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

using model chemistry: B3LYP_cp_opt/6-31+G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at B3LYP_cp_opt/6-31+G**
 hartrees
Energy at 0K-266.214136
Energy at 298.15K-266.217643
Nuclear repulsion energy69.810943
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 B3LYP_cp_opt/6-31+G**
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 3924 3783 94.09      
2 A 3792 3657 25.23      
3 A 3739 3605 66.35      
4 A 3120 3008 6.94      
5 A 1821 1756 375.50      
6 A 1604 1547 139.23      
7 A 1408 1358 8.76      
8 A 1274 1228 6.78      
9 A 1116 1076 290.23      
10 A 1057 1019 3.30      
11 A 666 642 171.33      
12 A 622 600 38.67      
13 A 322 311 94.32      
14 A 277 267 172.83      
15 A 127 122 1.28      
16 A 75 72 16.31      
17 A 73 70 170.81      
18 A 52 50 26.48      

Unscaled Zero Point Vibrational Energy (zpe) 12534.7 cm-1
Scaled (by 0.9642) Zero Point Vibrational Energy (zpe) 12085.9 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 B3LYP_cp_opt/6-31+G**
ABC
0.67275 0.09399 0.08247

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP_cp_opt/6-31+G**

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 -1.938 0.530 -0.000
O2 -2.368 -0.336 -0.000
O3 0.267 0.944 0.000
H4 -3.319 -0.174 0.000
H5 0.991 1.595 -0.000
C6 0.824 -0.295 0.000
O7 2.012 -0.499 -0.000
H8 0.034 -1.056 0.000

Atom - Atom Distances (Å)
  H1 O2 O3 H4 H5 C6 O7 H8
H10.96732.24351.55033.11662.88204.08182.5302
O20.96732.92970.96433.87483.19204.38332.5073
O32.24352.92973.75630.97381.35792.26402.0131
H41.55030.96433.75634.65904.14415.34093.4664
H53.11663.87480.97384.65901.89742.32942.8184
C62.88203.19201.35794.14411.89741.20601.0967
O74.08184.38332.26405.34092.32941.20602.0554
H82.53022.50732.01313.46642.81841.09672.0554

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 106.757 H1 O3 H5 148.650
H1 O3 C6 103.562 O2 H1 O3 127.039
O3 C6 O7 123.915 O3 C6 H8 109.741
H5 O3 C6 107.788 O7 C6 H8 126.344
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP_cp_opt/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.000      
2 O 0.000      
3 O -0.438      
4 H 0.000      
5 H 0.362      
6 C 0.347      
7 O -0.419      
8 H 0.149      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -2.146 2.594 0.001 3.366
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -23.517 0.989 -0.004
y 0.989 -21.585 -0.001
z -0.004 -0.001 -25.157
Traceless
 xyz
x -0.146 0.989 -0.004
y 0.989 2.752 -0.001
z -0.004 -0.001 -2.606
Polar
3z2-r2-5.211
x2-y2-1.932
xy0.989
xz-0.004
yz-0.001


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.765 0.398 -0.031
y 0.398 3.550 0.025
z -0.031 0.025 1.975


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