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

using model chemistry: PBEPBE/Def2TZVPP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes TD 1A1
Energy calculated at PBEPBE/Def2TZVPP
 hartrees
Energy at 0K-409.076715
Energy at 298.15K-409.075266
HF Energy-409.076715
Nuclear repulsion energy322.040817
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/Def2TZVPP
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 2290 2262 0.00      
2 A1 572 565 0.00      
3 E 550 543 0.00      
3 E 550 543 0.00      
4 E 108 106 0.00      
4 E 108 106 0.00      
5 T1 335 331 0.00      
5 T1 335 331 0.00      
5 T1 335 331 0.00      
6 T2 2281 2253 10.25      
6 T2 2281 2253 10.25      
6 T2 2281 2253 10.25      
7 T2 1030 1017 26.81      
7 T2 1030 1017 26.81      
7 T2 1030 1017 26.81      
8 T2 537 531 0.00      
8 T2 537 531 0.00      
8 T2 537 531 0.00      
9 T2 142 140 11.56      
9 T2 142 140 11.56      
9 T2 142 140 11.56      

Unscaled Zero Point Vibrational Energy (zpe) 8575.4 cm-1
Scaled (by 0.9879) Zero Point Vibrational Energy (zpe) 8471.6 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/Def2TZVPP
ABC
0.05072 0.05072 0.05072

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBE/Def2TZVPP

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 1.525 1.525 1.525
N7 -1.525 -1.525 1.525
N8 -1.525 1.525 -1.525
N9 1.525 -1.525 -1.525

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 N6 N7 N8 N9
C11.48561.48561.48561.48562.64222.64222.64222.6422
C21.48562.42592.42592.42591.15663.43583.43583.4358
C31.48562.42592.42592.42593.43581.15663.43583.4358
C41.48562.42592.42592.42593.43583.43581.15663.4358
C51.48562.42592.42592.42593.43583.43583.43581.1566
N62.64221.15663.43583.43583.43584.31464.31464.3146
N72.64223.43581.15663.43583.43584.31464.31464.3146
N82.64223.43583.43581.15663.43584.31464.31464.3146
N92.64223.43583.43583.43581.15664.31464.31464.3146

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 PBEPBE/Def2TZVPP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.779      
2 C -0.322      
3 C -0.322      
4 C -0.322      
5 C -0.322      
6 N 0.127      
7 N 0.127      
8 N 0.127      
9 N 0.127      


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 -56.944 0.000 0.000
y 0.000 -56.944 0.000
z 0.000 0.000 -56.944
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 10.352 0.000 0.000
y 0.000 10.352 0.000
z 0.000 0.000 10.352


<r2> (average value of r2) Å2
<r2> 284.776
(<r2>)1/2 16.875