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All results from a given calculation for CH3CHClCH2CH3 (Butane, 2-chloro-)

using model chemistry: HF/CEP-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at HF/CEP-31G*
 hartrees
Energy at 0K-41.886302
Energy at 298.15K-41.896436
Nuclear repulsion energy104.576658
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 HF/CEP-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 3326 2987 104.44      
2 A 3314 2976 72.50      
3 A 3309 2972 5.69      
4 A 3294 2958 25.28      
5 A 3283 2948 76.51      
6 A 3267 2934 8.13      
7 A 3229 2900 59.90      
8 A 3223 2894 44.70      
9 A 3214 2887 36.87      
10 A 1634 1467 4.47      
11 A 1626 1460 7.83      
12 A 1624 1458 0.86      
13 A 1616 1451 4.80      
14 A 1608 1444 0.39      
15 A 1562 1403 0.65      
16 A 1551 1393 2.00      
17 A 1524 1369 0.01      
18 A 1440 1293 27.39      
19 A 1429 1283 11.61      
20 A 1370 1231 24.72      
21 A 1276 1146 7.23      
22 A 1216 1092 1.44      
23 A 1187 1066 5.42      
24 A 1106 993 2.46      
25 A 1085 975 6.13      
26 A 1039 933 5.51      
27 A 915 822 13.57      
28 A 846 760 13.01      
29 A 662 594 42.27      
30 A 481 432 1.82      
31 A 408 367 2.91      
32 A 345 310 1.18      
33 A 270 242 0.23      
34 A 246 221 0.15      
35 A 228 205 1.04      
36 A 119 107 0.28      

Unscaled Zero Point Vibrational Energy (zpe) 28935.6 cm-1
Scaled (by 0.898) Zero Point Vibrational Energy (zpe) 25984.2 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 HF/CEP-31G*
ABC
0.15219 0.10150 0.06591

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/CEP-31G*

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.757 -0.843 0.004
H2 1.922 -0.849 -1.073
H3 2.622 -0.391 0.486
H4 1.666 -1.876 0.348
C5 0.473 -0.080 0.351
H6 0.335 -0.043 1.427
Cl7 0.688 1.667 -0.139
C8 -0.773 -0.671 -0.327
H9 -0.784 -1.737 -0.081
H10 -0.658 -0.595 -1.409
C11 -2.104 -0.038 0.118
H12 -2.232 -0.117 1.200
H13 -2.153 1.016 -0.153
H14 -2.942 -0.551 -0.357

Atom - Atom Distances (Å)
  C1 H2 H3 H4 C5 H6 Cl7 C8 H9 H10 C11 H12 H13 H14
C11.08991.08851.09271.53302.16492.73172.55672.69492.80883.94504.22654.33204.7211
H21.08991.76931.77202.17273.06962.95422.80223.01642.61474.27624.79164.57554.9254
H31.08851.76931.77122.17582.49762.89283.50193.70593.79364.75314.91345.01915.6293
H41.09271.77201.77122.15572.50933.70762.80242.49123.18254.20004.35994.81654.8456
C51.53302.17272.17582.15571.08561.82761.53612.12372.15422.58732.83472.88993.5186
H62.16493.06962.49762.50931.08562.34542.16752.52913.05512.76782.57753.13193.7652
Cl72.73172.95422.89283.70761.82762.34542.76333.70902.92243.28123.67422.91494.2593
C82.55672.80223.50192.80241.53612.16752.76331.09371.09071.53952.18332.18672.1724
H92.69493.01643.70592.49122.12372.52913.70901.09371.75592.16022.52173.07502.4771
H102.80882.61473.79363.18252.15423.05512.92241.09071.75592.17493.08402.53102.5144
C113.94504.27624.75314.20002.58732.76783.28121.53952.16022.17491.09281.08911.0913
H124.22654.79164.91344.35992.83472.57753.67422.18332.52173.08401.09281.76671.7656
H134.33204.57555.01914.81652.88993.13192.91492.18673.07502.53101.08911.76671.7659
H144.72114.92545.62934.84563.51863.76524.25932.17242.47712.51441.09131.76561.7659

picture of Butane, 2-chloro- state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C5 H6 110.366 C1 C5 Cl7 108.434
C1 C5 C8 112.826 H2 C1 H3 108.621
H2 C1 H4 108.558 H2 C1 C5 110.725
H3 C1 H4 108.593 H3 C1 C5 111.054
H4 C1 C5 109.227 C5 C8 H9 106.497
C5 C8 H10 109.008 C5 C8 C11 114.540
H6 C5 Cl7 104.332 H6 C5 C8 110.353
Cl7 C5 C8 110.172 C8 C11 H12 110.944
C8 C11 H13 111.431 C8 C11 H14 110.162
H9 C8 H10 106.999 H9 C8 C11 109.066
H10 C8 C11 110.400 H12 C11 H13 108.132
H12 C11 H14 107.882 H13 C11 H14 108.168
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/CEP-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.265      
2 H 0.116      
3 H 0.160      
4 H 0.096      
5 C -0.118      
6 H 0.146      
7 Cl -0.242      
8 C -0.125      
9 H 0.077      
10 H 0.113      
11 C -0.308      
12 H 0.092      
13 H 0.122      
14 H 0.135      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.392 -2.519 0.497 2.598
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -39.127 -1.529 0.540
y -1.529 -42.155 -0.152
z 0.540 -0.152 -38.330
Traceless
 xyz
x 1.116 -1.529 0.540
y -1.529 -3.426 -0.152
z 0.540 -0.152 2.311
Polar
3z2-r24.622
x2-y23.028
xy-1.529
xz0.540
yz-0.152


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.690 0.097 -0.094
y 0.097 8.487 -0.409
z -0.094 -0.409 6.138


<r2> (average value of r2) Å2
<r2> 135.800
(<r2>)1/2 11.653