Vibrational frequency scaling factors
Calculated vibrational frequencies ("theory" in table) are calculated at
QCISD/cc-pVDZ
| Scale factor |
How many |
Source |
| Molecules |
Vibrations |
| 0.959 ± 0.025 |
43 |
378 |
cccbdb |
Jump to histogram
| Formula |
Name |
Mode |
Symmetry |
Frequency |
Count
|
| Theory |
Experiment |
ratio |
molecules |
vibrations |
| CCl4 |
Carbon tetrachloride |
1 |
A1 |
465 |
459 |
0.988 |
1 |
1 |
| |
|
2 |
E |
224 |
217 |
0.967 |
1 |
2 |
| |
|
3 |
T2 |
816 |
776 |
0.951 |
1 |
3 |
| |
|
4 |
T2 |
322 |
314 |
0.975 |
1 |
4 |
| CH4 |
Methane |
1 |
A1 |
3051 |
2917 |
0.956 |
2 |
5 |
| |
|
2 |
E |
1557 |
1534 |
0.985 |
2 |
6 |
| |
|
3 |
T2 |
3184 |
3019 |
0.948 |
2 |
7 |
| |
|
4 |
T2 |
1342 |
1306 |
0.973 |
2 |
8 |
| CH3NH2 |
methyl amine |
1 |
A' |
3492 |
3361 |
0.962 |
3 |
9 |
| |
|
2 |
A' |
3097 |
2961 |
0.956 |
3 |
10 |
| |
|
3 |
A' |
3004 |
2820 |
0.939 |
3 |
11 |
| |
|
4 |
A' |
1673 |
1623 |
0.970 |
3 |
12 |
| |
|
5 |
A' |
1500 |
1473 |
0.982 |
3 |
13 |
| |
|
6 |
A' |
1464 |
1430 |
0.977 |
3 |
14 |
| |
|
7 |
A' |
1204 |
1130 |
0.938 |
3 |
15 |
| |
|
8 |
A' |
1086 |
1044 |
0.961 |
3 |
16 |
| |
|
9 |
A' |
916 |
780 |
0.851 |
3 |
17 |
| |
|
10 |
A" |
3572 |
3427 |
0.960 |
3 |
18 |
| |
|
11 |
A" |
3138 |
2985 |
0.951 |
3 |
19 |
| |
|
12 |
A" |
1519 |
1485 |
0.978 |
3 |
20 |
| |
|
13 |
A" |
1373 |
1335 |
0.972 |
3 |
21 |
| |
|
14 |
A" |
986 |
1195 |
1.212 |
3 |
22 |
| |
|
15 |
A" |
341 |
268 |
0.786 |
3 |
23 |
| CH3CH2NH2 |
Ethylamine |
1 |
A' |
3475 |
3345 |
0.962 |
4 |
24 |
| |
|
2 |
A' |
3129 |
2985 |
0.954 |
4 |
25 |
| |
|
3 |
A' |
3060 |
2840 |
0.928 |
4 |
26 |
| |
|
4 |
A' |
3042 |
2860 |
0.940 |
4 |
27 |
| |
|
5 |
A' |
1671 |
1622 |
0.971 |
4 |
28 |
| |
|
6 |
A' |
1506 |
1487 |
0.987 |
4 |
29 |
| |
|
7 |
A' |
1487 |
1465 |
0.985 |
4 |
30 |
| |
|
8 |
A' |
1420 |
1378 |
0.971 |
4 |
31 |
| |
|
9 |
A' |
1386 |
1397 |
1.008 |
4 |
32 |
| |
|
10 |
A' |
1180 |
1016 |
0.861 |
4 |
33 |
| |
|
11 |
A' |
1101 |
1086 |
0.986 |
4 |
34 |
| |
|
12 |
A' |
946 |
892 |
0.943 |
4 |
35 |
| |
|
13 |
A' |
899 |
773 |
0.860 |
4 |
36 |
| |
|
14 |
A' |
404 |
403 |
0.998 |
4 |
37 |
| |
|
15 |
A" |
3556 |
3412 |
0.960 |
4 |
38 |
| |
|
16 |
A" |
3129 |
2924 |
0.935 |
4 |
39 |
| |
|
17 |
A" |
3098 |
2906 |
0.938 |
4 |
40 |
| |
|
18 |
A" |
1493 |
1455 |
0.975 |
4 |
41 |
| |
|
19 |
A" |
1406 |
1238 |
0.880 |
4 |
42 |
| |
|
20 |
A" |
1281 |
1293 |
1.009 |
4 |
43 |
| |
|
21 |
A" |
1018 |
1117 |
1.098 |
4 |
44 |
| |
|
22 |
A" |
782 |
816 |
1.044 |
4 |
45 |
| |
|
23 |
A" |
325 |
259 |
0.796 |
4 |
46 |
| |
|
24 |
A" |
266 |
218 |
0.819 |
4 |
47 |
| HNCO |
Isocyanic acid |
1 |
A' |
3687 |
3538 |
0.960 |
5 |
48 |
| |
|
2 |
A' |
2313 |
2269 |
0.981 |
5 |
49 |
| |
|
3 |
A' |
1312 |
1327 |
1.012 |
5 |
50 |
| |
|
4 |
A' |
862 |
777 |
0.901 |
5 |
51 |
| |
|
5 |
A' |
556 |
577 |
1.039 |
5 |
52 |
| |
|
6 |
A" |
623 |
656 |
1.054 |
5 |
53 |
| CH2CHCH3 |
Propene |
1 |
A' |
3257 |
3090 |
0.949 |
6 |
54 |
| |
|
2 |
A' |
3173 |
3013 |
0.949 |
6 |
55 |
| |
|
3 |
A' |
3160 |
2991 |
0.947 |
6 |
56 |
| |
|
4 |
A' |
3143 |
2954 |
0.940 |
6 |
57 |
| |
|
5 |
A' |
3051 |
2871 |
0.941 |
6 |
58 |
| |
|
6 |
A' |
1728 |
1650 |
0.955 |
6 |
59 |
| |
|
7 |
A' |
1493 |
1470 |
0.985 |
6 |
60 |
| |
|
8 |
A' |
1457 |
1420 |
0.975 |
6 |
61 |
| |
|
9 |
A' |
1410 |
1378 |
0.977 |
6 |
62 |
| |
|
10 |
A' |
1320 |
1297 |
0.983 |
6 |
63 |
| |
|
11 |
A' |
1194 |
1171 |
0.981 |
6 |
64 |
| |
|
12 |
A' |
944 |
963 |
1.020 |
6 |
65 |
| |
|
13 |
A' |
941 |
920 |
0.978 |
6 |
66 |
| |
|
14 |
A' |
421 |
428 |
1.018 |
6 |
67 |
| |
|
15 |
A" |
3121 |
2954 |
0.947 |
6 |
68 |
| |
|
16 |
A" |
1480 |
1443 |
0.975 |
6 |
69 |
| |
|
17 |
A" |
1067 |
1045 |
0.979 |
6 |
70 |
| |
|
18 |
A" |
1017 |
991 |
0.975 |
6 |
71 |
| |
|
19 |
A" |
927 |
912 |
0.983 |
6 |
72 |
| |
|
20 |
A" |
582 |
578 |
0.993 |
6 |
73 |
| |
|
21 |
A" |
199 |
174 |
0.876 |
6 |
74 |
| C4H9N |
Pyrrolidine |
1 |
A' |
3532 |
3356 |
0.950 |
7 |
75 |
| |
|
2 |
A' |
3147 |
2975 |
0.945 |
7 |
76 |
| |
|
3 |
A' |
3113 |
2927 |
0.940 |
7 |
77 |
| |
|
4 |
A' |
3092 |
2889 |
0.934 |
7 |
78 |
| |
|
5 |
A' |
2968 |
2824 |
0.951 |
7 |
79 |
| |
|
6 |
A' |
1530 |
1484 |
0.970 |
7 |
80 |
| |
|
7 |
A' |
1503 |
1447 |
0.963 |
7 |
81 |
| |
|
8 |
A' |
1414 |
1292 |
0.914 |
7 |
82 |
| |
|
9 |
A' |
1331 |
1273 |
0.956 |
7 |
83 |
| |
|
10 |
A' |
1264 |
1228 |
0.972 |
7 |
84 |
| |
|
11 |
A' |
1237 |
1181 |
0.955 |
7 |
85 |
| |
|
12 |
A' |
1087 |
974 |
0.896 |
7 |
86 |
| |
|
13 |
A' |
1021 |
920 |
0.901 |
7 |
87 |
| |
|
14 |
A' |
961 |
901 |
0.937 |
7 |
88 |
| |
|
15 |
A' |
929 |
871 |
0.937 |
7 |
89 |
| |
|
16 |
A' |
915 |
832 |
0.909 |
7 |
90 |
| |
|
17 |
A' |
777 |
789 |
1.016 |
7 |
91 |
| |
|
18 |
A' |
587 |
579 |
0.986 |
7 |
92 |
| |
|
19 |
A' |
315 |
299 |
0.951 |
7 |
93 |
| |
|
20 |
A" |
3128 |
2967 |
0.949 |
7 |
94 |
| |
|
21 |
A" |
3107 |
2916 |
0.938 |
7 |
95 |
| |
|
22 |
A" |
3080 |
2879 |
0.935 |
7 |
96 |
| |
|
23 |
A" |
2964 |
2818 |
0.951 |
7 |
97 |
| |
|
24 |
A" |
1513 |
1459 |
0.965 |
7 |
98 |
| |
|
25 |
A" |
1479 |
1412 |
0.955 |
7 |
99 |
| |
|
26 |
A" |
1450 |
1341 |
0.925 |
7 |
100 |
| |
|
27 |
A" |
1338 |
1268 |
0.948 |
7 |
101 |
| |
|
28 |
A" |
1314 |
1211 |
0.921 |
7 |
102 |
| |
|
29 |
A" |
1252 |
1203 |
0.961 |
7 |
103 |
| |
|
30 |
A" |
1212 |
1171 |
0.966 |
7 |
104 |
| |
|
31 |
A" |
1153 |
1099 |
0.953 |
7 |
105 |
| |
|
32 |
A" |
1115 |
1023 |
0.918 |
7 |
106 |
| |
|
33 |
A" |
951 |
883 |
0.929 |
7 |
107 |
| |
|
34 |
A" |
876 |
848 |
0.968 |
7 |
108 |
| |
|
35 |
A" |
632 |
600 |
0.950 |
7 |
109 |
| |
|
36 |
A" |
61 |
65 |
1.066 |
7 |
110 |
| C5H8 |
Cyclopentene |
1 |
A' |
3233 |
3066 |
0.948 |
8 |
111 |
| |
|
2 |
A' |
3132 |
2958 |
0.944 |
8 |
112 |
| |
|
3 |
A' |
3104 |
2916 |
0.939 |
8 |
113 |
| |
|
4 |
A' |
3071 |
2902 |
0.945 |
8 |
114 |
| |
|
5 |
A' |
3042 |
2852 |
0.938 |
8 |
115 |
| |
|
6 |
A' |
1692 |
1616 |
0.955 |
8 |
116 |
| |
|
7 |
A' |
1506 |
1467 |
0.974 |
8 |
117 |
| |
|
8 |
A' |
1478 |
1449 |
0.980 |
8 |
118 |
| |
|
9 |
A' |
1346 |
1302 |
0.967 |
8 |
119 |
| |
|
10 |
A' |
1240 |
1284 |
1.036 |
8 |
120 |
| |
|
11 |
A' |
1124 |
1213 |
1.079 |
8 |
121 |
| |
|
12 |
A' |
1075 |
1048 |
0.974 |
8 |
122 |
| |
|
13 |
A' |
989 |
964 |
0.974 |
8 |
123 |
| |
|
14 |
A' |
929 |
962 |
1.036 |
8 |
124 |
| |
|
15 |
A' |
840 |
904 |
1.076 |
8 |
125 |
| |
|
16 |
A' |
717 |
692 |
0.965 |
8 |
126 |
| |
|
17 |
A' |
596 |
603 |
1.011 |
8 |
127 |
| |
|
18 |
A' |
180 |
254 |
1.415 |
8 |
128 |
| |
|
19 |
A" |
3206 |
3039 |
0.948 |
8 |
129 |
| |
|
20 |
A" |
3101 |
2967 |
0.957 |
8 |
130 |
| |
|
21 |
A" |
3043 |
2927 |
0.962 |
8 |
131 |
| |
|
22 |
A" |
1488 |
1467 |
0.986 |
8 |
132 |
| |
|
23 |
A" |
1391 |
1432 |
1.029 |
8 |
133 |
| |
|
24 |
A" |
1341 |
1356 |
1.011 |
8 |
134 |
| |
|
25 |
A" |
1306 |
1302 |
0.997 |
8 |
135 |
| |
|
26 |
A" |
1234 |
1297 |
1.051 |
8 |
136 |
| |
|
27 |
A" |
1149 |
1207 |
1.050 |
8 |
137 |
| |
|
28 |
A" |
1054 |
1113 |
1.056 |
8 |
138 |
| |
|
29 |
A" |
956 |
1082 |
1.132 |
8 |
139 |
| |
|
30 |
A" |
931 |
937 |
1.006 |
8 |
140 |
| |
|
31 |
A" |
898 |
800 |
0.891 |
8 |
141 |
| |
|
32 |
A" |
777 |
702 |
0.903 |
8 |
142 |
| |
|
33 |
A" |
388 |
387 |
0.998 |
8 |
143 |
| C8H8 |
cubane |
1 |
A1g |
3164 |
2995 |
0.947 |
9 |
144 |
| |
|
2 |
A1g |
1030 |
1002 |
0.973 |
9 |
145 |
| |
|
3 |
A2u |
3128 |
2978 |
0.952 |
9 |
146 |
| |
|
4 |
A2u |
1040 |
839 |
0.807 |
9 |
147 |
| |
|
5 |
Eg |
1136 |
1083 |
0.954 |
9 |
148 |
| |
|
6 |
Eg |
915 |
912 |
0.997 |
9 |
149 |
| |
|
7 |
Eu |
1162 |
1151 |
0.991 |
9 |
150 |
| |
|
8 |
Eu |
621 |
617 |
0.993 |
9 |
151 |
| |
|
9 |
T1g |
1156 |
1130 |
0.977 |
9 |
152 |
| |
|
10 |
T1u |
3145 |
2978 |
0.947 |
9 |
153 |
| |
|
11 |
T1u |
1277 |
1230 |
0.963 |
9 |
154 |
| |
|
12 |
T1u |
869 |
853 |
0.982 |
9 |
155 |
| |
|
13 |
T2g |
3137 |
2970 |
0.947 |
9 |
156 |
| |
|
14 |
T2g |
1239 |
1182 |
0.954 |
9 |
157 |
| |
|
15 |
T2g |
840 |
821 |
0.977 |
9 |
158 |
| |
|
16 |
T2g |
671 |
665 |
0.991 |
9 |
159 |
| |
|
17 |
T2u |
1094 |
1036 |
0.947 |
9 |
160 |
| |
|
18 |
T2u |
837 |
829 |
0.991 |
9 |
161 |
| C4H4N2 |
Pyrazine |
1 |
Ag |
3220 |
3055 |
0.949 |
10 |
162 |
| |
|
2 |
Ag |
1664 |
1580 |
0.949 |
10 |
163 |
| |
|
3 |
Ag |
1258 |
1233 |
0.980 |
10 |
164 |
| |
|
4 |
Ag |
1046 |
1016 |
0.972 |
10 |
165 |
| |
|
5 |
Ag |
605 |
602 |
0.995 |
10 |
166 |
| |
|
6 |
Au |
1001 |
960 |
0.959 |
10 |
167 |
| |
|
7 |
Au |
355 |
350 |
0.987 |
10 |
168 |
| |
|
8 |
B1g |
951 |
927 |
0.975 |
10 |
169 |
| |
|
9 |
B1u |
3198 |
3012 |
0.942 |
10 |
170 |
| |
|
10 |
B1u |
1530 |
1483 |
0.969 |
10 |
171 |
| |
|
11 |
B1u |
1169 |
1130 |
0.967 |
10 |
172 |
| |
|
12 |
B1u |
1040 |
1018 |
0.979 |
10 |
173 |
| |
|
13 |
B2g |
985 |
983 |
0.998 |
10 |
174 |
| |
|
14 |
B2g |
764 |
756 |
0.989 |
10 |
175 |
| |
|
15 |
B2u |
3215 |
3069 |
0.955 |
10 |
176 |
| |
|
16 |
B2u |
1447 |
1411 |
0.975 |
10 |
177 |
| |
|
17 |
B2u |
1145 |
1149 |
1.003 |
10 |
178 |
| |
|
18 |
B2u |
1096 |
1063 |
0.970 |
10 |
179 |
| |
|
19 |
B3g |
3197 |
3040 |
0.951 |
10 |
180 |
| |
|
20 |
B3g |
1604 |
1525 |
0.951 |
10 |
181 |
| |
|
21 |
B3g |
1370 |
1346 |
0.983 |
10 |
182 |
| |
|
22 |
B3g |
714 |
704 |
0.987 |
10 |
183 |
| |
|
23 |
B3u |
810 |
785 |
0.970 |
10 |
184 |
| |
|
24 |
B3u |
427 |
418 |
0.979 |
10 |
185 |
| C5H6 |
1,3-Cyclopentadiene |
1 |
A1 |
3260 |
3091 |
0.948 |
11 |
186 |
| |
|
2 |
A1 |
3233 |
3075 |
0.951 |
11 |
187 |
| |
|
3 |
A1 |
3058 |
2886 |
0.944 |
11 |
188 |
| |
|
4 |
A1 |
1599 |
1500 |
0.938 |
11 |
189 |
| |
|
5 |
A1 |
1431 |
1378 |
0.963 |
11 |
190 |
| |
|
6 |
A1 |
1410 |
1365 |
0.968 |
11 |
191 |
| |
|
7 |
A1 |
1127 |
1106 |
0.982 |
11 |
192 |
| |
|
8 |
A1 |
1019 |
994 |
0.976 |
11 |
193 |
| |
|
9 |
A1 |
936 |
915 |
0.978 |
11 |
194 |
| |
|
10 |
A1 |
805 |
802 |
0.996 |
11 |
195 |
| |
|
11 |
A2 |
1134 |
1100 |
0.970 |
11 |
196 |
| |
|
12 |
A2 |
933 |
941 |
1.008 |
11 |
197 |
| |
|
13 |
A2 |
719 |
700 |
0.973 |
11 |
198 |
| |
|
14 |
A2 |
507 |
516 |
1.018 |
11 |
199 |
| |
|
15 |
B1 |
3100 |
2900 |
0.936 |
11 |
200 |
| |
|
16 |
B1 |
946 |
925 |
0.978 |
11 |
201 |
| |
|
17 |
B1 |
931 |
891 |
0.957 |
11 |
202 |
| |
|
18 |
B1 |
681 |
664 |
0.975 |
11 |
203 |
| |
|
19 |
B1 |
341 |
350 |
1.025 |
11 |
204 |
| |
|
20 |
B2 |
3251 |
3105 |
0.955 |
11 |
205 |
| |
|
21 |
B2 |
3225 |
3043 |
0.944 |
11 |
206 |
| |
|
22 |
B2 |
1662 |
1580 |
0.951 |
11 |
207 |
| |
|
23 |
B2 |
1333 |
1292 |
0.969 |
11 |
208 |
| |
|
24 |
B2 |
1279 |
1239 |
0.969 |
11 |
209 |
| |
|
25 |
B2 |
1109 |
1090 |
0.983 |
11 |
210 |
| |
|
26 |
B2 |
982 |
959 |
0.976 |
11 |
211 |
| |
|
27 |
B2 |
809 |
805 |
0.995 |
11 |
212 |
| CH3CHCHCH3 |
2-Butene, (Z)- |
1 |
A1 |
3183 |
3033 |
0.953 |
12 |
213 |
| |
|
2 |
A1 |
3167 |
2965 |
0.936 |
12 |
214 |
| |
|
3 |
A1 |
3056 |
2878 |
0.942 |
12 |
215 |
| |
|
4 |
A1 |
1758 |
1669 |
0.950 |
12 |
216 |
| |
|
5 |
A1 |
1494 |
1448 |
0.969 |
12 |
217 |
| |
|
6 |
A1 |
1424 |
1397 |
0.981 |
12 |
218 |
| |
|
7 |
A1 |
1288 |
1261 |
0.979 |
12 |
219 |
| |
|
8 |
A1 |
1026 |
986 |
0.961 |
12 |
220 |
| |
|
9 |
A1 |
881 |
880 |
0.999 |
12 |
221 |
| |
|
10 |
A1 |
289 |
290 |
1.002 |
12 |
222 |
| |
|
11 |
A2 |
3117 |
2988 |
0.959 |
12 |
223 |
| |
|
12 |
A2 |
1480 |
1464 |
0.989 |
12 |
224 |
| |
|
13 |
A2 |
1054 |
1037 |
0.984 |
12 |
225 |
| |
|
14 |
A2 |
997 |
880 |
0.883 |
12 |
226 |
| |
|
15 |
A2 |
383 |
396 |
1.033 |
12 |
227 |
| |
|
17 |
B1 |
3117 |
2965 |
0.951 |
12 |
228 |
| |
|
18 |
B1 |
1486 |
1448 |
0.975 |
12 |
229 |
| |
|
19 |
B1 |
1068 |
986 |
0.923 |
12 |
230 |
| |
|
20 |
B1 |
699 |
673 |
0.962 |
12 |
231 |
| |
|
22 |
B2 |
3163 |
3033 |
0.959 |
12 |
232 |
| |
|
23 |
B2 |
3148 |
2965 |
0.942 |
12 |
233 |
| |
|
24 |
B2 |
3053 |
2900 |
0.950 |
12 |
234 |
| |
|
25 |
B2 |
1489 |
1448 |
0.973 |
12 |
235 |
| |
|
26 |
B2 |
1450 |
1420 |
0.979 |
12 |
236 |
| |
|
27 |
B2 |
1387 |
1397 |
1.007 |
12 |
237 |
| |
|
28 |
B2 |
1161 |
1135 |
0.978 |
12 |
238 |
| |
|
29 |
B2 |
996 |
986 |
0.990 |
12 |
239 |
| |
|
30 |
B2 |
561 |
583 |
1.039 |
12 |
240 |
| CH3CHCHCH3 |
2-Butene, (E)- |
1 |
Ag |
3156 |
3011 |
0.954 |
13 |
241 |
| |
|
2 |
Ag |
3140 |
2954 |
0.941 |
13 |
242 |
| |
|
3 |
Ag |
3048 |
2874 |
0.943 |
13 |
243 |
| |
|
4 |
Ag |
1767 |
1680 |
0.951 |
13 |
244 |
| |
|
5 |
Ag |
1489 |
1457 |
0.979 |
13 |
245 |
| |
|
6 |
Ag |
1421 |
1385 |
0.975 |
13 |
246 |
| |
|
7 |
Ag |
1326 |
1309 |
0.987 |
13 |
247 |
| |
|
8 |
Ag |
1174 |
1146 |
0.976 |
13 |
248 |
| |
|
9 |
Ag |
883 |
866 |
0.980 |
13 |
249 |
| |
|
10 |
Ag |
499 |
501 |
1.004 |
13 |
250 |
| |
|
11 |
Au |
3116 |
2960 |
0.950 |
13 |
251 |
| |
|
12 |
Au |
1479 |
1449 |
0.980 |
13 |
252 |
| |
|
13 |
Au |
1070 |
1057 |
0.987 |
13 |
253 |
| |
|
14 |
Au |
997 |
964 |
0.966 |
13 |
254 |
| |
|
15 |
Au |
244 |
224 |
0.917 |
13 |
255 |
| |
|
17 |
Bg |
3117 |
2954 |
0.948 |
13 |
256 |
| |
|
18 |
Bg |
1479 |
1457 |
0.985 |
13 |
257 |
| |
|
19 |
Bg |
1060 |
1039 |
0.980 |
13 |
258 |
| |
|
20 |
Bg |
745 |
750 |
1.007 |
13 |
259 |
| |
|
22 |
Bu |
3161 |
3021 |
0.956 |
13 |
260 |
| |
|
23 |
Bu |
3138 |
2960 |
0.943 |
13 |
261 |
| |
|
24 |
Bu |
3048 |
2899 |
0.951 |
13 |
262 |
| |
|
25 |
Bu |
1495 |
1449 |
0.969 |
13 |
263 |
| |
|
26 |
Bu |
1420 |
1393 |
0.981 |
13 |
264 |
| |
|
27 |
Bu |
1324 |
1311 |
0.990 |
13 |
265 |
| |
|
28 |
Bu |
1101 |
1072 |
0.974 |
13 |
266 |
| |
|
29 |
Bu |
985 |
987 |
1.002 |
13 |
267 |
| |
|
30 |
Bu |
280 |
261 |
0.932 |
13 |
268 |
| CH3SSCH3 |
Disulfide, dimethyl |
1 |
A |
3180 |
2990 |
0.940 |
14 |
269 |
| |
|
2 |
A |
3165 |
2983 |
0.943 |
14 |
270 |
| |
|
3 |
A |
3068 |
2913 |
0.950 |
14 |
271 |
| |
|
4 |
A |
1478 |
1426 |
0.965 |
14 |
272 |
| |
|
5 |
A |
1465 |
1419 |
0.968 |
14 |
273 |
| |
|
6 |
A |
1355 |
1311 |
0.967 |
14 |
274 |
| |
|
7 |
A |
980 |
955 |
0.975 |
14 |
275 |
| |
|
8 |
A |
973 |
949 |
0.975 |
14 |
276 |
| |
|
9 |
A |
716 |
694 |
0.970 |
14 |
277 |
| |
|
10 |
A |
505 |
509 |
1.009 |
14 |
278 |
| |
|
11 |
A |
236 |
240 |
1.019 |
14 |
279 |
| |
|
12 |
A |
157 |
134 |
0.856 |
14 |
280 |
| |
|
13 |
A |
97 |
117 |
1.208 |
14 |
281 |
| |
|
14 |
B |
3179 |
2990 |
0.940 |
14 |
282 |
| |
|
15 |
B |
3165 |
2983 |
0.943 |
14 |
283 |
| |
|
16 |
B |
3066 |
2915 |
0.951 |
14 |
284 |
| |
|
17 |
B |
1481 |
1430 |
0.966 |
14 |
285 |
| |
|
18 |
B |
1459 |
1415 |
0.970 |
14 |
286 |
| |
|
19 |
B |
1346 |
1303 |
0.968 |
14 |
287 |
| |
|
20 |
B |
979 |
955 |
0.976 |
14 |
288 |
| |
|
21 |
B |
972 |
949 |
0.977 |
14 |
289 |
| |
|
22 |
B |
713 |
691 |
0.969 |
14 |
290 |
| |
|
23 |
B |
266 |
274 |
1.031 |
14 |
291 |
| |
|
24 |
B |
166 |
134 |
0.808 |
14 |
292 |
| H2 |
Hydrogen diatomic |
1 |
Σg |
4383 |
4401 |
1.004 |
15 |
293 |
| CF2 |
Difluoromethylene |
1 |
A1 |
1247 |
1225 |
0.982 |
16 |
294 |
| |
|
1 |
A1 |
1148 |
1225 |
1.067 |
16 |
295 |
| |
|
2 |
A1 |
666 |
667 |
1.001 |
16 |
296 |
| |
|
2 |
A1 |
516 |
667 |
1.294 |
16 |
297 |
| |
|
3 |
B2 |
1168 |
1114 |
0.954 |
16 |
298 |
| |
|
3 |
B2 |
1343 |
1114 |
0.830 |
16 |
299 |
| SF6 |
Sulfur Hexafluoride |
1 |
A1g |
759 |
774 |
1.019 |
17 |
300 |
| |
|
2 |
Eg |
680 |
642 |
0.943 |
17 |
301 |
| |
|
3 |
T1u |
1018 |
948 |
0.931 |
17 |
302 |
| |
|
4 |
T1u |
591 |
616 |
1.041 |
17 |
303 |
| |
|
5 |
T2g |
492 |
525 |
1.066 |
17 |
304 |
| |
|
6 |
T2u |
337 |
347 |
1.029 |
17 |
305 |
| C3H4 |
cyclopropene |
1 |
A1 |
3326 |
3158 |
0.950 |
18 |
306 |
| |
|
2 |
A1 |
3085 |
2909 |
0.943 |
18 |
307 |
| |
|
3 |
A1 |
1710 |
1653 |
0.967 |
18 |
308 |
| |
|
4 |
A1 |
1519 |
1483 |
0.976 |
18 |
309 |
| |
|
5 |
A1 |
1183 |
1110 |
0.938 |
18 |
310 |
| |
|
6 |
A1 |
927 |
905 |
0.977 |
18 |
311 |
| |
|
7 |
A2 |
1016 |
996 |
0.980 |
18 |
312 |
| |
|
8 |
A2 |
825 |
820 |
0.994 |
18 |
313 |
| |
|
9 |
B1 |
3159 |
2995 |
0.948 |
18 |
314 |
| |
|
10 |
B1 |
1102 |
1088 |
0.987 |
18 |
315 |
| |
|
11 |
B1 |
586 |
569 |
0.971 |
18 |
316 |
| |
|
12 |
B2 |
3281 |
3124 |
0.952 |
18 |
317 |
| |
|
13 |
B2 |
1079 |
1043 |
0.967 |
18 |
318 |
| |
|
14 |
B2 |
1043 |
1011 |
0.970 |
18 |
319 |
| |
|
15 |
B2 |
799 |
769 |
0.963 |
18 |
320 |
| CS |
carbon monosulfide |
1 |
Σ |
1271 |
1285 |
1.011 |
19 |
321 |
| CH |
Methylidyne |
1 |
Σ |
2829 |
2861 |
1.011 |
20 |
322 |
| |
|
1 |
Σ |
3142 |
2861 |
0.910 |
20 |
323 |
| |
|
1 |
Σ |
2829 |
3145 |
1.112 |
20 |
324 |
| |
|
1 |
Σ |
3142 |
3145 |
1.001 |
20 |
325 |
| |
|
1 |
Σ |
2829 |
2931 |
1.036 |
20 |
326 |
| |
|
1 |
Σ |
3142 |
2931 |
0.933 |
20 |
327 |
| OH |
Hydroxyl radical |
1 |
Σ |
3722 |
3738 |
1.004 |
21 |
328 |
| SiH2Cl2 |
dichlorosilane |
1 |
A1 |
2298 |
2224 |
0.968 |
22 |
329 |
| |
|
2 |
A1 |
958 |
954 |
0.996 |
22 |
330 |
| |
|
3 |
A1 |
526 |
527 |
1.003 |
22 |
331 |
| |
|
4 |
A1 |
186 |
188 |
1.008 |
22 |
332 |
| |
|
5 |
A2 |
722 |
710 |
0.983 |
22 |
333 |
| |
|
6 |
B1 |
2314 |
2237 |
0.967 |
22 |
334 |
| |
|
7 |
B1 |
598 |
602 |
1.006 |
22 |
335 |
| |
|
8 |
B2 |
892 |
876 |
0.982 |
22 |
336 |
| |
|
9 |
B2 |
593 |
590 |
0.995 |
22 |
337 |
| HCl |
Hydrogen chloride |
1 |
Σ |
3031 |
2991 |
0.987 |
23 |
338 |
| HF |
Hydrogen fluoride |
1 |
Σ |
4162 |
4138 |
0.994 |
24 |
339 |
| NH3 |
Ammonia |
1 |
A1 |
3458 |
3337 |
0.965 |
25 |
340 |
| |
|
2 |
A1 |
1178 |
950 |
0.806 |
25 |
341 |
| |
|
3 |
E |
3584 |
3444 |
0.961 |
25 |
342 |
| |
|
4 |
E |
1694 |
1627 |
0.960 |
25 |
343 |
| H2O |
Water |
1 |
A1 |
3844 |
3657 |
0.951 |
26 |
344 |
| |
|
2 |
A1 |
1696 |
1595 |
0.941 |
26 |
345 |
| |
|
3 |
B2 |
3948 |
3756 |
0.951 |
26 |
346 |
| H2S |
Hydrogen sulfide |
1 |
A1 |
2739 |
2615 |
0.955 |
27 |
347 |
| |
|
2 |
A1 |
1217 |
1183 |
0.972 |
27 |
348 |
| |
|
3 |
B2 |
2759 |
2626 |
0.952 |
27 |
349 |
| AlH3 |
aluminum trihydride |
1 |
A1' |
1924 |
1900 |
0.987 |
28 |
350 |
| |
|
2 |
A2" |
724 |
698 |
0.964 |
28 |
351 |
| |
|
3 |
E' |
1933 |
1883 |
0.974 |
28 |
352 |
| |
|
4 |
E' |
793 |
783 |
0.987 |
28 |
353 |
| PH3 |
Phosphine |
1 |
A1 |
2424 |
2323 |
0.958 |
29 |
354 |
| |
|
2 |
A1 |
1041 |
992 |
0.953 |
29 |
355 |
| |
|
3 |
E |
2434 |
2328 |
0.956 |
29 |
356 |
| |
|
4 |
E |
1151 |
1118 |
0.971 |
29 |
357 |
| SiH4 |
Silane |
1 |
A1 |
2250 |
2187 |
0.972 |
30 |
358 |
| |
|
2 |
E |
982 |
975 |
0.993 |
30 |
359 |
| |
|
3 |
T2 |
2260 |
2191 |
0.970 |
30 |
360 |
| |
|
4 |
T2 |
931 |
914 |
0.982 |
30 |
361 |
| BH3 |
boron trihydride |
2 |
A2" |
1161 |
1148 |
0.989 |
31 |
362 |
| |
|
3 |
E' |
2701 |
2602 |
0.963 |
31 |
363 |
| |
|
4 |
E' |
1217 |
1197 |
0.984 |
31 |
364 |
| PH2 |
Phosphino radical |
1 |
A1 |
2394 |
2310 |
0.965 |
32 |
365 |
| |
|
2 |
A1 |
1138 |
1102 |
0.969 |
32 |
366 |
| SiH3 |
silyl |
1 |
A1 |
2218 |
2136 |
0.963 |
33 |
367 |
| |
|
2 |
A1 |
781 |
728 |
0.932 |
33 |
368 |
| |
|
3 |
E |
2253 |
2185 |
0.970 |
33 |
369 |
| |
|
4 |
E |
939 |
922 |
0.982 |
33 |
370 |
| BH |
Boron monohydride |
1 |
Σ |
2348 |
2367 |
1.008 |
34 |
371 |
| NH2 |
Amino radical |
1 |
A1 |
3341 |
3219 |
0.963 |
35 |
372 |
| |
|
2 |
A1 |
1571 |
1497 |
0.953 |
35 |
373 |
| |
|
3 |
B2 |
3436 |
3301 |
0.961 |
35 |
374 |
| NH |
Imidogen |
1 |
Σ |
3217 |
3283 |
1.020 |
36 |
375 |
| |
|
1 |
Σ |
3292 |
3283 |
0.997 |
36 |
376 |
| |
|
1 |
Σ |
3217 |
3314 |
1.030 |
36 |
377 |
| |
|
1 |
Σ |
3292 |
3314 |
1.007 |
36 |
378 |
| SiH |
Silylidyne |
1 |
Σ |
2030 |
2043 |
1.006 |
37 |
379 |
| SiH2 |
silicon dihydride |
1 |
A1 |
2065 |
1996 |
0.967 |
38 |
380 |
| |
|
1 |
A1 |
2195 |
1996 |
0.909 |
38 |
381 |
| |
|
2 |
A1 |
1036 |
999 |
0.964 |
38 |
382 |
| |
|
2 |
A1 |
887 |
999 |
1.126 |
38 |
383 |
| |
|
3 |
B2 |
2062 |
1993 |
0.967 |
38 |
384 |
| |
|
3 |
B2 |
2254 |
1993 |
0.884 |
38 |
385 |
| SH |
Mercapto radical |
1 |
Σ |
2706 |
2696 |
0.996 |
39 |
386 |
| PH |
phosphorus monohydride |
1 |
Σ |
2353 |
2364 |
1.005 |
40 |
387 |
| |
|
1 |
Σ |
2380 |
2364 |
0.993 |
40 |
388 |
| |
|
1 |
Σ |
2353 |
2415 |
1.026 |
40 |
389 |
| |
|
1 |
Σ |
2380 |
2415 |
1.015 |
40 |
390 |
| |
|
1 |
Σ |
2353 |
2403 |
1.021 |
40 |
391 |
| |
|
1 |
Σ |
2380 |
2403 |
1.009 |
40 |
392 |
| AlH |
aluminum monohydride |
1 |
Σ |
1670 |
1682 |
1.007 |
41 |
393 |
| BH2 |
boron dihydride |
2 |
A1 |
1033 |
954 |
0.923 |
42 |
394 |
| AlH2 |
aluminum dihydride |
1 |
A1 |
1831 |
1770 |
0.967 |
43 |
395 |
| |
|
2 |
A1 |
769 |
760 |
0.989 |
43 |
396 |
| |
|
3 |
B2 |
1868 |
1807 |
0.967 |
43 |
397 |
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.
 |
250 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
200 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
150 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
100 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
50 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
0 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
| |
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 |