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

using model chemistry: B3PW91/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 B3PW91/cc-pVDZ
 hartrees
Energy at 0K-409.246930
Energy at 298.15K-409.245685
HF Energy-409.246930
Nuclear repulsion energy322.559546
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/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 2391 2308 0.00      
2 A1 592 572 0.00      
3 E 572 552 0.00      
3 E 572 552 0.00      
4 E 112 108 0.00      
4 E 112 108 0.00      
5 T1 349 337 0.00      
5 T1 349 337 0.00      
5 T1 349 337 0.00      
6 T2 2384 2301 5.93      
6 T2 2384 2301 5.93      
6 T2 2384 2301 5.93      
7 T2 1087 1049 34.64      
7 T2 1087 1049 34.64      
7 T2 1087 1049 34.64      
8 T2 556 536 0.00      
8 T2 556 536 0.00      
8 T2 556 536 0.00      
9 T2 148 142 11.21      
9 T2 148 142 11.21      
9 T2 148 142 11.21      

Unscaled Zero Point Vibrational Energy (zpe) 8962.1 cm-1
Scaled (by 0.965) Zero Point Vibrational Energy (zpe) 8648.4 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/cc-pVDZ
ABC
0.05089 0.05089 0.05089

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/cc-pVDZ

Point Group is Td

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.000
C2 0.857 0.857 0.857
C3 -0.857 -0.857 0.857
C4 -0.857 0.857 -0.857
C5 0.857 -0.857 -0.857
N6 1.526 1.526 1.526
N7 -1.526 -1.526 1.526
N8 -1.526 1.526 -1.526
N9 1.526 -1.526 -1.526

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 N6 N7 N8 N9
C11.48371.48371.48371.48372.64282.64282.64282.6428
C21.48372.42282.42282.42281.15923.43513.43513.4351
C31.48372.42282.42282.42283.43511.15923.43513.4351
C41.48372.42282.42282.42283.43513.43511.15923.4351
C51.48372.42282.42282.42283.43513.43513.43511.1592
N62.64281.15923.43513.43513.43514.31584.31584.3158
N72.64283.43511.15923.43513.43514.31584.31584.3158
N82.64283.43513.43511.15923.43514.31584.31584.3158
N92.64283.43513.43513.43511.15924.31584.31584.3158

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 B3PW91/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.312      
2 C 0.140      
3 C 0.140      
4 C 0.140      
5 C 0.140      
6 N -0.062      
7 N -0.062      
8 N -0.062      
9 N -0.062      


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 -55.801 0.000 0.000
y 0.000 -55.801 0.000
z 0.000 0.000 -55.801
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 8.738 0.000 0.000
y 0.000 8.738 0.000
z 0.000 0.000 8.738


<r2> (average value of r2) Å2
<r2> 283.253
(<r2>)1/2 16.830