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

using model chemistry: HF/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 HF/CEP-31G*
 hartrees
Energy at 0K-51.473623
Energy at 298.15K 
HF Energy-51.473623
Nuclear repulsion energy101.141963
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 HF/CEP-31G*
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' 3781 3396 194.60 268.44 0.32 0.48
2 A' 2608 2342 40.55 219.31 0.09 0.16
3 A' 2281 2048 975.13 6.69 0.71 0.83
4 A' 1450 1302 3.07 49.87 0.22 0.36
5 A' 917 823 502.99 12.11 0.75 0.85
6 A' 693 622 4.45 13.35 0.10 0.18
7 A' 640 575 24.78 16.22 0.71 0.83
8 A' 637 572 1.43 0.33 0.74 0.85
9 A' 485 435 48.56 1.49 0.35 0.52
10 A' 164 147 6.92 0.98 0.75 0.86
11 A' 147 132 9.89 8.76 0.73 0.84
12 A" 2605 2339 63.92 149.11 0.75 0.86
13 A" 1324 1189 10.18 8.03 0.75 0.86
14 A" 795 714 110.00 0.42 0.75 0.86
15 A" 679 610 3.25 1.82 0.75 0.86
16 A" 465 418 10.77 6.69 0.75 0.86
17 A" 428 384 0.29 0.41 0.75 0.86
18 A" 145 130 0.20 9.74 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 10121.2 cm-1
Scaled (by 0.898) Zero Point Vibrational Energy (zpe) 9088.8 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 HF/CEP-31G*
ABC
0.09309 0.09200 0.04644

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.001 -0.056 0.000
C2 -0.001 1.293 0.000
N3 0.109 2.490 0.000
C4 -0.001 -0.772 1.263
C5 -0.001 -0.772 -1.263
N6 -0.001 -1.333 2.270
N7 -0.001 -1.333 -2.270
H8 -0.718 3.071 0.000

Atom - Atom Distances (Å)
  C1 C2 N3 C4 C5 N6 N7 H8
C11.34992.54921.45201.45202.60372.60373.2083
C21.34991.20202.42152.42153.47083.47081.9164
N32.54921.20203.50063.50064.44724.44721.0098
C41.45202.42153.50062.52651.15173.57704.1085
C51.45202.42153.50062.52653.57701.15174.1085
N62.60373.47084.44721.15173.57704.53935.0053
N72.60373.47084.44723.57701.15174.53935.0053
H83.20831.91641.00984.10854.10855.00535.0053

picture of Dicyanoketenimine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N3 174.766 C1 C4 N6 179.549
C1 C5 N7 179.549 C2 C1 C4 119.545
C2 C1 C5 119.545 C2 N3 H8 119.841
C4 C1 C5 120.911
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/CEP-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.167      
2 C -0.160      
3 N 0.064      
4 C -0.444      
5 C -0.444      
6 N 0.374      
7 N 0.374      
8 H 0.403      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.657 5.386 0.000 5.635
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -38.106 -5.451 0.000
y -5.451 -36.450 0.000
z 0.000 0.000 -54.191
Traceless
 xyz
x 7.214 -5.451 0.000
y -5.451 9.698 0.000
z 0.000 0.000 -16.912
Polar
3z2-r2-33.825
x2-y2-1.656
xy-5.451
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.869 -0.072 0.000
y -0.072 11.717 0.000
z 0.000 0.000 8.749


<r2> (average value of r2) Å2
<r2> 161.331
(<r2>)1/2 12.702