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

using model chemistry: B3LYP/TZVP

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/TZVP
 hartrees
Energy at 0K-266.304965
Energy at 298.15K-266.308540
HF Energy-266.304965
Counterpoise corrected energy 
CP Energy at 298.15K 
Counterpoise optimized geometry corrected energy 
CP opt. Energy at 298.15K 
Nuclear repulsion energy116.618380
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/TZVP
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 3889 3754 86.34      
2 A 3770 3639 36.70      
3 A 3721 3593 63.45      
4 A 3087 2980 10.74      
5 A 1824 1761 354.07      
6 A 1608 1552 86.52      
7 A 1416 1367 8.61      
8 A 1278 1234 2.70      
9 A 1100 1062 291.04      
10 A 1062 1025 2.90      
11 A 667 644 169.26      
12 A 629 607 38.81      
13 A 382 369 159.74      
14 A 257 248 127.51      
15 A 139 134 11.65      
16 A 89 86 70.88      
17 A 58 56 2.78      
18 A 50 48 86.30      

Unscaled Zero Point Vibrational Energy (zpe) 12512.7 cm-1
Scaled (by 0.9654) Zero Point Vibrational Energy (zpe) 12079.7 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/TZVP
ABC
0.69973 0.09317 0.08241

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/TZVP

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 1.878 0.487 -0.041
O2 2.387 -0.333 -0.067
O3 -0.243 0.919 0.011
H4 3.215 -0.142 0.385
H5 -0.939 1.594 -0.054
C6 -0.840 -0.300 0.031
O7 -2.024 -0.469 -0.015
H8 -0.073 -1.079 0.094

Atom - Atom Distances (Å)
  H1 O2 O3 H4 H5 C6 O7 H8
H10.96532.16481.53783.02612.83034.01722.5056
O20.96532.91370.96213.84353.22894.41362.5763
O32.16482.91373.63590.97151.35752.25812.0071
H41.53780.96213.63594.52284.07325.26413.4313
H53.02613.84350.97154.52281.89832.33112.8135
C62.83033.22891.35754.07321.89831.19681.0950
O74.01724.41362.25815.26412.33111.19682.0469
H82.50562.57632.00713.43132.81351.09502.0469

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 105.854 H1 O3 H5 146.985
H1 O3 C6 104.600 O2 H1 O3 133.397
O3 C6 O7 124.147 O3 C6 H8 109.378
H5 O3 C6 108.040 O7 C6 H8 126.476
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/TZVP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.279      
2 O -0.545      
3 O -0.333      
4 H 0.266      
5 H 0.288      
6 C 0.227      
7 O -0.315      
8 H 0.132      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.659 2.516 0.879 3.139
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -25.641 -0.779 3.013
y -0.779 -21.286 -0.481
z 3.013 -0.481 -24.230
Traceless
 xyz
x -2.883 -0.779 3.013
y -0.779 3.649 -0.481
z 3.013 -0.481 -0.766
Polar
3z2-r2-1.532
x2-y2-4.355
xy-0.779
xz3.013
yz-0.481


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.137 0.203 0.193
y 0.203 4.050 -0.036
z 0.193 -0.036 2.528


<r2> (average value of r2) Å2
<r2> 126.736
(<r2>)1/2 11.258