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

using model chemistry: TPSSh/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 TPSSh/6-311G*
 hartrees
Energy at 0K-409.505124
Energy at 298.15K-409.503804
HF Energy-409.505124
Nuclear repulsion energy323.000614
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 TPSSh/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 2355 2268 0.00      
2 A1 581 560 0.00      
3 E 570 549 0.00      
3 E 570 549 0.00      
4 E 111 107 0.00      
4 E 111 107 0.00      
5 T1 346 334 0.00      
5 T1 346 334 0.00      
5 T1 346 334 0.00      
6 T2 2347 2260 8.43      
6 T2 2347 2260 8.43      
6 T2 2347 2260 8.43      
7 T2 1057 1018 36.93      
7 T2 1057 1018 36.93      
7 T2 1057 1018 36.93      
8 T2 551 531 0.01      
8 T2 551 531 0.01      
8 T2 551 531 0.01      
9 T2 146 140 11.81      
9 T2 146 140 11.81      
9 T2 146 140 11.81      

Unscaled Zero Point Vibrational Energy (zpe) 8818.9 cm-1
Scaled (by 0.9632) Zero Point Vibrational Energy (zpe) 8494.3 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 TPSSh/6-311G*
ABC
0.05100 0.05100 0.05100

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

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 1.524 1.524 1.524
N7 -1.524 -1.524 1.524
N8 -1.524 1.524 -1.524
N9 1.524 -1.524 -1.524

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 N6 N7 N8 N9
C11.48401.48401.48401.48402.63892.63892.63892.6389
C21.48402.42332.42332.42331.15503.43173.43173.4317
C31.48402.42332.42332.42333.43171.15503.43173.4317
C41.48402.42332.42332.42333.43173.43171.15503.4317
C51.48402.42332.42332.42333.43173.43173.43171.1550
N62.63891.15503.43173.43173.43174.30934.30934.3093
N72.63893.43171.15503.43173.43174.30934.30934.3093
N82.63893.43173.43171.15503.43174.30934.30934.3093
N92.63893.43173.43173.43171.15504.30934.30934.3093

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 TPSSh/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.255      
2 C 0.283      
3 C 0.283      
4 C 0.283      
5 C 0.283      
6 N -0.219      
7 N -0.219      
8 N -0.219      
9 N -0.219      


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


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 9.101 0.000 0.000
y 0.000 9.101 0.000
z 0.000 0.000 9.101


<r2> (average value of r2) Å2
<r2> 283.152
(<r2>)1/2 16.827