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All results from a given calculation for HNCNH (diiminomethane)

using model chemistry: MP3/Def2TZVPP

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/Def2TZVPP
 hartrees
Energy at 0K-148.517109
Energy at 298.15K-148.519559
HF Energy-147.964299
Nuclear repulsion energy60.355827
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/Def2TZVPP
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 3666 3666 27.23      
2 A 1304 1304 0.00      
3 A 965 965 7.41      
4 A 787 787 90.78      
5 A 546 546 0.01      
6 B 3663 3663 142.59      
7 B 2244 2244 726.18      
8 B 956 956 453.47      
9 B 549 549 87.27      

Unscaled Zero Point Vibrational Energy (zpe) 7339.5 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 7339.5 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/Def2TZVPP
ABC
12.02157 0.34967 0.34965

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP3/Def2TZVPP

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.011
N2 0.000 1.216 -0.079
N3 0.000 -1.216 -0.079
H4 0.631 1.720 0.523
H5 -0.631 -1.720 0.523

Atom - Atom Distances (Å)
  C1 N2 N3 H4 H5
C11.21981.21981.90271.9027
N21.21982.43291.00723.0636
N31.21982.43293.06361.0072
H41.90271.00723.06363.6650
H51.90273.06361.00723.6650

picture of diiminomethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 H4 117.063 C1 N3 H5 117.063
N2 C1 N3 171.543
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability