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

using model chemistry: B3PW91/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at B3PW91/6-31G*
 hartrees
Energy at 0K-233.331664
Energy at 298.15K-233.339945
Nuclear repulsion energy216.670482
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 B3PW91/6-31G*
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 3252 3111 15.11      
2 A 3235 3095 20.59      
3 A 3212 3073 4.61      
4 A 3171 3034 7.38      
5 A 3119 2984 21.47      
6 A 3079 2946 21.13      
7 A 3071 2938 15.85      
8 A 3044 2913 42.21      
9 A 1729 1654 24.64      
10 A 1672 1599 0.48      
11 A 1520 1454 3.56      
12 A 1493 1428 1.20      
13 A 1474 1410 0.79      
14 A 1386 1326 0.90      
15 A 1346 1288 2.35      
16 A 1291 1235 0.30      
17 A 1281 1226 1.98      
18 A 1254 1200 0.23      
19 A 1180 1129 0.49      
20 A 1131 1082 1.69      
21 A 1035 990 4.02      
22 A 1029 984 3.37      
23 A 979 937 2.35      
24 A 972 929 2.07      
25 A 930 890 7.46      
26 A 880 842 41.48      
27 A 863 826 0.52      
28 A 853 816 14.25      
29 A 796 761 9.34      
30 A 778 744 0.80      
31 A 678 648 10.22      
32 A 630 602 0.39      
33 A 515 493 13.90      
34 A 357 341 0.70      
35 A 293 280 0.64      
36 A 54 52 0.01      

Unscaled Zero Point Vibrational Energy (zpe) 26791.1 cm-1
Scaled (by 0.9567) Zero Point Vibrational Energy (zpe) 25631.1 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 B3PW91/6-31G*
ABC
0.24467 0.11531 0.08070

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/6-31G*

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.102 -1.192 0.003
H2 -0.076 -1.826 -0.872
H3 -0.072 -1.817 0.885
C4 1.535 -0.601 -0.003
H5 2.112 -0.917 -0.883
H6 2.120 -0.920 0.871
C7 -2.174 -0.020 -0.002
H8 -2.760 0.896 -0.003
H9 -2.729 -0.955 -0.003
C10 -0.835 0.010 0.001
C11 1.311 0.887 0.000
H12 2.128 1.603 -0.000
C13 0.007 1.204 0.001
H14 -0.399 2.212 0.003

Atom - Atom Distances (Å)
  C1 H2 H3 C4 H5 H6 C7 H8 H9 C10 C11 H12 C13 H14
C11.09561.09571.54992.21352.21362.56073.54302.84091.52362.40413.45142.39723.4399
H21.09561.75772.20322.36972.94722.90223.92052.92412.16973.16924.16853.15434.1439
H31.09571.75772.20222.95052.36842.90533.92182.93152.16873.16324.16173.14864.1375
C41.54992.20322.20221.09891.09883.75514.54924.27872.44761.50482.28222.36543.4136
H52.21352.36972.95051.09891.75434.46745.27304.92043.21322.16252.67013.11674.1084
H62.21362.94722.36841.09881.75434.47415.28044.92733.21782.16302.66903.12004.1118
C72.56072.90222.90533.75514.46744.47411.08711.08701.34013.60114.59842.50072.8517
H83.54303.92053.92184.54925.27305.28041.08711.85112.11984.07114.93952.78402.7034
H92.84092.92412.93154.27874.92044.92731.08701.85112.12554.43945.48923.48443.9313
C101.52362.16972.16872.44763.21323.21781.34012.11982.12552.31773.36401.46052.2446
C112.40413.16923.16321.50482.16252.16303.60114.07114.43942.31771.08671.34222.1628
H123.45144.16854.16172.28222.67012.66904.59844.93955.48923.36401.08672.15892.5993
C132.39723.15433.14862.36543.11673.12002.50072.78403.48441.46051.34222.15891.0864
H143.43994.14394.13753.41364.10844.11182.85172.70343.93132.24462.16282.59931.0864

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 112.243 C1 C4 H6 112.263
C1 C4 C11 103.805 C1 C10 C7 126.692
C1 C10 C13 106.878 H2 C1 H3 106.671
H2 C1 C4 111.625 H2 C1 C10 110.809
H3 C1 C4 111.531 H3 C1 C10 110.719
C4 C1 C10 105.561 C4 C11 H12 122.623
C4 C11 C13 112.246 H5 C4 H6 105.921
H5 C4 C11 111.355 H6 C4 C11 111.405
C7 C10 C13 126.431 H8 C7 H9 116.729
H8 C7 C10 121.353 H9 C7 C10 121.918
C10 C13 C11 111.510 C10 C13 H14 122.927
C11 C13 H14 125.563 H12 C11 C13 125.131
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.395     -0.137
2 H 0.185     0.068
3 H 0.185     0.068
4 C -0.366     -0.108
5 H 0.177     0.064
6 H 0.177     0.064
7 C -0.477     -0.684
8 H 0.159     0.224
9 H 0.158     0.209
10 C 0.170     0.357
11 C -0.165     -0.043
12 H 0.162     0.097
13 C -0.129     -0.354
14 H 0.159     0.174


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.774 -0.213 0.000 0.802
CHELPG        
AIM        
ESP 0.773 -0.210 0.001 0.801


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -34.823 -0.049 0.001
y -0.049 -33.739 0.002
z 0.001 0.002 -38.441
Traceless
 xyz
x 1.267 -0.049 0.001
y -0.049 2.893 0.002
z 0.001 0.002 -4.160
Polar
3z2-r2-8.320
x2-y2-1.084
xy-0.049
xz0.001
yz0.002


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> 152.750
(<r2>)1/2 12.359