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: QCISD/6-311G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at QCISD/6-311G**
 hartrees
Energy at 0K-1036.938749
Energy at 298.15K 
HF Energy-1036.143627
Nuclear repulsion energy295.276560
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 QCISD/6-311G**
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 3169 3023 11.01      
2 A1 3072 2931 12.91      
3 A1 1512 1443 2.36      
4 A1 1458 1391 3.49      
5 A1 1215 1160 30.67      
6 A1 964 919 6.42      
7 A1 585 558 13.08      
8 A1 374 357 0.44      
9 A1 270 258 0.65      
10 A2 3148 3003 0.00      
11 A2 1494 1426 0.00      
12 A2 1046 998 0.00      
13 A2 297 283 0.00      
14 A2 286 273 0.00      
15 B1 3154 3009 24.78      
16 B1 1514 1445 4.07      
17 B1 1171 1117 78.97      
18 B1 716 683 85.10      
19 B1 373 356 1.55      
20 B1 331 316 0.01      
21 B2 3167 3021 6.21      
22 B2 3068 2927 5.48      
23 B2 1497 1428 2.65      
24 B2 1438 1372 10.16      
25 B2 1248 1191 4.42      
26 B2 977 932 0.05      
27 B2 399 380 2.69      

Unscaled Zero Point Vibrational Energy (zpe) 18971.2 cm-1
Scaled (by 0.9541) Zero Point Vibrational Energy (zpe) 18100.5 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 QCISD/6-311G**
ABC
0.12264 0.08115 0.07154

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD/6-311G**

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.332
Cl2 1.463 0.000 -0.714
Cl3 -1.463 0.000 -0.714
C4 0.000 1.270 1.170
C5 0.000 -1.270 1.170
H6 0.000 2.155 0.528
H7 0.000 -2.155 0.528
H8 -0.893 1.288 1.802
H9 0.893 1.288 1.802
H10 0.893 -1.288 1.802
H11 -0.893 -1.288 1.802

Atom - Atom Distances (Å)
  C1 Cl2 Cl3 C4 C5 H6 H7 H8 H9 H10 H11
C11.79871.79871.52171.52172.16362.16362.14942.14942.14942.1494
Cl21.79872.92652.70262.70262.88592.88593.68052.88402.88403.6805
Cl31.79872.92652.70262.70262.88592.88592.88403.68053.68052.8840
C41.52172.70262.70262.54051.09243.48441.09471.09472.78292.7829
C51.52172.70262.70262.54053.48441.09242.78292.78291.09471.0947
H62.16362.88592.88591.09243.48444.30931.78071.78073.77823.7782
H72.16362.88592.88593.48441.09244.30933.77823.77821.78071.7807
H82.14943.68052.88401.09472.78291.78073.77821.78673.13552.5766
H92.14942.88403.68051.09472.78291.78073.77821.78672.57663.1355
H102.14942.88403.68052.78291.09473.77821.78073.13552.57661.7867
H112.14943.68052.88402.78291.09473.77821.78072.57663.13551.7867

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 110.645 C1 C4 H8 109.386
C1 C4 H9 109.386 C1 C5 H7 110.645
C1 C5 H10 109.386 C1 C5 H11 109.386
Cl2 C1 Cl3 108.875 Cl2 C1 C4 108.678
Cl2 C1 C5 108.678 Cl3 C1 C4 108.678
Cl3 C1 C5 108.678 C4 C1 C5 113.177
H6 C4 H8 109.011 H6 C4 H9 109.011
H7 C5 H10 109.011 H7 C5 H11 109.011
H8 C4 H9 109.381 H10 C5 H11 109.381
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability