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All results from a given calculation for HCOOH (Formic acid)

using model chemistry: BLYP/aug-cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
1 2 no CS 1A'

Conformer 1 (CS)

Jump to S1C2
Energy calculated at BLYP/aug-cc-pVTZ
 hartrees
Energy at 0K-189.814184
Energy at 298.15K-189.816854
HF Energy-189.814184
Nuclear repulsion energy69.420711
The energy at 298.15K was derived from the energy at 0K and an integrated heat capacity that used the calculated vibrational frequencies.
Vibrational Frequencies calculated at BLYP/aug-cc-pVTZ
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A' 3560 3548 40.08 89.98 0.17 0.29
2 A' 2960 2950 43.70 140.70 0.26 0.41
3 A' 1729 1723 334.03 15.07 0.10 0.19
4 A' 1358 1353 1.39 5.29 0.69 0.81
5 A' 1250 1245 2.76 2.25 0.27 0.42
6 A' 1051 1047 249.40 2.75 0.39 0.56
7 A' 601 599 33.58 4.03 0.31 0.48
8 A" 1001 998 4.18 1.29 0.75 0.86
9 A" 664 662 123.86 0.63 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 7086.5 cm-1
Scaled (by 0.9966) Zero Point Vibrational Energy (zpe) 7062.4 cm-1
See section III.C.1 List or set vibrational scaling factors to change the scale factors used here.
See section III.C.2 Calculate a vibrational scaling factor for a given set of molecules to determine the least squares best scaling factor.
Rotational Constants (cm-1) from geometry optimized at BLYP/aug-cc-pVTZ
ABC
2.56077 0.39170 0.33973

See section I.F.4 to change rotational constant units
Geometric Data calculated at BLYP/aug-cc-pVTZ

Point Group is Cs

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