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All results from a given calculation for CH3CHF2 (Ethane, 1,1-difluoro-)

using model chemistry: CCD/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 CCD/cc-pVTZ
 hartrees
Energy at 0K-277.916534
Energy at 298.15K 
HF Energy-277.055330
Nuclear repulsion energy132.973151
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 CCD/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' 3179 2968 14.96      
2 A' 3122 2915 34.88      
3 A' 3087 2882 2.66      
4 A' 1508 1408 7.76      
5 A' 1475 1377 73.26      
6 A' 1416 1322 0.40      
7 A' 1203 1124 97.82      
8 A' 1176 1098 29.85      
9 A' 896 836 6.32      
10 A' 585 546 5.78      
11 A' 479 448 13.54      
12 A" 3177 2967 9.37      
13 A" 1511 1411 0.00      
14 A" 1431 1336 27.34      
15 A" 1209 1129 157.48      
16 A" 991 925 40.04      
17 A" 388 363 0.06      
18 A" 240 224 0.07      

Unscaled Zero Point Vibrational Energy (zpe) 13536.4 cm-1
Scaled (by 0.9337) Zero Point Vibrational Energy (zpe) 12638.9 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 CCD/cc-pVTZ
ABC
0.31998 0.30155 0.17415

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.323 0.161 0.000
C2 -0.901 1.032 0.000
H3 1.258 0.718 0.000
F4 0.323 -0.644 1.091
F5 0.323 -0.644 -1.091
H6 -1.788 0.403 0.000
H7 -0.905 1.662 0.887
H8 -0.905 1.662 -0.887

Atom - Atom Distances (Å)
  C1 C2 H3 F4 F5 H6 H7 H8
C11.50201.08911.35571.35572.12452.13232.1323
C21.50202.18192.34462.34461.08791.08761.0876
H31.08912.18191.98021.98023.06272.52142.5214
F41.35572.34461.98022.18152.59632.62043.2766
F51.35572.34461.98022.18152.59633.27662.6204
H62.12451.08793.06272.59632.59631.77521.7752
H72.13231.08762.52142.62043.27661.77521.7738
H82.13231.08762.52143.27662.62041.77521.7738

picture of Ethane, 1,1-difluoro- state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H6 109.186 C1 C2 H7 109.818
C1 C2 H8 109.818 C2 C1 H3 113.765
C2 C1 F4 110.154 C2 C1 F5 110.154
H3 C1 F4 107.689 H3 C1 F5 107.689
F4 C1 F5 107.135 H6 C2 H7 109.371
H6 C2 H8 109.371 H7 C2 H8 109.262
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability