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All results from a given calculation for C5H10 (Cyclopentane)

using model chemistry: LSDA/3-21G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at LSDA/3-21G*
 hartrees
Energy at 0K-194.407207
Energy at 298.15K-194.418797
HF Energy-194.407207
Nuclear repulsion energy187.503430
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 LSDA/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 3077 3022 41.39      
2 A 3062 3007 10.25      
3 A 3062 3007 12.72      
4 A 3057 3002 6.59      
5 A 3047 2992 16.38      
6 A 3017 2962 27.32      
7 A 3001 2947 13.29      
8 A 2996 2942 19.78      
9 A 2990 2936 20.21      
10 A 2983 2929 9.82      
11 A 1506 1479 1.35      
12 A 1483 1456 16.66      
13 A 1478 1451 8.74      
14 A 1472 1446 12.32      
15 A 1468 1442 3.80      
16 A 1324 1300 0.90      
17 A 1320 1296 0.16      
18 A 1318 1295 2.67      
19 A 1306 1282 5.09      
20 A 1295 1272 0.00      
21 A 1274 1251 2.41      
22 A 1236 1214 0.05      
23 A 1205 1183 0.41      
24 A 1185 1164 0.45      
25 A 1148 1127 0.02      
26 A 1058 1039 0.10      
27 A 1049 1030 0.00      
28 A 1000 982 1.33      
29 A 967 949 2.54      
30 A 923 906 2.56      
31 A 907 891 3.74      
32 A 895 879 2.27      
33 A 872 856 1.83      
34 A 823 808 0.74      
35 A 760 747 2.70      
36 A 610 599 0.46      
37 A 542 532 2.91      
38 A 291 285 0.00      
39 A 31 30 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 30517.3 cm-1
Scaled (by 0.982) Zero Point Vibrational Energy (zpe) 29968.0 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 LSDA/3-21G*
ABC
0.21710 0.21680 0.12656

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

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.190 0.385 -0.258
C2 -0.699 -1.065 -0.175
C3 -1.248 0.370 0.024
C4 0.005 1.285 0.126
C5 0.762 -0.982 0.282
H6 -0.718 -1.325 -1.250
H7 -1.283 -1.824 0.373
H8 -1.846 0.435 0.949
H9 -1.899 0.665 -0.816
H10 0.135 1.622 1.171
H11 -0.072 2.181 -0.513
H12 2.151 0.742 0.150
H13 1.276 0.325 -1.361
H14 0.810 -0.968 1.389
H15 1.380 -1.817 -0.089

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11 H12 H13 H14 H15
C12.38232.45391.53681.53062.74743.37513.26793.15162.16522.20981.10331.10782.16522.2163
C22.38231.54922.47151.53251.10671.10322.19732.20093.11893.32313.38942.69002.17472.2125
C32.45391.54921.55492.43572.18572.22171.10381.10332.19002.22493.42102.87892.80833.4208
C41.53682.47151.55492.39493.03823.37422.19742.21381.10571.10312.21342.17922.70523.3998
C51.53061.53252.43572.39492.15772.21333.04203.31642.82223.36602.21722.16111.10801.1034
H62.74741.10672.18573.03822.15771.78933.03412.35413.90873.64073.80292.59013.07022.4481
H73.37511.10322.22173.37422.21331.78932.39792.82583.81104.27664.29193.76412.47872.7031
H83.26792.19731.10382.19743.04203.03412.39791.78112.32072.88714.08773.88543.03574.0691
H93.15162.20091.10332.21383.31642.35412.82581.78113.00112.39424.16453.23933.85574.1763
H102.16523.11892.19001.10572.82223.90873.81102.32073.00111.78622.42533.06572.68563.8687
H112.20983.32312.22491.10313.36603.64074.27662.88712.39421.78622.72972.44593.78284.2744
H121.10333.38943.42102.21342.21723.80294.29194.08774.16452.42532.72971.79542.50112.6825
H131.10782.69002.87892.17922.16112.59013.76413.88543.23933.06572.44591.79543.07422.4929
H142.16522.17472.80832.70521.10803.07022.47873.03573.85572.68563.78282.50113.07421.7973
H152.21632.21253.42083.39981.10342.44812.70314.06914.17633.86874.27442.68252.49291.7973

picture of Cyclopentane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C4 C3 105.068 C1 C4 H10 108.945
C1 C4 H11 112.627 C1 C5 C2 102.108
C1 C5 H14 109.241 C1 C5 H15 113.592
C2 C3 C4 105.542 C2 C3 H8 110.718
C2 C3 H9 111.030 C2 C5 H14 109.845
C2 C5 H15 113.137 C3 C2 C5 104.438
C3 C2 H6 109.641 C3 C2 H7 112.700
C3 C4 H10 109.646 C3 C4 H11 112.559
C4 C1 C5 102.657 C4 C1 H12 112.911
C4 C1 H13 109.916 C4 C3 H8 110.332
C4 C3 H9 111.653 C5 C1 H12 113.674
C5 C1 H13 108.936 C5 C2 H6 108.605
C5 C2 H7 113.219 H6 C2 H7 108.128
H8 C3 H9 107.603 H10 C4 H11 107.929
H12 C1 H13 108.583 H14 C5 H15 108.732
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at LSDA/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.421      
2 C -0.420      
3 C -0.419      
4 C -0.420      
5 C -0.422      
6 H 0.212      
7 H 0.208      
8 H 0.213      
9 H 0.212      
10 H 0.213      
11 H 0.209      
12 H 0.207      
13 H 0.210      
14 H 0.210      
15 H 0.207      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.006 0.003 0.003 0.007
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -33.292 0.014 0.002
y 0.014 -33.280 -0.012
z 0.002 -0.012 -32.396
Traceless
 xyz
x -0.454 0.014 0.002
y 0.014 -0.436 -0.012
z 0.002 -0.012 0.890
Polar
3z2-r21.780
x2-y2-0.012
xy0.014
xz0.002
yz-0.012


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.368 0.005 -0.000
y 0.005 7.369 0.006
z -0.000 0.006 6.833


<r2> (average value of r2) Å2
<r2> 114.943
(<r2>)1/2 10.721