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All results from a given calculation for HNCNH (diiminomethane)

using model chemistry: B3PW91/Def2TZVPP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A
Energy calculated at B3PW91/Def2TZVPP
 hartrees
Energy at 0K-148.789414
Energy at 298.15K-148.791817
HF Energy-148.789414
Nuclear repulsion energy60.333103
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 B3PW91/Def2TZVPP
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 3620 3620 26.24      
2 A 1297 1297 0.01      
3 A 913 913 12.05      
4 A 719 719 94.69      
5 A 546 546 0.39      
6 B 3618 3618 142.59      
7 B 2243 2243 654.41      
8 B 912 912 426.51      
9 B 550 550 79.35      

Unscaled Zero Point Vibrational Energy (zpe) 7208.9 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 7208.9 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 B3PW91/Def2TZVPP
ABC
12.67495 0.34887 0.34885

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/Def2TZVPP

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.016
N2 0.000 1.214 -0.079
N3 0.000 -1.214 -0.079
H4 0.618 1.762 0.503
H5 -0.618 -1.762 0.503

Atom - Atom Distances (Å)
  C1 N2 N3 H4 H5
C11.21811.21811.92921.9292
N21.21812.42871.00983.0947
N31.21812.42873.09471.0098
H41.92921.00983.09473.7337
H51.92923.09471.00983.7337

picture of diiminomethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 H4 119.693 C1 N3 H5 119.693
N2 C1 N3 171.031
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/Def2TZVPP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.143      
2 N -0.265      
3 N -0.265      
4 H 0.193      
5 H 0.193      


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 2.011 2.011
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -16.794 4.132 0.000
y 4.132 -16.128 0.000
z 0.000 0.000 -17.313
Traceless
 xyz
x -0.073 4.132 0.000
y 4.132 0.926 0.000
z 0.000 0.000 -0.852
Polar
3z2-r2-1.705
x2-y2-0.666
xy4.132
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.598 0.272 0.000
y 0.272 6.433 0.000
z 0.000 0.000 2.574


<r2> (average value of r2) Å2
<r2> 38.668
(<r2>)1/2 6.218