0.931 |
31 |
430 |
| H2S |
Hydrogen sulfide |
1 |
A1 |
2794 |
2615 |
0.936 |
32 |
431 |
| |
|
2 |
A1 |
1270 |
1183 |
0.931 |
32 |
432 |
| |
|
3 |
B2 |
2816 |
2626 |
0.932 |
32 |
433 |
| AlH3 |
aluminum trihydride |
1 |
A1' |
1973 |
1900 |
0.963 |
33 |
434 |
| |
|
2 |
A2" |
728 |
698 |
0.958 |
33 |
435 |
| |
|
3 |
E' |
1987 |
1883 |
0.947 |
33 |
436 |
| |
|
4 |
E' |
813 |
783 |
0.963 |
33 |
437 |
| BeH2 |
beryllium dihydride |
2 |
Σu |
2308 |
2159 |
0.935 |
34 |
438 |
| |
|
3 |
Πu |
727 |
698 |
0.960 |
34 |
439 |
| PH3 |
Phosphine |
1 |
A1 |
2485 |
2323 |
0.935 |
35 |
440 |
| |
|
2 |
A1 |
1076 |
992 |
0.922 |
35 |
441 |
| |
|
3 |
E |
2499 |
2328 |
0.932 |
35 |
442 |
| |
|
4 |
E |
1169 |
1118 |
0.956 |
35 |
443 |
| SiH4 |
Silane |
1 |
A1 |
2309 |
2187 |
0.947 |
36 |
444 |
| |
|
2 |
E |
1004 |
975 |
0.971 |
36 |
445 |
| |
|
3 |
T2 |
2322 |
2191 |
0.944 |
36 |
446 |
| |
|
4 |
T2 |
962 |
914 |
0.950 |
36 |
447 |
| LiO |
lithium oxide |
1 |
Σ |
857 |
815 |
0.951 |
37 |
448 |
| NaO |
sodium monoxide |
1 |
Σ |
502 |
492 |
0.982 |
38 |
449 |
| BH3 |
boron trihydride |
2 |
A2" |
1198 |
1148 |
0.958 |
39 |
450 |
| |
|
3 |
E' |
2789 |
2602 |
0.933 |
39 |
451 |
| |
|
4 |
E' |
1262 |
1197 |
0.948 |
39 |
452 |
| BeH |
beryllium monohydride |
1 |
Σ |
2115 |
2061 |
0.974 |
40 |
453 |
| PH2 |
Phosphino radical |
1 |
A1 |
2455 |
2310 |
0.941 |
41 |
454 |
| |
|
2 |
A1 |
1175 |
1102 |
0.938 |
41 |
455 |
| SiH3 |
silyl |
1 |
A1 |
2281 |
2136 |
0.936 |
42 |
456 |
| |
|
2 |
A1 |
806 |
728 |
0.904 |
42 |
457 |
| |
|
3 |
E |
2319 |
2185 |
0.942 |
42 |
458 |
| |
|
4 |
E |
971 |
922 |
0.949 |
42 |
459 |
| BH |
Boron monohydride |
1 |
Σ |
2411 |
2367 |
0.982 |
43 |
460 |
| NH2 |
Amino radical |
1 |
A1 |
3436 |
3219 |
0.937 |
44 |
461 |
| |
|
2 |
A1 |
1601 |
1497 |
0.935 |
44 |
462 |
| |
|
3 |
B2 |
3541 |
3301 |
0.932 |
44 |
463 |
| NH |
Imidogen |
1 |
Σ |
3334 |
3283 |
0.985 |
45 |
464 |
| |
|
1 |
Σ |
3385 |
3283 |
0.970 |
45 |
465 |
| |
|
1 |
Σ |
3334 |
3314 |
0.994 |
45 |
466 |
| |
|
1 |
Σ |
3385 |
3314 |
0.979 |
45 |
467 |
| SiH |
Silylidyne |
1 |
Σ |
2090 |
2043 |
0.977 |
46 |
468 |
| SiH2 |
silicon dihydride |
1 |
A1 |
2126 |
1996 |
0.939 |
47 |
469 |
| |
|
1 |
A1 |
2262 |
1996 |
0.882 |
47 |
470 |
| |
|
2 |
A1 |
1060 |
999 |
0.943 |
47 |
471 |
| |
|
2 |
A1 |
922 |
999 |
1.084 |
47 |
472 |
| |
|
3 |
B2 |
2129 |
1993 |
0.936 |
47 |
473 |
| |
|
3 |
B2 |
2322 |
1993 |
0.858 |
47 |
474 |
| SH |
Mercapto radical |
1 |
Σ |
2757 |
2696 |
0.978 |
48 |
475 |
| PH |
phosphorus monohydride |
1 |
Σ |
2407 |
2364 |
0.982 |
49 |
476 |
| |
|
1 |
Σ |
2431 |
2364 |
0.972 |
49 |
477 |
| |
|
1 |
Σ |
2407 |
2415 |
1.003 |
49 |
478 |
| |
|
1 |
Σ |
2431 |
2415 |
0.993 |
49 |
479 |
| |
|
1 |
Σ |
2407 |
2403 |
0.998 |
49 |
480 |
| |
|
1 |
Σ |
2431 |
2403 |
0.988 |
49 |
481 |
| AlH |
aluminum monohydride |
1 |
Σ |
1727 |
1682 |
0.974 |
50 |
482 |
| MgH |
magnesium monohydride |
1 |
Σ |
1500 |
1493 |
0.996 |
51 |
483 |
| BH2 |
boron dihydride |
2 |
A1 |
1084 |
954 |
0.880 |
52 |
484 |
| AlH2 |
aluminum dihydride |
1 |
A1 |
1892 |
1770 |
0.935 |
53 |
485 |
| |
|
2 |
A1 |
789 |
760 |
0.963 |
53 |
486 |
| |
|
3 |
B2 |
1929 |
1807 |
0.936 |
53 |
487 |
How do we calculate the scaling factor?
Histogram of vibrational frequency ratios
Ratios greater than 1.35 are in the 1.35 bin.
Ratios less than 0.7 are in the 0.7 bin.
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250 |
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200 |
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100 |
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50 |
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0 |
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| |
0.70 |
0.75 |
0.80 |
0.85 |
0.90 |
0.95 |
1.00 |
1.05 |
1.10 |
1.15 |
1.20 |
1.25 |
1.30 |
1.35 |
| Ratio of experimental frequency to calculated frequency |