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All results from a given calculation for HNCNH (diiminomethane)

using model chemistry: MP4=FULL/aug-cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A
Energy calculated at MP4=FULL/aug-cc-pVTZ
 hartrees
Energy at 0K-148.615483
Energy at 298.15K-148.617859
HF Energy-147.959196
Nuclear repulsion energy59.934113
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 MP4=FULL/aug-cc-pVTZ
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 3610 3499        
2 A 1240 1202        
3 A 909 881        
4 A 715 693        
5 A 529 513        
6 B 3607 3496        
7 B 2189 2122        
8 B 898 870        
9 B 534 517        

Unscaled Zero Point Vibrational Energy (zpe) 7115.2 cm-1
Scaled (by 0.9693) Zero Point Vibrational Energy (zpe) 6896.8 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 MP4=FULL/aug-cc-pVTZ
ABC
12.37196 0.34422 0.34412

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP4=FULL/aug-cc-pVTZ

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.026
N2 0.000 1.224 -0.083
N3 0.000 -1.224 -0.083
H4 0.621 1.763 0.504
H5 -0.621 -1.763 0.504

Atom - Atom Distances (Å)
  C1 N2 N3 H4 H5
C11.22851.22851.92881.9288
N21.22852.44731.00993.1059
N31.22852.44733.10591.0099
H41.92881.00993.10593.7372
H51.92883.10591.00993.7372

picture of diiminomethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 H4 118.693 C1 N3 H5 118.693
N2 C1 N3 169.853
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability