return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

All results from a given calculation for C6H10 (Cyclopentene, 4-methyl-)

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-234.626581
Energy at 298.15K-234.637725
HF Energy-234.626581
Nuclear repulsion energy235.351392
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 3222 3082 27.77      
2 A 3196 3057 8.21      
3 A 3113 2978 28.76      
4 A 3112 2977 60.93      
5 A 3088 2954 30.11      
6 A 3083 2949 34.70      
7 A 3048 2916 13.73      
8 A 3036 2904 36.85      
9 A 3021 2890 47.64      
10 A 3021 2889 21.54      
11 A 1713 1639 2.92      
12 A 1504 1438 8.39      
13 A 1499 1434 2.39      
14 A 1498 1433 1.44      
15 A 1491 1426 4.81      
16 A 1415 1354 6.44      
17 A 1384 1324 3.18      
18 A 1377 1317 0.83      
19 A 1338 1280 2.25      
20 A 1315 1258 0.95      
21 A 1298 1242 3.30      
22 A 1245 1191 0.32      
23 A 1179 1128 0.07      
24 A 1161 1110 2.40      
25 A 1131 1082 0.54      
26 A 1114 1066 0.78      
27 A 1076 1029 2.79      
28 A 998 955 8.07      
29 A 988 945 1.33      
30 A 987 944 0.87      
31 A 939 898 6.17      
32 A 930 889 5.95      
33 A 914 874 0.16      
34 A 833 797 1.22      
35 A 783 749 0.74      
36 A 709 679 40.65      
37 A 580 555 4.18      
38 A 433 415 1.03      
39 A 398 381 0.06      
40 A 318 304 0.06      
41 A 244 233 0.01      
42 A 98 93 0.08      

Unscaled Zero Point Vibrational Energy (zpe) 31915.1 cm-1
Scaled (by 0.9565) Zero Point Vibrational Energy (zpe) 30526.8 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
0.22594 0.10663 0.07881

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)
H1 -2.437 -1.285 -0.132
C2 -1.552 -0.664 -0.064
H3 -2.437 1.285 -0.132
C4 -1.552 0.664 -0.064
H5 0.143 -1.605 -0.994
H6 -0.045 -2.052 0.696
C7 -0.153 -1.222 -0.008
H8 -0.045 2.052 0.696
H9 0.143 1.605 -0.994
C10 -0.153 1.222 -0.008
H11 0.773 0.000 1.487
C12 0.705 0.000 0.393
H13 2.676 -0.884 0.133
H14 2.676 0.884 0.133
H15 2.081 0.000 -1.280
C16 2.115 0.000 -0.185

Atom - Atom Distances (Å)
  H1 C2 H3 C4 H5 H6 C7 H8 H9 C10 H11 C12 H13 H14 H15 C16
H11.08382.56982.14182.73992.64542.28914.18893.96963.39403.81813.43555.13585.56044.83624.7306
C21.08382.14181.32792.15072.18531.50733.19792.98142.34882.87222.39654.23784.50623.88833.7283
H32.56982.14181.08383.96964.18893.39402.64542.73992.28913.81813.43555.56045.13584.83624.7306
C42.14181.32791.08382.98153.19792.34882.18532.15071.50732.87222.39654.50624.23783.88833.7283
H52.73992.15073.96962.98151.75891.09894.03403.21073.00883.02172.19512.86443.72552.53282.6682
H62.64542.18534.18893.19791.75891.09444.10504.03403.35082.34672.20623.01454.04253.55513.1073
C72.28911.50733.39402.34881.09891.09443.35083.00882.44352.14111.54582.85203.52882.84622.5818
H84.18893.19792.64542.18534.03404.10503.35081.75891.09442.34672.20624.04253.01453.55513.1073
H93.96962.98142.73992.15073.21074.03403.00881.75891.09893.02172.19513.72552.86442.53282.6682
C103.39402.34882.28911.50733.00883.35082.44351.09441.09892.14111.54583.52882.85202.84622.5818
H113.81812.87223.81812.87223.02172.34672.14112.34673.02172.14111.09592.49722.49723.06052.1441
C123.43552.39653.43552.39652.19512.20621.54582.20622.19511.54581.09592.17542.17542.16621.5238
H135.13584.23785.56044.50622.86443.01452.85204.04253.72553.52882.49722.17541.76741.76891.0939
H145.56044.50625.13584.23783.72554.04253.52883.01452.86442.85202.49722.17541.76741.76891.0939
H154.83623.88834.83623.88832.53283.55512.84623.55512.53282.84623.06052.16621.76891.76891.0949
C164.73063.72834.73063.72832.66823.10732.58183.10732.66822.58182.14411.52381.09391.09391.0949

picture of Cyclopentene, 4-methyl- state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
H1 C2 C4 124.953 H1 C2 C7 123.293
C2 C4 H3 124.953 C2 C4 C10 111.719
C2 C7 H5 110.236 C2 C7 H6 113.322
C2 C7 C12 103.429 H3 C4 C10 123.293
C4 C2 C7 111.719 C4 C10 H8 113.322
C4 C10 H9 110.237 C4 C10 C12 103.429
H5 C7 H6 106.629 H5 C7 C12 111.067
H6 C7 C12 112.238 C7 C12 C10 104.442
C7 C12 H11 107.058 C7 C12 C16 114.511
H8 C10 H9 106.629 H8 C10 C12 112.238
H9 C10 C12 111.067 C10 C12 H11 107.058
C10 C12 C16 114.511 H11 C12 C16 108.766
C12 C16 H13 111.347 C12 C16 H14 111.347
C12 C16 H15 110.554 H13 C16 H14 107.770
H13 C16 H15 107.833 H14 C16 H15 107.833
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 H 0.105      
2 C -0.135      
3 H 0.105      
4 C -0.135      
5 H 0.124      
6 H 0.128      
7 C -0.189      
8 H 0.128      
9 H 0.124      
10 C -0.189      
11 H 0.135      
12 C -0.252      
13 H 0.117      
14 H 0.117      
15 H 0.112      
16 C -0.294      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.182 0.000 0.023 0.183
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -38.243 0.000 0.440
y 0.000 -37.091 0.000
z 0.440 0.000 -39.288
Traceless
 xyz
x -0.054 0.000 0.440
y 0.000 1.675 0.000
z 0.440 0.000 -1.621
Polar
3z2-r2-3.243
x2-y2-1.153
xy0.000
xz0.440
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 10.208 0.000 0.047
y 0.000 10.691 0.000
z 0.047 0.000 7.399


<r2> (average value of r2) Å2
<r2> 163.601
(<r2>)1/2 12.791