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

using model chemistry: B3LYP/TZVP

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/TZVP
 hartrees
Energy at 0K-191.017907
Energy at 298.15K-191.020727
HF Energy-191.017907
Counterpoise corrected energy 
CP Energy at 298.15K 
Counterpoise optimized geometry corrected energy 
CP opt. Energy at 298.15K 
Nuclear repulsion energy68.608924
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/TZVP
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 3876 3742 82.18      
2 A 3697 3569 201.34      
3 A 3002 2898 73.84      
4 A 2921 2820 63.27      
5 A 1801 1739 103.43      
6 A 1625 1569 80.20      
7 A 1538 1485 20.65      
8 A 1279 1235 7.50      
9 A 1216 1174 4.36      
10 A 514 497 148.88      
11 A 359 347 126.25      
12 A 189 182 29.47      
13 A 176 170 1.40      
14 A 81 78 47.10      
15 A 51 49 158.98      

Unscaled Zero Point Vibrational Energy (zpe) 11162.2 cm-1
Scaled (by 0.9654) Zero Point Vibrational Energy (zpe) 10776.0 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/TZVP
ABC
1.33948 0.16290 0.14547

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/TZVP

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 1.095 -0.445 -0.068
O2 1.852 0.157 -0.070
O3 -0.928 -0.672 -0.009
H4 2.500 -0.244 0.515
C5 -1.326 0.466 0.020
H6 -0.629 1.319 0.045
H7 -2.406 0.696 0.023

Atom - Atom Distances (Å)
  H1 O2 O3 H4 C5 H6 H7
H10.96752.03611.53482.58802.46913.6829
O20.96752.90150.96013.19442.74214.2928
O32.03612.90153.49401.20522.01382.0137
H41.53480.96013.49403.92243.52855.0188
C52.58803.19441.20523.92241.10241.1039
H62.46912.74212.01383.52851.10241.8831
H73.68294.29282.01375.01881.10391.8831

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 105.531 H1 O3 C5 102.942
O2 H1 O3 147.871 O3 C5 H6 121.478
O3 C5 H7 121.334 H6 C5 H7 117.187
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/TZVP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.271      
2 O -0.555      
3 O -0.306      
4 H 0.262      
5 C 0.117      
6 H 0.114      
7 H 0.097      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.341 0.399 0.615 1.529
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -14.547 -6.304 1.618
y -6.304 -19.043 -0.226
z 1.618 -0.226 -19.031
Traceless
 xyz
x 4.489 -6.304 1.618
y -6.304 -2.254 -0.226
z 1.618 -0.226 -2.236
Polar
3z2-r2-4.471
x2-y24.495
xy-6.304
xz1.618
yz-0.226


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.103 -0.466 0.089
y -0.466 3.705 -0.013
z 0.089 -0.013 2.043


<r2> (average value of r2) Å2
<r2> 77.286
(<r2>)1/2 8.791