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All results from a given calculation for HN=C=C(CN)2 (Dicyanoketenimine)

using model chemistry: B2PLYP/6-311G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B2PLYP/6-311G*
 hartrees
Energy at 0K-316.977916
Energy at 298.15K 
HF Energy-316.632529
Nuclear repulsion energy212.044392
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/6-311G*
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A' 3563 3563 99.77 430.37 0.32 0.48
2 A' 2279 2279 6.09 199.30 0.11 0.20
3 A' 2147 2147 502.17 8.26 0.24 0.38
4 A' 1330 1330 3.75 46.96 0.22 0.37
5 A' 864 864 521.55 9.62 0.72 0.84
6 A' 653 653 2.22 14.25 0.10 0.18
7 A' 607 607 11.41 6.32 0.68 0.81
8 A' 588 588 0.60 0.15 0.44 0.61
9 A' 446 446 30.77 1.39 0.37 0.54
10 A' 173 173 5.93 0.36 0.73 0.84
11 A' 136 136 8.14 8.69 0.73 0.84
12 A" 2275 2275 12.37 163.00 0.75 0.86
13 A" 1223 1223 1.23 7.89 0.75 0.86
14 A" 747 747 98.48 1.12 0.75 0.86
15 A" 632 632 3.00 0.85 0.75 0.86
16 A" 417 417 8.11 5.50 0.75 0.86
17 A" 390 390 0.32 0.24 0.75 0.86
18 A" 134 134 0.00 10.43 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 9301.3 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 9301.3 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 B2PLYP/6-311G*
ABC
0.09376 0.09363 0.04701

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP/6-311G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.009 -0.059 0.000
C2 -0.009 1.282 0.000
N3 0.138 2.476 0.000
C4 -0.009 -0.762 1.242
C5 -0.009 -0.762 -1.242
N6 -0.009 -1.333 2.255
N7 -0.009 -1.333 -2.255
H8 -0.634 3.136 0.000

Atom - Atom Distances (Å)
  C1 C2 N3 C4 C5 N6 N7 H8
C11.34042.53901.42711.42712.59022.59023.2551
C21.34041.20352.39132.39133.45293.45291.9567
N32.53901.20353.47113.47114.42924.42921.0156
C41.42712.39133.47112.48361.16323.54314.1383
C51.42712.39133.47112.48363.54311.16324.1383
N62.59023.45294.42921.16323.54314.51005.0447
N72.59023.45294.42923.54311.16324.51005.0447
H83.25511.95671.01564.13834.13835.04475.0447

picture of Dicyanoketenimine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N3 172.969 C1 C4 N6 179.893
C1 C5 N7 179.893 C2 C1 C4 119.524
C2 C1 C5 119.524 C2 N3 H8 123.488
C4 C1 C5 120.953
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B2PLYP/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.008      
2 C 0.383      
3 N -0.513      
4 C 0.092      
5 C 0.092      
6 N -0.208      
7 N -0.208      
8 H 0.370      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.431 5.383 0.000 5.570
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -38.182 -4.815 0.000
y -4.815 -34.358 0.047
z 0.000 0.047 -52.570
Traceless
 xyz
x 5.282 -4.815 0.000
y -4.815 11.019 0.047
z 0.000 0.047 -16.300
Polar
3z2-r2-32.600
x2-y2-3.825
xy-4.815
xz0.000
yz0.047


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.926 0.031 -0.000
y 0.031 12.027 -0.004
z -0.000 -0.004 9.020


<r2> (average value of r2) Å2
<r2> 210.758
(<r2>)1/2 14.518