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All results from a given calculation for H2CSe (Selenoformaldehyde)

using model chemistry: B3PW91/TZVP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at B3PW91/TZVP
 hartrees
Energy at 0K-2440.829871
Energy at 298.15K 
HF Energy-2440.829871
Nuclear repulsion energy82.326186
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 B3PW91/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 A1 3101 2990 16.63 155.44 0.13 0.24
2 A1 1463 1410 3.22 5.31 0.61 0.76
3 A1 898 866 3.95 31.74 0.28 0.43
4 B1 971 936 62.43 0.59 0.75 0.86
5 B2 3203 3088 1.68 108.38 0.75 0.86
6 B2 936 902 8.44 2.10 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 5285.5 cm-1
Scaled (by 0.9643) Zero Point Vibrational Energy (zpe) 5096.8 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 B3PW91/TZVP
ABC
9.78290 0.41651 0.39950

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/TZVP

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -1.387
Se2 0.000 0.000 0.360
H3 0.000 0.925 -1.959
H4 0.000 -0.925 -1.959

Atom - Atom Distances (Å)
  C1 Se2 H3 H4
C11.74711.08741.0874
Se21.74712.49692.4969
H31.08742.49691.8492
H41.08742.49691.8492

picture of Selenoformaldehyde state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Se2 C1 H3 121.757 Se2 C1 H4 121.757
H3 C1 H4 116.485
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/TZVP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.327      
2 Se 0.002      
3 H 0.162      
4 H 0.162      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.000 0.000 -1.536 1.536
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -24.901 0.000 0.000
y 0.000 -26.002 0.000
z 0.000 0.000 -21.110
Traceless
 xyz
x -1.345 0.000 0.000
y 0.000 -2.996 0.000
z 0.000 0.000 4.341
Polar
3z2-r28.682
x2-y21.101
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.061 0.000 0.000
y 0.000 3.583 0.000
z 0.000 0.000 7.717


<r2> (average value of r2) Å2
<r2> 40.332
(<r2>)1/2 6.351