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

using model chemistry: PBEPBE/STO-3G

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/STO-3G
 hartrees
Energy at 0K-312.748770
Energy at 298.15K 
HF Energy-312.748770
Nuclear repulsion energy205.276365
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/STO-3G
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' 3374 3082 11.88 382.33 0.33 0.49
2 A' 2253 2058 7.03 126.83 0.12 0.21
3 A' 2101 1919 122.63 6.30 0.18 0.31
4 A' 1286 1175 0.72 27.39 0.21 0.35
5 A' 975 891 333.54 22.23 0.66 0.79
6 A' 643 588 0.30 10.21 0.09 0.17
7 A' 577 527 4.67 4.66 0.70 0.82
8 A' 567 518 0.19 0.19 0.65 0.79
9 A' 377 344 9.89 1.37 0.32 0.49
10 A' 168 153 4.32 0.28 0.65 0.78
11 A' 126 115 3.77 6.32 0.73 0.84
12 A" 2235 2042 14.97 115.07 0.75 0.86
13 A" 1169 1068 0.00 4.70 0.75 0.86
14 A" 737 673 67.15 6.67 0.75 0.86
15 A" 587 536 0.03 0.05 0.75 0.86
16 A" 373 341 5.87 1.94 0.75 0.86
17 A" 356 325 1.17 1.43 0.75 0.86
18 A" 122 111 0.01 8.18 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 9011.9 cm-1
Scaled (by 0.9136) Zero Point Vibrational Energy (zpe) 8233.3 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 PBEPBE/STO-3G
ABC
0.08927 0.08724 0.04434

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBE/STO-3G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.031 -0.043 0.000
C2 -0.031 1.324 0.000
N3 0.252 2.559 0.000
C4 -0.031 -0.775 1.264
C5 -0.031 -0.775 -1.264
N6 -0.031 -1.394 2.311
N7 -0.031 -1.394 -2.311
H8 -0.601 3.222 0.000

Atom - Atom Distances (Å)
  C1 C2 N3 C4 C5 N6 N7 H8
C11.36722.61711.46051.46052.67672.67673.3145
C21.36721.26652.45002.45003.56763.56761.9818
N32.61711.26653.57623.57624.58724.58721.0809
C41.46052.45003.57622.52811.21623.62814.2304
C51.46052.45003.57622.52813.62811.21624.2304
N62.67673.56764.58721.21623.62814.62165.1934
N72.67673.56764.58723.62811.21624.62165.1934
H83.31451.98181.08094.23044.23045.19345.1934

picture of Dicyanoketenimine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N3 167.102 C1 C4 N6 179.454
C1 C5 N7 179.454 C2 C1 C4 120.062
C2 C1 C5 120.062 C2 N3 H8 114.951
C4 C1 C5 119.876
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/STO-3G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.047      
2 C 0.164      
3 N -0.213      
4 C 0.075      
5 C 0.075      
6 N -0.146      
7 N -0.146      
8 H 0.240      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.329 4.207 0.000 4.412
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -34.853 -4.374 0.000
y -4.374 -32.328 0.000
z 0.000 0.000 -46.074
Traceless
 xyz
x 4.348 -4.374 0.000
y -4.374 8.135 0.000
z 0.000 0.000 -12.484
Polar
3z2-r2-24.967
x2-y2-2.525
xy-4.374
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.521 -0.062 0.000
y -0.062 9.294 0.000
z 0.000 0.000 6.234


<r2> (average value of r2) Å2
<r2> 219.495
(<r2>)1/2 14.815