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

using model chemistry: B3PW91/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 B3PW91/STO-3G
 hartrees
Energy at 0K-312.988667
Energy at 298.15K 
HF Energy-312.988667
Nuclear repulsion energy206.935574
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 B3PW91/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' 3507 3104 33.73 346.06 0.32 0.49
2 A' 2371 2098 3.53 122.98 0.11 0.20
3 A' 2186 1934 170.42 8.05 0.17 0.28
4 A' 1341 1186 0.62 32.31 0.22 0.36
5 A' 985 872 366.66 22.53 0.67 0.80
6 A' 662 586 0.31 8.31 0.09 0.17
7 A' 613 542 7.34 6.43 0.71 0.83
8 A' 591 523 0.06 0.06 0.56 0.71
9 A' 402 356 13.93 1.65 0.39 0.56
10 A' 176 156 5.62 0.35 0.68 0.81
11 A' 133 118 4.53 5.88 0.72 0.84
12 A" 2358 2087 12.65 109.27 0.75 0.86
13 A" 1217 1077 0.24 6.24 0.75 0.86
14 A" 770 682 71.18 6.18 0.75 0.86
15 A" 616 545 0.05 0.33 0.75 0.86
16 A" 393 348 6.33 2.56 0.75 0.86
17 A" 380 336 0.96 1.19 0.75 0.86
18 A" 129 114 0.01 7.92 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 9413.7 cm-1
Scaled (by 0.885) Zero Point Vibrational Energy (zpe) 8331.1 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 B3PW91/STO-3G
ABC
0.09031 0.08879 0.04498

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/STO-3G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.022 -0.043 0.000
C2 -0.022 1.311 0.000
N3 0.213 2.542 0.000
C4 -0.022 -0.773 1.260
C5 -0.022 -0.773 -1.260
N6 -0.022 -1.379 2.296
N7 -0.022 -1.379 -2.296
H8 -0.649 3.177 0.000

Atom - Atom Distances (Å)
  C1 C2 N3 C4 C5 N6 N7 H8
C11.35432.59631.45621.45622.65632.65633.2809
C21.35431.25362.43542.43543.53643.53641.9686
N32.59631.25363.55463.55464.54984.54981.0706
C41.45622.43543.55462.52031.20013.60764.1934
C51.45622.43543.55462.52033.60761.20014.1934
N62.65633.53644.54981.20013.60764.59265.1400
N72.65633.53644.54983.60761.20014.59265.1400
H83.28091.96861.07064.19344.19345.14005.1400

picture of Dicyanoketenimine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N3 169.192 C1 C4 N6 179.778
C1 C5 N7 179.778 C2 C1 C4 120.075
C2 C1 C5 120.075 C2 N3 H8 115.557
C4 C1 C5 119.850
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/STO-3G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.048      
2 C 0.183      
3 N -0.230      
4 C 0.080      
5 C 0.080      
6 N -0.154      
7 N -0.154      
8 H 0.245      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.426 4.228 0.000 4.462
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -34.656 -4.608 0.000
y -4.608 -33.003 0.000
z 0.000 0.000 -46.671
Traceless
 xyz
x 5.181 -4.608 0.000
y -4.608 7.660 0.000
z 0.000 0.000 -12.841
Polar
3z2-r2-25.682
x2-y2-1.653
xy-4.608
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.480 -0.138 0.000
y -0.138 8.928 0.000
z 0.000 0.000 5.770


<r2> (average value of r2) Å2
<r2> 216.874
(<r2>)1/2 14.727