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All results from a given calculation for C5H10 (Cyclopentane)

using model chemistry: B1B95/6-31G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at B1B95/6-31G**
 hartrees
Energy at 0K-196.448857
Energy at 298.15K-196.460447
HF Energy-196.448857
Nuclear repulsion energy188.235891
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 B1B95/6-31G**
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 3142 3000 88.45      
2 A 3129 2987 15.78      
3 A 3126 2985 25.90      
4 A 3122 2981 16.03      
5 A 3115 2974 30.63      
6 A 3087 2948 46.17      
7 A 3073 2934 27.30      
8 A 3069 2930 25.33      
9 A 3062 2923 35.87      
10 A 3057 2919 20.86      
11 A 1530 1461 0.06      
12 A 1502 1434 3.63      
13 A 1500 1433 2.10      
14 A 1495 1427 4.45      
15 A 1488 1421 0.10      
16 A 1356 1295 0.13      
17 A 1353 1292 0.13      
18 A 1350 1289 0.06      
19 A 1330 1270 0.61      
20 A 1299 1241 0.01      
21 A 1286 1227 0.98      
22 A 1241 1185 0.31      
23 A 1234 1178 0.36      
24 A 1205 1150 0.35      
25 A 1191 1137 0.01      
26 A 1071 1022 0.03      
27 A 1051 1004 0.00      
28 A 1001 956 0.56      
29 A 967 923 1.52      
30 A 932 890 1.57      
31 A 923 881 1.37      
32 A 906 865 0.51      
33 A 878 839 0.73      
34 A 827 789 0.37      
35 A 767 732 1.19      
36 A 605 578 0.23      
37 A 536 512 1.35      
38 A 274 262 0.00      
39 A 26 24 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 31052.0 cm-1
Scaled (by 0.9548) Zero Point Vibrational Energy (zpe) 29648.5 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 B1B95/6-31G**
ABC
0.21866 0.21834 0.12673

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/6-31G**

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.040 0.692 -0.252
C2 -0.390 -1.212 -0.162
C3 -1.297 0.024 0.017
C4 -0.341 1.235 0.128
C5 1.000 -0.741 0.268
H6 -0.358 -1.502 -1.217
H7 -0.742 -2.083 0.395
H8 -1.914 -0.065 0.915
H9 -1.989 0.129 -0.822
H10 -0.316 1.598 1.160
H11 -0.650 2.078 -0.493
H12 1.861 1.287 0.156
H13 1.155 0.681 -1.342
H14 1.077 -0.739 1.362
H15 1.806 -1.371 -0.116

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11 H12 H13 H14 H15
C12.38282.44601.53161.52562.77473.36093.26513.13312.15682.19911.09291.09612.15752.2051
C22.38281.54392.46461.52861.09481.09252.19062.18873.10623.31713.37802.71282.16752.2018
C32.44601.54391.54732.43412.17602.21141.09271.09242.17892.21373.40462.87992.83363.4051
C41.53162.46461.54732.39213.04973.35282.18732.20061.09431.09232.20292.16952.72593.3852
C51.52561.52862.43412.39212.15132.20203.05993.29792.82783.35442.20632.15381.09631.0930
H62.77471.09482.17603.04972.15131.75683.00542.33983.90663.66413.81912.65823.04862.4315
H73.36091.09252.21143.35282.20201.75682.39052.81573.78344.25604.26473.77542.45952.6944
H83.26512.19061.09272.18733.05993.00542.39051.74962.31942.85934.08103.88193.09844.0749
H93.13312.18871.09242.20063.29792.33982.81571.74962.98122.38764.13773.23413.86314.1410
H102.15683.10622.17891.09432.82783.90663.78342.31942.98121.75432.41743.04392.72803.8657
H112.19913.31712.21371.09233.35443.66414.25602.85932.38761.75432.71222.43573.79004.2512
H121.09293.37803.40462.20292.20633.81914.26474.08104.13772.41742.71221.76362.48452.6722
H131.09612.71282.87992.16952.15382.65823.77543.88193.23413.04392.43571.76363.05482.4770
H142.15752.16752.83362.72591.09633.04862.45953.09843.86312.72803.79002.48453.05481.7647
H152.20512.20183.40513.38521.09302.43152.69444.07494.14103.86574.25122.67222.47701.7647

picture of Cyclopentane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C4 C3 105.201 C1 C4 H10 109.316
C1 C4 H11 112.808 C1 C5 C2 102.553
C1 C5 H14 109.663 C1 C5 H15 113.701
C2 C3 C4 105.743 C2 C3 H8 111.213
C2 C3 H9 111.081 C2 C5 H14 110.240
C2 C5 H15 113.208 C3 C2 C5 104.786
C3 C2 H6 109.934 C3 C2 H7 112.909
C3 C4 H10 109.957 C3 C4 H11 112.853
C4 C1 C5 102.971 C4 C1 H12 113.087
C4 C1 H13 110.203 C4 C3 H8 110.710
C4 C3 H9 111.792 C5 C1 H12 113.806
C5 C1 H13 109.380 C5 C2 H6 109.058
C5 C2 H7 113.255 H6 C2 H7 106.872
H8 C3 H9 106.391 H10 C4 H11 106.702
H12 C1 H13 107.347 H14 C5 H15 107.431
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.229      
2 C -0.230      
3 C -0.230      
4 C -0.231      
5 C -0.230      
6 H 0.117      
7 H 0.113      
8 H 0.117      
9 H 0.117      
10 H 0.118      
11 H 0.114      
12 H 0.112      
13 H 0.116      
14 H 0.115      
15 H 0.112      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.002 0.001 0.000 0.002
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -33.137 0.004 0.003
y 0.004 -33.124 -0.012
z 0.003 -0.012 -32.172
Traceless
 xyz
x -0.489 0.004 0.003
y 0.004 -0.469 -0.012
z 0.003 -0.012 0.958
Polar
3z2-r21.917
x2-y2-0.013
xy0.004
xz0.003
yz-0.012


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.778 0.003 -0.002
y 0.003 7.787 0.009
z -0.002 0.009 7.076


<r2> (average value of r2) Å2
<r2> 114.401
(<r2>)1/2 10.696