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All results from a given calculation for HNCNH (diiminomethane)

using model chemistry: B2PLYP=FULLultrafine/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A
Energy calculated at B2PLYP=FULLultrafine/3-21G
 hartrees
Energy at 0K-147.755651
Energy at 298.15K 
HF Energy-147.643128
Nuclear repulsion energy59.724013
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/3-21G
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 3576 3576 17.55      
2 A 1273 1273 0.37      
3 A 836 836 20.91      
4 A 686 686 145.15      
5 A 532 532 1.24      
6 B 3578 3578 136.83      
7 B 2274 2274 361.32      
8 B 828 828 614.83      
9 B 541 541 70.22      

Unscaled Zero Point Vibrational Energy (zpe) 7062.1 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 7062.1 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/3-21G
ABC
14.99083 0.33957 0.33936

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP=FULLultrafine/3-21G

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.028
N2 0.000 1.223 -0.075
N3 0.000 -1.223 -0.075
H4 0.580 1.875 0.443
H5 -0.580 -1.875 0.443

Atom - Atom Distances (Å)
  C1 N2 N3 H4 H5
C11.22771.22772.00622.0062
N21.22772.44661.01493.1947
N31.22772.44663.19471.0149
H42.00621.01493.19473.9256
H52.00623.19471.01493.9256

picture of diiminomethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 H4 126.653 C1 N3 H5 126.653
N2 C1 N3 170.319
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability