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

using model chemistry: B1B95/6-31G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes TD 1A1
Energy calculated at B1B95/6-31G
 hartrees
Energy at 0K-409.107804
Energy at 298.15K-409.106629
HF Energy-409.107804
Nuclear repulsion energy322.215636
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 B1B95/6-31G
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 2377 2267 0.00      
2 A1 594 567 0.00      
3 E 580 554 0.00      
3 E 580 554 0.00      
4 E 116 110 0.00      
4 E 116 110 0.00      
5 T1 358 342 0.00      
5 T1 358 342 0.00      
5 T1 358 342 0.00      
6 T2 2369 2260 4.46      
6 T2 2369 2260 4.46      
6 T2 2369 2260 4.46      
7 T2 1086 1036 42.01      
7 T2 1086 1036 42.01      
7 T2 1086 1036 42.01      
8 T2 570 544 0.27      
8 T2 570 544 0.27      
8 T2 570 544 0.27      
9 T2 151 144 10.28      
9 T2 151 144 10.28      
9 T2 151 144 10.28      

Unscaled Zero Point Vibrational Energy (zpe) 8984.0 cm-1
Scaled (by 0.9537) Zero Point Vibrational Energy (zpe) 8568.1 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 B1B95/6-31G
ABC
0.05082 0.05082 0.05082

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/6-31G

Point Group is Td

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.000
C2 0.855 0.855 0.855
C3 -0.855 -0.855 0.855
C4 -0.855 0.855 -0.855
C5 0.855 -0.855 -0.855
N6 1.528 1.528 1.528
N7 -1.528 -1.528 1.528
N8 -1.528 1.528 -1.528
N9 1.528 -1.528 -1.528

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 N6 N7 N8 N9
C11.48121.48121.48121.48122.64632.64632.64632.6463
C21.48122.41882.41882.41881.16503.43653.43653.4365
C31.48122.41882.41882.41883.43651.16503.43653.4365
C41.48122.41882.41882.41883.43653.43651.16503.4365
C51.48122.41882.41882.41883.43653.43653.43651.1650
N62.64631.16503.43653.43653.43654.32134.32134.3213
N72.64633.43651.16503.43653.43654.32134.32134.3213
N82.64633.43653.43651.16503.43654.32134.32134.3213
N92.64633.43653.43653.43651.16504.32134.32134.3213

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 B1B95/6-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.214      
2 C 0.237      
3 C 0.237      
4 C 0.237      
5 C 0.237      
6 N -0.183      
7 N -0.183      
8 N -0.183      
9 N -0.183      


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 -57.029 0.000 0.000
y 0.000 -57.029 0.000
z 0.000 0.000 -57.029
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 8.297 0.000 0.000
y 0.000 8.297 0.000
z 0.000 0.000 8.297


<r2> (average value of r2) Å2
<r2> 284.349
(<r2>)1/2 16.863