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All results from a given calculation for HNCCNH (Ethenediimine)

using model chemistry: B2PLYP/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 B2PLYP/3-21G*
 hartrees
Energy at 0K-185.523259
Energy at 298.15K 
HF Energy-185.383548
Nuclear repulsion energy88.988186
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 B2PLYP/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 3204 3204 0.00 985.96 0.32 0.48
2 Ag 2286 2286 0.00 0.84 0.69 0.82
3 Ag 1174 1174 0.00 46.32 0.72 0.84
4 Ag 925 925 0.00 27.27 0.29 0.45
5 Ag 390 390 0.00 4.74 0.65 0.79
6 Au 990 990 146.83 0.00 0.00 0.00
7 Au 298 298 0.09 0.00 0.00 0.00
8 Bg 843 843 0.00 2.54 0.75 0.86
9 Bu 3204 3204 25.31 0.00 0.32 0.48
10 Bu 1730 1730 77.14 0.00 0.00 0.00
11 Bu 1162 1162 490.99 0.00 0.00 0.00
12 Bu 305 305 41.56 0.00 0.00 0.00

Unscaled Zero Point Vibrational Energy (zpe) 8255.2 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 8255.2 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 B2PLYP/3-21G*
ABC
10.67137 0.13882 0.13704

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP/3-21G*

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.007 -0.639 0.000
C2 -0.007 0.639 0.000
N3 -0.007 -1.892 0.000
N4 0.007 1.892 0.000
H5 0.923 -2.359 0.000
H6 -0.923 2.359 0.000

Atom - Atom Distances (Å)
  C1 C2 N3 N4 H5 H6
C11.27791.25342.53111.94913.1393
C21.27792.53111.25343.13931.9491
N31.25342.53113.78451.04134.3491
N42.53111.25343.78454.34911.0413
H51.94913.13931.04134.34915.0671
H63.13931.94914.34911.04135.0671

picture of Ethenediimine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N4 178.683 C1 N3 H5 115.987
C2 C1 N3 178.683 C2 N4 H6 115.987
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B2PLYP/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.400      
2 C 0.400      
3 N -0.682      
4 N -0.682      
5 H 0.281      
6 H 0.281      


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 -21.774 -8.484 0.000
y -8.484 -22.941 0.000
z 0.000 0.000 -22.477
Traceless
 xyz
x 0.935 -8.484 0.000
y -8.484 -0.816 0.000
z 0.000 0.000 -0.119
Polar
3z2-r2-0.239
x2-y21.167
xy-8.484
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.281 -1.132 0.000
y -1.132 10.176 0.000
z 0.000 0.000 1.507


<r2> (average value of r2) Å2
<r2> 81.854
(<r2>)1/2 9.047