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All results from a given calculation for H2OHCOOH (Water formic acid dimer 2)

using model chemistry: B3LYP/aug-cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at B3LYP/aug-cc-pVTZ
 hartrees
Energy at 0K-266.318288
Energy at 298.15K-266.322094
Counterpoise corrected energy 
CP Energy at 298.15K 
Counterpoise optimized geometry corrected energy 
CP opt. Energy at 298.15K 
Nuclear repulsion energy116.548516
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 B3LYP/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 3877 3751 100.67      
2 A 3715 3594 49.05      
3 A 3691 3571 291.51      
4 A 3077 2977 15.31      
5 A 1787 1729 389.15      
6 A 1641 1588 104.14      
7 A 1405 1359 4.40      
8 A 1312 1269 16.35      
9 A 1140 1103 264.45      
10 A 1065 1030 2.25      
11 A 685 663 144.65      
12 A 639 618 50.05      
13 A 503 486 71.67      
14 A 355 343 155.37      
15 A 161 155 8.30      
16 A 76 73 92.43      
17 A 52 50 27.44      
18 A 42 40 16.24      

Unscaled Zero Point Vibrational Energy (zpe) 12609.3 cm-1
Scaled (by 0.9675) Zero Point Vibrational Energy (zpe) 12199.5 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 B3LYP/aug-cc-pVTZ
ABC
0.97960 0.08658 0.07960

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/aug-cc-pVTZ

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 -1.770 0.349 -0.016
O2 -2.490 -0.300 -0.036
O3 0.160 0.837 -0.003
H4 -3.281 0.177 0.224
C5 0.738 -0.218 0.017
O6 2.068 -0.356 -0.001
H7 0.248 -1.195 0.052
H8 2.465 0.529 -0.034

Atom - Atom Distances (Å)
  H1 O2 O3 H4 C5 O6 H7 H8
H10.96901.99101.53932.57233.90312.54204.2395
O20.96902.88340.96063.22954.55852.88135.0237
O31.99102.88343.51101.20382.25122.03532.3262
H41.53930.96063.51104.04445.38093.79045.7629
C52.57233.22951.20384.04441.33721.09421.8820
O63.90314.55852.25125.38091.33722.00540.9706
H72.54202.88132.03533.79041.09422.00542.8103
H84.23955.02372.32625.76291.88200.97062.8103

picture of Water formic acid dimer 2 state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
H1 O2 H4 105.830 H1 O3 C5 104.542
O2 H1 O3 152.126 O3 C5 O6 124.655
O3 C5 H7 124.610 C5 O6 H8 108.220
O6 C5 H7 110.735
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/aug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.271      
2 O -0.416      
3 O -0.491      
4 H 0.151      
5 C 0.080      
6 O -0.288      
7 H 0.513      
8 H 0.180      


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