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All results from a given calculation for HNCNH (diiminomethane)

using model chemistry: CCD/6-31G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A
Energy calculated at CCD/6-31G
 hartrees
Energy at 0K-148.130194
Energy at 298.15K-148.132485
HF Energy-147.811071
Nuclear repulsion energy59.224795
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 CCD/6-31G
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 3624 3477 9.09      
2 A 1265 1214 0.03      
3 A 866 831 10.45      
4 A 795 763 161.24      
5 A 493 473 1.04      
6 B 3627 3480 121.41      
7 B 2221 2131 535.80      
8 B 864 829 750.19      
9 B 458 440 60.35      

Unscaled Zero Point Vibrational Energy (zpe) 7106.9 cm-1
Scaled (by 0.9595) Zero Point Vibrational Energy (zpe) 6819.0 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 CCD/6-31G
ABC
14.32342 0.33402 0.33400

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCD/6-31G

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.048
N2 0.000 1.234 -0.083
N3 0.000 -1.234 -0.083
H4 0.584 1.881 0.438
H5 -0.584 -1.881 0.438

Atom - Atom Distances (Å)
  C1 N2 N3 H4 H5
C11.24101.24102.00782.0078
N21.24102.46811.01523.2119
N31.24102.46813.21191.0152
H42.00781.01523.21193.9392
H52.00783.21191.01523.9392

picture of diiminomethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 H4 125.414 C1 N3 H5 125.414
N2 C1 N3 167.853
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability