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All results from a given calculation for C(CN)4 (tetracyanomethane)

using model chemistry: B2PLYP/6-31+G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes TD 1A1
Energy calculated at B2PLYP/6-31+G**
 hartrees
Energy at 0K-409.051859
Energy at 298.15K-409.050453
HF Energy-408.612036
Nuclear repulsion energy321.357202
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 B2PLYP/6-31+G**
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A1 2299 2189 0.00      
2 A1 584 556 0.00      
3 E 558 532 0.00      
3 E 558 532 0.00      
4 E 109 104 0.00      
4 E 109 104 0.00      
5 T1 329 313 0.00      
5 T1 329 313 0.00      
5 T1 329 313 0.00      
6 T2 2294 2185 14.86      
6 T2 2294 2185 14.86      
6 T2 2294 2185 14.86      
7 T2 1079 1027 39.51      
7 T2 1079 1027 39.51      
7 T2 1079 1027 39.51      
8 T2 547 521 0.03      
8 T2 547 521 0.03      
8 T2 547 521 0.03      
9 T2 144 137 12.70      
9 T2 144 137 12.70      
9 T2 144 137 12.70      

Unscaled Zero Point Vibrational Energy (zpe) 8697.5 cm-1
Scaled (by 0.9524) Zero Point Vibrational Energy (zpe) 8283.5 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 B2PLYP/6-31+G**
ABC
0.05054 0.05054 0.05054

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP/6-31+G**

Point Group is Td

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.000
C2 0.858 0.858 0.858
C3 -0.858 -0.858 0.858
C4 -0.858 0.858 -0.858
C5 0.858 -0.858 -0.858
N6 1.532 1.532 1.532
N7 -1.532 -1.532 1.532
N8 -1.532 1.532 -1.532
N9 1.532 -1.532 -1.532

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 N6 N7 N8 N9
C11.48591.48591.48591.48592.65322.65322.65322.6532
C21.48592.42642.42642.42641.16733.44613.44613.4461
C31.48592.42642.42642.42643.44611.16733.44613.4461
C41.48592.42642.42642.42643.44613.44611.16733.4461
C51.48592.42642.42642.42643.44613.44613.44611.1673
N62.65321.16733.44613.44613.44614.33274.33274.3327
N72.65323.44611.16733.44613.44614.33274.33274.3327
N82.65323.44613.44611.16733.44614.33274.33274.3327
N92.65323.44613.44613.44611.16734.33274.33274.3327

picture of tetracyanomethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N6 180.000 C1 C3 N7 180.000
C1 C4 N8 180.000 C1 C5 N9 180.000
C2 C1 C3 109.471 C2 C1 C4 109.471
C2 C1 C5 109.471 C3 C1 C4 109.471
C3 C1 C5 109.471 C4 C1 C5 109.471
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B2PLYP/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.488      
2 C 0.187      
3 C 0.187      
4 C 0.187      
5 C 0.187      
6 N -0.309      
7 N -0.309      
8 N -0.309      
9 N -0.309      


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


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -58.015 0.000 0.000
y 0.000 -58.015 0.000
z 0.000 0.000 -58.015
Traceless
 xyz
x 0.000 0.000 0.000
y 0.000 0.000 0.000
z 0.000 0.000 0.000
Polar
3z2-r20.000
x2-y20.000
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 9.898 0.000 0.000
y 0.000 9.898 0.000
z 0.000 0.000 9.898


<r2> (average value of r2) Å2
<r2> 286.331
(<r2>)1/2 16.921