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 CH3CHCl2 (Ethane, 1,1-dichloro-)

using model chemistry: HSEh1PBE/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at HSEh1PBE/3-21G
 hartrees
Energy at 0K-993.803117
Energy at 298.15K-993.807775
HF Energy-993.803117
Nuclear repulsion energy203.623504
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 HSEh1PBE/3-21G
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' 3232 3114 0.53      
2 A' 3182 3065 0.68      
3 A' 3086 2972 1.37      
4 A' 1539 1483 12.04      
5 A' 1473 1419 23.75      
6 A' 1325 1277 16.50      
7 A' 1128 1087 6.17      
8 A' 1018 981 25.11      
9 A' 613 591 17.36      
10 A' 391 377 6.74      
11 A' 256 247 1.60      
12 A" 3164 3047 1.61      
13 A" 1544 1488 5.10      
14 A" 1239 1193 50.90      
15 A" 1112 1071 44.93      
16 A" 656 632 125.84      
17 A" 322 310 1.20      
18 A" 281 271 0.11      

Unscaled Zero Point Vibrational Energy (zpe) 12781.0 cm-1
Scaled (by 0.9633) Zero Point Vibrational Energy (zpe) 12312.0 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 HSEh1PBE/3-21G
ABC
0.20850 0.09938 0.07143

See section I.F.4 to change rotational constant units
Geometric Data calculated at HSEh1PBE/3-21G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.217 0.554 0.000
C2 -0.996 1.439 0.000
H3 1.171 1.072 0.000
Cl4 0.217 -0.530 1.516
Cl5 0.217 -0.530 -1.516
H6 -1.905 0.832 0.000
H7 -0.988 2.073 0.893
H8 -0.988 2.073 -0.893

Atom - Atom Distances (Å)
  C1 C2 H3 Cl4 Cl5 H6 H7 H8
C11.50191.08591.86371.86372.14062.13422.1342
C21.50192.19862.76532.76531.09261.09491.0949
H31.08592.19862.40332.40333.08602.54152.5415
Cl41.86372.76532.40333.03242.94262.93493.7453
Cl51.86372.76532.40333.03242.94263.74532.9349
H62.14061.09263.08602.94262.94261.78261.7826
H72.13421.09492.54152.93493.74531.78261.7852
H82.13421.09492.54153.74532.93491.78261.7852

picture of Ethane, 1,1-dichloro- state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H6 110.188 C1 C2 H7 109.549
C1 C2 H8 109.549 C2 C1 H3 115.402
C2 C1 Cl4 110.035 C2 C1 Cl5 110.035
H3 C1 Cl4 106.111 H3 C1 Cl5 106.111
Cl4 C1 Cl5 108.886 H6 C2 H7 109.158
H6 C2 H8 109.158 H7 C2 H8 109.220
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HSEh1PBE/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.616      
2 C -0.605      
3 H 0.336      
4 Cl 0.049      
5 Cl 0.049      
6 H 0.269      
7 H 0.258      
8 H 0.258      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.413 2.766 0.000 2.797
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -37.419 0.013 0.000
y 0.013 -36.804 0.000
z 0.000 0.000 -42.270
Traceless
 xyz
x 2.118 0.013 0.000
y 0.013 3.040 0.000
z 0.000 0.000 -5.158
Polar
3z2-r2-10.316
x2-y2-0.615
xy0.013
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.801 -0.503 0.000
y -0.503 5.373 0.000
z 0.000 0.000 7.545


<r2> (average value of r2) Å2
<r2> 153.045
(<r2>)1/2 12.371