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 CH3CF2Cl (1-Chloro-1,1-Difluoroethane)

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-736.703887
Energy at 298.15K-736.708266
HF Energy-735.879910
Nuclear repulsion energy244.514217
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
(Å4/u)
Dep P Dep U
1 A' 3191 3061 5.28      
2 A' 3093 2968 3.00      
3 A' 1480 1420 0.11      
4 A' 1432 1374 45.65      
5 A' 1275 1223 125.61      
6 A' 1157 1110 188.26      
7 A' 930 892 99.84      
8 A' 689 661 48.59      
9 A' 549 527 16.40      
10 A' 440 422 0.58      
11 A' 307 295 0.86      
12 A" 3206 3076 3.56      
13 A" 1481 1421 0.99      
14 A" 1257 1206 188.19      
15 A" 996 955 38.59      
16 A" 432 414 0.07      
17 A" 337 323 0.51      
18 A" 256 245 0.01      

Unscaled Zero Point Vibrational Energy (zpe) 11252.9 cm-1
Scaled (by 0.9594) Zero Point Vibrational Energy (zpe) 10796.1 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
0.17351 0.10656 0.10389

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 -0.350 -0.002 0.000
C2 -0.816 1.436 0.000
Cl3 1.440 -0.126 0.000
F4 -0.816 -0.656 1.087
F5 -0.816 -0.656 -1.087
H6 -1.919 1.440 0.000
H7 -0.443 1.947 0.900
H8 -0.443 1.947 -0.900

Atom - Atom Distances (Å)
  C1 C2 Cl3 F4 F5 H6 H7 H8
C11.51151.79471.35171.35172.13072.14882.1488
C21.51152.74422.35772.35771.10301.10061.1006
Cl31.79472.74422.56002.56003.70632.94182.9418
F41.35172.35772.56002.17432.60602.63633.2964
F51.35172.35772.56002.17432.60603.29642.6363
H62.13071.10303.70632.60602.60601.80211.8021
H72.14881.10062.94182.63633.29641.80211.8008
H82.14881.10062.94183.29642.63631.80211.8008

picture of 1-Chloro-1,1-Difluoroethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H6 108.151 C1 C2 H7 109.702
C1 C2 H8 109.702 C2 C1 Cl3 111.921
C2 C1 F4 110.744 C2 C1 F5 110.744
Cl3 C1 F4 108.081 Cl3 C1 F5 108.081
F4 C1 F5 107.090 H6 C2 H7 109.731
H6 C2 H8 109.731 H7 C2 H8 109.799
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability