Vibrational frequency scaling factors
Calculated vibrational frequencies ("theory" in table) are calculated at
CCD/6-31+G**
| Scale factor |
How many |
Source |
| Molecules |
Vibrations |
| 0.942 ± 0.024 |
49 |
379 |
cccbdb |
Jump to histogram
| Formula |
Name |
Mode |
Symmetry |
Frequency |
Count
|
| Theory |
Experiment |
ratio |
molecules |
vibrations |
| CCl4 |
Carbon tetrachloride |
1 |
A1 |
479 |
459 |
0.959 |
1 |
1 |
| |
|
2 |
E |
226 |
217 |
0.960 |
1 |
2 |
| |
|
3 |
T2 |
843 |
776 |
0.921 |
1 |
3 |
| |
|
4 |
T2 |
332 |
314 |
0.946 |
1 |
4 |
| CH4 |
Methane |
1 |
A1 |
3104 |
2917 |
0.940 |
2 |
5 |
| |
|
2 |
E |
1596 |
1534 |
0.961 |
2 |
6 |
| |
|
3 |
T2 |
3236 |
3019 |
0.933 |
2 |
7 |
| |
|
4 |
T2 |
1399 |
1306 |
0.933 |
2 |
8 |
| CH3NH2 |
methyl amine |
1 |
A' |
3593 |
3361 |
0.935 |
3 |
9 |
| |
|
2 |
A' |
3162 |
2961 |
0.936 |
3 |
10 |
| |
|
3 |
A' |
3072 |
2820 |
0.918 |
3 |
11 |
| |
|
4 |
A' |
1717 |
1623 |
0.945 |
3 |
12 |
| |
|
5 |
A' |
1551 |
1473 |
0.950 |
3 |
13 |
| |
|
6 |
A' |
1510 |
1430 |
0.947 |
3 |
14 |
| |
|
7 |
A' |
1209 |
1130 |
0.934 |
3 |
15 |
| |
|
8 |
A' |
1097 |
1044 |
0.952 |
3 |
16 |
| |
|
9 |
A' |
880 |
780 |
0.887 |
3 |
17 |
| |
|
10 |
A" |
3689 |
3427 |
0.929 |
3 |
18 |
| |
|
11 |
A" |
3204 |
2985 |
0.932 |
3 |
19 |
| |
|
12 |
A" |
1569 |
1485 |
0.946 |
3 |
20 |
| |
|
13 |
A" |
1384 |
1335 |
0.964 |
3 |
21 |
| |
|
14 |
A" |
991 |
1195 |
1.206 |
3 |
22 |
| |
|
15 |
A" |
324 |
268 |
0.828 |
3 |
23 |
| CH3CH2NH2 |
Ethylamine |
1 |
A' |
3574 |
3345 |
0.936 |
4 |
24 |
| |
|
2 |
A' |
3181 |
2985 |
0.938 |
4 |
25 |
| |
|
3 |
A' |
3118 |
2840 |
0.911 |
4 |
26 |
| |
|
4 |
A' |
3095 |
2860 |
0.924 |
4 |
27 |
| |
|
5 |
A' |
1714 |
1622 |
0.946 |
4 |
28 |
| |
|
6 |
A' |
1555 |
1487 |
0.957 |
4 |
29 |
| |
|
7 |
A' |
1538 |
1465 |
0.953 |
4 |
30 |
| |
|
8 |
A' |
1466 |
1378 |
0.940 |
4 |
31 |
| |
|
9 |
A' |
1428 |
1397 |
0.979 |
4 |
32 |
| |
|
10 |
A' |
1183 |
1016 |
0.859 |
4 |
33 |
| |
|
11 |
A' |
1114 |
1086 |
0.975 |
4 |
34 |
| |
|
12 |
A' |
922 |
892 |
0.968 |
4 |
35 |
| |
|
13 |
A' |
887 |
773 |
0.872 |
4 |
36 |
| |
|
14 |
A' |
410 |
403 |
0.982 |
4 |
37 |
| |
|
15 |
A" |
3670 |
3412 |
0.930 |
4 |
38 |
| |
|
16 |
A" |
3186 |
2924 |
0.918 |
4 |
39 |
| |
|
17 |
A" |
3159 |
2906 |
0.920 |
4 |
40 |
| |
|
18 |
A" |
1544 |
1455 |
0.943 |
4 |
41 |
| |
|
19 |
A" |
1419 |
1238 |
0.872 |
4 |
42 |
| |
|
20 |
A" |
1310 |
1293 |
0.987 |
4 |
43 |
| |
|
21 |
A" |
1028 |
1117 |
1.087 |
4 |
44 |
| |
|
22 |
A" |
794 |
816 |
1.027 |
4 |
45 |
| |
|
23 |
A" |
297 |
259 |
0.873 |
4 |
46 |
| |
|
24 |
A" |
256 |
218 |
0.853 |
4 |
47 |
| HNCO |
Isocyanic acid |
1 |
A' |
3785 |
3538 |
0.935 |
5 |
48 |
| |
|
2 |
A' |
2351 |
2269 |
0.965 |
5 |
49 |
| |
|
3 |
A' |
1353 |
1327 |
0.981 |
5 |
50 |
| |
|
4 |
A' |
783 |
777 |
0.992 |
5 |
51 |
| |
|
5 |
A' |
562 |
577 |
1.028 |
5 |
52 |
| |
|
6 |
A" |
618 |
656 |
1.061 |
5 |
53 |
| CH3COOCH3 |
methyl acetate |
1 |
A' |
3256 |
3035 |
0.932 |
6 |
54 |
| |
|
2 |
A' |
3253 |
3031 |
0.932 |
6 |
55 |
| |
|
3 |
A' |
3136 |
2966 |
0.946 |
6 |
56 |
| |
|
4 |
A' |
3133 |
2964 |
0.946 |
6 |
57 |
| |
|
5 |
A' |
1865 |
1771 |
0.950 |
6 |
58 |
| |
|
6 |
A' |
1553 |
1460 |
0.940 |
6 |
59 |
| |
|
7 |
A' |
1528 |
1440 |
0.943 |
6 |
60 |
| |
|
8 |
A' |
1523 |
1430 |
0.939 |
6 |
61 |
| |
|
9 |
A' |
1458 |
1375 |
0.943 |
6 |
62 |
| |
|
10 |
A' |
1335 |
1248 |
0.935 |
6 |
63 |
| |
|
11 |
A' |
1244 |
1159 |
0.932 |
6 |
64 |
| |
|
12 |
A' |
1123 |
1060 |
0.944 |
6 |
65 |
| |
|
13 |
A' |
1023 |
980 |
0.958 |
6 |
66 |
| |
|
14 |
A' |
886 |
844 |
0.952 |
6 |
67 |
| |
|
15 |
A' |
657 |
639 |
0.973 |
6 |
68 |
| |
|
16 |
A' |
432 |
429 |
0.992 |
6 |
69 |
| |
|
17 |
A' |
291 |
303 |
1.040 |
6 |
70 |
| |
|
18 |
A" |
3227 |
3005 |
0.931 |
6 |
71 |
| |
|
19 |
A" |
3215 |
2994 |
0.931 |
6 |
72 |
| |
|
20 |
A" |
1537 |
1460 |
0.950 |
6 |
73 |
| |
|
21 |
A" |
1525 |
1430 |
0.938 |
6 |
74 |
| |
|
22 |
A" |
1206 |
1187 |
0.984 |
6 |
75 |
| |
|
23 |
A" |
1097 |
1036 |
0.945 |
6 |
76 |
| |
|
24 |
A" |
614 |
607 |
0.988 |
6 |
77 |
| |
|
25 |
A" |
178 |
187 |
1.053 |
6 |
78 |
| |
|
26 |
A" |
153 |
136 |
0.890 |
6 |
79 |
| |
|
27 |
A" |
60 |
110 |
1.830 |
6 |
80 |
| CH2CHCH3 |
Propene |
1 |
A' |
3312 |
3090 |
0.933 |
7 |
81 |
| |
|
2 |
A' |
3226 |
3013 |
0.934 |
7 |
82 |
| |
|
3 |
A' |
3215 |
2991 |
0.930 |
7 |
83 |
| |
|
4 |
A' |
3192 |
2954 |
0.926 |
7 |
84 |
| |
|
5 |
A' |
3100 |
2871 |
0.926 |
7 |
85 |
| |
|
6 |
A' |
1756 |
1650 |
0.940 |
7 |
86 |
| |
|
7 |
A' |
1547 |
1470 |
0.950 |
7 |
87 |
| |
|
8 |
A' |
1501 |
1420 |
0.946 |
7 |
88 |
| |
|
9 |
A' |
1461 |
1378 |
0.943 |
7 |
89 |
| |
|
10 |
A' |
1356 |
1297 |
0.956 |
7 |
90 |
| |
|
11 |
A' |
1224 |
1171 |
0.957 |
7 |
91 |
| |
|
12 |
A' |
971 |
963 |
0.991 |
7 |
92 |
| |
|
13 |
A' |
952 |
920 |
0.967 |
7 |
93 |
| |
|
14 |
A' |
430 |
428 |
0.995 |
7 |
94 |
| |
|
15 |
A" |
3169 |
2954 |
0.932 |
7 |
95 |
| |
|
16 |
A" |
1526 |
1443 |
0.946 |
7 |
96 |
| |
|
17 |
A" |
1096 |
1045 |
0.954 |
7 |
97 |
| |
|
18 |
A" |
1026 |
991 |
0.966 |
7 |
98 |
| |
|
19 |
A" |
927 |
912 |
0.983 |
7 |
99 |
| |
|
20 |
A" |
585 |
578 |
0.988 |
7 |
100 |
| |
|
21 |
A" |
190 |
174 |
0.915 |
7 |
101 |
| CH3CH2CHO |
Propanal |
1 |
A' |
3206 |
2981 |
0.930 |
8 |
102 |
| |
|
2 |
A' |
3123 |
2904 |
0.930 |
8 |
103 |
| |
|
3 |
A' |
3094 |
2895 |
0.936 |
8 |
104 |
| |
|
4 |
A' |
3019 |
2809 |
0.930 |
8 |
105 |
| |
|
5 |
A' |
1850 |
1743 |
0.942 |
8 |
106 |
| |
|
6 |
A' |
1548 |
1460 |
0.943 |
8 |
107 |
| |
|
7 |
A' |
1514 |
1416 |
0.935 |
8 |
108 |
| |
|
8 |
A' |
1478 |
1390 |
0.940 |
8 |
109 |
| |
|
9 |
A' |
1456 |
1376 |
0.945 |
8 |
110 |
| |
|
10 |
A' |
1423 |
1335 |
0.938 |
8 |
111 |
| |
|
11 |
A' |
1149 |
1093 |
0.951 |
8 |
112 |
| |
|
12 |
A' |
1034 |
993 |
0.960 |
8 |
113 |
| |
|
13 |
A' |
888 |
848 |
0.955 |
8 |
114 |
| |
|
14 |
A' |
682 |
668 |
0.979 |
8 |
115 |
| |
|
15 |
A' |
263 |
271 |
1.032 |
8 |
116 |
| |
|
16 |
A" |
3213 |
2992 |
0.931 |
8 |
117 |
| |
|
17 |
A" |
3132 |
2942 |
0.939 |
8 |
118 |
| |
|
18 |
A" |
1543 |
1451 |
0.941 |
8 |
119 |
| |
|
19 |
A" |
1313 |
1250 |
0.952 |
8 |
120 |
| |
|
20 |
A" |
1183 |
1118 |
0.945 |
8 |
121 |
| |
|
21 |
A" |
924 |
892 |
0.966 |
8 |
122 |
| |
|
22 |
A" |
698 |
660 |
0.945 |
8 |
123 |
| |
|
23 |
A" |
237 |
220 |
0.928 |
8 |
124 |
| |
|
24 |
A" |
130 |
135 |
1.039 |
8 |
125 |
| C5H8 |
Cyclopentene |
1 |
A' |
3283 |
3066 |
0.934 |
9 |
126 |
| |
|
2 |
A' |
3181 |
2958 |
0.930 |
9 |
127 |
| |
|
3 |
A' |
3150 |
2916 |
0.926 |
9 |
128 |
| |
|
4 |
A' |
3121 |
2902 |
0.930 |
9 |
129 |
| |
|
5 |
A' |
3091 |
2852 |
0.923 |
9 |
130 |
| |
|
6 |
A' |
1717 |
1616 |
0.941 |
9 |
131 |
| |
|
7 |
A' |
1562 |
1467 |
0.939 |
9 |
132 |
| |
|
8 |
A' |
1534 |
1449 |
0.944 |
9 |
133 |
| |
|
9 |
A' |
1382 |
1302 |
0.942 |
9 |
134 |
| |
|
10 |
A' |
1263 |
1284 |
1.016 |
9 |
135 |
| |
|
11 |
A' |
1159 |
1213 |
1.047 |
9 |
136 |
| |
|
12 |
A' |
1103 |
1048 |
0.950 |
9 |
137 |
| |
|
13 |
A' |
1002 |
964 |
0.962 |
9 |
138 |
| |
|
14 |
A' |
936 |
962 |
1.028 |
9 |
139 |
| |
|
15 |
A' |
854 |
904 |
1.059 |
9 |
140 |
| |
|
16 |
A' |
722 |
692 |
0.958 |
9 |
141 |
| |
|
17 |
A' |
612 |
603 |
0.986 |
9 |
142 |
| |
|
18 |
A' |
173 |
254 |
1.468 |
9 |
143 |
| |
|
19 |
A" |
3258 |
3039 |
0.933 |
9 |
144 |
| |
|
20 |
A" |
3148 |
2967 |
0.943 |
9 |
145 |
| |
|
21 |
A" |
3092 |
2927 |
0.947 |
9 |
146 |
| |
|
22 |
A" |
1544 |
1467 |
0.950 |
9 |
147 |
| |
|
23 |
A" |
1424 |
1432 |
1.005 |
9 |
148 |
| |
|
24 |
A" |
1370 |
1356 |
0.990 |
9 |
149 |
| |
|
25 |
A" |
1348 |
1302 |
0.966 |
9 |
150 |
| |
|
26 |
A" |
1256 |
1297 |
1.032 |
9 |
151 |
| |
|
27 |
A" |
1174 |
1207 |
1.028 |
9 |
152 |
| |
|
28 |
A" |
1073 |
1113 |
1.037 |
9 |
153 |
| |
|
29 |
A" |
967 |
1082 |
1.118 |
9 |
154 |
| |
|
30 |
A" |
945 |
937 |
0.992 |
9 |
155 |
| |
|
31 |
A" |
919 |
800 |
0.870 |
9 |
156 |
| |
|
32 |
A" |
787 |
702 |
0.891 |
9 |
157 |
| |
|
33 |
A" |
393 |
387 |
0.984 |
9 |
158 |
| C4H4N2 |
Pyrazine |
1 |
Ag |
3277 |
3055 |
0.932 |
10 |
159 |
| |
|
2 |
Ag |
1683 |
1580 |
0.939 |
10 |
160 |
| |
|
3 |
Ag |
1286 |
1233 |
0.959 |
10 |
161 |
| |
|
4 |
Ag |
1058 |
1016 |
0.960 |
10 |
162 |
| |
|
5 |
Ag |
615 |
602 |
0.979 |
10 |
163 |
| |
|
6 |
Au |
967 |
960 |
0.993 |
10 |
164 |
| |
|
7 |
Au |
353 |
350 |
0.990 |
10 |
165 |
| |
|
8 |
B1g |
947 |
927 |
0.979 |
10 |
166 |
| |
|
9 |
B1u |
3258 |
3012 |
0.924 |
10 |
167 |
| |
|
10 |
B1u |
1558 |
1483 |
0.952 |
10 |
168 |
| |
|
11 |
B1u |
1188 |
1130 |
0.951 |
10 |
169 |
| |
|
12 |
B1u |
1054 |
1018 |
0.966 |
10 |
170 |
| |
|
13 |
B2g |
938 |
983 |
1.048 |
10 |
171 |
| |
|
14 |
B2g |
708 |
756 |
1.068 |
10 |
172 |
| |
|
15 |
B2u |
3273 |
3069 |
0.938 |
10 |
173 |
| |
|
16 |
B2u |
1477 |
1411 |
0.955 |
10 |
174 |
| |
|
17 |
B2u |
1182 |
1149 |
0.972 |
10 |
175 |
| |
|
18 |
B2u |
1119 |
1063 |
0.950 |
10 |
176 |
| |
|
19 |
B3g |
3257 |
3040 |
0.933 |
10 |
177 |
| |
|
20 |
B3g |
1631 |
1525 |
0.935 |
10 |
178 |
| |
|
21 |
B3g |
1405 |
1346 |
0.958 |
10 |
179 |
| |
|
22 |
B3g |
724 |
704 |
0.973 |
10 |
180 |
| |
|
23 |
B3u |
806 |
785 |
0.974 |
10 |
181 |
| |
|
24 |
B3u |
425 |
418 |
0.983 |
10 |
182 |
| C5H6 |
1,3-Cyclopentadiene |
1 |
A1 |
3310 |
3091 |
0.934 |
11 |
183 |
| |
|
2 |
A1 |
3285 |
3075 |
0.936 |
11 |
184 |
| |
|
3 |
A1 |
3101 |
2886 |
0.931 |
11 |
185 |
| |
|
4 |
A1 |
1617 |
1500 |
0.927 |
11 |
186 |
| |
|
5 |
A1 |
1484 |
1378 |
0.929 |
11 |
187 |
| |
|
6 |
A1 |
1447 |
1365 |
0.943 |
11 |
188 |
| |
|
7 |
A1 |
1161 |
1106 |
0.953 |
11 |
189 |
| |
|
8 |
A1 |
1035 |
994 |
0.960 |
11 |
190 |
| |
|
9 |
A1 |
952 |
915 |
0.961 |
11 |
191 |
| |
|
10 |
A1 |
819 |
802 |
0.979 |
11 |
192 |
| |
|
11 |
A2 |
1146 |
1100 |
0.960 |
11 |
193 |
| |
|
12 |
A2 |
908 |
941 |
1.036 |
11 |
194 |
| |
|
13 |
A2 |
712 |
700 |
0.983 |
11 |
195 |
| |
|
14 |
A2 |
501 |
516 |
1.031 |
11 |
196 |
| |
|
15 |
B1 |
3141 |
2900 |
0.923 |
11 |
197 |
| |
|
16 |
B1 |
959 |
925 |
0.965 |
11 |
198 |
| |
|
17 |
B1 |
939 |
891 |
0.949 |
11 |
199 |
| |
|
18 |
B1 |
680 |
664 |
0.976 |
11 |
200 |
| |
|
19 |
B1 |
338 |
350 |
1.036 |
11 |
201 |
| |
|
20 |
B2 |
3302 |
3105 |
0.940 |
11 |
202 |
| |
|
21 |
B2 |
3276 |
3043 |
0.929 |
11 |
203 |
| |
|
22 |
B2 |
1687 |
1580 |
0.937 |
11 |
204 |
| |
|
23 |
B2 |
1364 |
1292 |
0.947 |
11 |
205 |
| |
|
24 |
B2 |
1322 |
1239 |
0.937 |
11 |
206 |
| |
|
25 |
B2 |
1145 |
1090 |
0.952 |
11 |
207 |
| |
|
26 |
B2 |
1001 |
959 |
0.958 |
11 |
208 |
| |
|
27 |
B2 |
825 |
805 |
0.976 |
11 |
209 |
| CH3CHCHCH3 |
2-Butene, (Z)- |
1 |
A1 |
3233 |
3033 |
0.938 |
12 |
210 |
| |
|
2 |
A1 |
3216 |
2965 |
0.922 |
12 |
211 |
| |
|
3 |
A1 |
3105 |
2878 |
0.927 |
12 |
212 |
| |
|
4 |
A1 |
1779 |
1669 |
0.938 |
12 |
213 |
| |
|
5 |
A1 |
1550 |
1448 |
0.934 |
12 |
214 |
| |
|
6 |
A1 |
1475 |
1397 |
0.947 |
12 |
215 |
| |
|
7 |
A1 |
1325 |
1261 |
0.952 |
12 |
216 |
| |
|
8 |
A1 |
1056 |
986 |
0.934 |
12 |
217 |
| |
|
9 |
A1 |
891 |
880 |
0.987 |
12 |
218 |
| |
|
10 |
A1 |
300 |
290 |
0.967 |
12 |
219 |
| |
|
11 |
A2 |
3165 |
2988 |
0.944 |
12 |
220 |
| |
|
12 |
A2 |
1526 |
1464 |
0.959 |
12 |
221 |
| |
|
13 |
A2 |
1078 |
1037 |
0.962 |
12 |
222 |
| |
|
14 |
A2 |
998 |
880 |
0.882 |
12 |
223 |
| |
|
15 |
A2 |
374 |
396 |
1.058 |
12 |
224 |
| |
|
17 |
B1 |
3166 |
2965 |
0.937 |
12 |
225 |
| |
|
18 |
B1 |
1533 |
1448 |
0.944 |
12 |
226 |
| |
|
19 |
B1 |
1096 |
986 |
0.900 |
12 |
227 |
| |
|
20 |
B1 |
703 |
673 |
0.958 |
12 |
228 |
| |
|
22 |
B2 |
3212 |
3033 |
0.944 |
12 |
229 |
| |
|
23 |
B2 |
3197 |
2965 |
0.927 |
12 |
230 |
| |
|
24 |
B2 |
3102 |
2900 |
0.935 |
12 |
231 |
| |
|
25 |
B2 |
1540 |
1448 |
0.940 |
12 |
232 |
| |
|
26 |
B2 |
1488 |
1420 |
0.954 |
12 |
233 |
| |
|
27 |
B2 |
1436 |
1397 |
0.973 |
12 |
234 |
| |
|
28 |
B2 |
1187 |
1135 |
0.956 |
12 |
235 |
| |
|
29 |
B2 |
1009 |
986 |
0.977 |
12 |
236 |
| |
|
30 |
B2 |
572 |
583 |
1.019 |
12 |
237 |
| C5H8 |
1,4-Pentadiene |
1 |
A |
3311 |
3080 |
0.930 |
13 |
238 |
| |
|
2 |
A |
3226 |
3012 |
0.934 |
13 |
239 |
| |
|
3 |
A |
3214 |
3012 |
0.937 |
13 |
240 |
| |
|
4 |
A |
3093 |
2900 |
0.937 |
13 |
241 |
| |
|
5 |
A |
1753 |
1644 |
0.938 |
13 |
242 |
| |
|
6 |
A |
1528 |
1433 |
0.938 |
13 |
243 |
| |
|
7 |
A |
1494 |
1413 |
0.946 |
13 |
244 |
| |
|
8 |
A |
1351 |
1295 |
0.959 |
13 |
245 |
| |
|
9 |
A |
1291 |
1263 |
0.978 |
13 |
246 |
| |
|
10 |
A |
1109 |
1120 |
1.010 |
13 |
247 |
| |
|
11 |
A |
1028 |
995 |
0.968 |
13 |
248 |
| |
|
12 |
A |
940 |
918 |
0.977 |
13 |
249 |
| |
|
13 |
A |
936 |
876 |
0.936 |
13 |
250 |
| |
|
14 |
A |
681 |
562 |
0.825 |
13 |
251 |
| |
|
15 |
A |
378 |
421 |
1.114 |
13 |
252 |
| |
|
16 |
A |
301 |
137 |
0.455 |
13 |
253 |
| |
|
17 |
A |
89 |
102 |
1.151 |
13 |
254 |
| |
|
18 |
B |
3311 |
3080 |
0.930 |
13 |
255 |
| |
|
19 |
B |
3225 |
3012 |
0.934 |
13 |
256 |
| |
|
20 |
B |
3214 |
3012 |
0.937 |
13 |
257 |
| |
|
21 |
B |
3142 |
2982 |
0.949 |
13 |
258 |
| |
|
22 |
B |
1745 |
1640 |
0.940 |
13 |
259 |
| |
|
23 |
B |
1502 |
1413 |
0.941 |
13 |
260 |
| |
|
24 |
B |
1364 |
1314 |
0.963 |
13 |
261 |
| |
|
25 |
B |
1338 |
1280 |
0.956 |
13 |
262 |
| |
|
26 |
B |
1204 |
1060 |
0.880 |
13 |
263 |
| |
|
27 |
B |
1032 |
995 |
0.964 |
13 |
264 |
| |
|
28 |
B |
998 |
995 |
0.997 |
13 |
265 |
| |
|
29 |
B |
940 |
920 |
0.979 |
13 |
266 |
| |
|
30 |
B |
918 |
760 |
0.828 |
13 |
267 |
| |
|
31 |
B |
611 |
721 |
1.181 |
13 |
268 |
| |
|
32 |
B |
457 |
421 |
0.922 |
13 |
269 |
| |
|
33 |
B |
97 |
331 |
3.422 |
13 |
270 |
| CH3CHCHCH3 |
2-Butene, (E)- |
1 |
Ag |
3205 |
3011 |
0.939 |
14 |
271 |
| |
|
2 |
Ag |
3188 |
2954 |
0.927 |
14 |
272 |
| |
|
3 |
Ag |
3097 |
2874 |
0.928 |
14 |
273 |
| |
|
4 |
Ag |
1788 |
1680 |
0.939 |
14 |
274 |
| |
|
5 |
Ag |
1545 |
1457 |
0.943 |
14 |
275 |
| |
|
6 |
Ag |
1469 |
1385 |
0.943 |
14 |
276 |
| |
|
7 |
Ag |
1364 |
1309 |
0.960 |
14 |
277 |
| |
|
8 |
Ag |
1202 |
1146 |
0.954 |
14 |
278 |
| |
|
9 |
Ag |
900 |
866 |
0.962 |
14 |
279 |
| |
|
10 |
Ag |
507 |
501 |
0.988 |
14 |
280 |
| |
|
11 |
Au |
3165 |
2960 |
0.935 |
14 |
281 |
| |
|
12 |
Au |
1525 |
1449 |
0.950 |
14 |
282 |
| |
|
13 |
Au |
1099 |
1057 |
0.962 |
14 |
283 |
| |
|
14 |
Au |
1001 |
964 |
0.963 |
14 |
284 |
| |
|
15 |
Au |
245 |
224 |
0.915 |
14 |
285 |
| |
|
17 |
Bg |
3165 |
2954 |
0.933 |
14 |
286 |
| |
|
18 |
Bg |
1526 |
1457 |
0.955 |
14 |
287 |
| |
|
19 |
Bg |
1086 |
1039 |
0.956 |
14 |
288 |
| |
|
20 |
Bg |
747 |
750 |
1.004 |
14 |
289 |
| |
|
22 |
Bu |
3211 |
3021 |
0.941 |
14 |
290 |
| |
|
23 |
Bu |
3186 |
2960 |
0.929 |
14 |
291 |
| |
|
24 |
Bu |
3097 |
2899 |
0.936 |
14 |
292 |
| |
|
25 |
Bu |
1550 |
1449 |
0.935 |
14 |
293 |
| |
|
26 |
Bu |
1469 |
1393 |
0.948 |
14 |
294 |
| |
|
27 |
Bu |
1369 |
1311 |
0.958 |
14 |
295 |
| |
|
28 |
Bu |
1112 |
1072 |
0.964 |
14 |
296 |
| |
|
29 |
Bu |
1015 |
987 |
0.973 |
14 |
297 |
| |
|
30 |
Bu |
286 |
261 |
0.914 |
14 |
298 |
| H2 |
Hydrogen diatomic |
1 |
Σg |
4520 |
4401 |
0.974 |
15 |
299 |
| CF2 |
Difluoromethylene |
1 |
A1 |
1257 |
1225 |
0.975 |
16 |
300 |
| |
|
1 |
A1 |
1159 |
1225 |
1.057 |
16 |
301 |
| |
|
2 |
A1 |
666 |
667 |
1.002 |
16 |
302 |
| |
|
2 |
A1 |
511 |
667 |
1.306 |
16 |
303 |
| |
|
3 |
B2 |
1150 |
1114 |
0.969 |
16 |
304 |
| |
|
3 |
B2 |
1341 |
1114 |
0.831 |
16 |
305 |
| C3H4 |
cyclopropene |
1 |
A1 |
3388 |
3158 |
0.932 |
17 |
306 |
| |
|
2 |
A1 |
3142 |
2909 |
0.926 |
17 |
307 |
| |
|
3 |
A1 |
1753 |
1653 |
0.943 |
17 |
308 |
| |
|
4 |
A1 |
1580 |
1483 |
0.939 |
17 |
309 |
| |
|
5 |
A1 |
1202 |
1110 |
0.923 |
17 |
310 |
| |
|
6 |
A1 |
958 |
905 |
0.945 |
17 |
311 |
| |
|
7 |
A2 |
1041 |
996 |
0.957 |
17 |
312 |
| |
|
8 |
A2 |
825 |
820 |
0.994 |
17 |
313 |
| |
|
9 |
B1 |
3215 |
2995 |
0.932 |
17 |
314 |
| |
|
10 |
B1 |
1142 |
1088 |
0.953 |
17 |
315 |
| |
|
11 |
B1 |
568 |
569 |
1.002 |
17 |
316 |
| |
|
12 |
B2 |
3342 |
3124 |
0.935 |
17 |
317 |
| |
|
13 |
B2 |
1122 |
1043 |
0.930 |
17 |
318 |
| |
|
14 |
B2 |
1080 |
1011 |
0.937 |
17 |
319 |
| |
|
15 |
B2 |
818 |
769 |
0.940 |
17 |
320 |
| CS |
carbon monosulfide |
1 |
Σ |
1369 |
1285 |
0.939 |
18 |
321 |
| CH |
Methylidyne |
1 |
Σ |
2913 |
2861 |
0.982 |
19 |
322 |
| |
|
1 |
Σ |
3232 |
2861 |
0.885 |
19 |
323 |
| |
|
1 |
Σ |
2913 |
3145 |
1.079 |
19 |
324 |
| |
|
1 |
Σ |
3232 |
3145 |
0.973 |
19 |
325 |
| |
|
1 |
Σ |
2913 |
2931 |
1.006 |
19 |
326 |
| |
|
1 |
Σ |
3232 |
2931 |
0.907 |
19 |
327 |
| OH |
Hydroxyl radical |
1 |
Σ |
3799 |
3738 |
0.984 |
20 |
328 |
| LiH |
Lithium Hydride |
1 |
Σ |
1386 |
1405 |
1.014 |
21 |
329 |
| NaH |
sodium hydride |
1 |
Σ |
1159 |
1172 |
1.011 |
22 |
330 |
| HCl |
Hydrogen chloride |
1 |
Σ |
3076 |
2991 |
0.973 |
23 |
331 |
| HF |
Hydrogen fluoride |
1 |
Σ |
4169 |
4138 |
0.993 |
24 |
332 |
| NH3 |
Ammonia |
1 |
A1 |
3561 |
3337 |
0.937 |
25 |
333 |
| |
|
2 |
A1 |
1074 |
950 |
0.885 |
25 |
334 |
| |
|
3 |
E |
3715 |
3444 |
0.927 |
25 |
335 |
| |
|
4 |
E |
1716 |
1627 |
0.948 |
25 |
336 |
| MgH2 |
magnesium dihydride |
2 |
Σu |
1630 |
1572 |
0.964 |
26 |
337 |
| |
|
3 |
Πu |
449 |
440 |
0.980 |
26 |
338 |
| H2O |
Water |
1 |
A1 |
3902 |
3657 |
0.937 |
27 |
339 |
| |
|
2 |
A1 |
1650 |
1595 |
0.966 |
27 |
340 |
| |
|
3 |
B2 |
4030 |
3756 |
0.932 |
27 |
341 |
| H2S |
Hydrogen sulfide |
1 |
A1 |
2791 |
2615 |
0.937 |
28 |
342 |
| |
|
2 |
A1 |
1268 |
1183 |
0.933 |
28 |
343 |
| |
|
3 |
B2 |
2813 |
2626 |
0.934 |
28 |
344 |
| AlH3 |
aluminum trihydride |
1 |
A1' |
1979 |
1900 |
0.960 |
29 |
345 |
| |
|
2 |
A2" |
730 |
698 |
0.956 |
29 |
346 |
| |
|
3 |
E' |
1992 |
1883 |
0.945 |
29 |
347 |
| |
|
4 |
E' |
818 |
783 |
0.958 |
29 |
348 |
| BeH2 |
beryllium dihydride |
2 |
Σu |
2299 |
2159 |
0.939 |
30 |
349 |
| |
|
3 |
Πu |
720 |
698 |
0.970 |
30 |
350 |
| PH3 |
Phosphine |
1 |
A1 |
2482 |
2323 |
0.936 |
31 |
351 |
| |
|
2 |
A1 |
1072 |
992 |
0.925 |
31 |
352 |
| |
|
3 |
E |
2496 |
2328 |
0.933 |
31 |
353 |
| |
|
4 |
E |
1167 |
1118 |
0.958 |
31 |
354 |
| SiH4 |
Silane |
1 |
A1 |
2314 |
2187 |
0.945 |
32 |
355 |
| |
|
2 |
E |
1006 |
975 |
0.969 |
32 |
356 |
| |
|
3 |
T2 |
2324 |
2191 |
0.943 |
32 |
357 |
| |
|
4 |
T2 |
964 |
914 |
0.948 |
32 |
358 |
| LiO |
lithium oxide |
1 |
Σ |
794 |
815 |
1.026 |
33 |
359 |
| NaO |
sodium monoxide |
1 |
Σ |
468 |
492 |
1.052 |
34 |
360 |
| BH3 |
boron trihydride |
2 |
A2" |
1194 |
1148 |
0.961 |
35 |
361 |
| |
|
3 |
E' |
2778 |
2602 |
0.937 |
35 |
362 |
| |
|
4 |
E' |
1256 |
1197 |
0.953 |
35 |
363 |
| BeH |
beryllium monohydride |
1 |
Σ |
2114 |
2061 |
0.975 |
36 |
364 |
| PH2 |
Phosphino radical |
1 |
A1 |
2453 |
2310 |
0.942 |
37 |
365 |
| |
|
2 |
A1 |
1173 |
1102 |
0.940 |
37 |
366 |
| SiH3 |
silyl |
1 |
A1 |
2284 |
2136 |
0.935 |
38 |
367 |
| |
|
2 |
A1 |
808 |
728 |
0.901 |
38 |
368 |
| |
|
3 |
E |
2321 |
2185 |
0.942 |
38 |
369 |
| |
|
4 |
E |
973 |
922 |
0.948 |
38 |
370 |
| BH |
Boron monohydride |
1 |
Σ |
2427 |
2367 |
0.975 |
39 |
371 |
| NH2 |
Amino radical |
1 |
A1 |
3445 |
3219 |
0.934 |
40 |
372 |
| |
|
2 |
A1 |
1563 |
1497 |
0.958 |
40 |
373 |
| |
|
3 |
B2 |
3556 |
3301 |
0.928 |
40 |
374 |
| NH |
Imidogen |
1 |
Σ |
3349 |
3283 |
0.980 |
41 |
375 |
| |
|
1 |
Σ |
3394 |
3283 |
0.967 |
41 |
376 |
| |
|
1 |
Σ |
3349 |
3314 |
0.990 |
41 |
377 |
| |
|
1 |
Σ |
3394 |
3314 |
0.976 |
41 |
378 |
| SiH |
Silylidyne |
1 |
Σ |
2092 |
2043 |
0.976 |
42 |
379 |
| SiH2 |
silicon dihydride |
1 |
A1 |
2128 |
1996 |
0.938 |
43 |
380 |
| |
|
1 |
A1 |
2265 |
1996 |
0.881 |
43 |
381 |
| |
|
2 |
A1 |
1058 |
999 |
0.944 |
43 |
382 |
| |
|
2 |
A1 |
923 |
999 |
1.083 |
43 |
383 |
| |
|
3 |
B2 |
2130 |
1993 |
0.936 |
43 |
384 |
| |
|
3 |
B2 |
2324 |
1993 |
0.857 |
43 |
385 |
| SH |
Mercapto radical |
1 |
Σ |
2755 |
2696 |
0.979 |
44 |
386 |
| PH |
phosphorus monohydride |
1 |
Σ |
2407 |
2364 |
0.982 |
45 |
387 |
| |
|
1 |
Σ |
2432 |
2364 |
0.972 |
45 |
388 |
| |
|
1 |
Σ |
2407 |
2415 |
1.003 |
45 |
389 |
| |
|
1 |
Σ |
2432 |
2415 |
0.993 |
45 |
390 |
| |
|
1 |
Σ |
2407 |
2403 |
0.998 |
45 |
391 |
| |
|
1 |
Σ |
2432 |
2403 |
0.988 |
45 |
392 |
| AlH |
aluminum monohydride |
1 |
Σ |
1729 |
1682 |
0.973 |
46 |
393 |
| MgH |
magnesium monohydride |
1 |
Σ |
1499 |
1493 |
0.996 |
47 |
394 |
| BH2 |
boron dihydride |
2 |
A1 |
1067 |
954 |
0.894 |
48 |
395 |
| AlH2 |
aluminum dihydride |
1 |
A1 |
1896 |
1770 |
0.934 |
49 |
396 |
| |
|
2 |
A1 |
792 |
760 |
0.959 |
49 |
397 |
| |
|
3 |
B2 |
1933 |
1807 |
0.935 |
49 |
398 |
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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300 |
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250 |
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200 |
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150 |
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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 |