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: CCD/6-31G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at CCD/6-31G**
 hartrees
Energy at 0K-1036.824454
Energy at 298.15K 
HF Energy-1036.072989
Nuclear repulsion energy295.739392
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 CCD/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 A1 3242 3040 10.03      
2 A1 3136 2940 11.54      
3 A1 1552 1455 1.92      
4 A1 1487 1394 3.88      
5 A1 1239 1161 27.14      
6 A1 975 914 7.15      
7 A1 594 556 13.19      
8 A1 379 355 0.29      
9 A1 270 253 1.15      
10 A2 3221 3020 0.00      
11 A2 1541 1445 0.00      
12 A2 1066 999 0.00      
13 A2 296 278 0.00      
14 A2 284 267 0.00      
15 B1 3226 3025 22.38      
16 B1 1561 1463 5.75      
17 B1 1198 1124 73.64      
18 B1 736 690 73.76      
19 B1 374 351 1.27      
20 B1 322 301 0.02      
21 B2 3241 3038 6.19      
22 B2 3132 2936 5.82      
23 B2 1539 1443 3.55      
24 B2 1469 1378 9.35      
25 B2 1266 1187 4.90      
26 B2 991 929 0.06      
27 B2 402 377 3.31      

Unscaled Zero Point Vibrational Energy (zpe) 19367.2 cm-1
Scaled (by 0.9376) Zero Point Vibrational Energy (zpe) 18158.7 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 CCD/6-31G**
ABC
0.12279 0.08153 0.07166

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.331
Cl2 1.460 0.000 -0.715
Cl3 -1.460 0.000 -0.715
C4 0.000 1.266 1.171
C5 0.000 -1.266 1.171
H6 0.000 2.149 0.537
H7 0.000 -2.149 0.537
H8 -0.888 1.282 1.802
H9 0.888 1.282 1.802
H10 0.888 -1.282 1.802
H11 -0.888 -1.282 1.802

Atom - Atom Distances (Å)
  C1 Cl2 Cl3 C4 C5 H6 H7 H8 H9 H10 H11
C11.79641.79641.52001.52002.15842.15842.14382.14382.14382.1438
Cl21.79642.92092.70112.70112.88392.88393.67342.88252.88253.6734
Cl31.79642.92092.70112.70112.88392.88392.88253.67343.67342.8825
C41.52002.70112.70112.53251.08693.47331.08911.08912.77082.7708
C51.52002.70112.70112.53253.47331.08692.77082.77081.08911.0891
H62.15842.88392.88391.08693.47334.29721.77231.77233.76243.7624
H72.15842.88392.88393.47331.08694.29723.76243.76241.77231.7723
H82.14383.67342.88251.08912.77081.77233.76241.77523.11782.5631
H92.14382.88253.67341.08912.77081.77233.76241.77522.56313.1178
H102.14382.88253.67342.77081.08913.76241.77233.11782.56311.7752
H112.14383.67342.88252.77081.08913.76241.77232.56313.11781.7752

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 110.687 C1 C4 H8 109.398
C1 C4 H9 109.398 C1 C5 H7 110.687
C1 C5 H10 109.398 C1 C5 H11 109.398
Cl2 C1 Cl3 108.778 Cl2 C1 C4 108.789
Cl2 C1 C5 108.789 Cl3 C1 C4 108.789
Cl3 C1 C5 108.789 C4 C1 C5 112.833
H6 C4 H8 109.078 H6 C4 H9 109.078
H7 C5 H10 109.078 H7 C5 H11 109.078
H8 C4 H9 109.177 H10 C5 H11 109.177
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability