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All results from a given calculation for HNCNH (diiminomethane)

using model chemistry: B97D3/TZVP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A
Energy calculated at B97D3/TZVP
 hartrees
Energy at 0K-148.749213
Energy at 298.15K-148.751556
HF Energy-148.749213
Nuclear repulsion energy59.957948
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 B97D3/TZVP
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 3537 3486 19.56      
2 A 1259 1241 0.00      
3 A 876 863 8.36      
4 A 696 686 107.63      
5 A 524 516 0.25      
6 B 3537 3486 104.24      
7 B 2196 2164 559.25      
8 B 876 864 417.64      
9 B 526 518 72.82      

Unscaled Zero Point Vibrational Energy (zpe) 7013.0 cm-1
Scaled (by 0.9856) Zero Point Vibrational Energy (zpe) 6912.0 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 B97D3/TZVP
ABC
12.67646 0.34441 0.34438

See section I.F.4 to change rotational constant units
Geometric Data calculated at B97D3/TZVP

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.026
N2 0.000 1.221 -0.082
N3 0.000 -1.221 -0.082
H4 0.616 1.783 0.495
H5 -0.616 -1.783 0.495

Atom - Atom Distances (Å)
  C1 N2 N3 H4 H5
C11.22611.22611.94371.9437
N21.22612.44271.01403.1203
N31.22612.44273.12031.0140
H41.94371.01403.12033.7722
H51.94373.12031.01403.7722

picture of diiminomethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 H4 120.093 C1 N3 H5 120.093
N2 C1 N3 169.941
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B97D3/TZVP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.216      
2 N -0.337      
3 N -0.337      
4 H 0.230      
5 H 0.230      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.000 0.000 2.152 2.152
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -16.868 4.359 0.000
y 4.359 -16.215 0.000
z 0.000 0.000 -17.437
Traceless
 xyz
x -0.042 4.359 0.000
y 4.359 0.938 0.000
z 0.000 0.000 -0.896
Polar
3z2-r2-1.791
x2-y2-0.654
xy4.359
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.315 0.272 0.000
y 0.272 6.636 0.000
z 0.000 0.000 2.297


<r2> (average value of r2) Å2
<r2> 39.105
(<r2>)1/2 6.253