return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

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

using model chemistry: B97D3/6-311+G(3df,2p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at B97D3/6-311+G(3df,2p)
 hartrees
Energy at 0K-266.160126
Energy at 298.15K-266.163492
HF Energy-266.160126
Nuclear repulsion energy114.866863
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 B97D3/6-311+G(3df,2p)
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 3844 3794 90.22      
2 A 3727 3678 35.97      
3 A 3662 3614 46.92      
4 A 3009 2970 19.84      
5 A 1775 1752 336.50      
6 A 1615 1594 71.04      
7 A 1385 1367 5.01      
8 A 1252 1236 0.88      
9 A 1060 1046 260.67      
10 A 1025 1011 3.57      
11 A 656 648 128.62      
12 A 611 603 32.65      
13 A 342 337 115.49      
14 A 205 202 96.51      
15 A 111 110 15.15      
16 A 91 90 76.97      
17 A 61 60 39.43      
18 A 37 36 3.35      

Unscaled Zero Point Vibrational Energy (zpe) 12232.9 cm-1
Scaled (by 0.987) Zero Point Vibrational Energy (zpe) 12073.9 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 B97D3/6-311+G(3df,2p)
ABC
0.70840 0.08616 0.07708

See section I.F.4 to change rotational constant units
Geometric Data calculated at B97D3/6-311+G(3df,2p)

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 1.923 0.446 -0.028
O2 2.506 -0.322 -0.084
O3 -0.272 0.911 0.011
H4 3.250 -0.111 0.490
H5 -0.969 1.585 -0.067
C6 -0.889 -0.304 0.037
O7 -2.078 -0.464 -0.019
H8 -0.126 -1.093 0.116

Atom - Atom Distances (Å)
  H1 O2 O3 H4 H5 C6 O7 H8
H10.96632.24351.53023.10782.91044.10262.5667
O20.96633.04090.96353.96403.39734.58672.7505
O32.24353.04093.69860.97291.36252.26992.0119
H41.53020.96353.69864.58114.16855.36413.5368
H53.10783.96400.97294.58111.89362.33092.8136
C62.91043.39731.36254.16851.89361.20101.1002
O74.10264.58672.26995.36412.33091.20102.0546
H82.56672.75052.01193.53682.81361.10022.0546

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 105.505 H1 O3 H5 148.648
H1 O3 C6 103.257 O2 H1 O3 129.744
O3 C6 O7 125.092 O3 C6 H8 109.107
H5 O3 C6 107.862 O7 C6 H8 125.801
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B97D3/6-311+G(3df,2p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.275      
2 O -0.485      
3 O -0.443      
4 H 0.215      
5 H 0.234      
6 C 0.644      
7 O -0.594      
8 H 0.153      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.309 2.225 0.996 2.767
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -27.292 -0.912 3.569
y -0.912 -21.346 -0.402
z 3.569 -0.402 -24.139
Traceless
 xyz
x -4.550 -0.912 3.569
y -0.912 4.369 -0.402
z 3.569 -0.402 0.180
Polar
3z2-r20.361
x2-y2-5.946
xy-0.912
xz3.569
yz-0.402


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.979 0.274 0.093
y 0.274 4.927 -0.067
z 0.093 -0.067 3.607


<r2> (average value of r2) Å2
<r2> 134.477
(<r2>)1/2 11.596