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All results from a given calculation for HNCCNH (Ethenediimine)

using model chemistry: BLYP/6-311G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2H 1AG
Energy calculated at BLYP/6-311G*
 hartrees
Energy at 0K-186.817071
Energy at 298.15K 
HF Energy-186.817071
Nuclear repulsion energy88.863284
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 BLYP/6-311G*
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 Ag 3239 3231 0.00 932.35 0.32 0.49
2 Ag 2023 2018 0.00 21.00 0.40 0.57
3 Ag 1175 1172 0.00 33.33 0.72 0.84
4 Ag 905 902 0.00 32.64 0.24 0.39
5 Ag 329 328 0.00 4.20 0.39 0.56
6 Au 939 936 129.06 0.00 0.00 0.00
7 Au 249 249 0.09 0.00 0.00 0.00
8 Bg 689 687 0.00 10.03 0.75 0.86
9 Bu 3239 3231 11.60 0.00 0.32 0.49
10 Bu 1688 1684 112.84 0.00 0.00 0.00
11 Bu 1127 1124 416.97 0.00 0.00 0.00
12 Bu 278 277 7.04 0.00 0.00 0.00

Unscaled Zero Point Vibrational Energy (zpe) 7939.3 cm-1
Scaled (by 0.9975) Zero Point Vibrational Energy (zpe) 7919.4 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 BLYP/6-311G*
ABC
8.32003 0.14132 0.13896

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

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.289 -0.590 0.000
C2 -0.289 0.590 0.000
N3 0.289 -1.845 0.000
N4 -0.289 1.845 0.000
H5 1.244 -2.246 0.000
H6 -1.244 2.246 0.000

Atom - Atom Distances (Å)
  C1 C2 N3 N4 H5 H6
C11.31331.25542.50241.91173.2232
C21.31332.50241.25543.22321.9117
N31.25542.50243.73521.03574.3686
N42.50241.25543.73524.36861.0357
H51.91173.22321.03574.36865.1344
H63.22321.91174.36861.03575.1344

picture of Ethenediimine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N4 153.913 C1 N3 H5 112.759
C2 C1 N3 153.913 C2 N4 H6 112.759
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.137      
2 C 0.137      
3 N -0.435      
4 N -0.435      
5 H 0.298      
6 H 0.298      


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 0.000 0.000
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -20.014 -7.317 0.000
y -7.317 -23.361 0.000
z 0.000 0.000 -22.845
Traceless
 xyz
x 3.089 -7.317 0.000
y -7.317 -1.931 0.000
z 0.000 0.000 -1.158
Polar
3z2-r2-2.315
x2-y23.347
xy-7.317
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.094 -2.464 0.000
y -2.464 10.452 0.000
z 0.000 0.000 2.366


<r2> (average value of r2) Å2
<r2> 80.973
(<r2>)1/2 8.998