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All results from a given calculation for HNCNH (diiminomethane)

using model chemistry: MP2/6-311G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A
Energy calculated at MP2/6-311G**
 hartrees
Energy at 0K-148.414419
Energy at 298.15K-148.416791
HF Energy-147.936046
Nuclear repulsion energy59.811399
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 MP2/6-311G**
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 3637 3456 28.32      
2 A 1254 1191 0.00      
3 A 910 865 4.67      
4 A 746 709 97.20      
5 A 518 492 0.24      
6 B 3637 3456 128.56      
7 B 2224 2113 486.12      
8 B 898 853 446.97      
9 B 523 497 96.48      

Unscaled Zero Point Vibrational Energy (zpe) 7173.5 cm-1
Scaled (by 0.9502) Zero Point Vibrational Energy (zpe) 6816.3 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 MP2/6-311G**
ABC
11.82617 0.34341 0.34335

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/6-311G**

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.025
N2 0.000 1.227 -0.084
N3 0.000 -1.227 -0.084
H4 0.635 1.740 0.516
H5 -0.635 -1.740 0.516

Atom - Atom Distances (Å)
  C1 N2 N3 H4 H5
C11.23191.23191.91661.9166
N21.23192.45421.01323.0933
N31.23192.45423.09331.0132
H41.91661.01323.09333.7050
H51.91663.09331.01323.7050

picture of diiminomethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 H4 116.890 C1 N3 H5 116.890
N2 C1 N3 169.873
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability