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

using model chemistry: B3LYP/CEP-31G*

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/CEP-31G*
 hartrees
Energy at 0K-52.788313
Energy at 298.15K 
HF Energy-52.788313
Nuclear repulsion energy99.875969
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/CEP-31G*
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A' 3500 3380 83.17 419.60 0.32 0.48
2 A' 2340 2260 13.23 254.67 0.10 0.19
3 A' 2136 2063 559.01 8.11 0.38 0.55
4 A' 1330 1285 9.90 46.01 0.20 0.33
5 A' 880 850 428.64 13.27 0.69 0.82
6 A' 652 630 2.64 16.30 0.10 0.18
7 A' 567 548 1.07 0.33 0.52 0.68
8 A' 553 534 5.23 8.96 0.68 0.81
9 A' 418 404 21.74 1.77 0.23 0.37
10 A' 152 147 5.26 0.52 0.74 0.85
11 A' 129 124 7.07 9.45 0.73 0.84
12 A" 2330 2250 33.90 194.68 0.75 0.86
13 A" 1222 1180 5.42 10.03 0.75 0.86
14 A" 715 690 91.72 1.62 0.75 0.86
15 A" 608 587 2.20 0.44 0.75 0.86
16 A" 403 389 8.36 4.57 0.75 0.86
17 A" 370 358 0.02 0.36 0.75 0.86
18 A" 126 122 0.00 10.68 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 9215.4 cm-1
Scaled (by 0.9657) Zero Point Vibrational Energy (zpe) 8899.4 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/CEP-31G*
ABC
0.09076 0.09048 0.04548

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/CEP-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.012 -0.061 0.000
C2 -0.012 1.306 0.000
N3 0.157 2.519 0.000
C4 -0.012 -0.775 1.264
C5 -0.012 -0.775 -1.264
N6 -0.012 -1.354 2.293
N7 -0.012 -1.354 -2.293
H8 -0.657 3.149 0.000

Atom - Atom Distances (Å)
  C1 C2 N3 C4 C5 N6 N7 H8
C11.36712.58581.45131.45132.63222.63223.2745
C21.36711.22482.43432.43433.51153.51151.9529
N32.58581.22483.53183.53184.50374.50371.0289
C41.45132.43433.53182.52761.18103.60384.1724
C51.45132.43433.53182.52763.60381.18104.1724
N62.63223.51154.50371.18103.60384.58655.0939
N72.63223.51154.50373.60381.18104.58655.0939
H83.27451.95291.02894.17244.17245.09395.0939

picture of Dicyanoketenimine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N3 172.111 C1 C4 N6 179.902
C1 C5 N7 179.902 C2 C1 C4 119.444
C2 C1 C5 119.444 C2 N3 H8 119.868
C4 C1 C5 121.111
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/CEP-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.002      
2 C -0.292      
3 N 0.155      
4 C -0.522      
5 C -0.522      
6 N 0.411      
7 N 0.411      
8 H 0.357      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.451 5.188 0.000 5.387
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -37.872 -4.913 0.000
y -4.913 -34.796 0.000
z 0.000 0.000 -52.305
Traceless
 xyz
x 5.679 -4.913 0.000
y -4.913 10.292 0.000
z 0.000 0.000 -15.971
Polar
3z2-r2-31.942
x2-y2-3.076
xy-4.913
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.040 0.021 0.000
y 0.021 12.718 0.000
z 0.000 0.000 9.799


<r2> (average value of r2) Å2
<r2> 163.542
(<r2>)1/2 12.788