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All results from a given calculation for HNCNH (diiminomethane)

using model chemistry: CCD/6-311G*

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/6-311G*
 hartrees
Energy at 0K-148.397565
Energy at 298.15K-148.400007
HF Energy-147.928582
Nuclear repulsion energy60.067131
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/6-311G*
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 3630 3467 16.66      
2 A 1286 1228 0.01      
3 A 977 933 6.10      
4 A 819 782 110.01      
5 A 532 508 0.04      
6 B 3629 3466 85.31      
7 B 2246 2145 610.18      
8 B 975 931 501.53      
9 B 533 509 86.19      

Unscaled Zero Point Vibrational Energy (zpe) 7312.9 cm-1
Scaled (by 0.9551) Zero Point Vibrational Energy (zpe) 6984.6 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 CCD/6-311G*
ABC
11.97154 0.34630 0.34621

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCD/6-311G*

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.012
N2 0.000 1.222 -0.079
N3 0.000 -1.222 -0.079
H4 0.636 1.733 0.520
H5 -0.636 -1.733 0.520

Atom - Atom Distances (Å)
  C1 N2 N3 H4 H5
C11.22551.22551.91421.9142
N21.22552.44421.01193.0811
N31.22552.44423.08111.0119
H41.91421.01193.08113.6909
H51.91423.08111.01193.6909

picture of diiminomethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 H4 117.314 C1 N3 H5 117.314
N2 C1 N3 171.452
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability