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

using model chemistry: HF/daug-cc-pVTZ

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/daug-cc-pVTZ
 hartrees
Energy at 0K-189.982830
Energy at 298.15K-189.985433
HF Energy-189.982830
Counterpoise corrected energy 
CP Energy at 298.15K 
Counterpoise optimized geometry corrected energy 
CP opt. Energy at 298.15K 
Nuclear repulsion energy68.167843
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/daug-cc-pVTZ
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 4203 3802 147.83      
2 A 4074 3685 129.41      
3 A 3187 2883 65.74      
4 A 3107 2810 59.07      
5 A 1978 1790 156.95      
6 A 1762 1594 96.16      
7 A 1649 1491 32.14      
8 A 1374 1242 19.40      
9 A 1346 1218 3.75      
10 A 457 413 116.95      
11 A 328 296 99.36      
12 A 149 135 29.70      
13 A 143 129 0.08      
14 A 59 54 46.33      
15 A 54 49 150.13      

Unscaled Zero Point Vibrational Energy (zpe) 11934.0 cm-1
Scaled (by 0.9046) Zero Point Vibrational Energy (zpe) 10795.5 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/daug-cc-pVTZ
ABC
1.43259 0.14879 0.13479

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/daug-cc-pVTZ

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 1.169 -0.381 -0.001
O2 1.929 0.180 -0.000
O3 -0.940 -0.649 -0.001
H4 2.682 -0.384 0.004
C5 -1.413 0.434 0.000
H6 -0.793 1.331 -0.004
H7 -2.494 0.584 0.006

Atom - Atom Distances (Å)
  H1 O2 O3 H4 C5 H6 H7
H10.94482.12621.51242.70772.60383.7880
O20.94482.98680.94013.35182.95524.4414
O32.12622.98683.63131.18201.98571.9841
H41.51240.94013.63134.17533.87435.2651
C52.70773.35181.18204.17531.09061.0912
H62.60382.95521.98573.87431.09061.8576
H73.78804.44141.98415.26511.09121.8576

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 106.707 H1 O3 C5 106.335
O2 H1 O3 150.811 O3 C5 H6 121.752
O3 C5 H7 121.523 H6 C5 H7 116.725
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/daug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.397      
2 O -0.660      
3 O -0.945      
4 H 0.246      
5 C -0.994      
6 H 1.032      
7 H 0.924      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.448 0.665 0.009 1.593
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -13.358 -6.810 0.021
y -6.810 -18.646 -0.006
z 0.021 -0.006 -19.141
Traceless
 xyz
x 5.536 -6.810 0.021
y -6.810 -2.397 -0.006
z 0.021 -0.006 -3.139
Polar
3z2-r2-6.278
x2-y25.288
xy-6.810
xz0.021
yz-0.006


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.101 -0.326 -0.003
y -0.326 3.919 -0.001
z -0.003 -0.001 2.847


<r2> (average value of r2) Å2
<r2> 82.044
(<r2>)1/2 9.058