return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

All results from a given calculation for CH2NN (diazomethane)

using model chemistry: B3PW91/6-31G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at B3PW91/6-31G
 hartrees
Energy at 0K-148.623250
Energy at 298.15K-148.625595
HF Energy-148.623250
Nuclear repulsion energy60.730591
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 B3PW91/6-31G
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 3235 3098 15.72      
2 A1 2161 2070 304.91      
3 A1 1473 1411 32.73      
4 A1 1225 1173 0.00      
5 B1 640 613 185.44      
6 B1 539 516 4.79      
7 B2 3358 3216 0.16      
8 B2 1151 1102 1.55      
9 B2 418 400 0.10      

Unscaled Zero Point Vibrational Energy (zpe) 7099.5 cm-1
Scaled (by 0.9577) Zero Point Vibrational Energy (zpe) 6799.2 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 B3PW91/6-31G
ABC
9.34419 0.37148 0.35727

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/6-31G

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -1.146
N2 0.000 0.000 0.148
N3 0.000 0.000 1.309
H4 0.000 0.946 -1.665
H5 0.000 -0.946 -1.665

Atom - Atom Distances (Å)
  C1 N2 N3 H4 H5
C11.29402.45471.07921.0792
N21.29401.16072.04512.0451
N32.45471.16073.12073.1207
H41.07922.04513.12071.8921
H51.07922.04513.12071.8921

picture of diazomethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 N3 180.000 N2 C1 H4 118.757
N2 C1 H5 118.757 H4 C1 H5 122.486
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/6-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.257      
2 N -0.063      
3 N -0.097      
4 H 0.208      
5 H 0.208      


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 -1.913 1.913
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -18.890 0.000 0.000
y 0.000 -15.299 0.000
z 0.000 0.000 -18.823
Traceless
 xyz
x -1.830 0.000 0.000
y 0.000 3.558 0.000
z 0.000 0.000 -1.729
Polar
3z2-r2-3.457
x2-y2-3.592
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.336 0.000 0.000
y 0.000 2.076 0.000
z 0.000 0.000 6.577


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