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All results from a given calculation for C5H10 (Cyclopentane)

using model chemistry: HF/SDD

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/SDD
 hartrees
Energy at 0K-195.104724
Energy at 298.15K-195.116576
HF Energy-195.104724
Nuclear repulsion energy187.261211
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/SDD
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 3287 2960 217.25      
2 A 3267 2942 31.01      
3 A 3267 2942 38.43      
4 A 3263 2938 12.88      
5 A 3247 2924 48.49      
6 A 3230 2909 77.53      
7 A 3211 2891 106.96      
8 A 3208 2888 58.62      
9 A 3201 2882 9.72      
10 A 3201 2882 54.19      
11 A 1673 1506 0.43      
12 A 1652 1488 7.31      
13 A 1652 1487 6.11      
14 A 1647 1483 7.04      
15 A 1642 1478 0.37      
16 A 1497 1348 0.76      
17 A 1496 1347 0.68      
18 A 1472 1326 0.16      
19 A 1468 1322 0.04      
20 A 1450 1306 0.97      
21 A 1400 1260 1.14      
22 A 1361 1225 0.56      
23 A 1351 1216 0.86      
24 A 1334 1201 1.13      
25 A 1300 1170 0.00      
26 A 1159 1043 0.06      
27 A 1145 1031 0.00      
28 A 1100 990 1.11      
29 A 1069 962 2.49      
30 A 977 880 5.95      
31 A 973 876 5.80      
32 A 946 852 1.14      
33 A 937 844 0.40      
34 A 898 809 0.17      
35 A 842 758 2.09      
36 A 679 611 0.06      
37 A 603 543 1.61      
38 A 266 239 0.00      
39 A 6 6 0.01      

Unscaled Zero Point Vibrational Energy (zpe) 33187.1 cm-1
Scaled (by 0.9004) Zero Point Vibrational Energy (zpe) 29881.6 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/SDD
ABC
0.21580 0.21567 0.12397

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/SDD

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.937 -0.849 0.247
C2 -0.227 1.275 0.124
C3 -1.300 0.152 0.014
C4 -0.516 -1.182 -0.151
C5 1.116 0.602 -0.235
H6 -0.186 1.655 1.139
H7 -0.448 2.118 -0.520
H8 -1.962 0.318 -0.827
H9 -1.923 0.130 0.901
H10 -0.544 -1.506 -1.186
H11 -0.937 -1.983 0.444
H12 1.657 -1.534 -0.187
H13 1.052 -0.897 1.327
H14 1.269 0.614 -1.310
H15 1.966 1.098 0.219

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11 H12 H13 H14 H15
C12.42562.46171.54311.53952.88653.36313.30493.09232.16342.19911.08361.08642.16302.2030
C22.42561.55752.48901.54511.08491.08332.19812.18873.09053.35003.39602.79252.17512.2021
C32.46171.55751.55522.47062.18332.20841.08361.08372.18162.20753.40912.88982.92713.4065
C41.54312.48901.55522.41933.13403.32062.19002.19181.08521.08342.20172.17332.78503.3907
C51.53951.54512.47062.41932.16702.19713.14803.27842.84703.37032.20292.16491.08621.0836
H62.88651.08492.18333.13402.16701.74242.96792.32343.94073.77953.91462.84273.03342.4062
H73.36311.08332.20843.32062.19711.74242.37202.85423.68544.24094.22753.84002.41492.7226
H83.30492.19811.08362.19003.14802.96792.37201.73882.33782.82164.11523.89833.28054.1393
H93.09232.18871.08372.19183.27842.32342.85421.73882.98862.37564.09393.17493.91284.0649
H102.16343.09052.18161.08522.84703.94073.68542.33782.98861.74382.41763.03862.79263.8805
H112.19913.35002.20751.08343.37033.77954.24092.82162.37561.74382.70702.43183.83294.2395
H121.08363.39603.40912.20172.20293.91464.22754.11524.09392.41762.70701.74972.45482.6808
H131.08642.79252.88982.17332.16492.84273.84003.89833.17493.03862.43181.74973.04672.4582
H142.16302.17512.92712.78501.08623.03342.41493.28053.91282.79263.83292.45483.04671.7488
H152.20302.20213.40653.39071.08362.40622.72264.13934.06493.88054.23952.68082.45821.7488

picture of Cyclopentane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C4 C3 105.221 C1 C4 H10 109.564
C1 C4 H11 112.532 C1 C5 C2 103.695
C1 C5 H14 109.717 C1 C5 H15 113.100
C2 C3 C4 106.187 C2 C3 H8 111.409
C2 C3 H9 110.649 C2 C5 H14 110.292
C2 C5 H15 112.619 C3 C2 C5 105.559
C3 C2 H6 110.151 C3 C2 H7 112.250
C3 C4 H10 110.150 C3 C4 H11 112.337
C4 C1 C5 103.411 C4 C1 H12 112.726
C4 C1 H13 110.274 C4 C3 H8 110.916
C4 C3 H9 111.046 C5 C1 H12 113.090
C5 C1 H13 109.860 C5 C2 H6 109.729
C5 C2 H7 112.228 H6 C2 H7 106.949
H8 C3 H9 106.702 H10 C4 H11 107.049
H12 C1 H13 107.469 H14 C5 H15 107.410
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/SDD Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.339      
2 C -0.358      
3 C -0.345      
4 C -0.359      
5 C -0.343      
6 H 0.170      
7 H 0.182      
8 H 0.177      
9 H 0.176      
10 H 0.167      
11 H 0.185      
12 H 0.186      
13 H 0.156      
14 H 0.157      
15 H 0.187      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.012 0.003 0.001 0.012
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -34.186 0.003 0.001
y 0.003 -34.179 -0.013
z 0.001 -0.013 -32.870
Traceless
 xyz
x -0.661 0.003 0.001
y 0.003 -0.651 -0.013
z 0.001 -0.013 1.312
Polar
3z2-r22.624
x2-y2-0.007
xy0.003
xz0.001
yz-0.013


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.422 -0.001 -0.001
y -0.001 7.413 0.017
z -0.001 0.017 6.562


<r2> (average value of r2) Å2
<r2> 116.363
(<r2>)1/2 10.787