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All results from a given calculation for HNCNH (diiminomethane)

using model chemistry: B3PW91/daug-cc-pVDZ

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/daug-cc-pVDZ
 hartrees
Energy at 0K-148.750490
Energy at 298.15K-148.752900
HF Energy-148.750490
Nuclear repulsion energy59.925048
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/daug-cc-pVDZ
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 3599 3599 22.65      
2 A 1286 1286 0.00      
3 A 934 934 10.55      
4 A 725 725 86.38      
5 A 537 537 0.23      
6 B 3597 3597 133.80      
7 B 2228 2228 662.49      
8 B 934 934 405.83      
9 B 539 539 69.12      

Unscaled Zero Point Vibrational Energy (zpe) 7189.4 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 7189.4 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/daug-cc-pVDZ
ABC
12.12199 0.34464 0.34453

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/daug-cc-pVDZ

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.020
N2 0.000 1.223 -0.082
N3 0.000 -1.223 -0.082
H4 0.627 1.755 0.514
H5 -0.627 -1.755 0.514

Atom - Atom Distances (Å)
  C1 N2 N3 H4 H5
C11.22761.22761.92801.9280
N21.22762.44671.01563.1016
N31.22762.44673.10161.0156
H41.92801.01563.10163.7274
H51.92803.10161.01563.7274

picture of diiminomethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 H4 118.211 C1 N3 H5 118.211
N2 C1 N3 170.403
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/daug-cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.163      
2 N -0.045      
3 N -0.045      
4 H -0.036      
5 H -0.036      


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 1.971 1.971
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -16.999 4.108 0.000
y 4.108 -16.535 0.000
z 0.000 0.000 -17.506
Traceless
 xyz
x 0.022 4.108 0.000
y 4.108 0.717 0.000
z 0.000 0.000 -0.739
Polar
3z2-r2-1.478
x2-y2-0.464
xy4.108
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.170 0.260 0.000
y 0.260 6.868 0.000
z 0.000 0.000 3.146


<r2> (average value of r2) Å2
<r2> 39.151
(<r2>)1/2 6.257