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

using model chemistry: B3PW91/6-311G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B3PW91/6-311G**
 hartrees
Energy at 0K-317.127158
Energy at 298.15K 
HF Energy-317.127158
Nuclear repulsion energy212.891051
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 B3PW91/6-311G**
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' 3547 3416 127.82 415.45 0.31 0.48
2 A' 2359 2272 8.53 218.05 0.12 0.21
3 A' 2177 2097 566.98 7.91 0.37 0.54
4 A' 1344 1295 3.21 41.88 0.21 0.34
5 A' 835 804 450.63 7.64 0.75 0.86
6 A' 661 636 2.77 14.23 0.10 0.18
7 A' 626 603 16.13 5.60 0.68 0.81
8 A' 595 573 0.45 0.11 0.45 0.62
9 A' 449 433 33.44 1.17 0.40 0.57
10 A' 177 170 6.31 0.21 0.70 0.83
11 A' 137 132 8.43 9.13 0.73 0.84
12 A" 2349 2262 27.48 176.05 0.75 0.86
13 A" 1234 1189 1.07 7.58 0.75 0.86
14 A" 736 709 89.06 0.89 0.75 0.86
15 A" 635 611 3.85 1.01 0.75 0.86
16 A" 427 411 8.67 5.67 0.75 0.86
17 A" 397 383 0.52 0.28 0.75 0.86
18 A" 133 128 0.00 10.25 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 9408.8 cm-1
Scaled (by 0.9631) Zero Point Vibrational Energy (zpe) 9061.6 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 B3PW91/6-311G**
ABC
0.09446 0.09436 0.04737

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/6-311G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.006 -0.060 0.000
C2 -0.006 1.278 0.000
N3 0.127 2.468 0.000
C4 -0.006 -0.760 1.239
C5 -0.006 -0.760 -1.239
N6 -0.006 -1.327 2.245
N7 -0.006 -1.327 -2.245
H8 -0.657 3.116 0.000

Atom - Atom Distances (Å)
  C1 C2 N3 C4 C5 N6 N7 H8
C11.33822.53161.42281.42282.57822.57823.2423
C21.33821.19722.38512.38513.43933.43931.9499
N32.53161.19723.46023.46024.41164.41161.0171
C41.42282.38513.46022.47741.15543.53004.1212
C51.42282.38513.46022.47743.53001.15544.1212
N62.57823.43934.41161.15543.53004.49105.0208
N72.57823.43934.41163.53001.15544.49105.0208
H83.24231.94991.01714.12124.12125.02085.0208

picture of Dicyanoketenimine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N3 173.630 C1 C4 N6 179.911
C1 C5 N7 179.911 C2 C1 C4 119.472
C2 C1 C5 119.472 C2 N3 H8 123.219
C4 C1 C5 121.057
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/6-311G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.012      
2 C 0.352      
3 N -0.380      
4 C 0.137      
5 C 0.137      
6 N -0.248      
7 N -0.248      
8 H 0.261      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.389 5.351 0.000 5.528
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -37.786 -4.676 0.000
y -4.676 -34.275 0.000
z 0.000 0.000 -52.150
Traceless
 xyz
x 5.426 -4.676 0.000
y -4.676 10.693 0.000
z 0.000 0.000 -16.119
Polar
3z2-r2-32.239
x2-y2-3.511
xy-4.676
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.957 -0.022 0.000
y -0.022 11.958 0.000
z 0.000 0.000 9.280


<r2> (average value of r2) Å2
<r2> 209.167
(<r2>)1/2 14.463