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All results from a given calculation for C6H8 (3-Methylenecyclopentene)

using model chemistry: B3LYP/CEP-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 B3LYP/CEP-31G
 hartrees
Energy at 0K-38.607583
Energy at 298.15K-38.615837
Nuclear repulsion energy112.024183
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-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 3230 3128 34.41      
2 A 3220 3119 21.15      
3 A 3186 3085 3.48      
4 A 3146 3047 12.39      
5 A 3111 3013 68.80      
6 A 3065 2968 24.41      
7 A 3061 2964 43.94      
8 A 3029 2933 56.77      
9 A 1693 1639 32.70      
10 A 1628 1577 1.04      
11 A 1507 1459 7.01      
12 A 1484 1437 2.48      
13 A 1463 1417 1.49      
14 A 1369 1326 1.55      
15 A 1332 1289 3.73      
16 A 1290 1249 0.30      
17 A 1265 1225 4.17      
18 A 1240 1201 0.57      
19 A 1162 1126 1.11      
20 A 1123 1088 2.30      
21 A 1029 996 12.97      
22 A 1019 987 4.55      
23 A 1012 980 13.01      
24 A 957 927 1.91      
25 A 927 898 96.60      
26 A 911 882 9.98      
27 A 851 824 22.38      
28 A 846 820 0.98      
29 A 796 771 19.90      
30 A 768 744 1.38      
31 A 677 656 12.95      
32 A 618 598 0.68      
33 A 501 485 23.87      
34 A 345 334 0.61      
35 A 290 281 1.55      
36 A 55 53 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 26602.7 cm-1
Scaled (by 0.9684) Zero Point Vibrational Energy (zpe) 25762.0 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-31G
ABC
0.23591 0.11098 0.07768

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/CEP-31G

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.115 -1.197 0.000
H2 -0.053 -1.830 -0.887
H3 -0.053 -1.830 0.887
C4 1.567 -0.580 -0.000
H5 2.150 -0.893 -0.886
H6 2.150 -0.893 0.886
C7 -2.224 -0.024 -0.000
H8 -2.820 0.894 -0.000
H9 -2.774 -0.971 -0.000
C10 -0.851 0.017 0.000
C11 1.327 0.938 -0.000
H12 2.141 1.665 -0.000
C13 -0.011 1.247 0.000
H14 -0.435 2.253 0.000

Atom - Atom Distances (Å)
  C1 H2 H3 C4 H5 H6 C7 H8 H9 C10 C11 H12 C13 H14
C11.10311.10311.57752.24012.24012.61673.60372.89771.55132.45413.50642.44693.4930
H21.10311.77472.23062.39422.97942.96003.98302.98772.19903.21724.22123.20264.1954
H31.10311.77472.23062.97942.39422.96003.98302.98782.19903.21724.22123.20264.1954
C41.57752.23062.23061.10601.10603.83164.62794.35832.49041.53622.31702.41423.4685
H52.24012.39422.97941.10601.77204.54685.35545.00343.25872.19422.70723.16824.1670
H62.24012.97942.39421.10601.77204.54685.35555.00353.25872.19422.70723.16824.1670
C72.61672.96002.96003.83164.54684.54681.09471.09471.37393.67864.68082.55162.8955
H83.60373.98303.98304.62795.35545.35551.09471.86572.15564.14675.02082.83042.7446
H92.89772.98772.98784.35835.00345.00351.09471.86572.16184.52265.57723.54233.9825
C101.55132.19902.19902.49043.25873.25871.37392.15562.16182.36393.41591.48892.2738
C112.45413.21723.21721.53622.19422.19423.67864.14674.52262.36391.09231.37342.1984
H123.50644.22124.22122.31702.70722.70724.68085.02085.57723.41591.09232.19322.6426
C132.44693.20263.20262.41423.16823.16822.55162.83043.54231.48891.37342.19321.0913
H143.49304.19544.19543.46854.16704.16702.89552.74463.98252.27382.19842.64261.0913

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 111.984 C1 C4 H6 111.984
C1 C4 C11 104.021 C1 C10 C7 126.793
C1 C10 C13 107.174 H2 C1 H3 107.109
H2 C1 C4 111.409 H2 C1 C10 110.745
H3 C1 C4 111.408 H3 C1 C10 110.744
C4 C1 C10 105.488 C4 C11 H12 122.754
C4 C11 C13 112.022 H5 C4 H6 106.470
H5 C4 C11 111.248 H6 C4 C11 111.248
C7 C10 C13 126.033 H8 C7 H9 116.887
H8 C7 C10 121.256 H9 C7 C10 121.857
C10 C13 C11 111.295 C10 C13 H14 122.853
C11 C13 H14 125.852 H12 C11 C13 125.224
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/CEP-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.140      
2 H 0.147      
3 H 0.147      
4 C -0.287      
5 H 0.140      
6 H 0.140      
7 C -0.777      
8 H 0.205      
9 H 0.206      
10 C 0.140      
11 C -0.440      
12 H 0.291      
13 C -0.092      
14 H 0.322      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.898 -0.312 0.000 0.950
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -35.201 -0.176 0.000
y -0.176 -33.910 0.000
z 0.000 0.000 -39.355
Traceless
 xyz
x 1.432 -0.176 0.000
y -0.176 3.368 0.000
z 0.000 0.000 -4.799
Polar
3z2-r2-9.599
x2-y2-1.291
xy-0.176
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 14.907 0.162 -0.001
y 0.162 8.718 0.000
z -0.001 0.000 5.024


<r2> (average value of r2) Å2
<r2> 129.688
(<r2>)1/2 11.388