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

using model chemistry: LSDA/aug-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 LSDA/aug-cc-pVDZ
 hartrees
Energy at 0K-407.087619
Energy at 298.15K-407.086112
HF Energy-407.087619
Nuclear repulsion energy323.535031
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 LSDA/aug-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 2328 2302 0.00      
2 A1 591 584 0.00      
3 E 540 534 0.00      
3 E 540 534 0.00      
4 E 103 102 0.00      
4 E 103 102 0.00      
5 T1 325 321 0.00      
5 T1 325 321 0.00      
5 T1 325 321 0.00      
6 T2 2324 2297 9.06      
6 T2 2324 2297 9.06      
6 T2 2324 2297 9.06      
7 T2 1073 1061 21.46      
7 T2 1073 1061 21.46      
7 T2 1073 1061 21.46      
8 T2 529 523 0.00      
8 T2 529 523 0.00      
8 T2 529 523 0.00      
9 T2 136 135 12.24      
9 T2 136 135 12.24      
9 T2 136 135 12.24      

Unscaled Zero Point Vibrational Energy (zpe) 8681.5 cm-1
Scaled (by 0.9887) Zero Point Vibrational Energy (zpe) 8583.4 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 LSDA/aug-cc-pVDZ
ABC
0.05127 0.05127 0.05127

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

Point Group is Td

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.000
C2 0.850 0.850 0.850
C3 -0.850 -0.850 0.850
C4 -0.850 0.850 -0.850
C5 0.850 -0.850 -0.850
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
C11.47201.47201.47201.47202.63592.63592.63592.6359
C21.47202.40382.40382.40381.16393.42083.42083.4208
C31.47202.40382.40382.40383.42081.16393.42083.4208
C41.47202.40382.40382.40383.42083.42081.16393.4208
C51.47202.40382.40382.40383.42083.42083.42081.1639
N62.63591.16393.42083.42083.42084.30454.30454.3045
N72.63593.42081.16393.42083.42084.30454.30454.3045
N82.63593.42083.42081.16393.42084.30454.30454.3045
N92.63593.42083.42083.42081.16394.30454.30454.3045

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 LSDA/aug-cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 1.429      
2 C -0.292      
3 C -0.292      
4 C -0.292      
5 C -0.292      
6 N -0.065      
7 N -0.065      
8 N -0.065      
9 N -0.065      


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 -57.186 0.000 0.000
y 0.000 -57.186 0.000
z 0.000 0.000 -57.186
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 10.877 0.000 0.000
y 0.000 10.877 0.000
z 0.000 0.000 10.877


<r2> (average value of r2) Å2
<r2> 282.270
(<r2>)1/2 16.801