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All results from a given calculation for HNCNH (diiminomethane)

using model chemistry: CCSD=FULL/aug-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 CCSD=FULL/aug-cc-pVQZ
 hartrees
Energy at 0K-148.652901
Energy at 298.15K 
HF Energy-147.970100
Nuclear repulsion energy60.468509
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=FULL/aug-cc-pVQZ
Rotational Constants (cm-1) from geometry optimized at CCSD=FULL/aug-cc-pVQZ
ABC
12.38721 0.35062 0.35062

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

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.012
N2 0.000 1.213 -0.078
N3 0.000 -1.213 -0.078
H4 0.623 1.736 0.513
H5 -0.623 -1.736 0.513

Atom - Atom Distances (Å)
  C1 N2 N3 H4 H5
C11.21661.21661.91091.9109
N21.21662.42651.00553.0715
N31.21662.42653.07151.0055
H41.91091.00553.07153.6880
H51.91093.07151.00553.6880

picture of diiminomethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 H4 118.307 C1 N3 H5 118.307
N2 C1 N3 171.460
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability