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

using model chemistry: MP2_cp_opt/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 MP2_cp_opt/aug-cc-pVTZ
 hartrees
Energy at 0K-265.821097
Energy at 298.15K 
Nuclear repulsion energy69.948519
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 MP2_cp_opt/aug-cc-pVTZ
Rotational Constants (cm-1) from geometry optimized at MP2_cp_opt/aug-cc-pVTZ
ABC
0.67776 0.09506 0.08337

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2_cp_opt/aug-cc-pVTZ

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 1.909 0.513 0.002
O2 2.354 -0.342 -0.014
O3 -0.256 0.942 0.001
H4 3.288 -0.136 0.074
H5 -0.990 1.576 -0.010
C6 -0.818 -0.293 0.006
O7 -2.006 -0.494 -0.002
H8 -0.034 -1.051 0.017

Atom - Atom Distances (Å)
  H1 O2 O3 H4 H5 C6 O7 H8
H10.96392.20671.52663.08802.84374.04172.4939
O20.96392.90820.96103.85523.17254.36192.4907
O32.20672.90823.70540.97071.35662.26312.0050
H41.52660.96103.70544.60974.11035.30653.4461
H53.08803.85520.97074.60971.87712.30552.7961
C62.84373.17251.35664.11031.87711.20411.0911
O74.04174.36192.26315.30652.30551.20412.0491
H82.49392.49072.00503.44612.79611.09112.0491

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 104.954 H1 O3 H5 150.374
H1 O3 C6 103.291 O2 H1 O3 128.693
O3 C6 O7 124.094 O3 C6 H8 109.522
H5 O3 C6 106.329 O7 C6 H8 126.384
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at MP2_cp_opt/aug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.000      
2 O 0.000      
3 O -0.345      
4 H 0.000      
5 H 0.260      
6 C 0.019      
7 O -0.539      
8 H 0.606      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.318 2.425 0.179 3.360
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -24.303 -1.258 0.616
y -1.258 -21.186 -0.064
z 0.616 -0.064 -24.554
Traceless
 xyz
x -1.433 -1.258 0.616
y -1.258 3.243 -0.064
z 0.616 -0.064 -1.810
Polar
3z2-r2-3.619
x2-y2-3.117
xy-1.258
xz0.616
yz-0.064


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 0.000 0.000 0.000
y 0.000 0.000 0.000
z 0.000 0.000 0.000


<r2> (average value of r2) Å2
<r2> 0.000
(<r2>)1/2 0.000