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

using model chemistry: PBEPBE/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at PBEPBE/6-31G*
 hartrees
Energy at 0K-316.819602
Energy at 298.15K 
HF Energy-316.819602
Nuclear repulsion energy210.427263
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 PBEPBE/6-31G*
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' 3419 3371 54.53 548.48 0.32 0.48
2 A' 2269 2237 3.87 208.02 0.13 0.23
3 A' 2118 2088 426.85 8.69 0.29 0.45
4 A' 1302 1284 5.76 38.52 0.21 0.35
5 A' 859 846 438.01 11.31 0.73 0.84
6 A' 647 637 1.84 15.95 0.10 0.19
7 A' 598 589 8.13 4.92 0.72 0.83
8 A' 567 559 0.35 0.15 0.43 0.60
9 A' 413 407 21.54 1.04 0.36 0.53
10 A' 169 167 6.27 0.18 0.66 0.80
11 A' 128 126 7.32 10.06 0.73 0.84
12 A" 2256 2223 18.59 183.43 0.75 0.86
13 A" 1198 1181 0.77 5.60 0.75 0.86
14 A" 710 700 88.85 2.25 0.75 0.86
15 A" 600 591 1.72 0.61 0.75 0.86
16 A" 405 399 8.72 5.84 0.75 0.86
17 A" 370 365 0.26 0.37 0.75 0.86
18 A" 123 122 0.00 11.29 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 9075.5 cm-1
Scaled (by 0.9857) Zero Point Vibrational Energy (zpe) 8945.7 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 PBEPBE/6-31G*
ABC
0.09250 0.09227 0.04636

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBE/6-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.011 -0.062 0.000
C2 -0.011 1.291 0.000
N3 0.151 2.497 0.000
C4 -0.011 -0.765 1.246
C5 -0.011 -0.765 -1.246
N6 -0.011 -1.345 2.270
N7 -0.011 -1.345 -2.270
H8 -0.638 3.156 0.000

Atom - Atom Distances (Å)
  C1 C2 N3 C4 C5 N6 N7 H8
C11.35302.56351.43091.43092.60752.60753.2785
C21.35301.21632.40432.40433.47883.47881.9675
N32.56351.21633.49533.49534.46504.46501.0288
C41.43092.40433.49532.49251.17663.56374.1619
C51.43092.40433.49532.49253.56371.17664.1619
N62.60753.47884.46501.17663.56374.53995.0800
N72.60753.47884.46503.56371.17664.53995.0800
H83.27851.96751.02884.16194.16195.08005.0800

picture of Dicyanoketenimine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N3 172.322 C1 C4 N6 179.895
C1 C5 N7 179.895 C2 C1 C4 119.431
C2 C1 C5 119.431 C2 N3 H8 122.200
C4 C1 C5 121.138
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.012      
2 C 0.460      
3 N -0.606      
4 C 0.343      
5 C 0.343      
6 N -0.451      
7 N -0.451      
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
  -1.376 5.128 0.000 5.309
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -37.393 -4.626 0.000
y -4.626 -33.733 0.000
z 0.000 0.000 -51.053
Traceless
 xyz
x 4.999 -4.626 0.000
y -4.626 10.490 0.000
z 0.000 0.000 -15.490
Polar
3z2-r2-30.980
x2-y2-3.661
xy-4.626
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.622 -0.020 0.000
y -0.020 12.268 0.000
z 0.000 0.000 9.502


<r2> (average value of r2) Å2
<r2> 212.749
(<r2>)1/2 14.586