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

using model chemistry: QCISD(T)/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(T)/cc-pVTZ
 hartrees
Energy at 0K-316.673798
Energy at 298.15K 
HF Energy-315.440738
Nuclear repulsion energy212.077729
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(T)/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 3064 2907        
2 A1 2296 2178        
3 A1 832 789        
4 A1 563 534        
5 A1 160 152        
6 A2 335 318        
7 E 2295 2177        
7 E 2295 2177        
8 E 1296 1229        
8 E 1296 1229        
9 E 1027 974        
9 E 1027 974        
10 E 563 534        
10 E 562 533        
11 E 334 317        
11 E 334 317        
12 E 127 121        
12 E 127 121        

Unscaled Zero Point Vibrational Energy (zpe) 9266.5 cm-1
Scaled (by 0.9486) Zero Point Vibrational Energy (zpe) 8790.2 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 QCISD(T)/cc-pVTZ
ABC
0.09469 0.09469 0.04988

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

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.514
H2 0.000 0.000 1.609
C3 0.000 1.407 0.060
C4 1.218 -0.703 0.060
C5 -1.218 -0.703 0.060
N6 0.000 2.520 -0.274
N7 2.182 -1.260 -0.274
N8 -2.182 -1.260 -0.274

Atom - Atom Distances (Å)
  C1 H2 C3 C4 C5 N6 N7 N8
C11.09481.47851.47851.47852.64022.64022.6402
H21.09482.09262.09262.09263.14563.14563.1456
C31.47852.09262.43702.43701.16183.46203.4620
C41.47852.09262.43702.43703.46201.16183.4620
C51.47852.09262.43702.43703.46203.46201.1618
N62.64023.14561.16183.46203.46204.36434.3643
N72.64023.14563.46201.16183.46204.36434.3643
N82.64023.14563.46203.46201.16184.36434.3643

picture of tricyanomethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C3 N6 178.817 C1 C4 N7 178.817
C1 C5 N8 178.817 H2 C1 C3 107.893
H2 C1 C4 107.893 H2 C1 C5 107.893
C3 C1 C4 111.002 C3 C1 C5 111.002
C4 C1 C5 111.002
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability