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

using model chemistry: B2PLYP/STO-3G

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/STO-3G
 hartrees
Energy at 0K-403.618947
Energy at 298.15K-403.617159
HF Energy-403.355187
Nuclear repulsion energy311.988718
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/STO-3G
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 2264 2264 0.00      
2 A1 577 577 0.00      
3 E 569 569 0.00      
3 E 569 569 0.00      
4 E 111 111 0.00      
4 E 111 111 0.00      
5 T1 352 352 0.00      
5 T1 352 352 0.00      
5 T1 352 352 0.00      
6 T2 2255 2255 75.03      
6 T2 2255 2255 75.03      
6 T2 2255 2255 75.03      
7 T2 1095 1095 22.49      
7 T2 1095 1095 22.49      
7 T2 1095 1095 22.49      
8 T2 558 558 0.02      
8 T2 558 558 0.02      
8 T2 558 558 0.02      
9 T2 144 144 7.67      
9 T2 144 144 7.67      
9 T2 144 144 7.67      

Unscaled Zero Point Vibrational Energy (zpe) 8706.5 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 8706.5 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/STO-3G
ABC
0.04769 0.04769 0.04769

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP/STO-3G

Point Group is Td

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.000
C2 0.880 0.880 0.880
C3 -0.880 -0.880 0.880
C4 -0.880 0.880 -0.880
C5 0.880 -0.880 -0.880
N6 1.578 1.578 1.578
N7 -1.578 -1.578 1.578
N8 -1.578 1.578 -1.578
N9 1.578 -1.578 -1.578

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 N6 N7 N8 N9
C11.52471.52471.52471.52472.73382.73382.73382.7338
C21.52472.48992.48992.48991.20903.54643.54643.5464
C31.52472.48992.48992.48993.54641.20903.54643.5464
C41.52472.48992.48992.48993.54643.54641.20903.5464
C51.52472.48992.48992.48993.54643.54643.54641.2090
N62.73381.20903.54643.54643.54644.46424.46424.4642
N72.73383.54641.20903.54643.54644.46424.46424.4642
N82.73383.54643.54641.20903.54644.46424.46424.4642
N92.73383.54643.54643.54641.20904.46424.46424.4642

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/STO-3G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.054      
2 C 0.091      
3 C 0.091      
4 C 0.091      
5 C 0.091      
6 N -0.105      
7 N -0.105      
8 N -0.105      
9 N -0.105      


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 -52.403 0.000 0.000
y 0.000 -52.403 0.000
z 0.000 0.000 -52.403
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 5.161 0.000 0.000
y 0.000 5.161 0.000
z 0.000 0.000 5.161


<r2> (average value of r2) Å2
<r2> 297.783
(<r2>)1/2 17.256