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

using model chemistry: mPW1PW91/6-311G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at mPW1PW91/6-311G**
 hartrees
Energy at 0K-317.170720
Energy at 298.15K 
HF Energy-317.170720
Nuclear repulsion energy213.213861
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 mPW1PW91/6-311G**
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' 3573 3418 136.90 401.25 0.31 0.48
2 A' 2382 2279 9.82 215.30 0.12 0.21
3 A' 2193 2098 591.69 7.82 0.38 0.55
4 A' 1357 1298 2.93 42.11 0.21 0.35
5 A' 835 798 452.35 7.61 0.75 0.86
6 A' 665 636 2.91 13.85 0.10 0.18
7 A' 631 604 18.32 5.80 0.68 0.81
8 A' 600 574 0.49 0.11 0.44 0.61
9 A' 454 434 36.22 1.21 0.42 0.59
10 A' 177 170 6.43 0.22 0.71 0.83
11 A' 138 132 8.56 9.03 0.73 0.84
12 A" 2372 2270 28.88 173.18 0.75 0.86
13 A" 1246 1192 1.17 7.68 0.75 0.86
14 A" 742 710 89.88 0.81 0.75 0.86
15 A" 640 612 4.06 1.09 0.75 0.86
16 A" 431 412 8.75 5.81 0.75 0.86
17 A" 401 384 0.55 0.28 0.75 0.86
18 A" 134 128 0.00 10.14 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 9485.0 cm-1
Scaled (by 0.9567) Zero Point Vibrational Energy (zpe) 9074.3 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 mPW1PW91/6-311G**
ABC
0.09480 0.09456 0.04750

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/6-311G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.005 -0.060 0.000
C2 -0.005 1.276 0.000
N3 0.124 2.464 0.000
C4 -0.005 -0.759 1.238
C5 -0.005 -0.759 -1.238
N6 -0.005 -1.324 2.243
N7 -0.005 -1.324 -2.243
H8 -0.661 3.108 0.000

Atom - Atom Distances (Å)
  C1 C2 N3 C4 C5 N6 N7 H8
C11.33612.52751.42161.42162.57452.57453.2350
C21.33611.19512.38212.38213.43383.43381.9457
N32.52751.19513.45533.45534.40434.40431.0153
C41.42162.38213.45532.47561.15303.52624.1129
C51.42162.38213.45532.47563.52621.15304.1129
N62.57453.43384.40431.15303.52624.48585.0102
N72.57453.43384.40433.52621.15304.48585.0102
H83.23501.94571.01534.11294.11295.01025.0102

picture of Dicyanoketenimine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N3 173.797 C1 C4 N6 179.879
C1 C5 N7 179.879 C2 C1 C4 119.458
C2 C1 C5 119.458 C2 N3 H8 123.135
C4 C1 C5 121.083
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/6-311G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.007      
2 C 0.359      
3 N -0.388      
4 C 0.142      
5 C 0.142      
6 N -0.254      
7 N -0.254      
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
  -1.400 5.355 0.000 5.535
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -37.763 -4.701 0.000
y -4.701 -34.297 0.000
z 0.000 0.000 -52.152
Traceless
 xyz
x 5.461 -4.701 0.000
y -4.701 10.661 0.000
z 0.000 0.000 -16.122
Polar
3z2-r2-32.244
x2-y2-3.467
xy-4.701
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.942 -0.028 0.000
y -0.028 11.857 0.000
z 0.000 0.000 9.184


<r2> (average value of r2) Å2
<r2> 208.635
(<r2>)1/2 14.444