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

using model chemistry: PBEPBEultrafine/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 PBEPBEultrafine/6-31+G**
 hartrees
Energy at 0K-265.929261
Energy at 298.15K-265.932682
Counterpoise corrected energy-265.928558
CP Energy at 298.15K-265.931927
Counterpoise optimized geometry corrected energy 
CP opt. Energy at 298.15K 
Nuclear repulsion energy116.055681
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 PBEPBEultrafine/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 3824 3780 81.86      
2 A 3684 3642 29.54      
3 A 3614 3573 47.37      
4 A 3032 2998 6.92      
5 A 1768 1748 332.68      
6 A 1570 1552 125.14      
7 A 1357 1341 8.75      
8 A 1228 1214 5.03      
9 A 1072 1059 258.75      
10 A 1010 998 6.66      
11 A 665 657 147.07      
12 A 597 590 33.29      
13 A 320 316 78.26      
14 A 276 273 163.32      
15 A 132 131 1.51      
16 A 75 74 17.37      
17 A 63 63 58.26      
18 A 33 33 132.63      

Unscaled Zero Point Vibrational Energy (zpe) 12159.2 cm-1
Scaled (by 0.9886) Zero Point Vibrational Energy (zpe) 12020.6 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 PBEPBEultrafine/6-31+G**
ABC
0.66419 0.09528 0.08333

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

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 1.918 0.535 -0.000
O2 2.343 -0.344 -0.003
O3 -0.248 0.951 0.000
H4 3.301 -0.178 0.015
H5 -0.988 1.599 -0.003
C6 -0.814 -0.295 0.001
O7 -2.012 -0.498 -0.001
H8 -0.013 -1.059 0.004

Atom - Atom Distances (Å)
  H1 O2 O3 H4 H5 C6 O7 H8
H10.97572.20621.55523.09492.85534.06412.5039
O20.97572.89680.97203.85603.15744.35812.4624
O32.20622.89683.72410.98321.36832.28312.0233
H41.55520.97203.72414.64204.11625.32263.4289
H53.09493.85600.98324.64201.90172.33402.8304
C62.85533.15741.36834.11621.90171.21561.1064
O74.06414.35812.28315.32262.33401.21562.0760
H82.50392.46242.02333.42892.83041.10642.0760

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 105.975 H1 O3 H5 149.668
H1 O3 C6 103.537 O2 H1 O3 126.688
O3 C6 O7 124.053 O3 C6 H8 109.231
H5 O3 C6 106.795 O7 C6 H8 126.716
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBEultrafine/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.367      
2 O -0.731      
3 O -0.429      
4 H 0.372      
5 H 0.374      
6 C 0.252      
7 O -0.395      
8 H 0.189      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.042 2.579 0.039 3.289
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -23.355 -0.954 0.135
y -0.954 -21.718 -0.019
z 0.135 -0.019 -25.389
Traceless
 xyz
x 0.198 -0.954 0.135
y -0.954 2.654 -0.019
z 0.135 -0.019 -2.852
Polar
3z2-r2-5.704
x2-y2-1.637
xy-0.954
xz0.135
yz-0.019


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.673 0.290 0.004
y 0.290 4.554 -0.003
z 0.004 -0.003 3.069


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