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All results from a given calculation for HNCCNH (Ethenediimine)

using model chemistry: B2PLYP/6-31G(2df,p)

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/6-31G(2df,p)
 hartrees
Energy at 0K-186.666051
Energy at 298.15K 
HF Energy-186.441793
Nuclear repulsion energy89.464182
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/6-31G(2df,p)
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 3422 3268 0.00 664.92 0.31 0.48
2 Ag 2165 2068 0.00 18.22 0.37 0.54
3 Ag 1169 1116 0.00 26.57 0.68 0.81
4 Ag 933 891 0.00 36.01 0.25 0.40
5 Ag 297 284 0.00 2.23 0.33 0.50
6 Au 966 923 120.55 0.00 0.00 0.00
7 Au 259 247 0.15 0.00 0.00 0.00
8 Bg 681 650 0.00 7.13 0.75 0.86
9 Bu 3423 3269 7.34 0.00 0.33 0.49
10 Bu 1743 1664 117.58 0.00 0.00 0.00
11 Bu 1140 1088 388.88 0.00 0.00 0.00
12 Bu 289 276 5.25 0.00 0.00 0.00

Unscaled Zero Point Vibrational Energy (zpe) 8242.5 cm-1
Scaled (by 0.955) Zero Point Vibrational Energy (zpe) 7871.6 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/6-31G(2df,p)
ABC
9.33121 0.14193 0.13980

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP/6-31G(2df,p)

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.232 -0.604 0.000
C2 -0.232 0.604 0.000
N3 0.232 -1.852 0.000
N4 -0.232 1.852 0.000
H5 1.180 -2.242 0.000
H6 -1.180 2.242 0.000

Atom - Atom Distances (Å)
  C1 C2 N3 N4 H5 H6
C11.29491.24782.50011.89163.1769
C21.29492.50011.24783.17691.8916
N31.24782.50013.73341.02444.3304
N42.50011.24783.73344.33041.0244
H51.89163.17691.02444.33045.0661
H63.17691.89164.33041.02445.0661

picture of Ethenediimine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N4 158.991 C1 N3 H5 112.344
C2 C1 N3 158.991 C2 N4 H6 112.344
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B2PLYP/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.156      
2 C 0.156      
3 N -0.430      
4 N -0.430      
5 H 0.273      
6 H 0.273      


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 -19.930 -7.068 0.000
y -7.068 -23.168 0.000
z 0.000 0.000 -22.449
Traceless
 xyz
x 2.878 -7.068 0.000
y -7.068 -1.978 0.000
z 0.000 0.000 -0.900
Polar
3z2-r2-1.800
x2-y23.238
xy-7.068
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.767 -2.123 0.000
y -2.123 10.202 0.000
z 0.000 0.000 2.515


<r2> (average value of r2) Å2
<r2> 80.292
(<r2>)1/2 8.961