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All results from a given calculation for HNCNH (diiminomethane)

using model chemistry: MP3/daug-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/daug-cc-pVTZ
 hartrees
Energy at 0K-148.524910
Energy at 298.15K-148.527355
HF Energy-147.961013
Nuclear repulsion energy60.307367
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/daug-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 3652 3652 25.53      
2 A 1299 1299 0.00      
3 A 963 963 8.48      
4 A 780 780 86.44      
5 A 548 548 0.05      
6 B 3649 3649 153.19      
7 B 2231 2231 774.21      
8 B 954 954 458.32      
9 B 549 549 82.12      

Unscaled Zero Point Vibrational Energy (zpe) 7312.5 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 7312.5 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/daug-cc-pVTZ
ABC
12.05638 0.34909 0.34908

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

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.013
N2 0.000 1.217 -0.080
N3 0.000 -1.217 -0.080
H4 0.630 1.726 0.520
H5 -0.630 -1.726 0.520

Atom - Atom Distances (Å)
  C1 N2 N3 H4 H5
C11.22051.22051.90671.9067
N21.22052.43401.00843.0694
N31.22052.43403.06941.0084
H41.90671.00843.06943.6760
H51.90673.06941.00843.6760

picture of diiminomethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 H4 117.301 C1 N3 H5 117.301
N2 C1 N3 171.304
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability