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=FULLultrafine/cc-pVTZ

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=FULLultrafine/cc-pVTZ
 hartrees
Energy at 0K-148.694329
Energy at 298.15K 
HF Energy-148.492315
Nuclear repulsion energy61.359076
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=FULLultrafine/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 A1 3218 3075 16.14 109.98 0.11 0.21
2 A1 2201 2103 348.25 14.88 0.55 0.71
3 A1 1449 1385 29.73 3.61 0.75 0.86
4 A1 1194 1141 4.16 32.27 0.23 0.38
5 B1 580 554 4.36 0.08 0.75 0.86
6 B1 391 374 138.71 3.30 0.75 0.86
7 B2 3344 3194 3.09 48.62 0.75 0.86
8 B2 1125 1074 1.59 0.63 0.75 0.86
9 B2 431 412 0.51 0.37 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 6966.4 cm-1
Scaled (by 0.9554) Zero Point Vibrational Energy (zpe) 6655.7 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=FULLultrafine/cc-pVTZ
ABC
9.26227 0.37908 0.36418

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP=FULLultrafine/cc-pVTZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -1.141
N2 0.000 0.000 0.155
N3 0.000 0.000 1.291
H4 0.000 0.950 -1.639
H5 0.000 -0.950 -1.639

Atom - Atom Distances (Å)
  C1 N2 N3 H4 H5
C11.29602.43241.07261.0726
N21.29601.13632.02982.0298
N32.43241.13633.08013.0801
H41.07262.02983.08011.9005
H51.07262.02983.08011.9005

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 117.637
N2 C1 H5 117.637 H4 C1 H5 124.726
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B2PLYP=FULLultrafine/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.336      
2 N 0.139      
3 N -0.077      
4 H 0.137      
5 H 0.137      


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 -1.501 1.501
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -19.145 0.000 0.000
y 0.000 -15.573 0.000
z 0.000 0.000 -18.803
Traceless
 xyz
x -1.958 0.000 0.000
y 0.000 3.401 0.000
z 0.000 0.000 -1.444
Polar
3z2-r2-2.887
x2-y2-3.572
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.356 0.000 0.000
y 0.000 2.622 0.000
z 0.000 0.000 6.893


<r2> (average value of r2) Å2
<r2> 37.968
(<r2>)1/2 6.162