return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

All results from a given calculation for CF3CN (Acetonitrile, trifluoro-)

using model chemistry: PBEPBE/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 1A1
Energy calculated at PBEPBE/3-21G
 hartrees
Energy at 0K-427.676618
Energy at 298.15K-427.677650
Nuclear repulsion energy226.399415
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 PBEPBE/3-21G
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 2287 2266 28.18      
2 A1 1171 1161 253.05      
3 A1 753 746 3.95      
4 A1 482 477 9.26      
5 E 1192 1181 232.54      
5 E 1192 1181 232.50      
6 E 619 613 1.98      
6 E 619 613 1.98      
7 E 438 434 2.91      
7 E 438 434 2.91      
8 E 190 188 3.91      
8 E 190 188 3.91      

Unscaled Zero Point Vibrational Energy (zpe) 4784.4 cm-1
Scaled (by 0.9909) Zero Point Vibrational Energy (zpe) 4740.8 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 PBEPBE/3-21G
ABC
0.17686 0.09584 0.09584

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBE/3-21G

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -0.312
C2 0.000 0.000 1.151
N3 0.000 0.000 2.325
F4 0.000 1.293 -0.789
F5 1.120 -0.647 -0.789
F6 -1.120 -0.647 -0.789

Atom - Atom Distances (Å)
  C1 C2 N3 F4 F5 F6
C11.46372.63731.37841.37841.3784
C21.46371.17362.33222.33222.3322
N32.63731.17363.37223.37223.3722
F41.37842.33223.37222.23992.2399
F51.37842.33223.37222.23992.2399
F61.37842.33223.37222.23992.2399

picture of Acetonitrile, trifluoro- state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N3 180.000 C2 C1 F4 110.251
C2 C1 F5 110.251 C2 C1 F6 110.251
F4 C1 F5 108.681 F4 C1 F6 108.681
F5 C1 F6 108.681
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.740      
2 C 0.322      
3 N -0.424      
4 F -0.213      
5 F -0.213      
6 F -0.213      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.000 0.000 -0.997 0.997
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -30.654 0.000 0.000
y 0.000 -30.654 0.000
z 0.000 0.000 -36.198
Traceless
 xyz
x 2.772 0.000 0.000
y 0.000 2.772 0.000
z 0.000 0.000 -5.545
Polar
3z2-r2-11.090
x2-y20.000
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.445 0.000 0.000
y 0.000 2.445 0.000
z 0.000 0.000 4.584


<r2> (average value of r2) Å2
<r2> 128.657
(<r2>)1/2 11.343