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All results from a given calculation for HNCNH (diiminomethane)

using model chemistry: CCD/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 CCD/daug-cc-pVDZ
 hartrees
Energy at 0K-148.404002
Energy at 298.15K-148.406448
HF Energy-147.924919
Nuclear repulsion energy59.567120
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 CCD/daug-cc-pVDZ
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A 3596 3596 19.73      
2 A 1267 1267 0.01      
3 A 984 984 5.35      
4 A 795 795 81.44      
5 A 531 531 0.00      
6 B 3595 3595 120.38      
7 B 2191 2191 706.16      
8 B 979 979 428.98      
9 B 534 534 69.89      

Unscaled Zero Point Vibrational Energy (zpe) 7235.0 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 7235.0 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 CCD/daug-cc-pVDZ
ABC
11.43725 0.34095 0.34085

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCD/daug-cc-pVDZ

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.015
N2 0.000 1.233 -0.083
N3 0.000 -1.233 -0.083
H4 0.643 1.727 0.535
H5 -0.643 -1.727 0.535

Atom - Atom Distances (Å)
  C1 N2 N3 H4 H5
C11.23721.23721.91471.9147
N21.23722.46661.01933.0915
N31.23722.46663.09151.0193
H41.91471.01933.09153.6855
H51.91473.09151.01933.6855

picture of diiminomethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 H4 115.774 C1 N3 H5 115.774
N2 C1 N3 170.944
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability