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All results from a given calculation for HNCNH (diiminomethane)

using model chemistry: MP2=FULL/cc-pVQZ

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/cc-pVQZ
 hartrees
Energy at 0K-148.645129
Energy at 298.15K-148.647510
HF Energy-147.968335
Nuclear repulsion energy60.253626
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/cc-pVQZ
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 3658 3501 32.19      
2 A 1275 1220 0.01      
3 A 889 851 11.66      
4 A 710 680 92.16      
5 A 540 517 0.63      
6 B 3657 3501 190.85      
7 B 2235 2139 607.13      
8 B 879 841 472.19      
9 B 545 522 101.02      

Unscaled Zero Point Vibrational Energy (zpe) 7194.9 cm-1
Scaled (by 0.9571) Zero Point Vibrational Energy (zpe) 6886.2 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/cc-pVQZ
ABC
12.73926 0.34770 0.34761

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/cc-pVQZ

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.024
N2 0.000 1.216 -0.081
N3 0.000 -1.216 -0.081
H4 0.612 1.766 0.498
H5 -0.612 -1.766 0.498

Atom - Atom Distances (Å)
  C1 N2 N3 H4 H5
C11.22101.22101.92791.9279
N21.22102.43291.00593.0989
N31.22102.43293.09891.0059
H41.92791.00593.09893.7375
H51.92793.09891.00593.7375

picture of diiminomethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 H4 119.618 C1 N3 H5 119.618
N2 C1 N3 170.108
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability