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 C3F8 (perfluoropropane)

using model chemistry: MP2/6-31G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at MP2/6-31G**
 hartrees
Energy at 0K-910.860349
Energy at 298.15K-910.863888
HF Energy-909.117878
Nuclear repulsion energy796.114369
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 MP2/6-31G**
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A1 1436 1345 6.74      
2 A1 1323 1239 334.32      
3 A1 1191 1115 185.77      
4 A1 783 734 2.44      
5 A1 669 627 3.67      
6 A1 537 503 9.46      
7 A1 380 356 0.07      
8 A1 322 302 0.44      
9 A1 158 148 0.86      
10 A2 1270 1190 0.00      
11 A2 564 528 0.00      
12 A2 350 328 0.00      
13 A2 224 210 0.00      
14 A2 20 19 0.00      
15 B1 1316 1232 545.08      
16 B1 1259 1179 94.54      
17 B1 627 587 1.02      
18 B1 461 431 3.29      
19 B1 216 202 3.95      
20 B1 90 84 0.05      
21 B2 1440 1348 123.04      
22 B2 1257 1177 61.12      
23 B2 1036 970 230.15      
24 B2 725 679 51.98      
25 B2 531 497 8.24      
26 B2 342 320 0.03      
27 B2 268 251 3.22      

Unscaled Zero Point Vibrational Energy (zpe) 9397.2 cm-1
Scaled (by 0.9365) Zero Point Vibrational Energy (zpe) 8800.5 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 MP2/6-31G**
ABC
0.05532 0.03203 0.03029

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/6-31G**

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.585
C2 0.000 1.298 -0.232
C3 0.000 -1.298 -0.232
F4 1.108 0.000 1.366
F5 -1.108 0.000 1.366
F6 0.000 2.342 0.608
F7 0.000 -2.342 0.608
F8 1.092 1.359 -1.007
F9 -1.092 1.359 -1.007
F10 -1.092 -1.359 -1.007
F11 1.092 -1.359 -1.007

Atom - Atom Distances (Å)
  C1 C2 C3 F4 F5 F6 F7 F8 F9 F10 F11
C11.53311.53311.35571.35572.34202.34202.36092.36092.36092.3609
C21.53312.59532.33762.33761.33983.73511.34101.34102.97502.9750
C31.53312.59532.33762.33763.73511.33982.97502.97501.34101.3410
F41.35572.33762.33762.21552.69942.69942.73513.51003.51002.7351
F51.35572.33762.33762.21552.69942.69943.51002.73512.73513.5100
F62.34201.33983.73512.69942.69944.68382.18372.18374.18284.1828
F72.34203.73511.33982.69942.69944.68384.18284.18282.18372.1837
F82.36091.34102.97502.73513.51002.18374.18282.18413.48632.7173
F92.36091.34102.97503.51002.73512.18374.18282.18412.71733.4863
F102.36092.97501.34103.51002.73514.18282.18373.48632.71732.1841
F112.36092.97501.34102.73513.51004.18282.18372.71733.48632.1841

picture of perfluoropropane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 F6 109.028 C1 C2 F8 110.279
C1 C2 F9 110.279 C1 C3 F7 109.028
C1 C3 F10 110.279 C1 C3 F11 110.279
C2 C1 C3 115.648 C2 C1 F4 107.878
C2 C1 F5 107.878 C3 C1 F4 107.878
C3 C1 F5 107.878 F4 C1 F5 109.594
F6 C2 F8 109.089 F6 C2 F9 109.089
F7 C3 F10 109.089 F7 C3 F11 109.089
F8 C2 F9 109.051 F10 C3 F11 109.051
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability