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All results from a given calculation for HNCNH (diiminomethane)

using model chemistry: MP3/6-311+G(3df,2p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A
Energy calculated at MP3/6-311+G(3df,2p)
 hartrees
Energy at 0K-148.511430
Energy at 298.15K-148.513876
HF Energy-147.957682
Nuclear repulsion energy60.345928
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 MP3/6-311+G(3df,2p)
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 3672 3672 27.80      
2 A 1303 1303 0.00      
3 A 952 952 8.63      
4 A 780 780 89.15      
5 A 546 546 0.04      
6 B 3669 3669 155.05      
7 B 2240 2240 782.08      
8 B 945 945 462.39      
9 B 549 549 86.52      

Unscaled Zero Point Vibrational Energy (zpe) 7327.0 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 7327.0 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 MP3/6-311+G(3df,2p)
ABC
12.15029 0.34950 0.34947

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP3/6-311+G(3df,2p)

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.013
N2 0.000 1.216 -0.080
N3 0.000 -1.216 -0.080
H4 0.628 1.731 0.519
H5 -0.628 -1.731 0.519

Atom - Atom Distances (Å)
  C1 N2 N3 H4 H5
C11.21931.21931.90941.9094
N21.21932.43171.00843.0716
N31.21932.43173.07161.0084
H41.90941.00843.07163.6823
H51.90943.07161.00843.6823

picture of diiminomethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 H4 117.669 C1 N3 H5 117.669
N2 C1 N3 171.319
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability