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All results from a given calculation for H2OH2CO (water formaldehyde dimer)

using model chemistry: HF/Def2TZVPP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at HF/Def2TZVPP
 hartrees
Energy at 0K-189.988063
Energy at 298.15K-189.990693
HF Energy-189.988063
Counterpoise corrected energy 
CP Energy at 298.15K 
Counterpoise optimized geometry corrected energy 
CP opt. Energy at 298.15K 
Nuclear repulsion energy68.437276
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 HF/Def2TZVPP
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 4217 3822 137.29      
2 A 4091 3708 109.57      
3 A 3191 2893 68.47      
4 A 3109 2818 58.87      
5 A 1981 1795 153.84      
6 A 1764 1599 99.62      
7 A 1652 1497 30.30      
8 A 1377 1249 19.02      
9 A 1348 1222 2.59      
10 A 448 406 135.19      
11 A 330 299 105.51      
12 A 151 137 0.02      
13 A 151 137 32.37      
14 A 74 67 49.94      
15 A 45 41 156.46      

Unscaled Zero Point Vibrational Energy (zpe) 11964.2 cm-1
Scaled (by 0.9064) Zero Point Vibrational Energy (zpe) 10844.3 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 HF/Def2TZVPP
ABC
1.39793 0.15230 0.13733

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/Def2TZVPP

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 1.138 -0.428 -0.103
O2 1.879 0.156 -0.053
O3 -0.964 -0.662 -0.009
H4 2.543 -0.298 0.434
C5 -1.331 0.462 0.018
H6 -0.628 1.293 0.014
H7 -2.393 0.710 0.048

Atom - Atom Distances (Å)
  H1 O2 O3 H4 C5 H6 H7
H10.94442.11741.50952.62762.46873.7128
O20.94442.95880.93963.22582.75404.3090
O32.11742.95883.55351.18251.98391.9815
H41.50950.93963.55353.96973.57225.0521
C52.62763.22581.18253.96971.08901.0906
H62.46872.75401.98393.57221.08901.8592
H73.71284.30901.98155.05211.09061.8592

picture of water formaldehyde dimer state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
H1 O2 H4 106.494 H1 O3 C5 101.782
O2 H1 O3 147.669 O3 C5 H6 121.659
O3 C5 H7 121.261 H6 C5 H7 117.080
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/Def2TZVPP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.245      
2 O -0.473      
3 O -0.401      
4 H 0.216      
5 C 0.295      
6 H 0.065      
7 H 0.053      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.206 0.656 0.001 1.373
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -13.302 -6.833 0.003
y -6.833 -18.517 -0.001
z 0.003 -0.001 -18.940
Traceless
 xyz
x 5.426 -6.833 0.003
y -6.833 -2.396 -0.001
z 0.003 -0.001 -3.030
Polar
3z2-r2-6.061
x2-y25.215
xy-6.833
xz0.003
yz-0.001


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.747 -0.356 0.000
y -0.356 3.600 0.000
z 0.000 0.000 2.249


<r2> (average value of r2) Å2
<r2> 80.648
(<r2>)1/2 8.980