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All results from a given calculation for HNCNH (diiminomethane)

using model chemistry: HF/6-311G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A
Energy calculated at HF/6-311G*
 hartrees
Energy at 0K-147.930461
Energy at 298.15K-147.933007
HF Energy-147.930461
Nuclear repulsion energy61.024345
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 HF/6-311G*
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 3834 3467 27.78      
2 A 1379 1247 0.24      
3 A 1031 933 15.70      
4 A 839 759 134.98      
5 A 587 531 0.15      
6 B 3829 3463 141.19      
7 B 2342 2118 949.16      
8 B 1024 926 540.49      
9 B 589 533 123.68      

Unscaled Zero Point Vibrational Energy (zpe) 7727.5 cm-1
Scaled (by 0.9044) Zero Point Vibrational Energy (zpe) 6988.8 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 HF/6-311G*
ABC
12.51510 0.35712 0.35693

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/6-311G*

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.006
N2 0.000 1.203 0.072
N3 0.000 -1.203 0.072
H4 -0.625 1.709 -0.519
H5 0.625 -1.709 -0.519

Atom - Atom Distances (Å)
  C1 N2 N3 H4 H5
C11.20521.20521.89381.8938
N21.20522.40680.99733.0365
N31.20522.40683.03650.9973
H41.89380.99733.03653.6393
H51.89383.03650.99733.6393

picture of diiminomethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 H4 118.295 C1 N3 H5 118.295
N2 C1 N3 173.775
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.700      
2 N -0.711      
3 N -0.711      
4 H 0.360      
5 H 0.360      


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 -2.444 2.444
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -16.629 -4.624 0.000
y -4.624 -17.478 0.000
z 0.000 0.000 -17.195
Traceless
 xyz
x 0.707 -4.624 0.000
y -4.624 -0.566 0.000
z 0.000 0.000 -0.141
Polar
3z2-r2-0.282
x2-y20.849
xy-4.624
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.900 -0.329 0.000
y -0.329 5.603 0.000
z 0.000 0.000 1.856


<r2> (average value of r2) Å2
<r2> 38.187
(<r2>)1/2 6.180