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

using model chemistry: B3LYP_cp_opt/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 B3LYP_cp_opt/6-31G*
 hartrees
Energy at 0K-266.168514
Energy at 298.15K-266.172019
Nuclear repulsion energy69.870202
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/6-31G*
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 3843 3690 47.79      
2 A 3720 3572 21.15      
3 A 3671 3525 45.63      
4 A 3122 2998 16.08      
5 A 1855 1782 296.60      
6 A 1716 1648 106.34      
7 A 1423 1366 8.52      
8 A 1307 1255 4.83      
9 A 1131 1086 255.87      
10 A 1063 1021 1.82      
11 A 695 667 162.64      
12 A 625 600 44.54      
13 A 358 344 153.04      
14 A 249 240 127.14      
15 A 126 121 8.22      
16 A 80 77 98.70      
17 A 59 57 8.25      
18 A 55 53 49.09      

Unscaled Zero Point Vibrational Energy (zpe) 12548.3 cm-1
Scaled (by 0.9603) Zero Point Vibrational Energy (zpe) 12050.2 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 B3LYP_cp_opt/6-31G*
ABC
0.68125 0.09230 0.08145

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

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 1.883 0.481 -0.038
O2 2.404 -0.338 -0.062
O3 -0.263 0.935 0.010
H4 3.247 -0.099 0.349
H5 -0.992 1.582 -0.058
C6 -0.837 -0.295 0.033
O7 -2.024 -0.489 -0.017
H8 -0.053 -1.059 0.103

Atom - Atom Distances (Å)
  H1 O2 O3 H4 H5 C6 O7 H8
H10.97042.19421.53133.07872.82974.02602.4780
O20.97042.95570.96803.90073.24274.43082.5657
O32.19422.95573.67450.97711.35702.26442.0072
H41.53130.96803.67454.57784.10095.29823.4455
H53.07873.90070.97714.57781.88532.31392.8078
C62.82973.24271.35704.10091.88531.20381.0976
O74.02604.43082.26445.29822.31391.20382.0559
H82.47802.56572.00723.44552.80781.09762.0559

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 104.360 H1 O3 H5 149.873
H1 O3 C6 103.113 O2 H1 O3 134.402
O3 C6 O7 124.215 O3 C6 H8 109.258
H5 O3 C6 106.608 O7 C6 H8 126.526
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP_cp_opt/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.000      
2 O 0.000      
3 O -0.553      
4 H 0.000      
5 H 0.408      
6 C 0.382      
7 O -0.399      
8 H 0.162      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.526 2.618 0.774 3.127
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -24.069 -0.505 2.651
y -0.505 -20.723 -0.397
z 2.651 -0.397 -23.473
Traceless
 xyz
x -1.971 -0.505 2.651
y -0.505 3.047 -0.397
z 2.651 -0.397 -1.077
Polar
3z2-r2-2.153
x2-y2-3.345
xy-0.505
xz2.651
yz-0.397


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.061 0.179 -0.033
y 0.179 3.068 0.031
z -0.033 0.031 1.315


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