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

using model chemistry: mPW1PW91/6-311+G(3df,2p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at mPW1PW91/6-311+G(3df,2p)
 hartrees
Energy at 0K-317.199409
Energy at 298.15K 
HF Energy-317.199409
Nuclear repulsion energy213.554240
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 mPW1PW91/6-311+G(3df,2p)
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' 3579 3579 152.39 363.46 0.29 0.45
2 A' 2376 2376 9.56 281.04 0.09 0.16
3 A' 2186 2186 629.82 8.78 0.37 0.54
4 A' 1354 1354 1.50 43.29 0.17 0.30
5 A' 825 825 448.51 7.11 0.47 0.64
6 A' 664 664 2.83 18.55 0.06 0.11
7 A' 614 614 15.42 3.35 0.59 0.74
8 A' 596 596 0.48 0.51 0.58 0.73
9 A' 455 455 34.47 1.28 0.27 0.43
10 A' 176 176 7.48 0.20 0.66 0.80
11 A' 137 137 9.77 7.72 0.72 0.84
12 A" 2365 2365 34.87 187.68 0.75 0.86
13 A" 1240 1240 0.93 10.77 0.75 0.86
14 A" 741 741 78.59 0.55 0.75 0.86
15 A" 637 637 4.93 0.75 0.75 0.86
16 A" 425 425 7.52 2.67 0.75 0.86
17 A" 399 399 0.68 0.17 0.75 0.86
18 A" 134 134 0.00 8.56 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 9451.3 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 9451.3 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 mPW1PW91/6-311+G(3df,2p)
ABC
0.09517 0.09475 0.04764

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/6-311+G(3df,2p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.006 -0.061 0.000
C2 -0.006 1.273 0.000
N3 0.125 2.458 0.000
C4 -0.006 -0.759 1.237
C5 -0.006 -0.759 -1.237
N6 -0.006 -1.321 2.240
N7 -0.006 -1.321 -2.240
H8 -0.647 3.115 0.000

Atom - Atom Distances (Å)
  C1 C2 N3 C4 C5 N6 N7 H8
C11.33422.52231.42051.42052.57062.57063.2400
C21.33421.19192.37912.37913.42803.42801.9502
N32.52231.19193.44903.44904.39544.39541.0136
C41.42052.37913.44902.47461.15013.52304.1168
C51.42052.37913.44902.47463.52301.15014.1168
N62.57063.42804.39541.15013.52304.48095.0111
N72.57063.42804.39543.52301.15014.48095.0111
H83.24001.95021.01364.11684.11685.01115.0111

picture of Dicyanoketenimine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N3 173.709 C1 C4 N6 179.858
C1 C5 N7 179.858 C2 C1 C4 119.423
C2 C1 C5 119.423 C2 N3 H8 124.110
C4 C1 C5 121.155
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/6-311+G(3df,2p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.971      
2 C 0.743      
3 N -1.069      
4 C 0.712      
5 C 0.712      
6 N -1.146      
7 N -1.146      
8 H 0.223      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.271 5.399 0.000 5.546
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -37.991 -4.437 0.000
y -4.437 -34.591 0.000
z 0.000 0.000 -53.056
Traceless
 xyz
x 5.833 -4.437 0.000
y -4.437 10.933 0.000
z 0.000 0.000 -16.765
Polar
3z2-r2-33.530
x2-y2-3.400
xy-4.437
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.646 0.028 0.000
y 0.028 13.118 0.000
z 0.000 0.000 10.524


<r2> (average value of r2) Å2
<r2> 208.427
(<r2>)1/2 14.437