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All results from a given calculation for HNCNH (diiminomethane)

using model chemistry: CCSD(T)=FULL/aug-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/aug-cc-pVTZ
 hartrees
Energy at 0K-148.608690
Energy at 298.15K-148.611098
HF Energy-147.960086
Nuclear repulsion energy60.123688
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/aug-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 3613 3482        
2 A 1268 1222        
3 A 928 894        
4 A 745 718        
5 A 535 516        
6 B 3609 3478        
7 B 2207 2127        
8 B 919 885        
9 B 538 518        

Unscaled Zero Point Vibrational Energy (zpe) 7180.3 cm-1
Scaled (by 0.9637) Zero Point Vibrational Energy (zpe) 6919.6 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/aug-cc-pVTZ
ABC
12.22856 0.34668 0.34664

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

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.019
N2 0.000 1.220 -0.081
N3 0.000 -1.220 -0.081
H4 0.626 1.746 0.512
H5 -0.626 -1.746 0.512

Atom - Atom Distances (Å)
  C1 N2 N3 H4 H5
C11.22431.22431.91871.9187
N21.22432.44031.00953.0885
N31.22432.44033.08851.0095
H41.91871.00953.08853.7088
H51.91873.08851.00953.7088

picture of diiminomethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 H4 118.081 C1 N3 H5 118.081
N2 C1 N3 170.613
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability