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

using model chemistry: CCD/3-21G*

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/3-21G*
 hartrees
Energy at 0K-275.877465
Energy at 298.15K 
HF Energy-275.441819
Nuclear repulsion energy130.020143
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/3-21G*
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' 3153 3016 18.21      
2 A' 3102 2967 45.99      
3 A' 3077 2943 2.22      
4 A' 1569 1501 3.77      
5 A' 1496 1430 30.04      
6 A' 1473 1409 34.50      
7 A' 1202 1149 33.40      
8 A' 1150 1100 74.97      
9 A' 884 846 6.35      
10 A' 548 525 8.65      
11 A' 445 426 17.00      
12 A" 3155 3017 9.00      
13 A" 1576 1507 0.59      
14 A" 1476 1412 45.34      
15 A" 1241 1187 75.69      
16 A" 1027 982 27.87      
17 A" 357 341 0.02      
18 A" 257 246 0.15      

Unscaled Zero Point Vibrational Energy (zpe) 13592.2 cm-1
Scaled (by 0.9565) Zero Point Vibrational Energy (zpe) 13001.0 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/3-21G*
ABC
0.29831 0.29527 0.16633

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCD/3-21G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.331 0.173 0.000
C2 -0.921 1.031 0.000
H3 1.252 0.764 0.000
F4 0.331 -0.649 1.133
F5 0.331 -0.649 -1.133
H6 -1.798 0.374 0.000
H7 -0.941 1.661 0.896
H8 -0.941 1.661 -0.896

Atom - Atom Distances (Å)
  C1 C2 H3 F4 F5 H6 H7 H8
C11.51861.09381.39991.39992.13882.15272.1527
C21.51862.18972.38282.38281.09581.09491.0949
H31.09382.18972.03172.03173.07472.53272.5327
F41.39992.38282.03172.26582.62002.64803.3272
F51.39992.38282.03172.26582.62003.32722.6480
H62.13881.09583.07472.62002.62001.78701.7870
H72.15271.09492.53272.64803.32721.78701.7912
H82.15271.09492.53273.32722.64801.78701.7912

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 108.707 C1 C2 H7 109.852
C1 C2 H8 109.852 C2 C1 H3 112.887
C2 C1 F4 109.392 C2 C1 F5 109.392
H3 C1 F4 108.499 H3 C1 F5 108.499
F4 C1 F5 108.052 H6 C2 H7 109.320
H6 C2 H8 109.320 H7 C2 H8 109.768
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability