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All results from a given calculation for CF3CHF2 (pentafluoroethane)

using model chemistry: QCISD/cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at QCISD/cc-pVDZ
 hartrees
Energy at 0K-574.753105
Energy at 298.15K-574.756556
HF Energy-573.541411
Nuclear repulsion energy359.260822
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-pVDZ
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' 3147 3019 28.64      
2 A' 1498 1437 5.36      
3 A' 1359 1304 192.15      
4 A' 1247 1197 200.83      
5 A' 1164 1117 131.54      
6 A' 885 849 50.96      
7 A' 732 702 35.22      
8 A' 585 562 15.61      
9 A' 529 507 9.97      
10 A' 368 353 0.05      
11 A' 244 234 4.53      
12 A" 1404 1347 23.03      
13 A" 1287 1235 378.76      
14 A" 1202 1153 105.31      
15 A" 593 569 1.20      
16 A" 420 403 1.29      
17 A" 210 202 3.03      
18 A" 73 70 0.82      

Unscaled Zero Point Vibrational Energy (zpe) 8472.6 cm-1
Scaled (by 0.9594) Zero Point Vibrational Energy (zpe) 8128.7 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-pVDZ
ABC
0.12196 0.08061 0.06668

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.119 -0.601 0.000
C2 -0.604 0.748 0.000
F3 1.444 -0.442 0.000
F4 -0.233 -1.300 1.087
F5 -0.233 -1.300 -1.087
F6 -0.233 1.439 -1.101
F7 -0.233 1.439 1.101
H8 -1.697 0.602 0.000

Atom - Atom Distances (Å)
  C1 C2 F3 F4 F5 F6 F7 H8
C11.53091.33361.33931.33932.34492.34492.1785
C21.53092.36832.34802.34801.35171.35171.1023
F31.33362.36832.17432.17432.74992.74993.3093
F41.33932.34802.17432.17403.50552.73882.6346
F51.33932.34802.17432.17402.73883.50552.6346
F62.34491.35172.74993.50552.73882.20212.0135
F72.34491.35172.74992.73883.50552.20212.0135
H82.17851.10233.30932.63462.63462.01352.0135

picture of pentafluoroethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 F6 108.712 C1 C2 F7 108.712
C1 C2 H8 110.594 C2 C1 F3 111.352
C2 C1 F4 109.597 C2 C1 F5 109.597
F3 C1 F4 108.870 F3 C1 F5 108.870
F4 C1 F5 108.503 F6 C2 F7 109.084
F6 C2 H8 109.852 F7 C2 H8 109.852
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability