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

using model chemistry: mPW1PW91/STO-3G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at mPW1PW91/STO-3G
 hartrees
Energy at 0K-313.036791
Energy at 298.15K 
HF Energy-313.036791
Nuclear repulsion energy207.434404
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 mPW1PW91/STO-3G
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' 3545 3116 41.11 336.54 0.32 0.49
2 A' 2403 2112 2.82 121.15 0.11 0.20
3 A' 2211 1943 183.49 8.41 0.17 0.28
4 A' 1357 1193 0.63 33.01 0.22 0.36
5 A' 989 869 372.46 22.64 0.67 0.80
6 A' 669 588 0.31 7.99 0.09 0.17
7 A' 622 547 8.15 6.79 0.71 0.83
8 A' 598 525 0.05 0.05 0.51 0.67
9 A' 409 359 15.08 1.71 0.40 0.58
10 A' 178 156 5.89 0.36 0.68 0.81
11 A' 134 118 4.69 5.79 0.72 0.84
12 A" 2392 2102 11.96 106.92 0.75 0.86
13 A" 1232 1083 0.30 6.36 0.75 0.86
14 A" 779 685 72.16 6.00 0.75 0.86
15 A" 623 548 0.05 0.42 0.75 0.86
16 A" 399 351 6.54 2.72 0.75 0.86
17 A" 386 339 0.87 1.12 0.75 0.86
18 A" 130 114 0.02 7.83 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 9527.3 cm-1
Scaled (by 0.8789) Zero Point Vibrational Energy (zpe) 8373.5 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 mPW1PW91/STO-3G
ABC
0.09069 0.08923 0.04518

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/STO-3G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.021 -0.043 0.000
C2 -0.021 1.307 0.000
N3 0.206 2.537 0.000
C4 -0.021 -0.772 1.258
C5 -0.021 -0.772 -1.258
N6 -0.021 -1.375 2.291
N7 -0.021 -1.375 -2.291
H8 -0.658 3.165 0.000

Atom - Atom Distances (Å)
  C1 C2 N3 C4 C5 N6 N7 H8
C11.35062.59021.45391.45392.65002.65003.2714
C21.35061.25032.43032.43033.52753.52751.9643
N32.59021.25033.54733.54734.53894.53891.0679
C41.45392.43033.54732.51611.19623.60024.1824
C51.45392.43033.54732.51613.60021.19624.1824
N62.65003.52754.53891.19623.60024.58275.1253
N72.65003.52754.53893.60021.19624.58275.1253
H83.27141.96431.06794.18244.18245.12535.1253

picture of Dicyanoketenimine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N3 169.576 C1 C4 N6 179.827
C1 C5 N7 179.827 C2 C1 C4 120.080
C2 C1 C5 120.080 C2 N3 H8 115.628
C4 C1 C5 119.840
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/STO-3G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.050      
2 C 0.187      
3 N -0.234      
4 C 0.081      
5 C 0.081      
6 N -0.156      
7 N -0.156      
8 H 0.247      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.446 4.230 0.000 4.470
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -34.614 -4.651 0.000
y -4.651 -33.136 0.000
z 0.000 0.000 -46.760
Traceless
 xyz
x 5.333 -4.651 0.000
y -4.651 7.551 0.000
z 0.000 0.000 -12.885
Polar
3z2-r2-25.769
x2-y2-1.479
xy-4.651
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.468 -0.151 0.000
y -0.151 8.834 0.000
z 0.000 0.000 5.667


<r2> (average value of r2) Å2
<r2> 216.026
(<r2>)1/2 14.698