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All results from a given calculation for HNCCNH (Ethenediimine)

using model chemistry: B3LYPultrafine/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 B3LYPultrafine/3-21G
 hartrees
Energy at 0K-185.771083
Energy at 298.15K 
HF Energy-185.771083
Nuclear repulsion energy89.223713
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 B3LYPultrafine/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 3166 3055 0.00 1046.72 0.32 0.48
2 Ag 2311 2230 0.00 2.29 0.64 0.78
3 Ag 1168 1127 0.00 43.19 0.73 0.84
4 Ag 940 907 0.00 29.48 0.30 0.46
5 Ag 462 446 0.00 4.64 0.66 0.79
6 Au 985 950 146.44 0.00 0.00 0.00
7 Au 306 295 0.08 0.00 0.00 0.00
8 Bg 869 838 0.00 3.20 0.75 0.86
9 Bu 3165 3054 36.63 0.00 0.00 0.00
10 Bu 1762 1700 101.62 0.00 0.00 0.00
11 Bu 1155 1114 473.35 0.00 0.00 0.00
12 Bu 314 303 40.26 0.00 0.00 0.00

Unscaled Zero Point Vibrational Energy (zpe) 8300.4 cm-1
Scaled (by 0.9649) Zero Point Vibrational Energy (zpe) 8009.1 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 B3LYPultrafine/3-21G
ABC
10.57179 0.13967 0.13785

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYPultrafine/3-21G

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.006 -0.638 0.000
C2 -0.006 0.638 0.000
N3 -0.006 -1.886 0.000
N4 0.006 1.886 0.000
H5 0.929 -2.351 0.000
H6 -0.929 2.351 0.000

Atom - Atom Distances (Å)
  C1 C2 N3 N4 H5 H6
C11.27641.24802.52431.94613.1323
C21.27642.52431.24803.13231.9461
N31.24802.52433.77221.04434.3369
N42.52431.24803.77224.33691.0443
H51.94613.13231.04434.33695.0565
H63.13231.94614.33691.04435.0565

picture of Ethenediimine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N4 178.932 C1 N3 H5 115.916
C2 C1 N3 178.932 C2 N4 H6 115.916
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYPultrafine/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.418      
2 C 0.418      
3 N -0.696      
4 N -0.696      
5 H 0.278      
6 H 0.278      


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 -21.573 -8.396 0.000
y -8.396 -22.870 0.000
z 0.000 0.000 -22.332
Traceless
 xyz
x 1.028 -8.396 0.000
y -8.396 -0.917 0.000
z 0.000 0.000 -0.111
Polar
3z2-r2-0.222
x2-y21.297
xy-8.396
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.315 -1.184 0.000
y -1.184 10.250 0.000
z 0.000 0.000 1.522


<r2> (average value of r2) Å2
<r2> 81.378
(<r2>)1/2 9.021