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 CH3CCl2CH3 (Propane, 2,2-dichloro-)

using model chemistry: LSDA/3-21G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at LSDA/3-21G*
 hartrees
Energy at 0K-1030.602903
Energy at 298.15K 
HF Energy-1030.602903
Nuclear repulsion energy295.166987
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 LSDA/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 A1 3102 3046 1.08      
2 A1 2999 2945 2.80      
3 A1 1482 1456 5.85      
4 A1 1409 1384 23.69      
5 A1 1179 1158 47.50      
6 A1 927 910 8.10      
7 A1 558 548 18.41      
8 A1 366 360 1.16      
9 A1 252 248 1.53      
10 A2 3080 3025 0.00      
11 A2 1468 1442 0.00      
12 A2 1024 1006 0.00      
13 A2 293 288 0.00      
14 A2 277 272 0.00      
15 B1 3086 3030 5.02      
16 B1 1494 1467 15.97      
17 B1 1136 1116 103.88      
18 B1 630 618 101.97      
19 B1 362 356 2.81      
20 B1 315 309 0.01      
21 B2 3101 3045 0.86      
22 B2 2996 2942 0.24      
23 B2 1463 1437 9.49      
24 B2 1393 1368 50.11      
25 B2 1214 1192 15.87      
26 B2 957 940 0.54      
27 B2 384 377 3.46      

Unscaled Zero Point Vibrational Energy (zpe) 18474.7 cm-1
Scaled (by 0.982) Zero Point Vibrational Energy (zpe) 18142.2 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 LSDA/3-21G*
ABC
0.12331 0.08112 0.07123

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.340
Cl2 1.468 0.000 -0.715
Cl3 -1.468 0.000 -0.715
C4 0.000 1.259 1.168
C5 0.000 -1.259 1.168
H6 0.000 2.149 0.519
H7 0.000 -2.149 0.519
H8 -0.901 1.275 1.806
H9 0.901 1.275 1.806
H10 0.901 -1.275 1.806
H11 -0.901 -1.275 1.806

Atom - Atom Distances (Å)
  C1 Cl2 Cl3 C4 C5 H6 H7 H8 H9 H10 H11
C11.80781.80781.50681.50682.15652.15652.14152.14152.14152.1415
Cl21.80782.93502.69932.69932.88012.88013.68692.88142.88143.6869
Cl31.80782.93502.69932.69932.88012.88012.88143.68693.68692.8814
C41.50682.69932.69932.51831.10183.46961.10421.10422.76452.7645
C51.50682.69932.69932.51833.46961.10182.76452.76451.10421.1042
H62.15652.88012.88011.10183.46964.29831.79801.79803.76773.7677
H72.15652.88012.88013.46961.10184.29833.76773.76771.79801.7980
H82.14153.68692.88141.10422.76451.79803.76771.80283.12342.5505
H92.14152.88143.68691.10422.76451.79803.76771.80282.55053.1234
H102.14152.88143.68692.76451.10423.76771.79803.12342.55051.8028
H112.14153.68692.88142.76451.10423.76771.79802.55053.12341.8028

picture of Propane, 2,2-dichloro- state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C4 H6 110.562 C1 C4 H8 109.231
C1 C4 H9 109.231 C1 C5 H7 110.562
C1 C5 H10 109.231 C1 C5 H11 109.231
Cl2 C1 Cl3 108.537 Cl2 C1 C4 108.710
Cl2 C1 C5 108.710 Cl3 C1 C4 108.710
Cl3 C1 C5 108.710 C4 C1 C5 113.363
H6 C4 H8 109.181 H6 C4 H9 109.181
H7 C5 H10 109.181 H7 C5 H11 109.181
H8 C4 H9 109.438 H10 C5 H11 109.438
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at LSDA/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.362      
2 Cl 0.025      
3 Cl 0.025      
4 C -0.591      
5 C -0.591      
6 H 0.258      
7 H 0.258      
8 H 0.244      
9 H 0.244      
10 H 0.244      
11 H 0.244      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.000 0.000 2.511 2.511
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -47.195 0.000 0.000
y 0.000 -43.021 0.000
z 0.000 0.000 -43.610
Traceless
 xyz
x -3.880 0.000 0.000
y 0.000 2.382 0.000
z 0.000 0.000 1.498
Polar
3z2-r22.996
x2-y2-4.174
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 8.689 0.000 0.000
y 0.000 6.272 0.000
z 0.000 0.000 7.396


<r2> (average value of r2) Å2
<r2> 187.147
(<r2>)1/2 13.680