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

using model chemistry: B1B95/6-31G(2df,p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B1B95/6-31G(2df,p)
 hartrees
Energy at 0K-317.088140
Energy at 298.15K 
HF Energy-317.088140
Nuclear repulsion energy213.199084
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 B1B95/6-31G(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 A' 3583 3431 139.83 383.45 0.31 0.47
2 A' 2389 2288 9.40 202.42 0.11 0.20
3 A' 2199 2106 566.53 7.45 0.36 0.53
4 A' 1355 1298 1.51 39.57 0.21 0.35
5 A' 826 791 446.26 7.49 0.71 0.83
6 A' 665 637 2.30 14.11 0.09 0.16
7 A' 635 608 18.80 3.85 0.67 0.80
8 A' 593 568 0.17 0.23 0.48 0.65
9 A' 460 440 37.07 1.34 0.45 0.62
10 A' 180 172 7.94 0.24 0.71 0.83
11 A' 135 129 9.22 8.01 0.73 0.84
12 A" 2379 2279 28.10 160.86 0.75 0.86
13 A" 1243 1190 0.90 7.18 0.75 0.86
14 A" 745 714 82.05 1.17 0.75 0.86
15 A" 632 606 3.46 0.82 0.75 0.86
16 A" 436 417 7.91 3.88 0.75 0.86
17 A" 401 384 0.61 0.18 0.75 0.86
18 A" 131 125 0.02 9.21 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 9493.1 cm-1
Scaled (by 0.9577) Zero Point Vibrational Energy (zpe) 9091.5 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 B1B95/6-31G(2df,p)
ABC
0.09508 0.09428 0.04750

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/6-31G(2df,p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.005 -0.062 0.000
C2 -0.005 1.273 0.000
N3 0.124 2.461 0.000
C4 -0.005 -0.759 1.239
C5 -0.005 -0.759 -1.239
N6 -0.005 -1.321 2.247
N7 -0.005 -1.321 -2.247
H8 -0.658 3.108 0.000

Atom - Atom Distances (Å)
  C1 C2 N3 C4 C5 N6 N7 H8
C11.33472.52681.42131.42132.57542.57543.2365
C21.33471.19582.37922.37923.43153.43151.9479
N32.52681.19583.45253.45254.40144.40141.0141
C41.42132.37923.45252.47781.15413.53064.1122
C51.42132.37923.45252.47783.53061.15414.1122
N62.57543.43154.40141.15413.53064.49325.0090
N72.57543.43154.40143.53061.15414.49325.0090
H83.23651.94791.01414.11224.11225.00905.0090

picture of Dicyanoketenimine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N3 173.810 C1 C4 N6 179.834
C1 C5 N7 179.834 C2 C1 C4 119.344
C2 C1 C5 119.344 C2 N3 H8 123.420
C4 C1 C5 121.312
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.218      
2 C 0.464      
3 N -0.489      
4 C 0.280      
5 C 0.280      
6 N -0.324      
7 N -0.324      
8 H 0.329      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.311 5.210 0.000 5.372
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -36.924 -4.437 0.000
y -4.437 -33.780 0.000
z 0.000 0.000 -51.438
Traceless
 xyz
x 5.685 -4.437 0.000
y -4.437 10.401 0.000
z 0.000 0.000 -16.086
Polar
3z2-r2-32.172
x2-y2-3.144
xy-4.437
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.175 -0.070 0.000
y -0.070 11.837 0.000
z 0.000 0.000 9.223


<r2> (average value of r2) Å2
<r2> 208.204
(<r2>)1/2 14.429