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All results from a given calculation for HNCNH (diiminomethane)

using model chemistry: MP3/cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A
Energy calculated at MP3/cc-pVDZ
 hartrees
Energy at 0K-148.368467
Energy at 298.15K-148.370900
HF Energy-147.911540
Nuclear repulsion energy59.673410
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 MP3/cc-pVDZ
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 3618 3430 22.12      
2 A 1288 1221 0.01      
3 A 999 947 3.45      
4 A 823 780 83.72      
5 A 514 487 0.05      
6 B 3618 3430 79.80      
7 B 2240 2123 561.13      
8 B 991 939 394.87      
9 B 518 491 70.73      

Unscaled Zero Point Vibrational Energy (zpe) 7304.8 cm-1
Scaled (by 0.9479) Zero Point Vibrational Energy (zpe) 6924.2 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 MP3/cc-pVDZ
ABC
11.05368 0.34282 0.34282

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP3/cc-pVDZ

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.010
N2 0.000 1.232 -0.082
N3 0.000 -1.232 -0.082
H4 0.657 1.699 0.545
H5 -0.657 -1.699 0.545

Atom - Atom Distances (Å)
  C1 N2 N3 H4 H5
C11.23521.23521.89791.8979
N21.23522.46341.02113.0678
N31.23522.46343.06781.0211
H41.89791.02113.06783.6420
H51.89793.06781.02113.6420

picture of diiminomethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 H4 114.183 C1 N3 H5 114.183
N2 C1 N3 171.381
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability