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

using model chemistry: QCISD/cc-pVTZ

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-pVTZ
 hartrees
Energy at 0K-316.611023
Energy at 298.15K 
HF Energy-315.444622
Nuclear repulsion energy212.816089
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-pVTZ
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 3090 2953 9.15      
2 A1 2361 2256 0.32      
3 A1 848 810 6.97      
4 A1 574 549 0.31      
5 A1 167 159 23.43      
6 A2 350 334 0.00      
7 E 2360 2255 3.70      
7 E 2360 2255 3.70      
8 E 1319 1260 3.49      
8 E 1319 1260 3.49      
9 E 1046 1000 17.47      
9 E 1046 1000 17.47      
10 E 579 553 0.02      
10 E 579 553 0.02      
11 E 348 333 0.35      
11 E 348 333 0.35      
12 E 133 127 7.51      
12 E 133 127 7.51      

Unscaled Zero Point Vibrational Energy (zpe) 9479.5 cm-1
Scaled (by 0.9555) Zero Point Vibrational Energy (zpe) 9057.6 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/cc-pVTZ
ABC
0.09526 0.09526 0.05016

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

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.510
H2 0.000 0.000 1.603
C3 0.000 1.405 0.058
C4 1.217 -0.703 0.058
C5 -1.217 -0.703 0.058
N6 0.000 2.511 -0.272
N7 2.175 -1.256 -0.272
N8 -2.175 -1.256 -0.272

Atom - Atom Distances (Å)
  C1 H2 C3 C4 C5 N6 N7 N8
C11.09261.47631.47631.47632.63052.63052.6305
H21.09262.08832.08832.08833.13433.13433.1343
C31.47632.08832.43432.43431.15433.45273.4527
C41.47632.08832.43432.43433.45271.15433.4527
C51.47632.08832.43432.43433.45273.45271.1543
N62.63053.13431.15433.45273.45274.34984.3498
N72.63053.13433.45271.15433.45274.34984.3498
N82.63053.13433.45273.45271.15434.34984.3498

picture of tricyanomethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C3 N6 178.825 C1 C4 N7 178.825
C1 C5 N8 178.825 H2 C1 C3 107.827
H2 C1 C4 107.827 H2 C1 C5 107.827
C3 C1 C4 111.064 C3 C1 C5 111.064
C4 C1 C5 111.064
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability