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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 QCISD(T)/cc-pVDZ
Calculated values were scaled by 0.9531.

Species Name mode Symmetry Experiment Theory difference ratio
HCN+ hydrogen cyanide cation 3 Π 760 2062 1302 0.369
CBr2F2 Methane, dibromodifluoro- 3 A1 140 321 181 0.436
COBr2 Carbonic dibromide 4 B1 757 490 -267 1.544
COBr2 Carbonic dibromide 6 B2 512 329 -183 1.556
GeH3CH3 methyl germane 4 A1 843 2909 2066 0.290
GeH3CH3 methyl germane 5 A1 602 2051 1449 0.293
GeH3CH3 methyl germane 8 E 2084 3003 919 0.694
GeH3CH3 methyl germane 9 E 1428 2047 619 0.698
GeH3CH3 methyl germane 10 E 900 1389 489 0.648
CH3 Methyl radical 2 A2" 606 383 -223 1.582
OH- hydroxide anion 1 Σ 3738 3238 -500 1.155
C2Cl2+ dichloroacetylene cation 5 Πu 233 173 -60 1.346
BF3+ boron trifluoride cation 3 E' 1662 26699 25037 0.062
BF3+ boron trifluoride cation 4 E' 411 21448 21037 0.019
AsH3+ Arsine cation 2 A1 452 666 214 0.678
Li2O dilithium oxide 3 Πu 112 87 -24 1.279
S3 Sulfur trimer 2 A1 281 233 -48 1.205
SiH- silicon monohydride anion 1 Σ 2175 1710 -465 1.272
BrF+ bromine fluoride cation 1 Σ 750 590 -160 1.271
BrO Bromine monoxide 1 Σ 726 586 -140 1.239
OBrO OBrO 1 A1 799 655 -144 1.220
GeH2 germylene 1 A1 1856 909 -947 2.042
GeH2 germylene 2 A1 916 1843 927 0.497