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All results from a given calculation for C5H10 (Cyclopentane)

using model chemistry: wB97X-D/6-311G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at wB97X-D/6-311G**
 hartrees
Energy at 0K-196.547523
Energy at 298.15K 
HF Energy-196.547523
Nuclear repulsion energy187.733500
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 wB97X-D/6-311G**
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 3129 2993 101.41      
2 A 3113 2977 22.51      
3 A 3112 2977 28.08      
4 A 3108 2973 14.85      
5 A 3098 2964 38.30      
6 A 3076 2943 54.60      
7 A 3059 2926 27.69      
8 A 3054 2921 33.00      
9 A 3046 2914 40.08      
10 A 3041 2909 20.00      
11 A 1532 1465 0.25      
12 A 1507 1441 5.12      
13 A 1504 1439 5.42      
14 A 1497 1431 5.81      
15 A 1489 1424 0.37      
16 A 1363 1304 0.26      
17 A 1357 1298 0.35      
18 A 1354 1295 0.03      
19 A 1336 1277 0.94      
20 A 1311 1254 0.03      
21 A 1290 1234 0.93      
22 A 1249 1195 0.21      
23 A 1238 1184 0.24      
24 A 1213 1160 0.25      
25 A 1195 1143 0.00      
26 A 1071 1025 0.03      
27 A 1054 1008 0.00      
28 A 1014 970 0.69      
29 A 980 937 1.32      
30 A 925 885 2.45      
31 A 918 878 2.61      
32 A 900 860 0.64      
33 A 881 842 0.87      
34 A 833 797 0.17      
35 A 776 742 0.92      
36 A 623 596 0.09      
37 A 557 533 1.29      
38 A 271 259 0.01      
39 A 28i 27i 0.01      

Unscaled Zero Point Vibrational Energy (zpe) 31022.8 cm-1
Scaled (by 0.9565) Zero Point Vibrational Energy (zpe) 29673.3 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 wB97X-D/6-311G**
ABC
0.21741 0.21723 0.12556

See section I.F.4 to change rotational constant units
Geometric Data calculated at wB97X-D/6-311G**

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.069 -0.654 0.256
C2 -0.454 1.204 0.126
C3 -1.299 -0.092 0.015
C4 -0.284 -1.249 -0.155
C5 0.978 0.790 -0.243
H6 -0.472 1.577 1.155
H7 -0.834 2.006 -0.510
H8 -1.988 -0.049 -0.831
H9 -1.908 -0.233 0.911
H10 -0.240 -1.556 -1.205
H11 -0.553 -2.132 0.428
H12 1.919 -1.202 -0.157
H13 1.170 -0.662 1.348
H14 1.110 0.809 -1.330
H15 1.735 1.447 0.193

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11 H12 H13 H14 H15
C12.40672.44551.53421.53032.85683.35963.30093.07722.15892.20131.09261.09602.15882.2050
C22.40671.55082.47511.53631.09411.09212.19972.18953.07213.35163.39192.75902.17372.2032
C32.44551.55081.54822.45502.18312.21231.09231.09252.18032.21123.40822.86232.90223.4057
C41.53422.47511.54822.39913.12033.32022.19112.19231.09451.09222.20352.17172.74933.3856
C51.53031.53632.45502.39912.16252.19883.13823.27202.81273.36632.20452.16171.09581.0925
H62.85681.09412.18313.12032.16251.75742.98052.32283.92903.78063.89402.78313.04452.4109
H73.35961.09212.21233.32022.19881.75742.37872.86153.67774.25284.24223.81912.42552.7208
H83.30092.19971.09232.19113.13822.98052.37871.75322.33882.82574.12933.88513.25334.1404
H93.07722.18951.09252.19233.27202.32282.86151.75323.00182.38274.08983.13803.90084.0749
H102.15893.07212.18031.09452.81273.92903.67772.33883.00181.75932.42533.04962.72603.8559
H112.20133.35162.21121.09223.36633.78064.25282.82572.38271.75932.70532.44463.80904.2544
H121.09263.39193.40822.20352.20453.89404.24224.12934.08982.42532.70531.76582.46502.6786
H131.09602.75902.86232.17172.16172.78313.81913.88513.13803.04962.44461.76583.05602.4700
H142.15882.17372.90222.74931.09583.04452.42553.25333.90082.72603.80902.46503.05601.7653
H152.20502.20323.40573.38561.09252.41092.72084.14044.07493.85594.25442.67862.47001.7653

picture of Cyclopentane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C4 C3 105.002 C1 C4 H10 109.284
C1 C4 H11 112.811 C1 C5 C2 103.401
C1 C5 H14 109.467 C1 C5 H15 113.373
C2 C3 C4 106.005 C2 C3 H8 111.484
C2 C3 H9 110.654 C2 C5 H14 110.224
C2 C5 H15 112.792 C3 C2 C5 105.354
C3 C2 H6 110.064 C3 C2 H7 112.509
C3 C4 H10 109.996 C3 C4 H11 112.598
C4 C1 C5 103.049 C4 C1 H12 112.968
C4 C1 H13 110.199 C4 C3 H8 110.980
C4 C3 H9 111.060 C5 C1 H12 113.330
C5 C1 H13 109.679 C5 C2 H6 109.449
C5 C2 H7 112.461 H6 C2 H7 107.009
H8 C3 H9 106.730 H10 C4 H11 107.137
H12 C1 H13 107.577 H14 C5 H15 107.547
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at wB97X-D/6-311G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.246      
2 C -0.246      
3 C -0.243      
4 C -0.244      
5 C -0.243      
6 H 0.123      
7 H 0.124      
8 H 0.124      
9 H 0.124      
10 H 0.121      
11 H 0.123      
12 H 0.123      
13 H 0.119      
14 H 0.119      
15 H 0.123      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.006 -0.013 0.002 0.015
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -33.772 0.007 -0.014
y 0.007 -33.785 -0.037
z -0.014 -0.037 -32.594
Traceless
 xyz
x -0.583 0.007 -0.014
y 0.007 -0.602 -0.037
z -0.014 -0.037 1.185
Polar
3z2-r22.369
x2-y20.013
xy0.007
xz-0.014
yz-0.037


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 8.377 0.001 0.010
y 0.001 8.370 0.019
z 0.010 0.019 7.476


<r2> (average value of r2) Å2
<r2> 115.390
(<r2>)1/2 10.742