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

using model chemistry: PBE1PBE/6-311G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes TD 1A1
Energy calculated at PBE1PBE/6-311G*
 hartrees
Energy at 0K-409.010442
Energy at 298.15K-409.009251
HF Energy-409.010442
Nuclear repulsion energy324.513979
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 PBE1PBE/6-311G*
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 2414 2314 0.00      
2 A1 595 571 0.00      
3 E 585 561 0.00      
3 E 585 561 0.00      
4 E 114 109 0.00      
4 E 114 109 0.00      
5 T1 356 341 0.00      
5 T1 356 341 0.00      
5 T1 356 341 0.00      
6 T2 2407 2307 6.76      
6 T2 2407 2307 6.76      
6 T2 2407 2307 6.76      
7 T2 1098 1052 33.76      
7 T2 1098 1052 33.76      
7 T2 1098 1052 33.76      
8 T2 563 540 0.04      
8 T2 563 540 0.04      
8 T2 563 540 0.04      
9 T2 149 143 12.61      
9 T2 149 143 12.61      
9 T2 149 143 12.61      

Unscaled Zero Point Vibrational Energy (zpe) 9063.4 cm-1
Scaled (by 0.9585) Zero Point Vibrational Energy (zpe) 8687.3 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 PBE1PBE/6-311G*
ABC
0.05148 0.05148 0.05148

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBE1PBE/6-311G*

Point Group is Td

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.000
C2 0.853 0.853 0.853
C3 -0.853 -0.853 0.853
C4 -0.853 0.853 -0.853
C5 0.853 -0.853 -0.853
N6 1.516 1.516 1.516
N7 -1.516 -1.516 1.516
N8 -1.516 1.516 -1.516
N9 1.516 -1.516 -1.516

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 N6 N7 N8 N9
C11.47731.47731.47731.47732.62662.62662.62662.6266
C21.47732.41252.41252.41251.14923.41593.41593.4159
C31.47732.41252.41252.41253.41591.14923.41593.4159
C41.47732.41252.41252.41253.41593.41591.14923.4159
C51.47732.41252.41252.41253.41593.41593.41591.1492
N62.62661.14923.41593.41593.41594.28924.28924.2892
N72.62663.41591.14923.41593.41594.28924.28924.2892
N82.62663.41593.41591.14923.41594.28924.28924.2892
N92.62663.41593.41593.41591.14924.28924.28924.2892

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 PBE1PBE/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.328      
2 C 0.275      
3 C 0.275      
4 C 0.275      
5 C 0.275      
6 N -0.193      
7 N -0.193      
8 N -0.193      
9 N -0.193      


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 -56.604 0.000 0.000
y 0.000 -56.604 0.000
z 0.000 0.000 -56.604
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 8.868 0.000 0.000
y 0.000 8.868 0.000
z 0.000 0.000 8.868


<r2> (average value of r2) Å2
<r2> 280.903
(<r2>)1/2 16.760