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All results from a given calculation for HNCNH (diiminomethane)

using model chemistry: MP4=FULL/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 MP4=FULL/6-311+G(3df,2p)
 hartrees
Energy at 0K-148.621407
Energy at 298.15K-148.623783
HF Energy-147.955609
Nuclear repulsion energy59.853227
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 MP4=FULL/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 3621 3621        
2 A 1234 1234        
3 A 910 910        
4 A 716 716        
5 A 530 530        
6 B 3621 3621        
7 B 2185 2185        
8 B 902 902        
9 B 536 536        

Unscaled Zero Point Vibrational Energy (zpe) 7127.2 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 7127.2 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 MP4=FULL/6-311+G(3df,2p)
ABC
12.40097 0.34323 0.34315

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP4=FULL/6-311+G(3df,2p)

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.026
N2 0.000 1.225 -0.083
N3 0.000 -1.225 -0.083
H4 0.621 1.768 0.502
H5 -0.621 -1.768 0.502

Atom - Atom Distances (Å)
  C1 N2 N3 H4 H5
C11.23001.23001.93361.9336
N21.23002.45021.01133.1127
N31.23002.45023.11271.0113
H41.93361.01133.11273.7485
H51.93363.11271.01133.7485

picture of diiminomethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 H4 118.930 C1 N3 H5 118.930
N2 C1 N3 169.811
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability