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

using model chemistry: QCISD/cc-pVDZ

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/cc-pVDZ
 hartrees
Energy at 0K-316.350647
Energy at 298.15K 
HF Energy-315.361750
Nuclear repulsion energy210.542874
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/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 3095 2969 5.58      
2 A1 2339 2244 0.36      
3 A1 841 807 8.17      
4 A1 570 547 0.04      
5 A1 165 158 19.13      
6 A2 344 330 0.00      
7 E 2339 2244 4.99      
7 E 2339 2244 4.99      
8 E 1304 1251 4.39      
8 E 1304 1251 4.39      
9 E 1043 1001 18.37      
9 E 1043 1001 18.37      
10 E 569 546 0.02      
10 E 569 546 0.02      
11 E 343 329 0.15      
11 E 343 329 0.15      
12 E 131 126 6.34      
12 E 131 126 6.34      

Unscaled Zero Point Vibrational Energy (zpe) 9404.6 cm-1
Scaled (by 0.9594) Zero Point Vibrational Energy (zpe) 9022.7 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 QCISD/cc-pVDZ
ABC
0.09333 0.09333 0.04917

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

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.517
H2 0.000 0.000 1.623
C3 0.000 1.417 0.061
C4 1.227 -0.709 0.061
C5 -1.227 -0.709 0.061
N6 0.000 2.538 -0.277
N7 2.198 -1.269 -0.277
N8 -2.198 -1.269 -0.277

Atom - Atom Distances (Å)
  C1 H2 C3 C4 C5 N6 N7 N8
C11.10631.48891.48891.48892.65912.65912.6591
H21.10632.10962.10962.10963.17063.17063.1706
C31.48892.10962.45482.45481.17033.48713.4871
C41.48892.10962.45482.45483.48711.17033.4871
C51.48892.10962.45482.45483.48713.48711.1703
N62.65913.17061.17033.48713.48714.39554.3955
N72.65913.17063.48711.17033.48714.39554.3955
N82.65913.17063.48713.48711.17034.39554.3955

picture of tricyanomethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C3 N6 178.936 C1 C4 N7 178.936
C1 C5 N8 178.936 H2 C1 C3 107.848
H2 C1 C4 107.848 H2 C1 C5 107.848
C3 C1 C4 111.044 C3 C1 C5 111.044
C4 C1 C5 111.044
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability