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All results from a given calculation for CH(CN)3 (tricyanomethane)

using model chemistry: QCISD/6-31G(2df,p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 1A1
Energy calculated at QCISD/6-31G(2df,p)
 hartrees
Energy at 0K-316.497061
Energy at 298.15K 
HF Energy-315.366886
Nuclear repulsion energy212.515524
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/6-31G(2df,p)
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 3103 2940 8.95      
2 A1 2373 2249 0.27      
3 A1 850 805 5.32      
4 A1 576 545 0.66      
5 A1 170 161 24.26      
6 A2 355 337 0.00      
7 E 2372 2247 3.67      
7 E 2372 2247 3.67      
8 E 1318 1249 3.10      
8 E 1318 1249 3.10      
9 E 1047 992 16.99      
9 E 1047 992 16.99      
10 E 577 547 0.09      
10 E 577 547 0.09      
11 E 357 338 0.55      
11 E 357 338 0.55      
12 E 134 127 7.80      
12 E 134 127 7.80      

Unscaled Zero Point Vibrational Energy (zpe) 9517.3 cm-1
Scaled (by 0.9474) Zero Point Vibrational Energy (zpe) 9016.6 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 QCISD/6-31G(2df,p)
ABC
0.09506 0.09506 0.05008

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD/6-31G(2df,p)

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.513
H2 0.000 0.000 1.609
C3 0.000 1.405 0.059
C4 1.217 -0.703 0.059
C5 -1.217 -0.703 0.059
N6 0.000 2.514 -0.274
N7 2.177 -1.257 -0.274
N8 -2.177 -1.257 -0.274

Atom - Atom Distances (Å)
  C1 H2 C3 C4 C5 N6 N7 N8
C11.09591.47691.47691.47692.63462.63462.6346
H21.09592.09222.09222.09223.14133.14133.1413
C31.47692.09222.43412.43411.15783.45553.4555
C41.47692.09222.43412.43413.45551.15783.4555
C51.47692.09222.43412.43413.45553.45551.1578
N62.63463.14131.15783.45553.45554.35474.3547
N72.63463.14133.45551.15783.45554.35474.3547
N82.63463.14133.45553.45551.15784.35474.3547

picture of tricyanomethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C3 N6 178.819 C1 C4 N7 178.819
C1 C5 N8 178.819 H2 C1 C3 107.906
H2 C1 C4 107.906 H2 C1 C5 107.906
C3 C1 C4 110.990 C3 C1 C5 110.990
C4 C1 C5 110.990
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability