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: BLYP/cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at BLYP/cc-pVDZ
 hartrees
Energy at 0K-234.499035
Energy at 298.15K-234.509966
Nuclear repulsion energy232.320779
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 BLYP/cc-pVDZ
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 3114 3119 35.68      
2 A 3007 3011 52.82      
3 A 2967 2971 38.34      
4 A 2942 2947 39.41      
5 A 2931 2936 12.62      
6 A 2897 2902 31.48      
7 A 1624 1627 4.15      
8 A 1433 1435 4.92      
9 A 1421 1423 0.33      
10 A 1359 1362 0.55      
11 A 1317 1319 5.18      
12 A 1256 1258 0.39      
13 A 1187 1189 0.32      
14 A 1086 1088 0.30      
15 A 1068 1069 1.13      
16 A 1030 1032 1.38      
17 A 949 950 0.18      
18 A 899 901 3.91      
19 A 792 793 1.14      
20 A 679 680 24.41      
21 A 555 556 2.98      
22 A 412 412 0.90      
23 A 103 103 0.09      
24 A 3089 3094 10.58      
25 A 3008 3013 29.42      
26 A 2961 2966 44.31      
27 A 2897 2902 43.82      
28 A 1431 1433 1.68      
29 A 1413 1415 0.67      
30 A 1320 1323 0.00      
31 A 1279 1281 1.88      
32 A 1239 1241 3.13      
33 A 1119 1121 0.01      
34 A 1102 1103 2.32      
35 A 954 956 7.25      
36 A 926 928 0.07      
37 A 892 894 4.41      
38 A 872 873 0.28      
39 A 751 752 0.42      
40 A 381 382 0.11      
41 A 309 309 0.06      
42 A 253 253 0.01      

Unscaled Zero Point Vibrational Energy (zpe) 30611.1 cm-1
Scaled (by 1.0016) Zero Point Vibrational Energy (zpe) 30660.1 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 BLYP/cc-pVDZ
ABC
0.22044 0.10388 0.07671

See section I.F.4 to change rotational constant units
Geometric Data calculated at BLYP/cc-pVDZ

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 -2.465 -1.307 -0.146
C2 -1.568 -0.675 -0.066
H3 -2.465 1.307 -0.146
C4 -1.568 0.675 -0.066
H5 0.145 -1.644 -0.999
H6 -0.052 -2.081 0.715
C7 -0.157 -1.239 -0.003
H8 -0.052 2.081 0.715
H9 0.145 1.644 -0.999
C10 -0.157 1.239 -0.003
H11 0.791 0.000 1.505
C12 0.716 0.000 0.396
H13 2.710 -0.895 0.130
H14 2.710 0.895 0.130
H15 2.111 -0.000 -1.302
C16 2.138 -0.000 -0.191

Atom - Atom Distances (Å)
  H1 C2 H3 C4 H5 H6 C7 H8 H9 C10 H11 C12 H13 H14 H15 C16
H11.09992.61322.17612.76612.67612.31314.24684.03033.43933.87773.48095.19865.63054.89734.7845
C21.09992.17621.34932.17792.21031.52123.24043.02982.37892.91412.42584.28844.56133.93953.7687
H32.61322.17621.09994.03034.24683.43932.67622.76612.31323.87773.48095.63055.19874.89744.7845
C42.17611.34931.09993.02983.24042.37882.21032.17801.52132.91412.42584.56134.28853.93963.7687
H52.76612.17794.03033.02981.77961.11634.10473.28793.06543.06452.23022.90123.78172.58092.7066
H62.67612.21034.24683.24041.77961.11104.16124.10473.39852.38012.24073.06234.10193.61643.1536
C72.31311.52123.43932.37881.11631.11103.39853.06552.47902.17061.56762.89093.57702.89292.6148
H84.24683.24042.67622.21034.10474.16123.39851.77961.11102.38012.24064.10193.06233.61653.1537
H94.03033.02982.76612.17803.28794.10473.06551.77961.11633.06462.23023.78182.90122.58102.7066
C103.43932.37892.31321.52133.06543.39852.47901.11101.11632.17051.56763.57692.89092.89302.6148
H113.87772.91413.87772.91413.06452.38012.17062.38013.06462.17051.11212.52452.52453.10242.1659
C123.48092.42583.48092.42582.23022.24071.56762.24062.23021.56761.11212.20202.20202.19791.5383
H135.19864.28845.63054.56132.90123.06232.89094.10193.78183.57692.52452.20201.78991.79231.1101
H145.63054.56135.19874.28853.78174.10193.57703.06232.90122.89092.52452.20201.78991.79231.1101
H154.89733.93954.89743.93962.58093.61642.89293.61652.58102.89303.10242.19791.79231.79231.1112
C164.78453.76874.78453.76872.70663.15362.61483.15372.70662.61482.16591.53831.11011.11011.1112

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 125.068 H1 C2 C7 123.083
C2 C4 H3 125.070 C2 C4 C10 111.795
C2 C7 H5 110.390 C2 C7 H6 113.302
C2 C7 C12 103.499 H3 C4 C10 123.084
C4 C2 C7 111.799 C4 C10 H8 113.299
C4 C10 H9 110.387 C4 C10 C12 103.499
H5 C7 H6 106.068 H5 C7 C12 111.278
H6 C7 C12 112.426 C7 C12 C10 104.502
C7 C12 H11 106.965 C7 C12 C16 114.673
H8 C10 H9 106.067 H8 C10 C12 112.427
H9 C10 C12 111.283 C10 C12 H11 106.965
C10 C12 C16 114.676 H11 C12 C16 108.543
C12 C16 H13 111.472 C12 C16 H14 111.473
C12 C16 H15 111.080 H13 C16 H14 107.453
H13 C16 H15 107.580 H14 C16 H15 107.580
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H -0.057      
2 C -0.002      
3 H -0.057      
4 C -0.002      
5 H -0.003      
6 H -0.005      
7 C 0.093      
8 H -0.005      
9 H -0.003      
10 C 0.093      
11 H -0.026      
12 C -0.091      
13 H -0.000      
14 H -0.000      
15 H 0.004      
16 C 0.061      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.201 0.000 0.039 0.204
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -38.872 0.000 0.337
y 0.000 -37.754 -0.000
z 0.337 -0.000 -39.498
Traceless
 xyz
x -0.246 0.000 0.337
y 0.000 1.431 -0.000
z 0.337 -0.000 -1.185
Polar
3z2-r2-2.371
x2-y2-1.118
xy0.000
xz0.337
yz-0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 10.699 -0.001 0.071
y -0.001 10.984 -0.007
z 0.071 -0.007 7.377


<r2> (average value of r2) Å2
<r2> 0.000
(<r2>)1/2 0.000