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: B3LYP/CEP-121G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at B3LYP/CEP-121G
 hartrees
Energy at 0K-38.625634
Energy at 298.15K-38.634004
Nuclear repulsion energy112.605506
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 B3LYP/CEP-121G
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A 3200 3118 30.24      
2 A 3187 3106 31.51      
3 A 3157 3076 5.68      
4 A 3103 3024 12.18      
5 A 3061 2983 45.64      
6 A 3016 2939 21.18      
7 A 3015 2939 41.61      
8 A 2983 2907 56.87      
9 A 1672 1629 34.37      
10 A 1612 1570 0.90      
11 A 1519 1480 6.48      
12 A 1496 1458 2.06      
13 A 1466 1428 0.82      
14 A 1367 1332 1.09      
15 A 1329 1295 2.49      
16 A 1291 1258 0.16      
17 A 1260 1228 3.47      
18 A 1240 1208 0.22      
19 A 1168 1138 1.44      
20 A 1127 1098 2.02      
21 A 1046 1019 6.64      
22 A 1016 990 2.80      
23 A 996 971 6.03      
24 A 957 933 2.33      
25 A 919 895 62.71      
26 A 908 885 9.82      
27 A 851 830 14.59      
28 A 841 820 0.63      
29 A 803 783 12.94      
30 A 773 754 0.94      
31 A 679 662 12.73      
32 A 622 606 0.67      
33 A 513 500 18.07      
34 A 358 348 0.51      
35 A 300 292 1.04      
36 A 63 62 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 26456.9 cm-1
Scaled (by 0.9745) Zero Point Vibrational Energy (zpe) 25782.3 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 B3LYP/CEP-121G
ABC
0.23809 0.11225 0.07851

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/CEP-121G

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.111 -1.191 0.000
H2 0.057 -1.822 0.883
H3 0.057 -1.823 -0.882
C4 -1.560 -0.578 -0.000
H5 -2.141 -0.891 0.881
H6 -2.140 -0.891 -0.882
C7 2.209 -0.023 -0.000
H8 2.805 0.889 -0.000
H9 2.755 -0.965 -0.000
C10 0.850 0.019 0.000
C11 -1.318 0.933 0.000
H12 -2.130 1.657 0.000
C13 0.008 1.240 0.000
H14 0.426 2.244 0.000

Atom - Atom Distances (Å)
  C1 H2 H3 C4 H5 H6 C7 H8 H9 C10 C11 H12 C13 H14
C11.09791.09791.57332.23292.23292.59803.58212.87471.54612.44313.49122.43483.4774
H21.09791.76492.22312.38712.96802.94113.96012.96522.19103.20314.20323.18774.1776
H31.09791.76492.22322.96772.38712.94093.96002.96472.19113.20364.20373.18824.1781
C41.57332.22312.22321.10071.10073.80984.60494.33202.48341.53012.30682.40153.4512
H52.23292.38712.96771.10071.76224.52275.33004.97493.24872.18632.69653.15284.1471
H62.23292.96802.38711.10071.76224.52215.32934.97443.24832.18622.69663.15254.1467
C72.59802.94112.94093.80984.52274.52211.08911.08881.35933.65434.65242.53742.8841
H83.58213.96013.96004.60495.33005.32931.08911.85462.13924.12324.99382.81852.7377
H92.87472.96522.96474.33204.97494.97441.08881.85462.14364.49315.54353.52213.9649
C101.54612.19102.19112.48343.24873.24831.35932.13922.14362.35303.40031.48322.2650
C112.44313.20313.20361.53012.18632.18623.65434.12324.49312.35301.08781.36172.1823
H123.49124.20324.20372.30682.69652.69664.65244.99385.54353.40031.08782.17812.6221
C132.43483.18773.18822.40153.15283.15252.53742.81853.52211.48321.36172.17811.0873
H143.47744.17764.17813.45124.14714.14672.88412.73773.96492.26502.18232.62211.0873

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 112.027 C1 C4 H6 112.024
C1 C4 C11 103.843 C1 C10 C7 126.684
C1 C10 C13 106.956 H2 C1 H3 106.981
H2 C1 C4 111.418 H2 C1 C10 110.781
H3 C1 C4 111.425 H3 C1 C10 110.788
C4 C1 C10 105.515 C4 C11 H12 122.669
C4 C11 C13 112.159 H5 C4 H6 106.350
H5 C4 C11 111.365 H6 C4 C11 111.359
C7 C10 C13 126.360 H8 C7 H9 116.764
H8 C7 C10 121.393 H9 C7 C10 121.843
C10 C13 C11 111.527 C10 C13 H14 122.817
C11 C13 H14 125.655 H12 C11 C13 125.172
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/CEP-121G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.462      
2 H 0.157      
3 H 0.157      
4 C -0.352      
5 H 0.148      
6 H 0.148      
7 C -0.607      
8 H 0.128      
9 H 0.130      
10 C 0.475      
11 C -0.155      
12 H 0.156      
13 C -0.096      
14 H 0.173      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.860 -0.276 0.000 0.903
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -35.989 0.127 0.000
y 0.127 -34.753 0.000
z 0.000 0.000 -39.782
Traceless
 xyz
x 1.279 0.127 0.000
y 0.127 3.132 0.000
z 0.000 0.000 -4.411
Polar
3z2-r2-8.822
x2-y2-1.236
xy0.127
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 15.388 -0.074 0.001
y -0.074 9.439 0.002
z 0.001 0.002 6.003


<r2> (average value of r2) Å2
<r2> 129.001
(<r2>)1/2 11.358