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

using model chemistry: B3LYP/aug-cc-pVTZ

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/aug-cc-pVTZ
 hartrees
Energy at 0K-317.305029
Energy at 298.15K 
HF Energy-317.305029
Nuclear repulsion energy213.046638
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/aug-cc-pVTZ
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' 3519 3405 131.51 417.51 0.29 0.45
2 A' 2345 2269 8.10 294.83 0.09 0.16
3 A' 2150 2080 603.86 9.20 0.32 0.49
4 A' 1332 1289 2.12 45.41 0.18 0.30
5 A' 844 816 452.57 8.38 0.40 0.57
6 A' 655 634 2.20 19.11 0.05 0.10
7 A' 611 591 11.74 3.46 0.60 0.75
8 A' 591 572 0.32 0.55 0.63 0.78
9 A' 447 432 28.19 1.23 0.27 0.43
10 A' 177 171 7.80 0.22 0.67 0.80
11 A' 136 132 9.70 7.72 0.72 0.84
12 A" 2331 2256 33.68 194.01 0.75 0.86
13 A" 1215 1176 1.23 11.42 0.75 0.86
14 A" 737 713 77.15 0.64 0.75 0.86
15 A" 633 612 4.45 0.71 0.75 0.86
16 A" 416 403 7.10 2.47 0.75 0.86
17 A" 392 379 0.61 0.14 0.75 0.86
18 A" 134 130 0.01 8.76 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 9332.3 cm-1
Scaled (by 0.9675) Zero Point Vibrational Energy (zpe) 9029.0 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/aug-cc-pVTZ
ABC
0.09454 0.09447 0.04741

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/aug-cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.007 -0.059 0.000
C2 -0.007 1.278 0.000
N3 0.130 2.465 0.000
C4 -0.007 -0.761 1.240
C5 -0.007 -0.761 -1.240
N6 -0.007 -1.326 2.243
N7 -0.007 -1.326 -2.243
H8 -0.642 3.126 0.000

Atom - Atom Distances (Å)
  C1 C2 N3 C4 C5 N6 N7 H8
C11.33682.52791.42481.42482.57682.57683.2474
C21.33681.19522.38622.38623.43753.43751.9539
N32.52791.19523.45903.45904.40804.40801.0157
C41.42482.38623.45902.47961.15213.52894.1288
C51.42482.38623.45902.47963.52891.15214.1288
N62.57683.43754.40801.15213.52894.48695.0259
N72.57683.43754.40803.52891.15214.48695.0259
H83.24741.95391.01574.12884.12885.02595.0259

picture of Dicyanoketenimine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N3 173.436 C1 C4 N6 179.885
C1 C5 N7 179.885 C2 C1 C4 119.520
C2 C1 C5 119.520 C2 N3 H8 123.994
C4 C1 C5 120.959
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/aug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 1.182      
2 C 0.097      
3 N -0.432      
4 C 0.019      
5 C 0.019      
6 N -0.534      
7 N -0.534      
8 H 0.182      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.256 5.362 0.000 5.507
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -38.209 -4.395 0.000
y -4.395 -35.225 0.000
z 0.000 0.000 -53.557
Traceless
 xyz
x 6.182 -4.395 0.000
y -4.395 10.658 0.000
z 0.000 0.000 -16.840
Polar
3z2-r2-33.680
x2-y2-2.984
xy-4.395
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.801 0.020 0.000
y 0.020 13.437 0.000
z 0.000 0.000 10.737


<r2> (average value of r2) Å2
<r2> 209.599
(<r2>)1/2 14.478