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

using model chemistry: TPSSh/cc-pVTZ

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/cc-pVTZ
 hartrees
Energy at 0K-409.542963
Energy at 298.15K-409.541636
HF Energy-409.542963
Nuclear repulsion energy323.418039
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/cc-pVTZ
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 2354 2279 0.00      
2 A1 579 561 0.00      
3 E 566 548 0.00      
3 E 566 548 0.00      
4 E 109 106 0.00      
4 E 109 106 0.00      
5 T1 342 331 0.00      
5 T1 342 331 0.00      
5 T1 342 331 0.00      
6 T2 2345 2270 8.17      
6 T2 2345 2270 8.17      
6 T2 2345 2270 8.17      
7 T2 1053 1019 33.45      
7 T2 1053 1019 33.45      
7 T2 1053 1019 33.45      
8 T2 551 533 0.01      
8 T2 551 533 0.01      
8 T2 551 533 0.01      
9 T2 144 139 12.36      
9 T2 144 139 12.36      
9 T2 144 139 12.36      

Unscaled Zero Point Vibrational Energy (zpe) 8792.5 cm-1
Scaled (by 0.9683) Zero Point Vibrational Energy (zpe) 8513.7 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/cc-pVTZ
ABC
0.05113 0.05113 0.05113

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

Point Group is Td

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.000
C2 0.856 0.856 0.856
C3 -0.856 -0.856 0.856
C4 -0.856 0.856 -0.856
C5 0.856 -0.856 -0.856
N6 1.522 1.522 1.522
N7 -1.522 -1.522 1.522
N8 -1.522 1.522 -1.522
N9 1.522 -1.522 -1.522

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 N6 N7 N8 N9
C11.48311.48311.48311.48312.63542.63542.63542.6354
C21.48312.42192.42192.42191.15223.42793.42793.4279
C31.48312.42192.42192.42193.42791.15223.42793.4279
C41.48312.42192.42192.42193.42793.42791.15223.4279
C51.48312.42192.42192.42193.42793.42793.42791.1522
N62.63541.15223.42793.42793.42794.30354.30354.3035
N72.63543.42791.15223.42793.42794.30354.30354.3035
N82.63543.42793.42791.15223.42794.30354.30354.3035
N92.63543.42793.42793.42791.15224.30354.30354.3035

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/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.052      
2 C 0.008      
3 C 0.008      
4 C 0.008      
5 C 0.008      
6 N -0.021      
7 N -0.021      
8 N -0.021      
9 N -0.021      


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 9.746 0.000 0.000
y 0.000 9.746 0.000
z 0.000 0.000 9.746


<r2> (average value of r2) Å2
<r2> 282.595
(<r2>)1/2 16.811