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: B3PW91/6-31G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B3PW91/6-31G
 hartrees
Energy at 0K-578.606291
Energy at 298.15K-578.613951
HF Energy-578.606291
Nuclear repulsion energy163.037235
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 B3PW91/6-31G
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A' 3177 3042 28.46      
2 A' 3150 3016 26.53      
3 A' 3132 2999 1.69      
4 A' 3059 2930 21.82      
5 A' 1548 1482 13.05      
6 A' 1532 1467 11.35      
7 A' 1467 1405 9.88      
8 A' 1302 1247 40.45      
9 A' 1219 1167 27.72      
10 A' 1103 1057 19.42      
11 A' 911 873 11.27      
12 A' 577 553 38.58      
13 A' 423 405 3.67      
14 A' 336 322 3.90      
15 A' 264 253 0.24      
16 A" 3170 3036 11.67      
17 A" 3140 3007 4.17      
18 A" 3055 2925 10.32      
19 A" 1528 1464 1.52      
20 A" 1518 1454 3.79      
21 A" 1451 1390 19.55      
22 A" 1395 1336 3.65      
23 A" 1183 1133 5.91      
24 A" 984 942 0.83      
25 A" 975 934 2.20      
26 A" 314 300 2.44      
27 A" 236 226 0.11      

Unscaled Zero Point Vibrational Energy (zpe) 21073.0 cm-1
Scaled (by 0.9577) Zero Point Vibrational Energy (zpe) 20181.6 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 B3PW91/6-31G
ABC
0.26611 0.14336 0.10216

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/6-31G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Cl1 -0.949 1.021 0.000
C2 0.611 -0.081 0.000
C3 0.611 -0.902 1.275
C4 0.611 -0.902 -1.275
H5 1.417 0.656 0.000
H6 1.528 -1.504 1.318
H7 1.528 -1.504 -1.318
H8 0.577 -0.265 2.162
H9 0.577 -0.265 -2.162
H10 -0.247 -1.582 1.303
H11 -0.247 -1.582 -1.303

Atom - Atom Distances (Å)
  Cl1 C2 C3 C4 H5 H6 H7 H8 H9 H10 H11
Cl11.90982.78532.78532.39353.77443.77442.94202.94202.99392.9939
C21.90981.51681.51681.09252.14522.14522.17052.17052.16412.1641
C32.78531.51682.55092.16921.09782.81581.09303.49671.09452.8006
C42.78531.51682.55092.16922.81581.09783.49671.09302.80061.0945
H52.39351.09252.16922.16922.53272.53272.49612.49613.07783.0778
H63.77442.14521.09782.81582.53272.63591.77613.81501.77693.1662
H73.77442.14522.81581.09782.53272.63593.81501.77613.16621.7769
H82.94202.17051.09303.49672.49611.77613.81504.32501.77533.7973
H92.94202.17053.49671.09302.49613.81501.77614.32503.79731.7753
H102.99392.16411.09452.80063.07781.77693.16621.77533.79732.6053
H112.99392.16412.80061.09453.07783.16621.77693.79731.77532.6053

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 108.204 Cl1 C2 C4 108.204
Cl1 C3 H5 56.129 C2 C3 H6 109.211
C2 C3 H8 111.509 C2 C3 H10 110.909
C2 C4 H7 109.211 C2 C4 H9 111.509
C2 C4 H11 110.909 C3 C2 C4 114.462
C3 C2 H5 111.432 C4 C2 H5 111.432
H6 C3 H8 108.326 H6 C3 H10 108.295
H7 C4 H9 108.326 H7 C4 H11 108.295
H8 C3 H10 108.503 H9 C4 H11 108.503
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/6-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Cl -0.080      
2 C -0.326      
3 C -0.455      
4 C -0.455      
5 H 0.220      
6 H 0.172      
7 H 0.172      
8 H 0.190      
9 H 0.190      
10 H 0.186      
11 H 0.186      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.257 -1.823 0.000 2.901
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -33.057 1.092 0.000
y 1.092 -33.747 0.000
z 0.000 0.000 -31.943
Traceless
 xyz
x -0.212 1.092 0.000
y 1.092 -1.247 0.000
z 0.000 0.000 1.459
Polar
3z2-r22.918
x2-y20.690
xy1.092
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.576 -1.493 0.000
y -1.493 6.294 0.000
z 0.000 0.000 5.600


<r2> (average value of r2) Å2
<r2> 123.408
(<r2>)1/2 11.109