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All results from a given calculation for HNCNH (diiminomethane)

using model chemistry: TPSSh/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 TPSSh/6-311G**
 hartrees
Energy at 0K-148.828603
Energy at 298.15K-148.831006
HF Energy-148.828603
Nuclear repulsion energy60.033654
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 TPSSh/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 3568 3568 23.13      
2 A 1273 1273 0.03      
3 A 934 934 7.04      
4 A 741 741 98.40      
5 A 532 532 0.12      
6 B 3568 3568 93.40      
7 B 2224 2224 546.06      
8 B 929 929 423.28      
9 B 534 534 73.47      

Unscaled Zero Point Vibrational Energy (zpe) 7151.8 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 7151.8 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 TPSSh/6-311G**
ABC
12.20041 0.34588 0.34586

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

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.023
N2 0.000 1.221 -0.082
N3 0.000 -1.221 -0.082
H4 0.627 1.756 0.508
H5 -0.627 -1.756 0.508

Atom - Atom Distances (Å)
  C1 N2 N3 H4 H5
C11.22521.22521.92681.9268
N21.22522.44131.01443.0989
N31.22522.44133.09891.0144
H41.92681.01443.09893.7295
H51.92683.09891.01443.7295

picture of diiminomethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 H4 118.412 C1 N3 H5 118.412
N2 C1 N3 170.129
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at TPSSh/6-311G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.456      
2 N -0.457      
3 N -0.457      
4 H 0.228      
5 H 0.228      


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 2.128 2.128
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.063 0.359 0.000
y 0.359 6.050 0.000
z 0.000 0.000 2.041


<r2> (average value of r2) Å2
<r2> 38.803
(<r2>)1/2 6.229