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

using model chemistry: CCSD(T)/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at CCSD(T)/6-31G*
 hartrees
Energy at 0K-264.773416
Energy at 298.15K-264.777807
Counterpoise corrected energy 
CP Energy at 298.15K 
Counterpoise optimized geometry corrected energy 
CP opt. Energy at 298.15K 
Nuclear repulsion energy116.640944
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 CCSD(T)/6-31G*
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
2 A' 3859 3713        
3 A' 3733 3591        
4 A' 3662 3523        
5 A' 3161 3041        
6 A' 1839 1769        
7 A' 1734 1669        
8 A' 1434 1380        
9 A' 1322 1272        
10 A' 1136 1093        
11 A' 624 601        
12 A' 286 275        
13 A' 142 137        
14 A' 105 101        
15 A" 1058 1018        
16 A" 682 657        
17 A" 298 287        
18 A" 62 60        

Unscaled Zero Point Vibrational Energy (zpe) 12568.6 cm-1
Scaled (by 0.9621) Zero Point Vibrational Energy (zpe) 12092.2 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 CCSD(T)/6-31G*
ABC
0.64949 0.09738 0.08469

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD(T)/6-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 0.151 -1.980 0.000
O2 1.120 -2.061 0.000
O3 -0.996 -0.086 0.000
H4 1.293 -3.016 0.000
H5 -1.838 0.417 0.000
C6 0.000 0.846 0.000
O7 -0.197 2.042 0.000
H8 0.976 0.345 0.000

Atom - Atom Distances (Å)
  H1 O2 O3 H4 H5 C6 O7 H8
H10.97202.21411.54163.11462.83004.03672.4662
O20.97202.89400.97063.85843.11534.30892.4097
O32.21412.89403.71770.98081.36392.27272.0177
H41.54160.97063.71774.64604.07275.27263.3754
H53.11463.85840.98084.64601.88712.30892.8142
C62.83003.11531.36394.07271.88711.21181.0970
O74.03674.30892.27275.27262.30891.21182.0630
H82.46622.40972.01773.37542.81421.09702.0630

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 105.048 H1 O3 H5 152.056
H1 O3 C6 101.913 O2 H1 O3 125.982
O3 C6 O7 123.748 O3 C6 H8 109.675
H5 O3 C6 106.031 O7 C6 H8 126.577
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at CCSD(T)/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.461      
2 O -0.899      
3 O -0.712      
4 H 0.437      
5 H 0.469      
6 C 0.536      
7 O -0.531      
8 H 0.237      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.596 -3.150 0.000 3.531
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -20.341 -0.455 0.012
y -0.455 -23.169 -0.050
z 0.012 -0.050 -23.995
Traceless
 xyz
x 3.241 -0.455 0.012
y -0.455 -1.001 -0.050
z 0.012 -0.050 -2.240
Polar
3z2-r2-4.480
x2-y22.828
xy-0.455
xz0.012
yz-0.050


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