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return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
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All results from a given calculation for (1-chloroethyl radical)

using model chemistry: B3PW91/6-311G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 2A
Energy calculated at B3PW91/6-311G**
 hartrees
Energy at 0K-538.728374
Energy at 298.15K-538.731770
HF Energy-538.728374
Nuclear repulsion energy94.782735
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 B3PW91/6-311G**
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 3230 3110 6.77      
2 A 3115 3000 10.90      
3 A 3061 2948 14.79      
4 A 2986 2876 21.48      
5 A 1475 1420 3.66      
6 A 1455 1401 10.30      
7 A 1402 1351 8.66      
8 A 1300 1252 39.76      
9 A 1126 1084 4.93      
10 A 1040 1002 24.78      
11 A 993 956 0.78      
12 A 734 707 30.48      
13 A 366 353 13.85      
14 A 298 287 27.08      
15 A 144 138 2.21      

Unscaled Zero Point Vibrational Energy (zpe) 11362.5 cm-1
Scaled (by 0.9631) Zero Point Vibrational Energy (zpe) 10943.2 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 B3PW91/6-311G**
ABC
1.42298 0.18358 0.16786

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/6-311G**

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.448 0.595 -0.057
C2 1.650 -0.263 0.007
Cl3 -1.115 -0.128 0.005
H4 0.449 1.658 0.142
H5 1.608 -1.068 -0.735
H6 2.544 0.336 -0.184
H7 1.769 -0.739 0.992

Atom - Atom Distances (Å)
  C1 C2 Cl3 H4 H5 H6 H7
C11.47821.72401.08102.13812.11502.1508
C21.47822.76822.26991.09521.09321.1004
Cl31.72402.76822.37832.97423.69303.1094
H41.08102.26992.37833.08922.49822.8659
H52.13811.09522.97423.08921.77491.7654
H62.11501.09323.69302.49821.77491.7717
H72.15081.10043.10942.86591.76541.7717

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 111.511 C1 C2 H6 109.772
C1 C2 H7 112.217 C2 C1 Cl3 119.446
C2 C1 H4 124.256 H5 C2 H6 108.403
H5 C2 H7 107.040 H6 C2 H7 107.737
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/6-311G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.267      
2 C -0.304      
3 Cl -0.044      
4 H 0.181      
5 H 0.150      
6 H 0.138      
7 H 0.145      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.646 0.347 0.223 1.697
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -24.996 0.280 0.033
y 0.280 -24.889 0.353
z 0.033 0.353 -26.855
Traceless
 xyz
x 0.876 0.280 0.033
y 0.280 1.037 0.353
z 0.033 0.353 -1.913
Polar
3z2-r2-3.825
x2-y2-0.107
xy0.280
xz0.033
yz0.353


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.582 0.450 -0.004
y 0.450 4.398 -0.019
z -0.004 -0.019 3.321


<r2> (average value of r2) Å2
<r2> 76.012
(<r2>)1/2 8.719