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 CH2ClCH2CH3 (Propane, 1-chloro-)

using model chemistry: B3PW91/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 no anti 1A'
1 2 yes gauche 1A

Conformer 1 (anti)

Jump to S1C2
Energy calculated at B3PW91/3-21G
 hartrees
Energy at 0K-575.805928
Energy at 298.15K-575.813551
Nuclear repulsion energy155.656126
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 B3PW91/3-21G
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A' 3136 3014 24.74      
2 A' 3129 3007 6.69      
3 A' 3085 2965 5.87      
4 A' 3056 2937 17.55      
5 A' 1562 1502 10.78      
6 A' 1546 1486 5.11      
7 A' 1524 1465 3.49      
8 A' 1457 1400 11.53      
9 A' 1382 1329 5.55      
10 A' 1293 1243 22.26      
11 A' 1140 1095 3.40      
12 A' 1027 987 5.69      
13 A' 918 883 16.52      
14 A' 692 665 45.65      
15 A' 354 340 5.19      
16 A' 232 223 2.95      
17 A" 3205 3080 8.44      
18 A" 3141 3019 22.73      
19 A" 3116 2995 2.96      
20 A" 1560 1500 12.44      
21 A" 1358 1305 0.08      
22 A" 1270 1221 0.00      
23 A" 1097 1054 1.64      
24 A" 890 855 0.36      
25 A" 771 741 7.90      
26 A" 236 227 0.07      
27 A" 116 111 1.87      

Unscaled Zero Point Vibrational Energy (zpe) 21145.8 cm-1
Scaled (by 0.9612) Zero Point Vibrational Energy (zpe) 20325.4 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 B3PW91/3-21G
ABC
0.83860 0.07615 0.07270

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/3-21G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.615 0.000
C2 0.965 -0.558 0.000
C3 2.420 -0.045 0.000
Cl4 -1.787 -0.024 0.000
H5 0.077 1.228 0.899
H6 0.077 1.228 -0.899
H7 0.782 -1.177 -0.886
H8 0.782 -1.177 0.886
H9 3.119 -0.889 0.000
H10 2.619 0.564 -0.890
H11 2.619 0.564 0.890

Atom - Atom Distances (Å)
  C1 C2 C3 Cl4 H5 H6 H7 H8 H9 H10 H11
C11.51952.50851.89841.09061.09062.14662.14663.46292.76652.7665
C21.51951.54272.80362.18792.18791.09581.09582.17942.18812.1881
C32.50851.54274.20732.81382.81382.17902.17901.09571.09671.0967
Cl41.89842.80364.20732.41932.41932.95192.95194.98214.53374.5337
H51.09062.18792.81382.41931.79833.07652.50583.81343.17822.6271
H61.09062.18792.81382.41931.79832.50583.07653.81342.62713.1782
H72.14661.09582.17902.95193.07652.50581.77172.51612.53113.0917
H82.14661.09582.17902.95192.50583.07651.77172.51613.09172.5311
H93.46292.17941.09574.98213.81343.81342.51612.51611.77571.7757
H102.76652.18811.09674.53373.17822.62712.53113.09171.77571.7792
H112.76652.18811.09674.53372.62713.17823.09172.53111.77571.7792

picture of Propane, 1-chloro- state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 110.000 C1 C2 H7 109.260
C1 C2 H8 109.260 C2 C1 Cl4 109.728
C2 C1 H5 112.881 C2 C1 H6 112.881
C2 C3 H9 110.233 C2 C3 H10 110.863
C2 C3 H11 110.863 C3 C2 H7 110.198
C3 C2 H8 110.198 Cl4 C1 H5 104.826
Cl4 C1 H6 104.826 H5 C1 H6 111.060
H7 C2 H8 107.886 H9 C3 H10 108.182
H9 C3 H11 108.182 H10 C3 H11 108.427
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.563      
2 C -0.440      
3 C -0.621      
4 Cl -0.064      
5 H 0.272      
6 H 0.272      
7 H 0.243      
8 H 0.243      
9 H 0.227      
10 H 0.216      
11 H 0.216      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.834 0.615 0.000 2.900
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -36.409 -0.240 0.000
y -0.240 -32.253 0.000
z 0.000 0.000 -32.630
Traceless
 xyz
x -3.967 -0.240 0.000
y -0.240 2.266 0.000
z 0.000 0.000 1.701
Polar
3z2-r23.403
x2-y2-4.156
xy-0.240
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 8.130 0.439 0.000
y 0.439 4.905 0.000
z 0.000 0.000 4.612


<r2> (average value of r2) Å2
<r2> 156.947
(<r2>)1/2 12.528

Conformer 2 (gauche)

Jump to S1C1
Energy calculated at B3PW91/3-21G
 hartrees
Energy at 0K-575.806311
Energy at 298.15K-575.814091
Nuclear repulsion energy160.201863
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 B3PW91/3-21G
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A 3205 3080 5.94      
2 A 3149 3027 12.65      
3 A 3136 3015 34.65      
4 A 3130 3009 3.31      
5 A 3105 2985 2.26      
6 A 3061 2942 15.82      
7 A 3045 2927 12.40      
8 A 1566 1505 9.89      
9 A 1559 1498 11.26      
10 A 1526 1467 10.31      
11 A 1521 1462 4.82      
12 A 1459 1402 13.70      
13 A 1404 1350 0.46      
14 A 1358 1305 21.00      
15 A 1295 1245 9.16      
16 A 1258 1209 0.39      
17 A 1124 1080 0.41      
18 A 1093 1050 2.04      
19 A 1057 1016 3.83      
20 A 919 884 8.83      
21 A 868 834 8.98      
22 A 810 779 24.20      
23 A 613 589 27.62      
24 A 428 411 2.46      
25 A 299 287 1.21      
26 A 224 215 1.74      
27 A 142 137 1.19      

Unscaled Zero Point Vibrational Energy (zpe) 21176.8 cm-1
Scaled (by 0.9612) Zero Point Vibrational Energy (zpe) 20355.2 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 B3PW91/3-21G
ABC
0.37551 0.10846 0.09263

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/3-21G

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.118 0.940 0.318
C2 -1.177 0.553 -0.376
C3 -1.767 -0.762 0.154
Cl4 1.471 -0.341 -0.067
H5 0.532 1.883 -0.039
H6 0.035 0.931 1.406
H7 -1.889 1.376 -0.208
H8 -1.001 0.486 -1.456
H9 -2.694 -1.010 -0.373
H10 -1.052 -1.578 0.009
H11 -1.989 -0.682 1.225

Atom - Atom Distances (Å)
  C1 C2 C3 Cl4 H5 H6 H7 H8 H9 H10 H11
C11.51922.54461.90231.09021.09092.12042.14553.49122.79362.8095
C21.51921.53582.81212.19152.18781.10111.09642.17842.16962.1792
C32.54461.53583.27283.50972.77152.17242.17651.09551.09491.0970
Cl41.90232.81213.27282.41412.41873.77622.95334.23012.81113.7097
H51.09022.19153.50972.41411.79962.47922.51164.34623.80673.8122
H61.09092.18782.77152.41871.79962.55063.07563.79263.07122.5949
H72.12041.10112.17243.77622.47922.55061.77152.52393.07872.5104
H82.14551.09642.17652.95332.51163.07561.77152.50572.53163.0871
H93.49122.17841.09554.23014.34623.79262.52392.50571.77971.7779
H102.79362.16961.09492.81113.80673.07123.07872.53161.77971.7786
H112.80952.17921.09703.70973.81222.59492.51043.08711.77791.7786

picture of Propane, 1-chloro- state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 112.800 C1 C2 H7 106.955
C1 C2 H8 109.159 C2 C1 Cl4 110.048
C2 C1 H5 113.222 C2 C1 H6 112.870
C2 C3 H9 110.647 C2 C3 H10 109.988
C2 C3 H11 110.622 C3 C2 H7 109.846
C3 C2 H8 110.444 Cl4 C1 H5 104.247
Cl4 C1 H6 104.530 H5 C1 H6 111.197
H7 C2 H8 107.441 H9 C3 H10 108.686
H9 C3 H11 108.363 H10 C3 H11 108.472
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.558      
2 C -0.447      
3 C -0.617      
4 Cl -0.071      
5 H 0.274      
6 H 0.271      
7 H 0.234      
8 H 0.244      
9 H 0.217      
10 H 0.243      
11 H 0.209      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -2.175 1.580 0.372 2.714
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -35.394 0.640 0.248
y 0.640 -31.594 0.416
z 0.248 0.416 -32.616
Traceless
 xyz
x -3.289 0.640 0.248
y 0.640 2.411 0.416
z 0.248 0.416 0.878
Polar
3z2-r21.756
x2-y2-3.800
xy0.640
xz0.248
yz0.416


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.889 -0.859 -0.207
y -0.859 5.739 0.191
z -0.207 0.191 4.725


<r2> (average value of r2) Å2
<r2> 132.403
(<r2>)1/2 11.507