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All results from a given calculation for HNCCNH (Ethenediimine)

using model chemistry: PBEPBE/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 PBEPBE/6-31G**
 hartrees
Energy at 0K-186.599766
Energy at 298.15K 
HF Energy-186.599766
Nuclear repulsion energy88.642583
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 PBEPBE/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 3290 3245 0.00 804.02 0.31 0.48
2 Ag 2053 2025 0.00 21.58 0.35 0.52
3 Ag 1152 1136 0.00 34.20 0.74 0.85
4 Ag 922 909 0.00 35.18 0.27 0.43
5 Ag 347 342 0.00 3.57 0.33 0.49
6 Au 928 916 123.09 0.00 0.00 0.00
7 Au 247 243 0.02 0.00 0.00 0.00
8 Bg 692 683 0.00 13.37 0.75 0.86
9 Bu 3289 3244 3.60 0.00 0.31 0.48
10 Bu 1723 1699 118.24 0.00 0.00 0.00
11 Bu 1103 1087 384.86 0.00 0.00 0.00
12 Bu 281 277 6.56 0.00 0.00 0.00

Unscaled Zero Point Vibrational Energy (zpe) 8013.1 cm-1
Scaled (by 0.9863) Zero Point Vibrational Energy (zpe) 7903.3 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 PBEPBE/6-31G**
ABC
7.84954 0.14111 0.13862

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

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.307 -0.585 0.000
C2 -0.307 0.585 0.000
N3 0.307 -1.844 0.000
N4 -0.307 1.844 0.000
H5 1.272 -2.226 0.000
H6 -1.272 2.226 0.000

Atom - Atom Distances (Å)
  C1 C2 N3 N4 H5 H6
C11.32131.25932.50561.90313.2235
C21.32132.50561.25933.22351.9031
N31.25932.50563.73921.03704.3652
N42.50561.25933.73924.36521.0370
H51.90313.22351.03704.36525.1263
H63.22351.90314.36521.03705.1263

picture of Ethenediimine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N4 152.290 C1 N3 H5 111.577
C2 C1 N3 152.290 C2 N4 H6 111.577
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.226      
2 C 0.226      
3 N -0.495      
4 N -0.495      
5 H 0.270      
6 H 0.270      


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 -19.475 -7.104 0.000
y -7.104 -22.770 0.000
z 0.000 0.000 -22.413
Traceless
 xyz
x 3.117 -7.104 0.000
y -7.104 -1.826 0.000
z 0.000 0.000 -1.291
Polar
3z2-r2-2.581
x2-y23.295
xy-7.104
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.985 -2.554 0.000
y -2.554 10.117 0.000
z 0.000 0.000 2.064


<r2> (average value of r2) Å2
<r2> 80.774
(<r2>)1/2 8.987