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 C6H8 (3-Methylenecyclopentene)

using model chemistry: BLYP/6-31+G**

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/6-31+G**
 hartrees
Energy at 0K-233.310471
Energy at 298.15K-233.318596
Nuclear repulsion energy214.577817
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/6-31+G**
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 3151 3135 19.34      
2 A 3134 3117 22.01      
3 A 3112 3095 4.92      
4 A 3072 3055 8.65      
5 A 3013 2997 20.89      
6 A 2980 2964 28.62      
7 A 2962 2947 15.86      
8 A 2944 2929 48.35      
9 A 1629 1620 33.37      
10 A 1578 1570 1.55      
11 A 1459 1451 4.94      
12 A 1436 1428 1.29      
13 A 1421 1413 0.34      
14 A 1331 1324 0.83      
15 A 1282 1275 2.14      
16 A 1243 1236 0.25      
17 A 1217 1210 2.47      
18 A 1203 1197 0.01      
19 A 1130 1124 1.94      
20 A 1094 1088 2.01      
21 A 996 991 2.66      
22 A 974 969 3.20      
23 A 935 930 2.03      
24 A 930 925 3.10      
25 A 881 876 9.06      
26 A 836 832 36.57      
27 A 821 816 0.51      
28 A 819 814 22.47      
29 A 763 759 9.42      
30 A 753 749 0.87      
31 A 643 640 12.28      
32 A 609 605 0.66      
33 A 501 498 17.83      
34 A 352 350 0.61      
35 A 289 287 1.66      
36 A 58 57 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 25772.5 cm-1
Scaled (by 0.9947) Zero Point Vibrational Energy (zpe) 25635.9 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/6-31+G**
ABC
0.24026 0.11289 0.07907

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

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.104 -1.205 0.000
H2 -0.072 -1.839 -0.884
H3 -0.072 -1.838 0.886
C4 1.555 -0.605 -0.000
H5 2.139 -0.924 -0.883
H6 2.139 -0.924 0.882
C7 -2.198 -0.021 -0.000
H8 -2.787 0.900 -0.000
H9 -2.754 -0.962 -0.000
C10 -0.843 0.010 0.000
C11 1.324 0.898 0.000
H12 2.142 1.622 0.000
C13 0.003 1.212 0.000
H14 -0.406 2.226 0.000

Atom - Atom Distances (Å)
  C1 H2 H3 C4 H5 H6 C7 H8 H9 C10 C11 H12 C13 H14
C11.10241.10241.56952.23572.23572.58943.57692.86891.54102.43103.48522.41973.4685
H21.10241.77002.22482.39242.97452.93403.95702.95732.19003.19684.20273.17774.1729
H31.10241.77002.22472.97482.39242.93433.95712.95792.18993.19634.20213.17724.1723
C41.56952.22482.22471.10571.10573.79804.59534.32362.47521.52042.30332.38943.4433
H52.23572.39242.97481.10571.76564.51705.32644.97213.24692.18232.69493.14704.1442
H62.23572.97452.39241.10571.76564.51775.32714.97273.24742.18232.69483.14734.1446
C72.58942.93402.93433.79804.51704.51771.09331.09321.35563.63994.64092.52332.8735
H83.57693.95703.95714.59535.32645.32711.09331.86262.13834.11104.98182.80782.7249
H92.86892.95732.95794.32364.97214.97271.09321.86262.14444.48215.53643.51163.9590
C101.54102.19002.18992.47523.24693.24741.35562.13832.14442.34153.39251.47012.2579
C112.43103.19683.19631.52042.18232.18233.63994.11104.48212.34151.09281.35752.1808
H123.48524.20274.20212.30332.69492.69484.64094.98185.53643.39251.09282.17772.6187
C132.41973.17773.17722.38943.14703.14732.52332.80783.51161.47011.35752.17771.0927
H143.46854.17294.17233.44334.14424.14462.87352.72493.95902.25792.18082.61871.0927

picture of 3-Methylenecyclopentene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C4 H5 112.210 C1 C4 H6 112.213
C1 C4 C11 103.754 C1 C10 C7 126.622
C1 C10 C13 106.925 H2 C1 H3 106.798
H2 C1 C4 111.551 H2 C1 C10 110.791
H3 C1 C4 111.544 H3 C1 C10 110.784
C4 C1 C10 105.448 C4 C11 H12 122.788
C4 C11 C13 112.128 H5 C4 H6 105.957
H5 C4 C11 111.425 H6 C4 C11 111.431
C7 C10 C13 126.453 H8 C7 H9 116.832
H8 C7 C10 121.284 H9 C7 C10 121.883
C10 C13 C11 111.745 C10 C13 H14 122.851
C11 C13 H14 125.403 H12 C11 C13 125.084
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.689      
2 H 0.159      
3 H 0.159      
4 C -0.411      
5 H 0.151      
6 H 0.151      
7 C -0.170      
8 H 0.120      
9 H 0.120      
10 C 0.401      
11 C -0.015      
12 H 0.114      
13 C -0.196      
14 H 0.106      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.863 -0.298 0.000 0.913
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -36.832 -0.138 0.000
y -0.138 -35.539 0.000
z 0.000 0.000 -40.282
Traceless
 xyz
x 1.078 -0.138 0.000
y -0.138 3.018 0.000
z 0.000 0.000 -4.096
Polar
3z2-r2-8.192
x2-y2-1.293
xy-0.138
xz0.000
yz0.000


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


<r2> (average value of r2) Å2
<r2> 156.541
(<r2>)1/2 12.512