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: MP2=FULL/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 MP2=FULL/3-21G*
 hartrees
Energy at 0K-1031.833758
Energy at 298.15K 
HF Energy-1031.256979
Nuclear repulsion energy292.768495
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 MP2=FULL/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 3195 3029 4.53 61.48 0.74 0.85
2 A1 3100 2939 5.90 163.83 0.01 0.01
3 A1 1586 1504 4.17 32.23 0.75 0.86
4 A1 1509 1430 7.05 3.61 0.41 0.58
5 A1 1249 1184 29.53 1.13 0.17 0.29
6 A1 920 872 9.33 8.06 0.75 0.86
7 A1 556 527 14.67 13.61 0.04 0.08
8 A1 375 355 0.99 2.30 0.31 0.48
9 A1 263 249 1.25 4.20 0.65 0.79
10 A2 3177 3012 0.00 7.15 0.75 0.86
11 A2 1577 1495 0.00 32.20 0.75 0.86
12 A2 1101 1043 0.00 4.02 0.75 0.86
13 A2 299 284 0.00 0.81 0.75 0.86
14 A2 290 275 0.00 0.54 0.75 0.86
15 B1 3182 3017 11.39 106.11 0.75 0.86
16 B1 1595 1512 10.75 0.01 0.75 0.86
17 B1 1216 1153 78.12 0.41 0.75 0.86
18 B1 663 629 84.96 13.99 0.75 0.86
19 B1 368 349 2.17 1.56 0.75 0.86
20 B1 317 301 0.02 0.00 0.75 0.86
21 B2 3194 3028 3.50 31.79 0.75 0.86
22 B2 3097 2936 2.06 0.02 0.75 0.86
23 B2 1574 1492 6.57 0.00 0.75 0.86
24 B2 1493 1416 18.15 6.54 0.75 0.86
25 B2 1227 1163 7.91 0.05 0.75 0.86
26 B2 993 941 0.03 2.19 0.75 0.86
27 B2 397 377 3.13 1.56 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 19257.1 cm-1
Scaled (by 0.948) Zero Point Vibrational Energy (zpe) 18255.7 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 MP2=FULL/3-21G*
ABC
0.12012 0.07996 0.07018

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/3-21G*

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.343
Cl2 1.475 0.000 -0.724
Cl3 -1.475 0.000 -0.724
C4 0.000 1.280 1.186
C5 0.000 -1.280 1.186
H6 0.000 2.159 0.538
H7 0.000 -2.159 0.538
H8 -0.895 1.293 1.816
H9 0.895 1.293 1.816
H10 0.895 -1.293 1.816
H11 -0.895 -1.293 1.816

Atom - Atom Distances (Å)
  C1 Cl2 Cl3 C4 C5 H6 H7 H8 H9 H10 H11
C11.82061.82061.53251.53252.16812.16812.15422.15422.15422.1542
Cl21.82062.94962.73162.73162.90342.90343.70632.90862.90863.7063
Cl31.82062.94962.73162.73162.90342.90342.90863.70633.70632.9086
C41.53252.73162.73162.56041.09233.50011.09421.09422.79652.7965
C51.53252.73162.73162.56043.50011.09232.79652.79651.09421.0942
H62.16812.90342.90341.09233.50014.31871.78421.78423.78883.7888
H72.16812.90342.90343.50011.09234.31873.78883.78881.78421.7842
H82.15423.70632.90861.09422.79651.78423.78881.78913.14522.5868
H92.15422.90863.70631.09422.79651.78423.78881.78912.58683.1452
H102.15422.90863.70632.79651.09423.78881.78423.14522.58681.7891
H112.15423.70632.90862.79651.09423.78881.78422.58683.14521.7891

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 110.256 C1 C4 H8 109.059
C1 C4 H9 109.059 C1 C5 H7 110.256
C1 C5 H10 109.059 C1 C5 H11 109.059
Cl2 C1 Cl3 108.205 Cl2 C1 C4 108.803
Cl2 C1 C5 108.803 Cl3 C1 C4 108.803
Cl3 C1 C5 108.803 C4 C1 C5 113.307
H6 C4 H8 109.384 H6 C4 H9 109.384
H7 C5 H10 109.384 H7 C5 H11 109.384
H8 C4 H9 109.687 H10 C5 H11 109.687
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability