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 CH3CHClCH3 (Propane, 2-chloro-)

using model chemistry: MP2=FULL/6-31G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at MP2=FULL/6-31G**
 hartrees
Energy at 0K-577.777145
Energy at 298.15K-577.785002
HF Energy-577.180065
Nuclear repulsion energy166.767416
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/6-31G**
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A' 3250 3037 19.95 56.35 0.65 0.79
2 A' 3234 3022 31.02 97.31 0.74 0.85
3 A' 3184 2975 8.03 96.50 0.40 0.57
4 A' 3136 2930 14.37 196.19 0.01 0.02
5 A' 1568 1465 6.73 2.24 0.71 0.83
6 A' 1554 1452 5.92 23.87 0.75 0.86
7 A' 1475 1379 5.09 2.42 0.63 0.77
8 A' 1358 1269 36.27 7.72 0.74 0.85
9 A' 1233 1152 11.86 1.23 0.67 0.80
10 A' 1127 1053 12.27 5.32 0.52 0.69
11 A' 942 880 8.26 8.53 0.66 0.79
12 A' 678 634 21.32 14.64 0.26 0.41
13 A' 435 407 1.40 1.12 0.19 0.32
14 A' 352 329 0.95 0.78 0.58 0.73
15 A' 292 273 0.14 0.06 0.70 0.83
16 A" 3248 3035 10.17 35.68 0.75 0.86
17 A" 3229 3017 1.48 10.77 0.75 0.86
18 A" 3133 2927 11.36 1.21 0.75 0.86
19 A" 1548 1446 0.59 20.69 0.75 0.86
20 A" 1542 1441 1.70 9.15 0.75 0.86
21 A" 1461 1365 8.85 3.89 0.75 0.86
22 A" 1405 1313 1.13 3.37 0.75 0.86
23 A" 1196 1117 2.01 4.46 0.75 0.86
24 A" 989 924 0.00 3.08 0.75 0.86
25 A" 969 905 1.27 0.06 0.75 0.86
26 A" 335 313 1.55 1.31 0.75 0.86
27 A" 261 244 0.04 0.06 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 21566.1 cm-1
Scaled (by 0.9344) Zero Point Vibrational Energy (zpe) 20151.4 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/6-31G**
ABC
0.27201 0.15317 0.10769

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/6-31G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Cl1 -0.877 1.017 0.000
C2 0.561 -0.064 0.000
C3 0.561 -0.902 1.262
C4 0.561 -0.902 -1.262
H5 1.418 0.606 0.000
H6 1.452 -1.528 1.282
H7 1.452 -1.528 -1.282
H8 0.558 -0.275 2.150
H9 0.558 -0.275 -2.150
H10 -0.316 -1.545 1.290
H11 -0.316 -1.545 -1.290

Atom - Atom Distances (Å)
  Cl1 C2 C3 C4 H5 H6 H7 H8 H9 H10 H11
Cl11.79892.70982.70982.33123.68013.68012.88942.88942.92262.9226
C21.79891.51501.51501.08812.14002.14002.15992.15992.15042.1504
C32.70981.51502.52482.14531.08922.76731.08643.46911.08772.7740
C42.70981.51502.52482.14532.76731.08923.46911.08642.77401.0877
H52.33121.08812.14532.14532.48982.48982.47712.47713.04903.0490
H63.68012.14001.08922.76732.48982.56331.76713.76071.76793.1204
H73.68012.14002.76731.08922.48982.56333.76071.76713.12041.7679
H82.88942.15991.08643.46912.47711.76713.76074.29911.76543.7690
H92.88942.15993.46911.08642.47713.76071.76714.29913.76901.7654
H102.92262.15041.08772.77403.04901.76793.12041.76543.76902.5793
H112.92262.15042.77401.08773.04903.12041.76793.76901.76542.5793

picture of Propane, 2-chloro- state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Cl1 C2 C3 109.413 Cl1 C2 C4 109.413
Cl1 C3 H5 55.946 C2 C3 H6 109.433
C2 C3 H8 111.182 C2 C3 H10 110.349
C2 C4 H7 109.433 C2 C4 H9 111.182
C2 C4 H11 110.349 C3 C2 C4 112.869
C3 C2 H5 109.913 C4 C2 H5 109.913
H6 C3 H8 108.629 H6 C3 H10 108.603
H7 C4 H9 108.629 H7 C4 H11 108.603
H8 C3 H10 108.587 H9 C4 H11 108.587
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability