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All results from a given calculation for HNCNH (diiminomethane)

using model chemistry: MP4=FULL/6-31G*

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/6-31G*
 hartrees
Energy at 0K-148.385237
Energy at 298.15K-148.387589
HF Energy-147.890484
Nuclear repulsion energy59.354836
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/6-31G*
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A 3571 3434        
2 A 1233 1186        
3 A 946 910        
4 A 755 726        
5 A 504 484        
6 B 3573 3435        
7 B 2201 2116        
8 B 938 902        
9 B 508 488        

Unscaled Zero Point Vibrational Energy (zpe) 7113.4 cm-1
Scaled (by 0.9616) Zero Point Vibrational Energy (zpe) 6840.2 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/6-31G*
ABC
11.98159 0.33777 0.33775

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP4=FULL/6-31G*

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.032
N2 0.000 1.236 -0.086
N3 0.000 -1.236 -0.086
H4 0.633 1.774 0.503
H5 -0.633 -1.774 0.503

Atom - Atom Distances (Å)
  C1 N2 N3 H4 H5
C11.24121.24121.94171.9417
N21.24122.47121.01873.1314
N31.24122.47123.13141.0187
H41.94171.01873.13143.7672
H51.94173.13141.01873.7672

picture of diiminomethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 H4 118.117 C1 N3 H5 118.117
N2 C1 N3 169.102
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability