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 C3F6 (hexafluoropropene)

using model chemistry: CISD/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at CISD/6-31G*
 hartrees
Energy at 0K-711.299671
Energy at 298.15K 
HF Energy-710.185021
Nuclear repulsion energy514.618022
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 CISD/6-31G*
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A' 2010 1861 182.53      
2 A' 1542 1428 248.43      
3 A' 1470 1361 215.64      
4 A' 1366 1265 155.32      
5 A' 1317 1219 205.06      
6 A' 1122 1038 293.90      
7 A' 819 758 17.14      
8 A' 692 641 18.86      
9 A' 637 590 1.19      
10 A' 538 498 4.46      
11 A' 390 361 0.96      
12 A' 382 354 1.25      
13 A' 265 245 1.55      
14 A' 187 173 1.89      
15 A" 1336 1237 313.98      
16 A" 703 651 5.12      
17 A" 607 562 1.85      
18 A" 493 456 5.65      
19 A" 257 238 1.56      
20 A" 134 124 0.50      
21 A" 39 36 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 8153.1 cm-1
Scaled (by 0.9258) Zero Point Vibrational Energy (zpe) 7548.2 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 CISD/6-31G*
ABC
0.08619 0.04252 0.03339

See section I.F.4 to change rotational constant units
Geometric Data calculated at CISD/6-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.025 1.407 0.000
C2 -0.496 0.180 0.000
C3 0.278 -1.091 0.000
F4 -0.796 2.457 0.000
F5 1.238 1.727 0.000
F6 -1.815 -0.014 0.000
F7 1.585 -0.869 0.000
F8 -0.025 -1.817 1.071
F9 -0.025 -1.817 -1.071

Atom - Atom Distances (Å)
  C1 C2 C3 F4 F5 F6 F7 F8 F9
C11.31422.51701.30321.30232.28572.78763.39703.3970
C21.31421.48882.29682.32311.33362.32992.31442.3144
C32.51701.48883.70802.97722.35471.32481.32831.3283
F41.30322.29683.70802.16132.67274.09074.47314.4731
F51.30232.32312.97722.16133.51422.61913.91123.9112
F62.28571.33362.35472.67273.51423.50562.75732.7573
F72.78762.32991.32484.09072.61913.50562.15272.1527
F83.39702.31441.32834.47313.91122.75732.15272.1416
F93.39702.31441.32834.47313.91122.75732.15272.1416

picture of hexafluoropropene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 127.668 C1 C2 F6 119.363
C2 C1 F4 122.684 C2 C1 F5 125.217
C2 C3 F7 111.667 C2 C3 F8 110.344
C2 C3 F9 110.344 C3 C2 F6 112.969
F4 C1 F5 112.099 F7 C3 F8 108.460
F7 C3 F9 108.460 F8 C3 F8 0.000
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability