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

using model chemistry: PBE1PBE/6-311G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at PBE1PBE/6-311G*
 hartrees
Energy at 0K-316.885294
Energy at 298.15K 
HF Energy-316.885294
Nuclear repulsion energy213.102679
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 PBE1PBE/6-311G*
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' 3581 3432 107.31 409.54 0.32 0.48
2 A' 2381 2282 9.84 215.24 0.12 0.21
3 A' 2195 2104 585.20 7.93 0.35 0.52
4 A' 1358 1302 3.45 41.75 0.21 0.35
5 A' 851 815 489.92 8.07 0.75 0.86
6 A' 666 638 2.98 13.96 0.10 0.18
7 A' 631 605 16.07 5.61 0.69 0.81
8 A' 599 574 0.49 0.12 0.41 0.58
9 A' 455 436 35.18 1.15 0.42 0.59
10 A' 177 169 6.39 0.24 0.72 0.83
11 A' 137 131 8.42 9.04 0.73 0.84
12 A" 2371 2273 28.47 173.84 0.75 0.86
13 A" 1249 1197 1.08 7.66 0.75 0.86
14 A" 748 716 98.63 0.84 0.75 0.86
15 A" 639 613 3.67 1.09 0.75 0.86
16 A" 431 413 9.35 5.71 0.75 0.86
17 A" 401 384 0.46 0.27 0.75 0.86
18 A" 133 128 0.00 10.25 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 9500.2 cm-1
Scaled (by 0.9585) Zero Point Vibrational Energy (zpe) 9105.9 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 PBE1PBE/6-311G*
ABC
0.09471 0.09447 0.04746

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBE1PBE/6-311G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.007 -0.061 0.000
C2 -0.007 1.276 0.000
N3 0.128 2.464 0.000
C4 -0.007 -0.760 1.238
C5 -0.007 -0.760 -1.238
N6 -0.007 -1.325 2.244
N7 -0.007 -1.325 -2.244
H8 -0.648 3.118 0.000

Atom - Atom Distances (Å)
  C1 C2 N3 C4 C5 N6 N7 H8
C11.33692.52881.42171.42172.57572.57573.2433
C21.33691.19592.38272.38273.43543.43541.9509
N32.52881.19593.45623.45624.40614.40611.0151
C41.42172.38273.45622.47601.15413.52784.1212
C51.42172.38273.45622.47603.52781.15414.1212
N62.57573.43544.40611.15413.52784.48845.0191
N72.57573.43544.40613.52781.15414.48845.0191
H83.24331.95091.01514.12124.12125.01915.0191

picture of Dicyanoketenimine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N3 173.544 C1 C4 N6 179.881
C1 C5 N7 179.881 C2 C1 C4 119.446
C2 C1 C5 119.446 C2 N3 H8 123.656
C4 C1 C5 121.108
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBE1PBE/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.013      
2 C 0.426      
3 N -0.555      
4 C 0.132      
5 C 0.132      
6 N -0.248      
7 N -0.248      
8 H 0.374      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.452 5.382 0.000 5.575
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -37.894 -4.860 0.000
y -4.860 -34.157 0.000
z 0.000 0.000 -52.204
Traceless
 xyz
x 5.287 -4.860 0.000
y -4.860 10.892 0.000
z 0.000 0.000 -16.179
Polar
3z2-r2-32.358
x2-y2-3.737
xy-4.860
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.917 -0.003 0.000
y -0.003 11.878 0.000
z 0.000 0.000 9.174


<r2> (average value of r2) Å2
<r2> 208.839
(<r2>)1/2 14.451