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All results from a given calculation for C6H10 (Cyclopentene, 1-methyl-)

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-38.728576
Energy at 298.15K-38.739781
Nuclear repulsion energy126.170299
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 3369 3025 29.04      
2 A 3293 2957 47.83      
3 A 3288 2953 126.08      
4 A 3260 2928 57.94      
5 A 3253 2921 73.80      
6 A 3247 2916 48.02      
7 A 3235 2905 38.93      
8 A 3209 2882 81.53      
9 A 3208 2881 109.21      
10 A 3202 2876 40.78      
11 A 1875 1684 5.48      
12 A 1650 1481 0.20      
13 A 1627 1461 0.25      
14 A 1617 1452 5.66      
15 A 1613 1449 1.08      
16 A 1608 1444 7.86      
17 A 1551 1392 1.15      
18 A 1493 1340 1.37      
19 A 1468 1318 0.06      
20 A 1458 1310 5.55      
21 A 1389 1248 1.71      
22 A 1358 1219 1.08      
23 A 1339 1203 2.23      
24 A 1263 1134 1.65      
25 A 1241 1115 1.45      
26 A 1176 1056 4.66      
27 A 1123 1008 6.68      
28 A 1104 991 5.06      
29 A 1102 990 1.79      
30 A 1006 903 3.26      
31 A 981 881 1.27      
32 A 956 858 1.64      
33 A 939 844 3.03      
34 A 909 817 13.13      
35 A 871 782 3.44      
36 A 683 613 1.21      
37 A 602 540 0.02      
38 A 453 406 5.11      
39 A 328 295 0.51      
40 A 259 232 3.58      
41 A 190 171 0.56      
42 A 167 150 0.10      

Unscaled Zero Point Vibrational Energy (zpe) 33980.6 cm-1
Scaled (by 0.898) Zero Point Vibrational Energy (zpe) 30514.6 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/CEP-31G*
ABC
0.23060 0.09973 0.07414

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 0.753 0.084 -0.003
H2 0.330 2.192 -0.083
C3 -0.033 1.175 -0.023
H4 2.615 -0.550 -0.896
H5 2.664 -0.429 0.859
H6 2.690 1.043 -0.125
C7 2.268 0.041 -0.045
H8 0.249 -1.987 -0.514
H9 -0.011 -1.564 1.171
C10 -0.086 -1.185 0.147
H11 -2.289 -1.232 0.375
H12 -1.714 -0.863 -1.249
C13 -1.520 -0.701 -0.189
H14 -2.138 1.382 -0.598
H15 -1.877 1.049 1.107
C16 -1.511 0.825 0.101

Atom - Atom Distances (Å)
  C1 H2 C3 H4 H5 H6 C7 H8 H9 C10 H11 H12 C13 H14 H15 C16
C12.15121.34502.15982.15832.16471.51562.19172.16321.52873.33582.92222.41263.22473.01352.3849
H22.15121.08123.66043.63372.62532.89484.20143.97443.40994.33443.85653.43552.64812.75492.3002
C31.34501.08123.27863.25992.72852.56503.21202.98862.36673.32242.91272.39972.19172.16611.5238
H42.15983.66043.27861.76011.77131.09322.79423.49212.96415.11124.35484.19825.13945.17154.4619
H52.15833.63373.25991.76011.77071.09343.18522.92242.93935.04084.87904.32235.33524.78184.4250
H62.16472.62532.72851.77131.77071.08993.91023.97133.56975.49664.92924.55794.86334.73014.2130
C71.51562.89482.56501.09321.09341.08992.89983.04092.66074.74944.25733.86284.63844.41793.8620
H82.19174.20143.21202.79423.18523.91022.89981.75641.09212.79282.37842.21144.12974.04543.3738
H92.16323.97442.98863.49212.92243.97133.04091.75641.09422.43613.04172.20774.04183.21233.0178
C101.52873.40992.36672.96412.93933.56972.66071.09211.09422.21512.16941.55103.37003.02002.4646
H113.33584.33443.32245.11125.04085.49664.74942.79282.43612.21511.76161.09052.79292.43112.2160
H122.92223.85652.91274.35484.87904.92924.25732.37843.04172.16941.76161.09052.37613.03932.1714
C132.41263.43552.39974.19824.32234.55793.86282.21142.20771.55101.09051.09052.21082.20661.5533
H143.22472.64812.19175.13945.33524.86334.63844.12974.04183.37002.79292.37612.21081.75641.0914
H153.01352.75492.16615.17154.78184.73014.41794.04543.21233.02002.43113.03932.20661.75641.0938
C162.38492.30021.52384.46194.42504.21303.86203.37383.01782.46462.21602.17141.55331.09141.0938

picture of Cyclopentene, 1-methyl- state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C3 H2 124.549 C1 C3 C16 112.313
C1 C7 H4 110.730 C1 C7 H5 110.595
C1 C7 H6 111.317 C1 C10 H8 112.431
C1 C10 H9 110.022 C1 C10 C13 103.138
H2 C3 C16 123.101 C3 C1 C7 127.350
C3 C1 C10 110.724 C3 C16 C13 102.487
C3 C16 H14 112.829 C3 C16 H15 110.607
H4 C7 H5 107.215 H4 C7 H6 108.457
H5 C7 H6 108.394 C7 C1 C10 121.854
H8 C10 H9 106.914 H8 C10 C13 112.419
H9 C10 C13 111.991 C10 C13 H11 112.818
C10 C13 H12 109.186 C10 C13 C16 105.110
H11 C13 H12 107.742 H11 C13 C16 112.726
H12 C13 C16 109.183 C13 C16 H14 112.252
C13 C16 H15 111.766 H14 C16 H15 106.981
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 -0.207      
2 H 0.304      
3 C -0.382      
4 H 0.102      
5 H 0.101      
6 H 0.137      
7 C -0.215      
8 H 0.107      
9 H 0.091      
10 C -0.053      
11 H 0.127      
12 H 0.087      
13 C -0.209      
14 H 0.109      
15 H 0.091      
16 C -0.189      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.082 -0.260 0.110 0.294
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -37.650 -0.212 -0.127
y -0.212 -37.597 -0.078
z -0.127 -0.078 -38.959
Traceless
 xyz
x 0.628 -0.212 -0.127
y -0.212 0.708 -0.078
z -0.127 -0.078 -1.336
Polar
3z2-r2-2.672
x2-y2-0.053
xy-0.212
xz-0.127
yz-0.078


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 10.262 -1.039 -0.044
y -1.039 9.607 -0.081
z -0.044 -0.081 6.514


<r2> (average value of r2) Å2
<r2> 143.316
(<r2>)1/2 11.971