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All results from a given calculation for HNCNH (diiminomethane)

using model chemistry: MP2=FULL/6-311+G(3df,2p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A
Energy calculated at MP2=FULL/6-311+G(3df,2p)
 hartrees
Energy at 0K-148.578266
Energy at 298.15K-148.580644
HF Energy-147.956655
Nuclear repulsion energy60.126333
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 MP2=FULL/6-311+G(3df,2p)
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 3661 3452 32.71      
2 A 1272 1199 0.01      
3 A 881 831 11.31      
4 A 706 666 93.54      
5 A 542 511 0.86      
6 B 3661 3451 198.07      
7 B 2233 2105 656.88      
8 B 873 823 476.96      
9 B 549 517 102.89      

Unscaled Zero Point Vibrational Energy (zpe) 7189.0 cm-1
Scaled (by 0.9427) Zero Point Vibrational Energy (zpe) 6777.0 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 MP2=FULL/6-311+G(3df,2p)
ABC
12.78924 0.34618 0.34609

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/6-311+G(3df,2p)

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.024
N2 0.000 1.219 -0.081
N3 0.000 -1.219 -0.081
H4 0.612 1.776 0.496
H5 -0.612 -1.776 0.496

Atom - Atom Distances (Å)
  C1 N2 N3 H4 H5
C11.22321.22321.93631.9363
N21.22322.43721.00883.1101
N31.22322.43723.11011.0088
H41.93631.00883.11013.7561
H51.93633.11011.00883.7561

picture of diiminomethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 H4 120.038 C1 N3 H5 120.038
N2 C1 N3 170.077
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability