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

using model chemistry: CCSD=FULL/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 CCSD=FULL/6-31G*
 hartrees
Energy at 0K-408.336063
Energy at 298.15K-408.334766
HF Energy-407.026974
Nuclear repulsion energy321.602970
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 CCSD=FULL/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 2380 2261 0.00      
2 A1 592 562 0.00      
3 E 576 547 0.00      
3 E 576 547 0.00      
4 E 113 108 0.00      
4 E 113 108 0.00      
5 T1 339 322 0.00      
5 T1 339 322 0.00      
5 T1 339 322 0.00      
6 T2 2377 2258 13.35      
6 T2 2377 2258 13.35      
6 T2 2377 2258 13.35      
7 T2 1118 1061 35.12      
7 T2 1118 1061 35.12      
7 T2 1118 1061 35.12      
8 T2 560 532 0.01      
8 T2 560 532 0.01      
8 T2 560 532 0.01      
9 T2 149 141 13.23      
9 T2 149 141 13.23      
9 T2 149 141 13.23      

Unscaled Zero Point Vibrational Energy (zpe) 8987.8 cm-1
Scaled (by 0.9498) Zero Point Vibrational Energy (zpe) 8536.7 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 CCSD=FULL/6-31G*
ABC
0.05060 0.05060 0.05060

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

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 1.530 1.530 1.530
N7 -1.530 -1.530 1.530
N8 -1.530 1.530 -1.530
N9 1.530 -1.530 -1.530

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 N6 N7 N8 N9
C11.48681.48681.48681.48682.65092.65092.65092.6509
C21.48682.42802.42802.42801.16413.44463.44463.4446
C31.48682.42802.42802.42803.44461.16413.44463.4446
C41.48682.42802.42802.42803.44463.44461.16413.4446
C51.48682.42802.42802.42803.44463.44463.44461.1641
N62.65091.16413.44463.44463.44464.32894.32894.3289
N72.65093.44461.16413.44463.44464.32894.32894.3289
N82.65093.44463.44461.16413.44464.32894.32894.3289
N92.65093.44463.44463.44461.16414.32894.32894.3289

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