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All results from a given calculation for HNCNH (diiminomethane)

using model chemistry: CCSD(T)=FULL/daug-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 CCSD(T)=FULL/daug-cc-pVDZ
 hartrees
Energy at 0K-148.440189
Energy at 298.15K-148.442594
HF Energy-147.923269
Nuclear repulsion energy59.249575
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 CCSD(T)=FULL/daug-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 3556 3556        
2 A 1227 1227        
3 A 970 970        
4 A 762 762        
5 A 515 515        
6 B 3556 3556        
7 B 2143 2143        
8 B 964 964        
9 B 520 520        

Unscaled Zero Point Vibrational Energy (zpe) 7106.7 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 7106.7 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 CCSD(T)=FULL/daug-cc-pVDZ
ABC
11.41290 0.33716 0.33702

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD(T)=FULL/daug-cc-pVDZ

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.024
N2 0.000 1.240 -0.086
N3 0.000 -1.240 -0.086
H4 0.643 1.742 0.529
H5 -0.643 -1.742 0.529

Atom - Atom Distances (Å)
  C1 N2 N3 H4 H5
C11.24461.24461.92451.9245
N21.24462.47961.02133.1117
N31.24462.47963.11171.0213
H41.92451.02133.11173.7141
H51.92453.11171.02133.7141

picture of diiminomethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 H4 115.927 C1 N3 H5 115.927
N2 C1 N3 169.932
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability