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

using model chemistry: mPW1PW91/aug-cc-pVTZ

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/aug-cc-pVTZ
 hartrees
Energy at 0K-317.206780
Energy at 298.15K 
HF Energy-317.206780
Nuclear repulsion energy213.523213
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/aug-cc-pVTZ
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' 3570 3420 151.18 374.86 0.29 0.45
2 A' 2375 2276 9.49 286.45 0.09 0.16
3 A' 2184 2092 625.50 8.61 0.37 0.54
4 A' 1353 1296 1.48 43.28 0.18 0.30
5 A' 830 795 447.70 7.41 0.43 0.60
6 A' 664 636 2.55 18.86 0.05 0.10
7 A' 616 590 14.97 3.36 0.59 0.74
8 A' 596 571 0.47 0.54 0.60 0.75
9 A' 454 435 33.39 1.22 0.28 0.44
10 A' 176 168 7.57 0.21 0.68 0.81
11 A' 136 130 9.72 7.57 0.72 0.84
12 A" 2364 2265 34.74 186.95 0.75 0.86
13 A" 1240 1188 0.94 10.62 0.75 0.86
14 A" 739 708 77.74 0.54 0.75 0.86
15 A" 637 610 4.88 0.72 0.75 0.86
16 A" 422 405 7.41 2.49 0.75 0.86
17 A" 397 381 0.64 0.16 0.75 0.86
18 A" 132 127 0.00 8.45 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 9441.2 cm-1
Scaled (by 0.9581) Zero Point Vibrational Energy (zpe) 9045.6 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 mPW1PW91/aug-cc-pVTZ
ABC
0.09523 0.09464 0.04763

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/aug-cc-pVTZ

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 0.126 2.458 0.000
C4 -0.006 -0.759 1.238
C5 -0.006 -0.759 -1.238
N6 -0.006 -1.320 2.242
N7 -0.006 -1.320 -2.242
H8 -0.647 3.113 0.000

Atom - Atom Distances (Å)
  C1 C2 N3 C4 C5 N6 N7 H8
C11.33442.52271.42081.42082.57112.57113.2383
C21.33441.19222.37922.37923.42793.42791.9484
N32.52271.19223.44913.44914.39524.39521.0134
C41.42082.37923.44912.47571.15033.52474.1149
C51.42082.37923.44912.47573.52471.15034.1149
N62.57113.42794.39521.15033.52474.48365.0089
N72.57113.42794.39523.52471.15034.48365.0089
H83.23831.94841.01344.11494.11495.00895.0089

picture of Dicyanoketenimine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N3 173.647 C1 C4 N6 179.823
C1 C5 N7 179.823 C2 C1 C4 119.397
C2 C1 C5 119.397 C2 N3 H8 123.908
C4 C1 C5 121.207
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/aug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 1.016      
2 C 0.195      
3 N -0.446      
4 C 0.137      
5 C 0.137      
6 N -0.607      
7 N -0.607      
8 H 0.174      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.265 5.383 0.000 5.530
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -37.898 -4.409 0.000
y -4.409 -34.614 0.000
z 0.000 0.000 -53.036
Traceless
 xyz
x 5.927 -4.409 0.000
y -4.409 10.853 0.000
z 0.000 0.000 -16.780
Polar
3z2-r2-33.561
x2-y2-3.284
xy-4.409
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.695 0.019 0.000
y 0.019 13.156 0.000
z 0.000 0.000 10.568


<r2> (average value of r2) Å2
<r2> 208.453
(<r2>)1/2 14.438