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XIII.F.2. (III.B.7.b.) (IV.C.7.) (XVIII.B.2.)

Bad vibrational frequency predictions

Calculated frequencies that differ from experiment by more than 400 cm-1 or have a ratio with experiment outside of 0.7 to 1.2 are listed

Calculated vibrational frequencies ("theory" in table) are calculated at CID/3-21G
Calculated values were scaled by 0.9316.

Species Name mode Symmetry Experiment Theory difference ratio
CHONH2 formamide 12 A" 289 421 132 0.686
C4H8O Furan, tetrahydro- 33 B 137 54 -83 2.560
COFCl Carbonic chloride fluoride 4 A' 501 415 -86 1.207
C2H3NO3 Oxamic acid 16 A" 984 820 -164 1.200
C2H3NO3 Oxamic acid 18 A" 745 596 -149 1.250
C2H3NO3 Oxamic acid 21 A" 162 104 -58 1.551
C5H8 1,4-Pentadiene 16 A 137 297 160 0.462
CH2FCl fluorochloromethane 6 A' 385 312 -73 1.233
COBr2 Carbonic dibromide 6 B2 512 326 -186 1.571
CH3SSCH3 Disulfide, dimethyl 11 A 240 188 -52 1.276
CH3SSCH3 Disulfide, dimethyl 23 B 274 220 -54 1.247
GeO2 Germanium dioxide 3 Πu 196 -98 -293 -2.003
ZnS Zinc sulfide 1 Σ 459 381 -78 1.204
C5H8 1,3-Pentadiene, (Z)- 22 A' 144 223 79 0.647
C5H8 1,3-Pentadiene, (Z)- 31 A" 456 343 -113 1.328
C5H8 1,3-Pentadiene, (Z)- 32 A" 171 110 -61 1.561
CCl2 dichloromethylene 2 A1 335 264 -71 1.269
CCl2 dichloromethylene 3 B2 758 549 -209 1.381
C5H10S 2H-Thiopyran, tetrahydro- 23 A' 194 161 -33 1.203
COHCl Formyl chloride 5 A' 457 364 -93 1.257
SO2F2 Sulfuryl fluoride 1 A1 1269 1023 -246 1.240
SO2F2 Sulfuryl fluoride 3 A1 544 419 -125 1.299
SO2F2 Sulfuryl fluoride 4 A1 385 291 -94 1.324
SO2F2 Sulfuryl fluoride 9 B2 553 410 -143 1.350
OH- hydroxide anion 1 Σ 3738 2511 -1228 1.489
OH+ hydoxyl cation 1 Σ 3113 2620 -494 1.189
CCl+ carbon monochloride cation 1 Σ 1175 880 -295 1.334
C2Cl2+ dichloroacetylene cation 4 Πg 318 574 257 0.553
HCl+ hydrogen chloride cation 1 Σ 2674 2158 -515 1.239
SOCl2 thionyl chloride 2 A' 492 364 -128 1.353
SOCl2 thionyl chloride 4 A' 194 117 -77 1.663
O2+ diatomic oxygen cation 1 Σg 1906 1357 -549 1.405
BrF5 bromine pentafluoride 6 B2 281 219 -62 1.281
BrF5 bromine pentafluoride 9 E 237 196 -41 1.207
HBr+ hydrogen bromide cation 1 Σ 2442 1927 -514 1.267
GeCl2 Germanium dichloride 2 A1 160 130 -30 1.230
N2O3 Dinitrogen trioxide 1 A' 1832 1494 -338 1.226
N2O3 Dinitrogen trioxide 6 A' 241 361 120 0.668
SCl2 Sulfur dichloride 2 A1 208 138 -70 1.506
SCl2 Sulfur dichloride 3 B2 535 405 -130 1.322
NaK Sodium Potassium 1 Σ 124 102 -22 1.213
CaOH Calcium monohydroxide 2 Σ 353 597 244 0.591
CaOH Calcium monohydroxide 3 Π 609 409 -200 1.489
PS+ phosphorus monosulfide cation 1 Σ 845 669 -176 1.263
S3- Sulfur trimer anion 3 B2 594 -926 -1520 -0.642
S3 Sulfur trimer 1 A1 581 444 -137 1.308
NH2- amino anion 1 A1 3122 2477 -645 1.260
BrF+ bromine fluoride cation 1 Σ 750 1166 416 0.643
PH- phosphorus monohydride anion 1 Σ 2230 1836 -394 1.215
H3O+ hydronium 2 A1 954 311 -643 3.065
CaH Calcium monohydride 1 Σ 1298 1050 -248 1.237
ClONO2 Chlorine nitrate 1 A' 1737 1433 -304 1.212
CaCl calcium monochloride 1 Σ 368 288 -80 1.278
SCN thiocyanato radical 2 Σ 762 615 -147 1.238
SiCl3 trichlorosilyl radical 3 E 582 473 -109 1.231
NCO isocyanato radical 1 Σ 1921 1500 -422 1.281
GeH2 germylene 1 A1 1856 833 -1023 2.228
ZnCH3 Zinc monomethyl 6 E 315 597 282 0.527
BrONO Bromine nitrite 1 A' 1723 1417 -306 1.216
CCl2 dichloromethylene 1 A1 730 568 -162 1.285
COHCl Formyl chloride 4 A' 739 594 -145 1.244
SO2F2 Sulfuryl fluoride 5 A2 388 286 -102 1.358
SO2F2 Sulfuryl fluoride 7 B1 539 374 -165 1.441
SO2F2 Sulfuryl fluoride 8 B2 1502 1153 -349 1.302
SOCl2 thionyl chloride 3 A' 344 245 -99 1.405
SOCl2 thionyl chloride 5 A" 455 356 -99 1.279
HN3 hydrogen azide 6 A" 607 497 -110 1.222
HI Hydrogen iodide 1 Σ 2309 1917 -392 1.204
S3 Sulfur trimer 2 A1 281 193 -88 1.453
AlCl Aluminum monochloride 1 Σ 482 388 -94 1.242
HSe Selenium monohydride 1 Σ 2400 1964 -436 1.222
ZnH2 Zinc hydride 3 Πu 633 102 -530 6.183
ClONO2 Chlorine nitrate 9 A" 124 92 -31 1.341
SCN thiocyanato radical 1 Σ 1942 2409 467 0.806
SiCl3 trichlorosilyl radical 1 A1 470 370 -100 1.271
OBrO OBrO 1 A1 799 651 -148 1.227
GeH2 germylene 2 A1 916 1669 753 0.549
COFCl Carbonic chloride fluoride 5 A' 415 345 -70 1.203
C4H6O2 2,3-Butanedione 16 Au 48 73 25 0.655
C4H6O2 2,3-Butanedione 21 Bg 240 101 -139 2.378
C2H3NO3 Oxamic acid 3 A' 2600 3422 822 0.760
C2H3NO3 Oxamic acid 15 A' 328 263 -65 1.248
C2H3NO3 Oxamic acid 17 A" 815 635 -180 1.283
HCNO fulminic acid 3 Σ 1254 948 -306 1.323
C5H8 1,4-Pentadiene 17 A 102 80 -22 1.277
CH2FCl fluorochloromethane 5 A' 760 616 -144 1.233
COBr2 Carbonic dibromide 4 B1 757 481 -276 1.575
CH3SSCH3 Disulfide, dimethyl 10 A 509 405 -104 1.256
KH Potassium hydride 1 Σ 984 810 -174 1.214
SOCl2 thionyl chloride 6 A" 284 196 -88 1.452
HN3 hydrogen azide 4 A' 1151 928 -222 1.240
SF4 Sulfur tetrafluoride 4 A1 228 132 -96 1.722
KF Potassium Fluoride 1 Σ 428 353 -75 1.211
ClF+ clorine monofluoride cation 1 Σ 870 1456 586 0.598
N2O3 Dinitrogen trioxide 9 A" 63 150 87 0.421
SCl2 Sulfur dichloride 1 A1 525 395 -130 1.330
NH2- amino anion 3 B2 3190 2512 -678 1.270
SiH- silicon monohydride anion 1 Σ 2175 1586 -589 1.372
SF2 sulfur difluoride 2 A1 355 292 -63 1.215
CaF Calcuium monofluoride 1 Σ 581 445 -136 1.306
SO+ sulfur monoxide cation 1 Σ 1360 1100 -260 1.236
ZnH2 Zinc hydride 2 Σu 1889 1446 -443 1.306
DF Hydrofluoric acid-d 1 Σ 2998 2530 -468 1.185
CHF2Cl difluorochloromethane 6 A' 413 337 -75 1.224
CBr2F2 Methane, dibromodifluoro- 3 A1 140 297 157 0.471
CH3COOCH3 methyl acetate 26 A" 136 111 -25 1.228
HCNO fulminic acid 5 Π 224 489 264 0.459
C5H8 1,4-Pentadiene 31 B 721 593 -128 1.215
C5H8 1,4-Pentadiene 33 B 331 84 -247 3.936
CH3SSCH3 Disulfide, dimethyl 13 A 117 73 -44 1.613