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

using model chemistry: mPW1PW91/aug-cc-pVDZ

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-pVDZ
 hartrees
Energy at 0K-317.135327
Energy at 298.15K 
HF Energy-317.135327
Nuclear repulsion energy212.188936
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-pVDZ
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A' 3557 3409 134.32 384.58 0.29 0.45
2 A' 2370 2271 10.92 286.96 0.09 0.16
3 A' 2180 2090 603.73 8.54 0.32 0.49
4 A' 1353 1297 3.11 43.49 0.18 0.30
5 A' 859 823 424.68 9.47 0.42 0.59
6 A' 665 637 2.47 19.53 0.05 0.10
7 A' 604 579 10.93 3.46 0.60 0.75
8 A' 588 563 0.62 0.71 0.49 0.66
9 A' 441 423 29.29 1.39 0.27 0.42
10 A' 175 168 7.74 0.19 0.65 0.79
11 A' 134 129 9.40 7.88 0.72 0.84
12 A" 2360 2262 32.39 195.28 0.75 0.86
13 A" 1245 1193 1.67 10.58 0.75 0.86
14 A" 732 702 78.61 0.69 0.75 0.86
15 A" 630 604 3.81 0.59 0.75 0.86
16 A" 411 394 7.44 2.60 0.75 0.86
17 A" 388 372 0.38 0.18 0.75 0.86
18 A" 131 125 0.02 8.77 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 9411.2 cm-1
Scaled (by 0.9583) Zero Point Vibrational Energy (zpe) 9018.8 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-pVDZ
ABC
0.09398 0.09364 0.04707

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.008 -0.061 0.000
C2 -0.008 1.281 0.000
N3 0.137 2.475 0.000
C4 -0.008 -0.762 1.243
C5 -0.008 -0.762 -1.243
N6 -0.008 -1.330 2.254
N7 -0.008 -1.330 -2.254
H8 -0.654 3.117 0.000

Atom - Atom Distances (Å)
  C1 C2 N3 C4 C5 N6 N7 H8
C11.34172.53991.42661.42662.58722.58723.2432
C21.34171.20282.39092.39093.44973.44971.9468
N32.53991.20283.47013.47014.42524.42521.0188
C41.42662.39093.47012.48511.16063.54284.1242
C51.42662.39093.47012.48513.54281.16064.1242
N62.58723.44974.42521.16063.54284.50875.0280
N72.58723.44974.42523.54281.16064.50875.0280
H83.24321.94681.01884.12424.12425.02805.0280

picture of Dicyanoketenimine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N3 173.088 C1 C4 N6 179.897
C1 C5 N7 179.897 C2 C1 C4 119.430
C2 C1 C5 119.430 C2 N3 H8 122.186
C4 C1 C5 121.140
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/aug-cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 1.898      
2 C -0.341      
3 N -0.142      
4 C -0.476      
5 C -0.476      
6 N -0.280      
7 N -0.280      
8 H 0.099      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.287 5.292 0.000 5.446
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -38.135 -4.496 0.000
y -4.496 -35.025 0.000
z 0.000 0.000 -53.117
Traceless
 xyz
x 5.936 -4.496 0.000
y -4.496 10.601 0.000
z 0.000 0.000 -16.537
Polar
3z2-r2-33.074
x2-y2-3.110
xy-4.496
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.702 0.030 0.000
y 0.030 13.333 0.000
z 0.000 0.000 10.690


<r2> (average value of r2) Å2
<r2> 210.728
(<r2>)1/2 14.516