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

using model chemistry: B2PLYP/cc-pVDZ

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/cc-pVDZ
 hartrees
Energy at 0K-409.064043
Energy at 298.15K-409.062736
HF Energy-408.633674
Nuclear repulsion energy320.956597
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/cc-pVDZ
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 2294 2197 0.00      
2 A1 588 563 0.00      
3 E 566 542 0.00      
3 E 566 542 0.00      
4 E 112 107 0.00      
4 E 112 107 0.00      
5 T1 339 325 0.00      
5 T1 339 325 0.00      
5 T1 339 325 0.00      
6 T2 2291 2194 14.67      
6 T2 2291 2194 14.67      
6 T2 2291 2194 14.67      
7 T2 1083 1037 35.05      
7 T2 1083 1037 35.05      
7 T2 1083 1037 35.05      
8 T2 552 529 0.04      
8 T2 552 529 0.04      
8 T2 552 529 0.04      
9 T2 146 140 11.06      
9 T2 146 140 11.06      
9 T2 146 140 11.06      

Unscaled Zero Point Vibrational Energy (zpe) 8734.7 cm-1
Scaled (by 0.9577) Zero Point Vibrational Energy (zpe) 8365.2 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/cc-pVDZ
ABC
0.05042 0.05042 0.05042

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP/cc-pVDZ

Point Group is Td

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.000
C2 0.859 0.859 0.859
C3 -0.859 -0.859 0.859
C4 -0.859 0.859 -0.859
C5 0.859 -0.859 -0.859
N6 1.534 1.534 1.534
N7 -1.534 -1.534 1.534
N8 -1.534 1.534 -1.534
N9 1.534 -1.534 -1.534

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 N6 N7 N8 N9
C11.48771.48771.48771.48772.65652.65652.65652.6565
C21.48772.42932.42932.42931.16893.45043.45043.4504
C31.48772.42932.42932.42933.45041.16893.45043.4504
C41.48772.42932.42932.42933.45043.45041.16893.4504
C51.48772.42932.42932.42933.45043.45043.45041.1689
N62.65651.16893.45043.45043.45044.33814.33814.3381
N72.65653.45041.16893.45043.45044.33814.33814.3381
N82.65653.45043.45041.16893.45044.33814.33814.3381
N92.65653.45043.45043.45041.16894.33814.33814.3381

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/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.253      
2 C 0.093      
3 C 0.093      
4 C 0.093      
5 C 0.093      
6 N -0.030      
7 N -0.030      
8 N -0.030      
9 N -0.030      


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 -56.370 0.000 0.000
y 0.000 -56.370 0.000
z 0.000 0.000 -56.370
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 8.592 0.000 0.000
y 0.000 8.592 0.000
z 0.000 0.000 8.592


<r2> (average value of r2) Å2
<r2> 285.924
(<r2>)1/2 16.909