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All results from a given calculation for HNCNH (diiminomethane)

using model chemistry: B2PLYP=FULL/6-31G(2df,p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A
Energy calculated at B2PLYP=FULL/6-31G(2df,p)
 hartrees
Energy at 0K-148.680430
Energy at 298.15K-148.682848
HF Energy-148.497983
Nuclear repulsion energy60.095043
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 B2PLYP=FULL/6-31G(2df,p)
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 3639 3639 28.05      
2 A 1276 1276 0.01      
3 A 925 925 11.30      
4 A 739 739 93.19      
5 A 547 547 0.12      
6 B 3639 3639 128.06      
7 B 2245 2245 505.95      
8 B 917 917 442.61      
9 B 558 558 83.36      

Unscaled Zero Point Vibrational Energy (zpe) 7241.9 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 7241.9 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 B2PLYP=FULL/6-31G(2df,p)
ABC
12.49887 0.34602 0.34597

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP=FULL/6-31G(2df,p)

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.018
N2 0.000 1.220 -0.080
N3 0.000 -1.220 -0.080
H4 0.623 1.760 0.505
H5 -0.623 -1.760 0.505

Atom - Atom Distances (Å)
  C1 N2 N3 H4 H5
C11.22411.22411.92931.9293
N21.22412.44051.01003.1001
N31.22412.44053.10011.0100
H41.92931.01003.10013.7337
H51.92933.10011.01003.7337

picture of diiminomethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 H4 119.122 C1 N3 H5 119.122
N2 C1 N3 170.871
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability