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: B3PW91/6-31G(2df,p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 2A
Energy calculated at B3PW91/6-31G(2df,p)
 hartrees
Energy at 0K-538.691470
Energy at 298.15K-538.694879
HF Energy-538.691470
Nuclear repulsion energy94.937032
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 B3PW91/6-31G(2df,p)
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 3234 3109 5.43      
2 A 3127 3006 9.11      
3 A 3077 2958 11.96      
4 A 2996 2881 18.17      
5 A 1474 1417 2.58      
6 A 1454 1398 7.77      
7 A 1398 1344 5.13      
8 A 1292 1243 40.63      
9 A 1125 1082 5.13      
10 A 1036 996 19.59      
11 A 993 955 0.80      
12 A 742 714 25.03      
13 A 374 359 15.83      
14 A 310 298 14.39      
15 A 141 136 0.92      

Unscaled Zero Point Vibrational Energy (zpe) 11387.1 cm-1
Scaled (by 0.9614) Zero Point Vibrational Energy (zpe) 10947.6 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 B3PW91/6-31G(2df,p)
ABC
1.42217 0.18439 0.16856

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/6-31G(2df,p)

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.443 0.596 -0.061
C2 1.647 -0.263 0.008
Cl3 -1.112 -0.129 0.005
H4 0.448 1.657 0.153
H5 1.591 -1.089 -0.709
H6 2.540 0.331 -0.216
H7 1.785 -0.710 1.004

Atom - Atom Distances (Å)
  C1 C2 Cl3 H4 H5 H6 H7
C11.48071.71651.08242.13972.11922.1546
C21.48072.76272.26791.09561.09441.1012
Cl31.71652.76272.37542.95663.68703.1192
H41.08242.26792.37543.09702.50392.8484
H52.13971.09562.95663.09701.77741.7656
H62.11921.09443.68702.50391.77741.7723
H72.15461.10123.11922.84841.76561.7723

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 111.430 C1 C2 H6 109.849
C1 C2 H7 112.291 C2 C1 Cl3 119.373
C2 C1 H4 123.715 H5 C2 H6 108.496
H5 C2 H7 106.968 H6 C2 H7 107.642
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.103      
2 C -0.452      
3 Cl -0.103      
4 H 0.168      
5 H 0.168      
6 H 0.159      
7 H 0.163      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.548 0.372 0.194 1.604
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -24.431 0.307 0.048
y 0.307 -24.318 0.327
z 0.048 0.327 -26.127
Traceless
 xyz
x 0.792 0.307 0.048
y 0.307 0.961 0.327
z 0.048 0.327 -1.753
Polar
3z2-r2-3.507
x2-y2-0.113
xy0.307
xz0.048
yz0.327


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.481 0.306 0.009
y 0.306 4.575 0.007
z 0.009 0.007 3.662


<r2> (average value of r2) Å2
<r2> 75.414
(<r2>)1/2 8.684