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

using model chemistry: wB97X-D/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 wB97X-D/cc-pVTZ
 hartrees
Energy at 0K-266.220489
Energy at 298.15K-266.224593
HF Energy-266.220489
Nuclear repulsion energy117.860311
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 wB97X-D/cc-pVTZ
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 3956 3782 75.24      
2 A 3805 3638 46.40      
3 A 3792 3625 189.47      
4 A 3105 2969 15.65      
5 A 1832 1752 386.29      
6 A 1665 1592 56.73      
7 A 1411 1349 5.30      
8 A 1340 1281 23.83      
9 A 1174 1122 236.46      
10 A 1095 1047 1.71      
11 A 701 670 144.56      
12 A 651 623 34.63      
13 A 543 519 273.53      
14 A 285 272 84.15      
15 A 178 170 98.11      
16 A 153 146 4.77      
17 A 97 92 11.16      
18 A 85 81 15.32      

Unscaled Zero Point Vibrational Energy (zpe) 12933.6 cm-1
Scaled (by 0.956) Zero Point Vibrational Energy (zpe) 12364.5 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 wB97X-D/cc-pVTZ
ABC
0.81571 0.09311 0.08415

See section I.F.4 to change rotational constant units
Geometric Data calculated at wB97X-D/cc-pVTZ

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 -1.826 0.449 -0.086
O2 -2.440 -0.290 -0.097
O3 0.227 0.938 0.004
H4 -2.941 -0.211 0.713
C5 0.683 -0.171 0.013
O6 1.979 -0.460 0.002
H7 0.076 -1.083 0.034
H8 2.471 0.369 -0.018

Atom - Atom Distances (Å)
  H1 O2 O3 H4 C5 O6 H7 H8
H10.96142.11171.52292.58583.91332.44544.2983
O20.96142.93780.95573.12714.42402.64184.9561
O32.11172.93783.44371.19922.24222.02672.3157
H41.52290.95573.44373.69134.97813.21395.4925
C52.58583.12711.19923.69131.32861.09521.8686
O63.91334.42402.24224.97811.32862.00240.9645
H72.44542.64182.02673.21391.09522.00242.8010
H84.29834.95612.31575.49251.86860.96452.8010

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 105.198 H1 O3 C5 98.964
O2 H1 O3 143.102 O3 C5 O6 124.924
O3 C5 H7 124.035 C5 O6 H8 108.098
O6 C5 H7 111.041
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at wB97X-D/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.242      
2 O -0.455      
3 O -0.333      
4 H 0.206      
5 C 0.276      
6 O -0.226      
7 H 0.077      
8 H 0.213      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.985 0.196 1.353 2.410
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -21.485 1.053 -4.346
y 1.053 -25.227 -0.320
z -4.346 -0.320 -22.532
Traceless
 xyz
x 2.394 1.053 -4.346
y 1.053 -3.218 -0.320
z -4.346 -0.320 0.824
Polar
3z2-r21.647
x2-y23.741
xy1.053
xz-4.346
yz-0.320


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.044 -0.142 -0.124
y -0.142 4.074 0.020
z -0.124 0.020 2.873


<r2> (average value of r2) Å2
<r2> 124.644
(<r2>)1/2 11.164