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

using model chemistry: QCISD(T)/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 QCISD(T)/cc-pVTZ
 hartrees
Energy at 0K-408.733636
Energy at 298.15K 
HF Energy-407.155780
Nuclear repulsion energy321.943641
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 QCISD(T)/cc-pVTZ
Rotational Constants (cm-1) from geometry optimized at QCISD(T)/cc-pVTZ
ABC
0.05069 0.05069 0.05069

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD(T)/cc-pVTZ

Point Group is Td

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.000
C2 0.858 0.858 0.858
C3 -0.858 -0.858 0.858
C4 -0.858 0.858 -0.858
C5 0.858 -0.858 -0.858
N6 1.529 1.529 1.529
N7 -1.529 -1.529 1.529
N8 -1.529 1.529 -1.529
N9 1.529 -1.529 -1.529

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 N6 N7 N8 N9
C11.48611.48611.48611.48612.64812.64812.64812.6481
C21.48612.42682.42682.42681.16203.44163.44163.4416
C31.48612.42682.42682.42683.44161.16203.44163.4416
C41.48612.42682.42682.42683.44163.44161.16203.4416
C51.48612.42682.42682.42683.44163.44163.44161.1620
N62.64811.16203.44163.44163.44164.32444.32444.3244
N72.64813.44161.16203.44163.44164.32444.32444.3244
N82.64813.44163.44161.16203.44164.32444.32444.3244
N92.64813.44163.44163.44161.16204.32444.32444.3244

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