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: B2PLYP/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 B2PLYP/6-31G*
 hartrees
Energy at 0K-148.590251
Energy at 298.15K-148.592393
HF Energy-148.433272
Nuclear repulsion energy60.899627
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 B2PLYP/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 3249 3084 15.72      
2 A1 2220 2108 284.66      
3 A1 1470 1396 25.16      
4 A1 1211 1149 1.05      
5 B1 573 544 2.36      
6 B1 356 337 150.67      
7 B2 3373 3202 1.38      
8 B2 1135 1077 1.46      
9 B2 425 403 0.46      

Unscaled Zero Point Vibrational Energy (zpe) 7005.6 cm-1
Scaled (by 0.9492) Zero Point Vibrational Energy (zpe) 6649.7 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 B2PLYP/6-31G*
ABC
9.21287 0.37365 0.35909

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP/6-31G*

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -1.147
N2 0.000 0.000 0.152
N3 0.000 0.000 1.303
H4 0.000 0.953 -1.651
H5 0.000 -0.953 -1.651

Atom - Atom Distances (Å)
  C1 N2 N3 H4 H5
C11.29842.44981.07791.0779
N21.29841.15142.03882.0388
N32.44981.15143.10373.1037
H41.07792.03883.10371.9056
H51.07792.03883.10371.9056

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 117.878
N2 C1 H5 117.878 H4 C1 H5 124.245
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B2PLYP/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.354      
2 N 0.145      
3 N -0.198      
4 H 0.204      
5 H 0.204      


Electric dipole moments


Electric Quadrupole moment
Quadrupole components in D Å


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.530 0.000 0.000
y 0.000 2.229 0.000
z 0.000 0.000 6.407


<r2> (average value of r2) Å2
<r2> 38.187
(<r2>)1/2 6.180