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: B1B95/6-31G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 2A
Energy calculated at B1B95/6-31G
 hartrees
Energy at 0K-538.711414
Energy at 298.15K-538.714815
HF Energy-538.711414
Nuclear repulsion energy93.145435
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 B1B95/6-31G
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 3296 3143 4.95      
2 A 3161 3015 9.45      
3 A 3109 2965 13.44      
4 A 3025 2885 16.04      
5 A 1528 1457 5.99      
6 A 1506 1437 13.67      
7 A 1462 1395 12.23      
8 A 1314 1253 50.85      
9 A 1160 1107 5.04      
10 A 1065 1015 26.92      
11 A 1037 989 1.82      
12 A 689 657 39.45      
13 A 367 350 27.57      
14 A 307 293 27.65      
15 A 146 139 1.87      

Unscaled Zero Point Vibrational Energy (zpe) 11586.3 cm-1
Scaled (by 0.9537) Zero Point Vibrational Energy (zpe) 11049.8 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 B1B95/6-31G
ABC
1.38354 0.17684 0.16171

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/6-31G

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.491 0.610 -0.062
C2 1.668 -0.276 0.008
Cl3 -1.141 -0.126 0.005
H4 0.487 1.666 0.160
H5 1.611 -1.081 -0.730
H6 2.574 0.304 -0.184
H7 1.779 -0.752 0.993

Atom - Atom Distances (Å)
  C1 C2 Cl3 H4 H5 H6 H7
C11.47451.79241.07942.13512.10852.1511
C21.47452.81332.27831.09401.09271.0995
Cl31.79242.81332.42663.00433.74493.1460
H41.07942.27832.42663.09902.51632.8657
H52.13511.09403.00433.09901.77301.7627
H62.10851.09273.74492.51631.77301.7699
H72.15111.09953.14602.86571.76271.7699

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 111.599 C1 C2 H6 109.536
C1 C2 H7 112.563 C2 C1 Cl3 118.564
C2 C1 H4 125.560 H5 C2 H6 108.344
H5 C2 H7 106.947 H6 C2 H7 107.678
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/6-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.313      
2 C -0.482      
3 Cl 0.022      
4 H 0.207      
5 H 0.194      
6 H 0.184      
7 H 0.189      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.051 0.465 0.286 2.122
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -24.900 0.060 0.082
y 0.060 -24.423 0.414
z 0.082 0.414 -26.526
Traceless
 xyz
x 0.574 0.060 0.082
y 0.060 1.290 0.414
z 0.082 0.414 -1.865
Polar
3z2-r2-3.729
x2-y2-0.477
xy0.060
xz0.082
yz0.414


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.098 0.551 -0.004
y 0.551 3.870 0.006
z -0.004 0.006 2.713


<r2> (average value of r2) Å2
<r2> 77.868
(<r2>)1/2 8.824