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All results from a given calculation for HNCNH (diiminomethane)

using model chemistry: PBEPBEultrafine/aug-cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A
Energy calculated at PBEPBEultrafine/aug-cc-pVTZ
 hartrees
Energy at 0K-148.676876
Energy at 298.15K-148.679234
HF Energy-148.676876
Nuclear repulsion energy59.807782
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 PBEPBEultrafine/aug-cc-pVTZ
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 3512 3473 20.18      
2 A 1252 1238 0.02      
3 A 895 885 10.81      
4 A 691 684 83.60      
5 A 526 520 0.61      
6 B 3510 3471 116.11      
7 B 2175 2151 581.10      
8 B 893 883 400.19      
9 B 530 524 64.59      

Unscaled Zero Point Vibrational Energy (zpe) 6992.2 cm-1
Scaled (by 0.9888) Zero Point Vibrational Energy (zpe) 6913.9 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 PBEPBEultrafine/aug-cc-pVTZ
ABC
12.43144 0.34305 0.34293

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBEultrafine/aug-cc-pVTZ

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.027
N2 0.000 1.224 -0.083
N3 0.000 -1.224 -0.083
H4 0.620 1.782 0.501
H5 -0.620 -1.782 0.501

Atom - Atom Distances (Å)
  C1 N2 N3 H4 H5
C11.22911.22911.94531.9453
N21.22912.44821.01833.1246
N31.22912.44823.12461.0183
H41.94531.01833.12463.7735
H51.94533.12461.01833.7735

picture of diiminomethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 H4 119.609 C1 N3 H5 119.609
N2 C1 N3 169.658
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBEultrafine/aug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.112      
2 N -0.200      
3 N -0.200      
4 H 0.144      
5 H 0.144      


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 1.882 1.882
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -17.183 4.033 0.000
y 4.033 -16.241 0.000
z 0.000 0.000 -17.689
Traceless
 xyz
x -0.217 4.033 0.000
y 4.033 1.194 0.000
z 0.000 0.000 -0.977
Polar
3z2-r2-1.954
x2-y2-0.941
xy4.033
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.270 0.268 0.000
y 0.268 7.110 0.000
z 0.000 0.000 3.243


<r2> (average value of r2) Å2
<r2> 39.343
(<r2>)1/2 6.272