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: MP2=FULL/cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 2A
Energy calculated at MP2=FULL/cc-pVTZ
 hartrees
Energy at 0K-538.144371
Energy at 298.15K-538.147935
HF Energy-537.569959
Nuclear repulsion energy95.690981
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 MP2=FULL/cc-pVTZ
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 3297 3130 4.60      
2 A 3176 3015 7.24      
3 A 3133 2975 8.72      
4 A 3058 2903 14.14      
5 A 1510 1434 2.83      
6 A 1494 1418 9.09      
7 A 1423 1351 8.35      
8 A 1334 1266 37.36      
9 A 1147 1089 4.36      
10 A 1062 1008 18.20      
11 A 1016 964 0.42      
12 A 767 728 23.29      
13 A 419 398 25.95      
14 A 335 318 5.90      
15 A 170 162 0.67      

Unscaled Zero Point Vibrational Energy (zpe) 11670.4 cm-1
Scaled (by 0.9494) Zero Point Vibrational Energy (zpe) 11079.9 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 MP2=FULL/cc-pVTZ
ABC
1.41982 0.18831 0.17181

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/cc-pVTZ

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.440 0.602 -0.072
C2 1.630 -0.265 0.009
Cl3 -1.100 -0.128 0.006
H4 0.454 1.641 0.182
H5 1.559 -1.086 -0.698
H6 2.524 0.309 -0.211
H7 1.744 -0.701 1.003

Atom - Atom Distances (Å)
  C1 C2 Cl3 H4 H5 H6 H7
C11.47481.70631.07082.11922.10912.1335
C21.47482.73412.24741.08561.08471.0908
Cl31.70632.73412.36162.91303.65713.0676
H41.07082.24742.36163.07182.49372.7970
H52.11921.08562.91303.07181.76431.7536
H62.10911.08473.65712.49371.76431.7608
H72.13351.09083.06762.79701.75361.7608

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 110.817 C1 C2 H6 110.047
C1 C2 H7 111.651 C2 C1 Cl3 118.339
C2 C1 H4 123.198 H5 C2 H6 108.775
H5 C2 H7 107.369 H6 C2 H7 108.074
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability