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All results from a given calculation for CF3CHF2 (pentafluoroethane)

using model chemistry: QCISD/cc-pVTZ

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-pVTZ
 hartrees
Energy at 0K-575.312372
Energy at 298.15K-575.315891
HF Energy-573.740659
Nuclear repulsion energy361.260749
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-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 A' 3144 3004 18.79      
2 A' 1501 1434 1.97      
3 A' 1365 1304 173.42      
4 A' 1255 1199 181.23      
5 A' 1182 1130 130.60      
6 A' 895 856 44.26      
7 A' 744 711 34.57      
8 A' 593 567 14.76      
9 A' 535 511 8.65      
10 A' 372 355 0.05      
11 A' 249 238 3.97      
12 A" 1413 1350 12.19      
13 A" 1287 1230 363.25      
14 A" 1208 1155 104.69      
15 A" 600 573 0.95      
16 A" 426 407 1.07      
17 A" 215 205 2.42      
18 A" 79 76 0.83      

Unscaled Zero Point Vibrational Energy (zpe) 8531.1 cm-1
Scaled (by 0.9555) Zero Point Vibrational Energy (zpe) 8151.5 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 QCISD/cc-pVTZ
ABC
0.12372 0.08119 0.06726

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.120 -0.602 0.000
C2 -0.600 0.748 0.000
F3 1.435 -0.447 0.000
F4 -0.232 -1.294 1.079
F5 -0.232 -1.294 -1.079
F6 -0.232 1.435 -1.093
F7 -0.232 1.435 1.093
H8 -1.679 0.606 0.000

Atom - Atom Distances (Å)
  C1 C2 F3 F4 F5 F6 F7 H8
C11.52971.32391.32981.32982.33832.33832.1666
C21.52972.36002.33862.33861.34221.34221.0885
F31.32392.36002.15902.15902.74192.74193.2872
F41.32982.33862.15902.15893.48802.72932.6203
F51.32982.33862.15902.15892.72933.48802.6203
F62.33831.34222.74193.48802.72932.18511.9939
F72.33831.34222.74192.72933.48802.18511.9939
H82.16661.08853.28722.62032.62031.99391.9939

picture of pentafluoroethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 F6 108.844 C1 C2 F7 108.844
C1 C2 H8 110.564 C2 C1 F3 111.383
C2 C1 F4 109.543 C2 C1 F5 109.543
F3 C1 F4 108.892 F3 C1 F5 108.892
F4 C1 F5 108.534 F6 C2 F7 108.977
F6 C2 H8 109.790 F7 C2 H8 109.790
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability