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All results from a given calculation for HNCNH (diiminomethane)

using model chemistry: B97D3/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A
Energy calculated at B97D3/3-21G
 hartrees
Energy at 0K-147.860339
Energy at 298.15K-147.862646
HF Energy-147.860339
Nuclear repulsion energy59.510060
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 B97D3/3-21G
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 3473 3414 12.31      
2 A 1254 1233 0.31      
3 A 827 812 11.73      
4 A 664 653 137.43      
5 A 528 519 0.44      
6 B 3476 3417 91.07      
7 B 2240 2202 325.38      
8 B 827 813 531.89      
9 B 540 531 63.15      

Unscaled Zero Point Vibrational Energy (zpe) 6913.7 cm-1
Scaled (by 0.983) Zero Point Vibrational Energy (zpe) 6796.2 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 B97D3/3-21G
ABC
14.14801 0.33794 0.33768

See section I.F.4 to change rotational constant units
Geometric Data calculated at B97D3/3-21G

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.029
N2 0.000 1.228 -0.077
N3 0.000 -1.228 -0.077
H4 0.597 1.864 0.455
H5 -0.597 -1.864 0.455

Atom - Atom Distances (Å)
  C1 N2 N3 H4 H5
C11.23221.23222.00282.0028
N21.23222.45511.02223.1931
N31.23222.45513.19311.0222
H42.00281.02223.19313.9138
H52.00283.19311.02223.9138

picture of diiminomethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 H4 125.090 C1 N3 H5 125.090
N2 C1 N3 170.077
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B97D3/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.739      
2 N -0.681      
3 N -0.681      
4 H 0.312      
5 H 0.312      


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 2.212 2.212
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -16.433 4.516 0.000
y 4.516 -14.560 0.000
z 0.000 0.000 -17.094
Traceless
 xyz
x -0.606 4.516 0.000
y 4.516 2.204 0.000
z 0.000 0.000 -1.598
Polar
3z2-r2-3.196
x2-y2-1.873
xy4.516
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.339 0.401 0.000
y 0.401 5.645 0.000
z 0.000 0.000 1.288


<r2> (average value of r2) Å2
<r2> 39.271
(<r2>)1/2 6.267