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All results from a given calculation for C6H10 (Cyclopentene, 3-methyl-)

using model chemistry: MP2/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at MP2/3-21G
 hartrees
Energy at 0K-232.261996
Energy at 298.15K-232.273148
HF Energy-231.720324
Nuclear repulsion energy232.556092
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 MP2/3-21G
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 3240 3093 19.02      
2 A 3209 3063 5.67      
3 A 3162 3018 42.89      
4 A 3152 3009 14.49      
5 A 3144 3001 23.88      
6 A 3132 2990 17.92      
7 A 3099 2958 17.07      
8 A 3085 2945 27.09      
9 A 3073 2933 20.85      
10 A 3070 2930 17.69      
11 A 1642 1568 0.10      
12 A 1602 1529 5.57      
13 A 1598 1525 2.73      
14 A 1590 1518 1.77      
15 A 1574 1503 1.35      
16 A 1486 1419 3.33      
17 A 1416 1352 4.23      
18 A 1393 1330 1.12      
19 A 1377 1315 0.33      
20 A 1361 1299 3.39      
21 A 1355 1294 0.61      
22 A 1271 1214 1.04      
23 A 1244 1187 0.43      
24 A 1188 1134 0.13      
25 A 1160 1107 2.87      
26 A 1146 1094 6.07      
27 A 1077 1028 0.64      
28 A 1027 980 0.75      
29 A 984 939 1.42      
30 A 965 921 0.79      
31 A 941 898 0.63      
32 A 893 852 2.06      
33 A 862 823 0.70      
34 A 830 793 2.67      
35 A 775 740 0.38      
36 A 754 719 37.56      
37 A 607 579 7.19      
38 A 503 480 2.78      
39 A 350 334 0.08      
40 A 285 272 0.14      
41 A 250 238 0.07      
42 A 98 93 0.09      

Unscaled Zero Point Vibrational Energy (zpe) 32484.3 cm-1
Scaled (by 0.9545) Zero Point Vibrational Energy (zpe) 31006.3 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 MP2/3-21G
ABC
0.21584 0.10460 0.07789

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/3-21G

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 -0.306 2.226 0.145
C2 0.096 1.218 0.117
H3 2.160 1.600 -0.408
C4 1.370 0.896 -0.168
H5 2.186 -0.845 0.854
H6 2.177 -1.011 -0.915
C7 1.621 -0.615 -0.059
H8 0.085 -2.055 0.688
H9 -0.142 -1.515 -0.994
C10 0.163 -1.199 0.011
H11 -0.934 -0.049 1.540
C12 -0.764 -0.006 0.454
H13 -2.740 0.844 0.031
H14 -2.680 -0.932 -0.055
H15 -1.961 0.047 -1.358
C16 -2.127 -0.012 -0.276

Atom - Atom Distances (Å)
  H1 C2 H3 C4 H5 H6 C7 H8 H9 C10 H11 C12 H13 H14 H15 C16
H11.08572.60352.16344.01844.21563.43914.33343.91413.46022.74132.30002.80153.95633.12192.9159
C21.08572.16351.34543.02793.21982.39093.32282.95992.42082.16521.53362.86213.51582.78902.5711
H32.60352.16351.08482.75202.65982.30604.34373.91693.46394.01003.44534.97735.47374.50494.5819
C42.16341.34541.08482.17722.20071.53483.33072.96282.42453.01952.39904.11594.44543.63773.6152
H54.01843.02792.75202.17721.77671.09772.43033.04642.21993.29163.09225.27214.95084.78354.5360
H64.21563.21982.65982.20071.77671.09542.83542.37462.22504.07793.39615.34034.93384.29434.4652
C73.43912.39092.30601.53481.09771.09542.23442.18921.57243.06612.51384.59964.31293.86723.8029
H84.33343.32284.34373.33072.43032.83542.23441.78101.09422.40592.22974.10063.07513.57583.1620
H93.91412.95993.91692.96283.04642.37462.18921.78101.09643.03262.18173.65602.76862.42492.5918
C103.46022.42083.46392.42452.21992.22501.57241.09421.09642.20541.57423.55012.85642.81712.5959
H112.74132.16524.01003.01953.29164.07793.06612.40593.03262.20541.09942.51722.52463.07562.1735
C122.30001.53363.44532.39903.09223.39612.51382.22972.18171.57421.09942.19302.18862.17261.5472
H132.80152.86214.97734.11595.27215.34034.59964.10063.65603.55012.51722.19301.77921.78091.0963
H143.95633.51585.47374.44544.95084.93384.31293.07512.76862.85642.52462.18861.77921.78151.0964
H153.12192.78904.50493.63774.78354.29433.86723.57582.42492.81713.07562.17261.78091.78151.0958
C162.91592.57114.58193.61524.53604.46523.80293.16202.59182.59592.17351.54721.09631.09641.0958

picture of Cyclopentene, 3-methyl- state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
H1 C2 C4 125.379 H1 C2 C12 121.889
C2 C4 H3 125.473 C2 C4 C7 112.053
C2 C12 C10 102.317 C2 C12 H11 109.530
C2 C12 C16 113.139 H3 C4 C7 122.423
C4 C2 C12 112.708 C4 C7 H5 110.497
C4 C7 H6 112.512 C4 C7 C10 102.567
H5 C7 H6 108.219 H5 C7 C10 111.241
H6 C7 C10 111.781 C7 C10 H8 112.614
C7 C10 H9 108.920 C7 C10 C12 106.051
H8 C10 H9 108.791 H8 C10 C12 112.101
H9 C10 C12 108.226 C10 C12 H11 109.880
C10 C12 C16 112.531 H11 C12 C16 109.252
C12 C16 H13 110.958 C12 C16 H14 110.601
C12 C16 H15 109.386 H13 C16 H14 108.465
H13 C16 H15 108.668 H14 C16 H15 108.709
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at MP2/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.181     0.167
2 C -0.141     -0.367
3 H 0.183     0.123
4 C -0.173     -0.131
5 H 0.196     0.053
6 H 0.191     0.056
7 C -0.411     -0.072
8 H 0.186     0.036
9 H 0.192     0.062
10 C -0.351     -0.152
11 H 0.197     -0.014
12 C -0.281     0.371
13 H 0.178     0.120
14 H 0.180     0.100
15 H 0.183     0.134
16 C -0.510     -0.487


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.014 -0.116 0.067 0.135
CHELPG        
AIM        
ESP -0.004 -0.099 0.052 0.112


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -38.496 -0.197 -0.647
y -0.197 -38.514 -0.178
z -0.647 -0.178 -40.179
Traceless
 xyz
x 0.851 -0.197 -0.647
y -0.197 0.823 -0.178
z -0.647 -0.178 -1.674
Polar
3z2-r2-3.347
x2-y20.018
xy-0.197
xz-0.647
yz-0.178


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 9.775 -0.301 -0.549
y -0.301 8.120 -0.113
z -0.549 -0.113 6.263


<r2> (average value of r2) Å2
<r2> 167.221
(<r2>)1/2 12.931