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 CH3CCl(CH3)CH3 (Propane, 2-chloro-2-methyl-)

using model chemistry: MP2/LANL2DZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 1A1
Energy calculated at MP2/LANL2DZ
 hartrees
Energy at 0K-171.764795
Energy at 298.15K-171.774579
HF Energy-171.375150
Nuclear repulsion energy169.488577
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/LANL2DZ
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A 3128 3012 59.03      
2 A 3023 2912 32.86      
3 A 1550 1493 18.02      
4 A 1474 1419 2.36      
5 A 1226 1180 63.73      
6 A 811 781 8.36      
7 A 551 530 21.00      
8 A 367 354 4.27      
9 A 3140 3024 0.00      
10 A 1512 1456 0.00      
11 A 1004 967 0.00      
12 A 208 200 0.00      
13 A 3146 3030 40.10      
13 A 3146 3030 40.10      
14 A 3120 3005 9.14      
14 A 3120 3005 9.14      
15 A 3019 2908 21.49      
15 A 3019 2908 21.49      
16 A 1534 1477 8.80      
16 A 1534 1477 8.80      
17 A 1526 1470 1.81      
17 A 1526 1470 1.81      
18 A 1449 1395 16.12      
18 A 1449 1395 16.12      
19 A 1297 1249 15.12      
19 A 1297 1249 15.12      
20 A 1080 1040 0.00      
20 A 1080 1040 0.00      
21 A 959 923 0.21      
21 A 959 923 0.21      
22 A 403 388 0.53      
22 A 403 388 0.53      
23 A 294 283 1.05      
23 A 294 283 1.05      
24 A 277 267 0.06      
24 A 277 267 0.06      

Unscaled Zero Point Vibrational Energy (zpe) 27099.4 cm-1
Scaled (by 0.9631) Zero Point Vibrational Energy (zpe) 26099.4 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/LANL2DZ
ABC
0.14545 0.09421 0.09421

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/LANL2DZ

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -0.397
Cl2 0.000 0.000 1.533
C3 0.000 1.486 -0.838
C4 1.287 -0.743 -0.838
C5 -1.287 -0.743 -0.838
H6 0.000 1.537 -1.944
H7 1.331 -0.768 -1.944
H8 -1.331 -0.768 -1.944
H9 0.896 2.007 -0.459
H10 -0.896 2.007 -0.459
H11 1.290 -1.779 -0.459
H12 2.186 -0.227 -0.459
H13 -2.186 -0.227 -0.459
H14 -1.290 -1.779 -0.459

Atom - Atom Distances (Å)
  C1 Cl2 C3 C4 C5 H6 H7 H8 H9 H10 H11 H12 H13 H14
C11.93031.55051.55051.55052.18052.18052.18052.19872.19872.19872.19872.19872.1987
Cl21.93032.79872.79872.79873.80163.80163.80162.96622.96622.96622.96622.96622.9662
C31.55052.79872.57472.57471.10712.84232.84231.10341.10343.53192.80352.80353.5319
C41.55052.79872.57472.57472.84231.10712.84232.80353.53191.10341.10343.53192.8035
C51.55052.79872.57472.57472.84232.84231.10713.53192.80352.80353.53191.10341.1034
H62.18053.80161.10712.84232.84232.66182.66181.79711.79713.85583.17753.17753.8558
H72.18053.80162.84231.10712.84232.66182.66183.17753.85581.79711.79713.85583.1775
H82.18053.80162.84232.84231.10712.66182.66183.85583.17753.17753.85581.79711.7971
H92.19872.96621.10342.80353.53191.79713.17753.85581.79213.80672.57993.80674.3720
H102.19872.96621.10343.53192.80351.79713.85583.17751.79214.37203.80672.57993.8067
H112.19872.96623.53191.10342.80353.85581.79713.17753.80674.37201.79213.80672.5799
H122.19872.96622.80351.10343.53193.17751.79713.85582.57993.80671.79214.37203.8067
H132.19872.96622.80353.53191.10343.17753.85581.79713.80672.57993.80674.37201.7921
H142.19872.96623.53192.80351.10343.85583.17751.79714.37203.80672.57993.80671.7921

picture of Propane, 2-chloro-2-methyl- state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C3 H6 109.126 C1 C3 H9 110.754
C1 C3 H10 110.754 C1 C4 H7 109.126
C1 C4 H11 110.754 C1 C4 H12 110.754
C1 C5 H8 109.126 C1 C5 H13 110.754
C1 C5 H14 110.754 Cl2 C1 C3 106.522
Cl2 C1 C4 106.522 Cl2 C1 C5 106.522
C3 C1 C4 112.253 C3 C1 C5 112.253
C4 C1 C5 112.253 H6 C3 H9 108.779
H6 C3 H10 108.779 H7 C4 H11 108.779
H7 C4 H12 108.780 H8 C5 H13 108.780
H8 C5 H14 108.779 H9 C3 H10 108.600
H11 C4 H12 108.600 H13 C5 H14 108.600
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability