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 CHClCH3 (1-chloroethyl radical)

using model chemistry: CCD/aug-cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 2A
Energy calculated at CCD/aug-cc-pVDZ
 hartrees
Energy at 0K-537.993803
Energy at 298.15K-537.997375
HF Energy-537.536294
Nuclear repulsion energy94.053593
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/aug-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 3236 3121 7.02      
2 A 3138 3027 11.67      
3 A 3099 2989 13.53      
4 A 3019 2912 16.80      
5 A 1475 1423 2.25      
6 A 1460 1408 7.61      
7 A 1407 1357 5.41      
8 A 1308 1261 41.12      
9 A 1128 1088 2.88      
10 A 1040 1003 15.03      
11 A 1003 968 0.37      
12 A 739 713 25.19      
13 A 449 433 23.95      
14 A 332 320 2.68      
15 A 173 167 0.37      

Unscaled Zero Point Vibrational Energy (zpe) 11503.2 cm-1
Scaled (by 0.9645) Zero Point Vibrational Energy (zpe) 11094.8 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/aug-cc-pVDZ
ABC
1.36472 0.18226 0.16629

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

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.452 0.615 -0.089
C2 1.656 -0.272 0.012
Cl3 -1.119 -0.130 0.007
H4 0.460 1.661 0.222
H5 1.592 -1.103 -0.711
H6 2.567 0.312 -0.197
H7 1.751 -0.712 1.024

Atom - Atom Distances (Å)
  C1 C2 Cl3 H4 H5 H6 H7
C11.49831.74101.09202.15332.13912.1649
C21.49832.77782.28301.10291.10261.1080
Cl31.74102.77782.39772.96803.71763.0997
H41.09202.28302.39773.12952.53652.8186
H52.15331.10292.96803.12951.79381.7855
H62.13911.10263.71762.53651.79381.7906
H72.16491.10803.09972.81861.78551.7906

picture of 1-chloroethyl radical state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H5 110.831 C1 C2 H6 109.718
C1 C2 H7 111.448 C2 C1 Cl3 117.888
C2 C1 H4 122.842 H5 C2 H6 108.844
H5 C2 H7 107.722 H6 C2 H7 108.192
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability