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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-317.166795
Energy at 298.15K 
HF Energy-317.166795
Nuclear repulsion energy213.212493
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' 3585 3421 104.90 409.47 0.32 0.48
2 A' 2382 2273 9.80 215.86 0.12 0.21
3 A' 2193 2093 589.69 7.99 0.35 0.52
4 A' 1357 1295 3.52 42.21 0.21 0.35
5 A' 852 813 494.03 8.05 0.75 0.86
6 A' 665 635 2.95 13.87 0.10 0.18
7 A' 632 603 16.31 5.71 0.69 0.81
8 A' 600 572 0.45 0.12 0.42 0.59
9 A' 456 435 34.98 1.15 0.42 0.59
10 A' 177 169 6.48 0.24 0.72 0.83
11 A' 138 131 8.52 9.06 0.73 0.84
12 A" 2372 2264 28.99 174.19 0.75 0.86
13 A" 1246 1190 1.17 7.79 0.75 0.86
14 A" 749 715 98.93 0.82 0.75 0.86
15 A" 640 611 3.63 1.12 0.75 0.86
16 A" 431 412 9.28 5.77 0.75 0.86
17 A" 401 383 0.47 0.27 0.75 0.86
18 A" 134 128 0.00 10.28 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 9504.9 cm-1
Scaled (by 0.9544) Zero Point Vibrational Energy (zpe) 9071.5 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 mPW1PW91/6-311G*
ABC
0.09477 0.09458 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 -0.006 -0.060 0.000
C2 -0.006 1.276 0.000
N3 0.127 2.463 0.000
C4 -0.006 -0.759 1.238
C5 -0.006 -0.759 -1.238
N6 -0.006 -1.324 2.243
N7 -0.006 -1.324 -2.243
H8 -0.648 3.118 0.000

Atom - Atom Distances (Å)
  C1 C2 N3 C4 C5 N6 N7 H8
C11.33622.52731.42151.42152.57452.57453.2421
C21.33621.19502.38222.38223.43393.43391.9503
N32.52731.19503.45503.45504.40414.40411.0140
C41.42152.38223.45502.47531.15303.52594.1202
C51.42152.38223.45502.47533.52591.15304.1202
N62.57453.43394.40411.15303.52594.48555.0174
N72.57453.43394.40413.52591.15304.48555.0174
H83.24211.95031.01404.12024.12025.01745.0174

picture of Dicyanoketenimine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N3 173.587 C1 C4 N6 179.878
C1 C5 N7 179.878 C2 C1 C4 119.464
C2 C1 C5 119.464 C2 N3 H8 123.770
C4 C1 C5 121.072
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 -0.021      
2 C 0.432      
3 N -0.559      
4 C 0.142      
5 C 0.142      
6 N -0.255      
7 N -0.255      
8 H 0.373      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.452 5.386 0.000 5.578
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -37.823 -4.859 0.000
y -4.859 -34.150 0.000
z 0.000 0.000 -52.194
Traceless
 xyz
x 5.349 -4.859 0.000
y -4.859 10.858 0.000
z 0.000 0.000 -16.207
Polar
3z2-r2-32.415
x2-y2-3.672
xy-4.859
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.913 -0.003 0.000
y -0.003 11.875 0.000
z 0.000 0.000 9.164


<r2> (average value of r2) Å2
<r2> 208.657
(<r2>)1/2 14.445