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All results from a given calculation for HNCNH (diiminomethane)

using model chemistry: CCSD(T)=FULL/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 CCSD(T)=FULL/daug-cc-pVTZ
 hartrees
Energy at 0K-148.612708
Energy at 298.15K-148.615118
HF Energy-147.960338
Nuclear repulsion energy60.127882
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 CCSD(T)=FULL/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 3617 3617        
2 A 1267 1267        
3 A 938 938        
4 A 750 750        
5 A 544 544        
6 B 3612 3612        
7 B 2202 2202        
8 B 928 928        
9 B 539 539        

Unscaled Zero Point Vibrational Energy (zpe) 7198.4 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 7198.4 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 CCSD(T)=FULL/daug-cc-pVTZ
ABC
12.24026 0.34672 0.34667

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD(T)=FULL/daug-cc-pVTZ

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.020
N2 0.000 1.220 -0.081
N3 0.000 -1.220 -0.081
H4 0.625 1.746 0.511
H5 -0.625 -1.746 0.511

Atom - Atom Distances (Å)
  C1 N2 N3 H4 H5
C11.22421.22421.91871.9187
N21.22422.44011.00923.0887
N31.22422.44013.08871.0092
H41.91871.00923.08873.7094
H51.91873.08871.00923.7094

picture of diiminomethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 H4 118.102 C1 N3 H5 118.102
N2 C1 N3 170.526
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability