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All results from a given calculation for HNCNH (diiminomethane)

using model chemistry: MP3/cc-pVTZ

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/cc-pVTZ
 hartrees
Energy at 0K-148.511635
Energy at 298.15K-148.514090
HF Energy-147.957753
Nuclear repulsion energy60.335521
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/cc-pVTZ
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 3659 3457 26.10      
2 A 1301 1229 0.00      
3 A 969 916 7.35      
4 A 793 749 88.30      
5 A 544 514 0.00      
6 B 3656 3454 131.68      
7 B 2247 2123 690.62      
8 B 960 907 450.46      
9 B 544 514 85.22      

Unscaled Zero Point Vibrational Energy (zpe) 7336.7 cm-1
Scaled (by 0.9447) Zero Point Vibrational Energy (zpe) 6931.0 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/cc-pVTZ
ABC
11.91573 0.34956 0.34953

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

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.010
N2 0.000 1.217 -0.079
N3 0.000 -1.217 -0.079
H4 0.633 1.715 0.526
H5 -0.633 -1.715 0.526

Atom - Atom Distances (Å)
  C1 N2 N3 H4 H5
C11.22041.22041.89981.8998
N21.22042.43421.00773.0604
N31.22042.43423.06041.0077
H41.89981.00773.06043.6567
H51.89983.06041.00773.6567

picture of diiminomethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 H4 116.683 C1 N3 H5 116.683
N2 C1 N3 171.605
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability