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All results from a given calculation for HNCCNH (Ethenediimine)

using model chemistry: B1B95/6-311G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2H 1AG
Energy calculated at B1B95/6-311G**
 hartrees
Energy at 0K-186.780226
Energy at 298.15K 
HF Energy-186.780226
Nuclear repulsion energy89.936670
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 B1B95/6-311G**
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 3426 3289 0.00 746.47 0.31 0.48
2 Ag 2228 2139 0.00 27.35 0.39 0.56
3 Ag 1179 1132 0.00 22.02 0.75 0.85
4 Ag 947 909 0.00 36.71 0.27 0.43
5 Ag 285 273 0.00 4.09 0.42 0.59
6 Au 975 936 133.33 0.00 0.00 0.00
7 Au 256 246 0.01 0.00 0.00 0.00
8 Bg 677 650 0.00 7.39 0.75 0.86
9 Bu 3426 3290 7.67 0.00 0.00 0.00
10 Bu 1785 1714 173.49 0.00 0.00 0.00
11 Bu 1152 1106 368.43 0.00 0.00 0.00
12 Bu 288 276 7.93 0.00 0.00 0.00

Unscaled Zero Point Vibrational Energy (zpe) 8311.4 cm-1
Scaled (by 0.9601) Zero Point Vibrational Energy (zpe) 7979.7 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 B1B95/6-311G**
ABC
9.63202 0.14310 0.14101

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/6-311G**

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.212 -0.609 0.000
C2 -0.212 0.609 0.000
N3 0.212 -1.847 0.000
N4 -0.212 1.847 0.000
H5 1.160 -2.232 0.000
H6 -1.160 2.232 0.000

Atom - Atom Distances (Å)
  C1 C2 N3 N4 H5 H6
C11.28941.23842.49241.87973.1550
C21.28942.49241.23843.15501.8797
N31.23842.49243.71871.02274.3040
N42.49241.23843.71874.30401.0227
H51.87973.15501.02274.30405.0311
H63.15501.87974.30401.02275.0311

picture of Ethenediimine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N4 160.782 C1 N3 H5 112.119
C2 C1 N3 160.782 C2 N4 H6 112.119
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/6-311G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.156      
2 C 0.156      
3 N -0.369      
4 N -0.369      
5 H 0.214      
6 H 0.214      


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 -20.087 -7.411 0.000
y -7.411 -23.323 0.000
z 0.000 0.000 -22.547
Traceless
 xyz
x 2.848 -7.411 0.000
y -7.411 -2.006 0.000
z 0.000 0.000 -0.842
Polar
3z2-r2-1.684
x2-y23.236
xy-7.411
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.623 -2.011 0.000
y -2.011 10.253 0.000
z 0.000 0.000 2.350


<r2> (average value of r2) Å2
<r2> 79.776
(<r2>)1/2 8.932