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

using model chemistry: MP2=FULL/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 MP2=FULL/STO-3G
 hartrees
Energy at 0K-402.561822
Energy at 298.15K-402.559990
HF Energy-401.789498
Nuclear repulsion energy308.846995
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 MP2=FULL/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 2045 1817 0.00      
2 A1 570 507 0.00      
3 E 569 506 0.00      
3 E 569 506 0.00      
4 E 110 98 0.00      
4 E 110 98 0.00      
5 T1 345 307 0.00      
5 T1 345 307 0.00      
5 T1 345 307 0.00      
6 T2 2050 1822 94.87      
6 T2 2050 1822 94.87      
6 T2 2050 1822 94.87      
7 T2 1101 978 12.87      
7 T2 1101 978 12.87      
7 T2 1101 978 12.87      
8 T2 557 495 0.17      
8 T2 557 495 0.17      
8 T2 557 495 0.17      
9 T2 142 126 7.78      
9 T2 142 126 7.78      
9 T2 142 126 7.78      

Unscaled Zero Point Vibrational Energy (zpe) 8278.0 cm-1
Scaled (by 0.8889) Zero Point Vibrational Energy (zpe) 7358.3 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 MP2=FULL/STO-3G
ABC
0.04682 0.04682 0.04682

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/STO-3G

Point Group is Td

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.000
C2 0.883 0.883 0.883
C3 -0.883 -0.883 0.883
C4 -0.883 0.883 -0.883
C5 0.883 -0.883 -0.883
N6 1.595 1.595 1.595
N7 -1.595 -1.595 1.595
N8 -1.595 1.595 -1.595
N9 1.595 -1.595 -1.595

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 N6 N7 N8 N9
C11.52971.52971.52971.52972.76342.76342.76342.7634
C21.52972.49802.49802.49801.23373.57693.57693.5769
C31.52972.49802.49802.49803.57691.23373.57693.5769
C41.52972.49802.49802.49803.57693.57691.23373.5769
C51.52972.49802.49802.49803.57693.57693.57691.2337
N62.76341.23373.57693.57693.57694.51264.51264.5126
N72.76343.57691.23373.57693.57694.51264.51264.5126
N82.76343.57693.57691.23373.57694.51264.51264.5126
N92.76343.57693.57693.57691.23374.51264.51264.5126

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