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

using model chemistry: MP2=FULL/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 MP2=FULL/cc-pVDZ
 hartrees
Energy at 0K-408.334174
Energy at 298.15K-408.332776
HF Energy-407.042526
Nuclear repulsion energy319.164756
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/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 2159 2052 0.00      
2 A1 588 559 0.00      
3 E 557 530 0.00      
3 E 557 530 0.00      
4 E 109 104 0.00      
4 E 109 104 0.00      
5 T1 330 313 0.00      
5 T1 330 313 0.00      
5 T1 330 313 0.00      
6 T2 2166 2059 31.18      
6 T2 2166 2059 31.18      
6 T2 2166 2059 31.18      
7 T2 1089 1035 27.74      
7 T2 1089 1035 27.74      
7 T2 1089 1035 27.74      
8 T2 545 518 0.24      
8 T2 545 518 0.24      
8 T2 545 518 0.24      
9 T2 141 134 10.74      
9 T2 141 134 10.74      
9 T2 141 134 10.74      

Unscaled Zero Point Vibrational Energy (zpe) 8446.1 cm-1
Scaled (by 0.9504) Zero Point Vibrational Energy (zpe) 8027.2 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/cc-pVDZ
ABC
0.04995 0.04995 0.04995

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

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 1.543 1.543 1.543
N7 -1.543 -1.543 1.543
N8 -1.543 1.543 -1.543
N9 1.543 -1.543 -1.543

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 N6 N7 N8 N9
C11.48641.48641.48641.48642.67302.67302.67302.6730
C21.48642.42732.42732.42731.18653.46453.46453.4645
C31.48642.42732.42732.42733.46451.18653.46453.4645
C41.48642.42732.42732.42733.46453.46451.18653.4645
C51.48642.42732.42732.42733.46453.46453.46451.1865
N62.67301.18653.46453.46453.46454.36494.36494.3649
N72.67303.46451.18653.46453.46454.36494.36494.3649
N82.67303.46453.46451.18653.46454.36494.36494.3649
N92.67303.46453.46453.46451.18654.36494.36494.3649

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