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

using model chemistry: B2PLYP/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 B2PLYP/6-31G(2df,p)
 hartrees
Energy at 0K-316.958657
Energy at 298.15K 
HF Energy-316.582033
Nuclear repulsion energy212.131373
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 B2PLYP/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' 3567 3407 129.78 397.19 0.31 0.48
2 A' 2288 2185 5.47 191.46 0.11 0.19
3 A' 2157 2060 484.95 7.83 0.25 0.40
4 A' 1330 1270 1.67 44.96 0.22 0.37
5 A' 841 803 476.03 9.14 0.66 0.79
6 A' 655 626 1.62 14.50 0.09 0.17
7 A' 620 592 14.04 4.42 0.67 0.80
8 A' 585 558 0.19 0.27 0.49 0.66
9 A' 451 431 33.03 1.54 0.41 0.58
10 A' 178 170 7.68 0.32 0.71 0.83
11 A' 135 129 9.08 7.85 0.73 0.84
12 A" 2283 2181 12.84 154.85 0.75 0.86
13 A" 1221 1166 0.92 7.49 0.75 0.86
14 A" 745 711 82.78 1.36 0.75 0.86
15 A" 628 600 2.79 0.66 0.75 0.86
16 A" 423 404 7.03 3.81 0.75 0.86
17 A" 391 373 0.46 0.15 0.75 0.86
18 A" 132 126 0.03 9.49 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 9314.4 cm-1
Scaled (by 0.955) Zero Point Vibrational Energy (zpe) 8895.2 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 B2PLYP/6-31G(2df,p)
ABC
0.09405 0.09356 0.04706

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP/6-31G(2df,p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.008 -0.060 0.000
C2 -0.008 1.278 0.000
N3 0.134 2.474 0.000
C4 -0.008 -0.761 1.241
C5 -0.008 -0.761 -1.241
N6 -0.008 -1.331 2.256
N7 -0.008 -1.331 -2.256
H8 -0.644 3.127 0.000

Atom - Atom Distances (Å)
  C1 C2 N3 C4 C5 N6 N7 H8
C11.33832.53771.42531.42532.58972.58973.2498
C21.33831.20372.38712.38713.44963.44961.9550
N32.53771.20373.46733.46734.42564.42561.0157
C41.42532.38713.46732.48231.16443.54384.1302
C51.42532.38713.46732.48233.54381.16444.1302
N62.58973.44964.42561.16443.54384.51305.0366
N72.58973.44964.42563.54381.16444.51305.0366
H83.24981.95501.01574.13024.13025.03665.0366

picture of Dicyanoketenimine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N3 173.256 C1 C4 N6 179.866
C1 C5 N7 179.866 C2 C1 C4 119.448
C2 C1 C5 119.448 C2 N3 H8 123.268
C4 C1 C5 121.103
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B2PLYP/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.199      
2 C 0.400      
3 N -0.434      
4 C 0.213      
5 C 0.213      
6 N -0.261      
7 N -0.261      
8 H 0.328      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.300 5.230 0.000 5.389
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -37.297 -4.428 0.000
y -4.428 -34.102 0.045
z 0.000 0.045 -51.954
Traceless
 xyz
x 5.731 -4.428 0.000
y -4.428 10.524 0.045
z 0.000 0.045 -16.255
Polar
3z2-r2-32.510
x2-y2-3.195
xy-4.428
xz0.000
yz0.045


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.184 -0.034 -0.000
y -0.034 12.031 -0.003
z -0.000 -0.003 9.128


<r2> (average value of r2) Å2
<r2> 210.171
(<r2>)1/2 14.497