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

using model chemistry: HF/CEP-121G

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-121G
 hartrees
Energy at 0K-51.330481
Energy at 298.15K 
HF Energy-51.330481
Nuclear repulsion energy101.433645
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-121G
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' 3845 3509 378.33 260.10 0.31 0.47
2 A' 2472 2256 33.92 229.94 0.09 0.16
3 A' 2252 2055 981.92 16.36 0.73 0.84
4 A' 1406 1283 0.80 50.47 0.23 0.37
5 A' 730 666 41.09 24.90 0.67 0.80
6 A' 684 624 0.98 14.96 0.08 0.15
7 A' 653 596 4.83 2.80 0.21 0.35
8 A' 591 539 645.85 13.28 0.37 0.54
9 A' 490 447 275.43 4.48 0.61 0.76
10 A' 198 181 6.25 0.45 0.75 0.86
11 A' 156 142 6.59 11.06 0.73 0.84
12 A" 2471 2255 71.99 168.32 0.75 0.86
13 A" 1306 1192 9.50 6.83 0.75 0.86
14 A" 844 770 166.95 0.05 0.75 0.86
15 A" 695 634 5.61 2.15 0.75 0.86
16 A" 477 435 9.76 9.44 0.75 0.86
17 A" 446 407 0.84 0.36 0.75 0.86
18 A" 152 139 0.10 11.75 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 9933.6 cm-1
Scaled (by 0.9125) Zero Point Vibrational Energy (zpe) 9064.4 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 HF/CEP-121G
ABC
0.09376 0.09280 0.04674

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/CEP-121G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.005 -0.056 0.000
C2 -0.005 1.292 0.000
N3 0.103 2.478 0.000
C4 -0.005 -0.769 1.248
C5 -0.005 -0.769 -1.248
N6 -0.005 -1.342 2.252
N7 -0.005 -1.342 -2.252
H8 -0.520 3.258 0.000

Atom - Atom Distances (Å)
  C1 C2 N3 C4 C5 N6 N7 H8
C11.34752.53561.43751.43752.59332.59333.3532
C21.34751.19072.40932.40933.46523.46522.0321
N32.53561.19073.47993.47994.43524.43520.9983
C41.43752.40933.47992.49601.15583.54644.2470
C51.43752.40933.47992.49603.54641.15584.2470
N62.59333.46524.43521.15583.54644.50375.1471
N72.59333.46524.43523.54641.15584.50375.1471
H83.35322.03210.99834.24704.24705.14715.1471

picture of Dicyanoketenimine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N3 174.769 C1 C4 N6 179.963
C1 C5 N7 179.963 C2 C1 C4 119.751
C2 C1 C5 119.751 C2 N3 H8 136.174
C4 C1 C5 120.497
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/CEP-121G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.217      
2 C -0.144      
3 N -0.017      
4 C -0.418      
5 C -0.418      
6 N 0.195      
7 N 0.195      
8 H 0.391      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.605 6.435 0.000 6.632
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -39.325 -5.357 0.000
y -5.357 -34.068 0.000
z 0.000 0.000 -56.010
Traceless
 xyz
x 5.714 -5.357 0.000
y -5.357 13.599 0.000
z 0.000 0.000 -19.313
Polar
3z2-r2-38.627
x2-y2-5.257
xy-5.357
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.677 0.124 0.000
y 0.124 11.979 0.000
z 0.000 0.000 8.627


<r2> (average value of r2) Å2
<r2> 161.163
(<r2>)1/2 12.695