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

using model chemistry: B3LYP/3-21G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B3LYP/3-21G*
 hartrees
Energy at 0K-315.435431
Energy at 298.15K 
HF Energy-315.435431
Nuclear repulsion energy212.119283
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 B3LYP/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 A' 3485 3353 147.98 502.13 0.32 0.48
2 A' 2341 2253 3.09 152.31 0.13 0.22
3 A' 2221 2136 467.66 10.00 0.40 0.57
4 A' 1334 1283 1.22 41.78 0.25 0.40
5 A' 786 757 138.71 18.19 0.65 0.79
6 A' 726 698 471.52 7.93 0.31 0.47
7 A' 665 640 5.43 11.49 0.12 0.22
8 A' 626 602 0.10 0.24 0.10 0.18
9 A' 512 493 57.00 1.28 0.75 0.86
10 A' 187 180 3.31 0.50 0.74 0.85
11 A' 152 147 5.84 8.84 0.73 0.84
12 A" 2328 2240 20.53 141.95 0.75 0.86
13 A" 1209 1164 0.41 5.34 0.75 0.86
14 A" 767 738 105.80 0.96 0.75 0.86
15 A" 666 641 9.68 1.14 0.75 0.86
16 A" 507 487 13.16 5.89 0.75 0.86
17 A" 457 439 1.42 0.10 0.75 0.86
18 A" 149 143 0.37 10.74 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 9559.0 cm-1
Scaled (by 0.962) Zero Point Vibrational Energy (zpe) 9195.7 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 B3LYP/3-21G*
ABC
0.09476 0.09288 0.04703

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/3-21G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.001 -0.055 0.000
C2 0.001 1.287 0.000
N3 0.084 2.481 0.000
C4 0.001 -0.761 1.233
C5 0.001 -0.761 -1.233
N6 0.001 -1.346 2.243
N7 0.001 -1.346 -2.243
H8 -0.628 3.214 0.000

Atom - Atom Distances (Å)
  C1 C2 N3 C4 C5 N6 N7 H8
C11.34232.53771.42091.42092.58762.58763.3293
C21.34231.19692.39042.39043.45853.45852.0271
N32.53771.19693.46933.46934.43634.43631.0220
C41.42092.39043.46932.46691.16673.52524.2089
C51.42092.39043.46932.46693.52521.16674.2089
N62.58763.45854.43631.16673.52524.48585.1202
N72.58763.45854.43633.52521.16674.48585.1202
H83.32932.02711.02204.20894.20895.12025.1202

picture of Dicyanoketenimine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N3 176.029 C1 C4 N6 179.663
C1 C5 N7 179.663 C2 C1 C4 119.760
C2 C1 C5 119.760 C2 N3 H8 131.857
C4 C1 C5 120.480
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.019      
2 C 0.589      
3 N -0.725      
4 C 0.344      
5 C 0.344      
6 N -0.462      
7 N -0.462      
8 H 0.354      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.500 5.713 0.000 5.906
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -37.857 -4.967 0.000
y -4.967 -32.530 0.000
z 0.000 0.000 -51.501
Traceless
 xyz
x 4.158 -4.967 0.000
y -4.967 12.149 0.000
z 0.000 0.000 -16.308
Polar
3z2-r2-32.615
x2-y2-5.327
xy-4.967
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.669 -0.101 0.000
y -0.101 11.068 0.000
z 0.000 0.000 7.972


<r2> (average value of r2) Å2
<r2> 210.171
(<r2>)1/2 14.497