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All results from a given calculation for HNCCNH (Ethenediimine)

using model chemistry: B1B95/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2H 1AG
Energy calculated at B1B95/3-21G
 hartrees
Energy at 0K-185.689108
Energy at 298.15K 
HF Energy-185.689108
Nuclear repulsion energy89.522214
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 B1B95/3-21G
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 3236 3096 0.00 974.30 0.31 0.48
2 Ag 2347 2246 0.00 3.08 0.47 0.64
3 Ag 1164 1114 0.00 37.22 0.74 0.85
4 Ag 951 910 0.00 30.21 0.31 0.47
5 Ag 458 438 0.00 4.63 0.66 0.80
6 Au 994 951 158.86 0.00 0.00 0.00
7 Au 306 293 0.13 0.00 0.00 0.00
8 Bg 870 833 0.00 3.28 0.75 0.86
9 Bu 3236 3096 14.53 0.00 0.00 0.00
10 Bu 1789 1711 111.84 0.00 0.00 0.00
11 Bu 1147 1097 487.93 0.00 0.00 0.00
12 Bu 317 303 42.59 0.00 0.00 0.00

Unscaled Zero Point Vibrational Energy (zpe) 8407.9 cm-1
Scaled (by 0.9567) Zero Point Vibrational Energy (zpe) 8043.9 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 B1B95/3-21G
ABC
10.73099 0.14052 0.13870

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/3-21G

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.007 -0.637 0.000
C2 -0.007 0.637 0.000
N3 -0.007 -1.880 0.000
N4 0.007 1.880 0.000
H5 0.922 -2.347 0.000
H6 -0.922 2.347 0.000

Atom - Atom Distances (Å)
  C1 C2 N3 N4 H5 H6
C11.27381.24322.51691.93983.1251
C21.27382.51691.24323.12511.9398
N31.24322.51693.76001.03914.3251
N42.51691.24323.76004.32511.0391
H51.93983.12511.03914.32515.0433
H63.12511.93984.32511.03915.0433

picture of Ethenediimine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N4 178.813 C1 N3 H5 116.121
C2 C1 N3 178.813 C2 N4 H6 116.121
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.424      
2 C 0.424      
3 N -0.718      
4 N -0.718      
5 H 0.295      
6 H 0.295      


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 -21.546 -8.630 0.000
y -8.630 -22.616 0.000
z 0.000 0.000 -22.353
Traceless
 xyz
x 0.938 -8.630 0.000
y -8.630 -0.666 0.000
z 0.000 0.000 -0.272
Polar
3z2-r2-0.544
x2-y21.070
xy-8.630
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.260 -1.115 0.000
y -1.115 10.096 0.000
z 0.000 0.000 1.525


<r2> (average value of r2) Å2
<r2> 80.914
(<r2>)1/2 8.995