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

using model chemistry: PBEPBE/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at PBEPBE/6-31G*
 hartrees
Energy at 0K-234.307508
Energy at 298.15K-234.318431
Nuclear repulsion energy233.675350
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 PBEPBE/6-31G*
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 3145 3100 34.78      
2 A 3120 3075 9.47      
3 A 3051 3007 24.80      
4 A 3047 3003 44.33      
5 A 3003 2960 35.36      
6 A 2998 2955 36.78      
7 A 2975 2932 36.42      
8 A 2966 2923 10.38      
9 A 2931 2889 27.00      
10 A 2930 2888 42.32      
11 A 1651 1628 3.32      
12 A 1484 1463 6.92      
13 A 1479 1458 2.34      
14 A 1470 1449 0.46      
15 A 1463 1442 0.99      
16 A 1387 1367 2.34      
17 A 1346 1327 0.09      
18 A 1341 1322 4.55      
19 A 1304 1285 1.89      
20 A 1277 1259 0.14      
21 A 1261 1243 3.39      
22 A 1210 1193 0.40      
23 A 1143 1127 0.03      
24 A 1123 1107 2.44      
25 A 1107 1091 0.23      
26 A 1089 1073 0.35      
27 A 1047 1032 1.29      
28 A 975 961 9.23      
29 A 971 957 0.24      
30 A 926 913 0.02      
31 A 912 899 4.55      
32 A 911 898 3.85      
33 A 887 874 0.01      
34 A 810 798 1.31      
35 A 756 746 0.41      
36 A 681 672 30.79      
37 A 558 550 3.93      
38 A 411 405 1.27      
39 A 384 379 0.13      
40 A 306 301 0.10      
41 A 249 246 0.02      
42 A 99 98 0.08      

Unscaled Zero Point Vibrational Energy (zpe) 31090.4 cm-1
Scaled (by 0.9857) Zero Point Vibrational Energy (zpe) 30645.8 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 PBEPBE/6-31G*
ABC
0.22279 0.10527 0.07768

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBE/6-31G*

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 2.451 1.304 -0.138
C2 1.559 0.673 -0.062
H3 2.451 -1.304 -0.138
C4 1.559 -0.673 -0.062
H5 -0.146 1.624 -1.004
H6 0.042 2.074 0.699
C7 0.155 1.231 -0.009
H8 0.042 -2.074 0.699
H9 -0.146 -1.624 -1.004
C10 0.155 -1.231 -0.009
H11 -0.777 -0.000 1.499
C12 -0.708 -0.000 0.394
H13 -2.693 0.891 0.135
H14 -2.693 -0.891 0.135
H15 -2.097 -0.000 -1.290
C16 -2.125 -0.000 -0.185

Atom - Atom Distances (Å)
  H1 C2 H3 C4 H5 H6 C7 H8 H9 C10 H11 C12 H13 H14 H15 C16
H11.09522.60782.16982.75582.66392.30044.23214.00813.42273.84623.45875.16735.59904.86894.7575
C21.09522.16981.34542.16742.20091.51193.22863.01132.36632.88852.40854.26194.53453.91453.7463
H32.60782.16981.09524.00814.23213.42272.66392.75582.30043.84623.45875.59905.16734.86894.7575
C42.16981.34541.09523.01133.22862.36632.20092.16741.51192.88852.40854.53454.26193.91453.7463
H52.75582.16744.00813.01131.77131.11124.07533.24823.03893.04942.21532.88483.75642.55442.6875
H62.66392.20094.23213.22861.77131.10604.14714.07533.38192.36822.22613.03224.07243.58203.1264
C72.30041.51193.42272.36631.11121.10603.38193.03892.46302.15801.55692.87183.55482.86862.5969
H84.23213.22862.66392.20094.07534.14713.38191.77131.10602.36822.22614.07243.03223.58203.1264
H94.00813.01132.75582.16743.24824.07533.03891.77131.11123.04942.21533.75642.88482.55452.6875
C103.42272.36632.30041.51193.03893.38192.46301.10601.11122.15801.55703.55482.87182.86862.5969
H113.84622.88853.84622.88853.04942.36822.15802.36823.04942.15801.10712.51512.51513.08582.1571
C123.45872.40853.45872.40852.21532.22611.55692.22612.21531.55701.10712.19072.19072.18261.5299
H135.16734.26195.59904.53452.88483.03222.87184.07243.75643.55482.51512.19071.78211.78381.1044
H145.59904.53455.16734.26193.75644.07243.55483.03222.88482.87182.51512.19071.78211.78381.1044
H154.86893.91454.86893.91452.55443.58202.86863.58202.55452.86863.08582.18261.78381.78381.1054
C164.75753.74634.75753.74632.68753.12642.59693.12642.68752.59692.15711.52991.10441.10441.1054

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 125.192 H1 C2 C7 123.062
C2 C4 H3 125.192 C2 C4 C10 111.690
C2 C7 H5 110.506 C2 C7 H6 113.529
C2 C7 C12 103.401 H3 C4 C10 123.062
C4 C2 C7 111.690 C4 C10 H8 113.528
C4 C10 H9 110.507 C4 C10 C12 103.400
H5 C7 H6 106.050 H5 C7 C12 111.149
H6 C7 C12 112.327 C7 C12 C10 104.550
C7 C12 H11 106.989 C7 C12 C16 114.547
H8 C10 H9 106.050 H8 C10 C12 112.326
H9 C10 C12 111.150 C10 C12 H11 106.989
C10 C12 C16 114.547 H11 C12 C16 108.714
C12 C16 H13 111.502 C12 C16 H14 111.502
C12 C16 H15 110.799 H13 C16 H14 107.563
H13 C16 H15 107.643 H14 C16 H15 107.643
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.130      
2 C -0.111      
3 H 0.130      
4 C -0.111      
5 H 0.154      
6 H 0.152      
7 C -0.333      
8 H 0.152      
9 H 0.154      
10 C -0.333      
11 H 0.149      
12 C -0.103      
13 H 0.156      
14 H 0.156      
15 H 0.154      
16 C -0.494      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.184 0.000 0.017 0.185
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -37.804 0.000 -0.368
y 0.000 -36.722 0.000
z -0.368 0.000 -38.745
Traceless
 xyz
x -0.071 0.000 -0.368
y 0.000 1.553 0.000
z -0.368 0.000 -1.482
Polar
3z2-r2-2.964
x2-y2-1.082
xy0.000
xz-0.368
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 9.908 0.000 -0.057
y 0.000 10.287 0.000
z -0.057 0.000 6.822


<r2> (average value of r2) Å2
<r2> 165.337
(<r2>)1/2 12.858