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

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-266.163295
Energy at 298.15K-266.166998
HF Energy-266.163295
Nuclear repulsion energy115.835432
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 3831 3781 87.17      
2 A 3654 3607 23.49      
3 A 3641 3594 278.39      
4 A 3013 2974 21.27      
5 A 1745 1722 361.11      
6 A 1629 1608 82.72      
7 A 1377 1359 3.17      
8 A 1281 1264 9.29      
9 A 1100 1086 248.22      
10 A 1030 1017 3.57      
11 A 683 674 131.20      
12 A 623 615 41.34      
13 A 501 494 110.00      
14 A 329 325 128.65      
15 A 154 152 8.12      
16 A 56 55 15.82      
17 A 49 48 4.42      
18 A 46 45 107.96      

Unscaled Zero Point Vibrational Energy (zpe) 12370.6 cm-1
Scaled (by 0.987) Zero Point Vibrational Energy (zpe) 12209.8 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
0.94337 0.08532 0.07838

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 -1.782 0.335 -0.029
O2 -2.516 -0.301 -0.056
O3 0.173 0.854 -0.005
H4 -3.257 0.158 0.353
C5 0.742 -0.212 0.025
O6 2.077 -0.371 -0.002
H7 0.242 -1.190 0.079
H8 2.475 0.516 -0.052

Atom - Atom Distances (Å)
  H1 O2 O3 H4 C5 O6 H7 H8
H10.97142.02251.53412.58263.92282.53574.2610
O20.97142.92680.96293.26014.59402.90075.0578
O32.02252.92683.51791.20882.26422.04702.3276
H41.53410.96293.51794.02915.37193.75935.7577
C52.58263.26011.20884.02911.34501.09981.8819
O63.92284.59402.26425.37191.34502.01170.9736
H72.53572.90072.04703.75931.09982.01172.8139
H84.26105.05782.32765.75771.88190.97362.8139

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 105.389 H1 O3 C5 100.145
O2 H1 O3 143.644 O3 C5 O6 125.396
O3 C5 H7 124.211 C5 O6 H8 108.243
O6 C5 H7 110.393
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 0.310      
2 O -0.528      
3 O -0.587      
4 H 0.209      
5 C 0.649      
6 O -0.426      
7 H 0.144      
8 H 0.229      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.800 0.773 0.685 2.075
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -19.847 -0.659 -2.733
y -0.659 -25.121 0.116
z -2.733 0.116 -24.478
Traceless
 xyz
x 4.953 -0.659 -2.733
y -0.659 -2.958 0.116
z -2.733 0.116 -1.994
Polar
3z2-r2-3.989
x2-y25.274
xy-0.659
xz-2.733
yz0.116


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.189 -0.254 -0.043
y -0.254 4.807 -0.056
z -0.043 -0.056 3.602


<r2> (average value of r2) Å2
<r2> 133.037
(<r2>)1/2 11.534