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All results from a given calculation for HNCCNH (Ethenediimine)

using model chemistry: BLYP/6-31G**

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/6-31G**
 hartrees
Energy at 0K-186.770904
Energy at 298.15K 
HF Energy-186.770904
Nuclear repulsion energy88.481875
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/6-31G**
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 3249 3224 0.00 843.88 0.31 0.48
2 Ag 2006 1990 0.00 22.12 0.35 0.52
3 Ag 1161 1152 0.00 37.93 0.73 0.84
4 Ag 910 903 0.00 33.58 0.26 0.42
5 Ag 351 348 0.00 3.49 0.33 0.50
6 Au 923 916 117.29 0.00 0.00 0.00
7 Au 247 245 0.01 0.00 0.00 0.00
8 Bg 695 689 0.00 15.15 0.75 0.86
9 Bu 3248 3223 7.98 0.00 0.00 0.00
10 Bu 1698 1685 112.37 0.00 0.00 0.00
11 Bu 1110 1101 392.09 0.00 0.00 0.00
12 Bu 278 276 6.04 0.00 0.00 0.00

Unscaled Zero Point Vibrational Energy (zpe) 7937.3 cm-1
Scaled (by 0.9923) Zero Point Vibrational Energy (zpe) 7876.2 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/6-31G**
ABC
7.67707 0.14087 0.13833

See section I.F.4 to change rotational constant units
Geometric Data calculated at BLYP/6-31G**

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.318 -0.581 0.000
C2 -0.318 0.581 0.000
N3 0.318 -1.843 0.000
N4 -0.318 1.843 0.000
H5 1.282 -2.229 0.000
H6 -1.282 2.229 0.000

Atom - Atom Distances (Å)
  C1 C2 N3 N4 H5 H6
C11.32561.26192.50681.90913.2343
C21.32562.50681.26193.23431.9091
N31.26192.50683.74111.03824.3757
N42.50681.26193.74114.37571.0382
H51.90913.23431.03824.37575.1433
H63.23431.90914.37571.03825.1433

picture of Ethenediimine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N4 151.316 C1 N3 H5 111.827
C2 C1 N3 151.316 C2 N4 H6 111.827
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.227      
2 C 0.227      
3 N -0.479      
4 N -0.479      
5 H 0.253      
6 H 0.253      


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 -19.523 -6.914 0.000
y -6.914 -23.001 0.000
z 0.000 0.000 -22.385
Traceless
 xyz
x 3.170 -6.914 0.000
y -6.914 -2.047 0.000
z 0.000 0.000 -1.123
Polar
3z2-r2-2.246
x2-y23.478
xy-6.914
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.067 -2.652 0.000
y -2.652 10.139 0.000
z 0.000 0.000 2.062


<r2> (average value of r2) Å2
<r2> 80.997
(<r2>)1/2 9.000