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 CH2ClCHCl2 (1,1,2-trichloroethane)

using model chemistry: BLYP/STO-3G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at BLYP/STO-3G
 hartrees
Energy at 0K-1442.427849
Energy at 298.15K-1442.431230
Nuclear repulsion energy325.995974
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 BLYP/STO-3G
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 3361 3110 2.09      
2 A 3268 3024 1.36      
3 A 3238 2996 1.52      
4 A 1542 1426 2.03      
5 A 1351 1250 3.07      
6 A 1297 1200 24.87      
7 A 1219 1128 16.78      
8 A 1177 1089 2.46      
9 A 1046 968 5.30      
10 A 943 873 25.28      
11 A 809 748 11.12      
12 A 778 720 94.19      
13 A 681 630 21.73      
14 A 359 332 8.88      
15 A 312 289 2.05      
16 A 228 211 3.44      
17 A 159 147 5.31      
18 A 82 76 4.82      

Unscaled Zero Point Vibrational Energy (zpe) 10925.2 cm-1
Scaled (by 0.9252) Zero Point Vibrational Energy (zpe) 10108.0 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 BLYP/STO-3G
ABC
0.10664 0.04509 0.03280

See section I.F.4 to change rotational constant units
Geometric Data calculated at BLYP/STO-3G

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.673 -0.875 0.428
C2 -0.427 -0.080 -0.372
Cl3 2.378 -0.342 -0.101
H4 0.579 -0.694 1.523
H5 0.580 -1.963 0.205
Cl6 -2.086 -0.883 -0.018
Cl7 -0.431 1.726 0.084
H8 -0.271 -0.138 -1.479

Atom - Atom Distances (Å)
  C1 C2 Cl3 H4 H5 Cl6 Cl7 H8
C11.57611.86311.11381.11512.79512.84652.2521
C21.57612.83082.23202.21241.87631.86271.1190
Cl31.86312.83082.44962.44064.49763.49322.9929
H41.11382.23202.44961.83033.08382.99113.1691
H51.11512.21242.44061.83032.88543.82722.6252
Cl62.79511.87634.49763.08382.88543.09062.4463
Cl72.84651.86273.49322.99113.82723.09062.4373
H82.25211.11902.99293.16912.62522.44632.4373

picture of 1,1,2-trichloroethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 Cl6 107.801 C1 C2 Cl7 111.468
C1 C2 H8 112.251 C2 C1 Cl3 110.516
C2 C1 H4 110.978 C2 C1 H5 109.388
Cl3 C1 H4 108.097 Cl3 C1 H5 107.395
H4 C1 H5 110.397 Cl6 C2 Cl7 111.497
Cl6 C2 H8 106.768 Cl7 C2 H8 106.999
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/STO-3G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.093      
2 C 0.008      
3 Cl -0.120      
4 H 0.129      
5 H 0.126      
6 Cl -0.103      
7 Cl -0.090      
8 H 0.142      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.008 -1.593 -0.152 1.600
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -54.282 -0.580 0.762
y -0.580 -47.540 -0.537
z 0.762 -0.537 -44.812
Traceless
 xyz
x -8.106 -0.580 0.762
y -0.580 2.006 -0.537
z 0.762 -0.537 6.100
Polar
3z2-r212.199
x2-y2-6.742
xy-0.580
xz0.762
yz-0.537


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.744 1.109 -0.524
y 1.109 4.349 0.102
z -0.524 0.102 1.953


<r2> (average value of r2) Å2
<r2> 290.000
(<r2>)1/2 17.029