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All results from a given calculation for H2OHCOOH (Water formic acid dimer 1)

using model chemistry: B3LYP/6-31G*

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/6-31G*
 hartrees
Energy at 0K-266.172059
Energy at 298.15K-266.175980
Counterpoise corrected energy-266.168514
CP Energy at 298.15K-266.172019
Counterpoise optimized geometry corrected energy 
CP opt. Energy at 298.15K 
Nuclear repulsion energy116.938013
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/6-31G*
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 3834 3682 55.69      
2 A 3718 3571 19.20      
3 A 3669 3523 48.31      
4 A 3123 2999 11.61      
5 A 1856 1783 300.18      
6 A 1721 1653 70.75      
7 A 1415 1359 12.91      
8 A 1296 1245 4.73      
9 A 1128 1083 265.11      
10 A 1076 1033 1.93      
11 A 691 664 156.84      
12 A 625 600 49.88      
13 A 461 443 254.55      
14 A 233 223 113.87      
15 A 183 176 84.58      
16 A 144 138 0.26      
17 A 105 101 11.94      
18 A 86 83 8.43      

Unscaled Zero Point Vibrational Energy (zpe) 12682.4 cm-1
Scaled (by 0.9603) Zero Point Vibrational Energy (zpe) 12178.9 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/6-31G*
ABC
0.64975 0.09637 0.08460

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/6-31G*

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 1.848 0.486 -0.176
O2 2.382 -0.321 -0.094
O3 -0.249 0.951 0.010
H4 2.732 -0.275 0.808
H5 -0.989 1.589 0.001
C6 -0.799 -0.292 0.003
O7 -1.983 -0.506 0.003
H8 0.007 -1.037 -0.002

Atom - Atom Distances (Å)
  H1 O2 O3 H4 H5 C6 O7 H8
H10.97092.15611.52623.04902.76573.96232.3961
O20.97092.92390.96903.87533.18314.37052.4826
O32.15612.92393.32050.97721.35912.26512.0036
H41.52620.96903.32054.23923.62234.78962.9435
H53.04903.87530.97724.23921.89052.31922.8079
C62.76573.18311.35913.62231.89051.20321.0974
O73.96234.37052.26514.78962.31921.20322.0597
H82.39612.48262.00362.94352.80791.09742.0597

picture of Water formic acid dimer 1 state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
H1 O2 H4 103.763 H1 O3 H5 151.200
H1 O3 C6 101.344 O2 H1 O3 134.936
O3 C6 O7 124.143 O3 C6 H8 108.830
H5 O3 C6 106.890 O7 C6 H8 127.027
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.408      
2 O -0.790      
3 O -0.550      
4 H 0.388      
5 H 0.411      
6 C 0.358      
7 O -0.403      
8 H 0.179      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.696 2.294 1.402 2.777
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -29.340 -1.665 4.396
y -1.665 -20.733 -0.727
z 4.396 -0.727 -22.065
Traceless
 xyz
x -7.941 -1.665 4.396
y -1.665 4.969 -0.727
z 4.396 -0.727 2.972
Polar
3z2-r25.944
x2-y2-8.606
xy-1.665
xz4.396
yz-0.727


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.310 0.028 0.227
y 0.028 3.560 -0.028
z 0.227 -0.028 2.141


<r2> (average value of r2) Å2
<r2> 123.354
(<r2>)1/2 11.106