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

using model chemistry: MP2/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at MP2/3-21G
 hartrees
Energy at 0K-231.070722
Energy at 298.15K-231.079025
HF Energy-230.537785
Nuclear repulsion energy214.425193
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 MP2/3-21G
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 3247 3099 13.37      
2 A 3240 3093 12.95      
3 A 3211 3064 2.19      
4 A 3165 3021 5.83      
5 A 3164 3020 20.14      
6 A 3131 2988 7.69      
7 A 3114 2973 15.33      
8 A 3093 2953 22.28      
9 A 1692 1615 5.93      
10 A 1619 1545 0.06      
11 A 1586 1514 2.56      
12 A 1569 1498 1.08      
13 A 1523 1454 0.34      
14 A 1401 1337 0.80      
15 A 1360 1298 3.23      
16 A 1326 1266 0.97      
17 A 1306 1246 0.20      
18 A 1261 1204 2.49      
19 A 1235 1179 0.39      
20 A 1172 1118 1.25      
21 A 1070 1021 2.70      
22 A 1003 957 1.14      
23 A 950 907 1.34      
24 A 945 902 0.86      
25 A 899 858 43.48      
26 A 891 851 3.94      
27 A 873 833 9.91      
28 A 835 797 0.36      
29 A 794 757 12.14      
30 A 793 757 6.67      
31 A 678 647 21.05      
32 A 633 604 0.23      
33 A 508 485 14.11      
34 A 368 352 0.20      
35 A 279 266 1.23      
36 A 47 44 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 26987.9 cm-1
Scaled (by 0.9545) Zero Point Vibrational Energy (zpe) 25759.9 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 MP2/3-21G
ABC
0.23757 0.11317 0.07894

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/3-21G

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.094 -1.216 0.001
H2 -0.077 -1.831 -0.889
H3 -0.076 -1.830 0.891
C4 1.556 -0.615 -0.000
H5 2.116 -0.930 -0.888
H6 2.118 -0.930 0.887
C7 -2.192 -0.016 -0.000
H8 -2.783 0.898 -0.001
H9 -2.746 -0.951 -0.001
C10 -0.847 0.013 0.000
C11 1.325 0.901 -0.000
H12 2.148 1.609 -0.000
C13 0.012 1.222 0.000
H14 -0.390 2.231 0.001

Atom - Atom Distances (Å)
  C1 H2 H3 C4 H5 H6 C7 H8 H9 C10 C11 H12 C13 H14
C11.09461.09461.58052.22752.22752.58263.57002.85261.54852.44943.49242.44013.4812
H21.09461.77922.22142.37172.96332.92573.94402.94732.18753.19744.19203.18184.1703
H31.09461.77922.22132.96382.37152.92633.94432.94862.18743.19654.19093.18094.1692
C41.58052.22142.22131.09611.09613.79584.59474.31502.48381.53392.30132.40003.4479
H52.22752.37172.96381.09611.77494.49335.30364.94293.23442.18352.68963.13844.1307
H62.22752.96332.37151.09611.77494.49445.30484.94413.23512.18352.68943.13884.1311
C72.58262.92572.92633.79584.49334.49441.08731.08701.34553.63504.63372.52822.8800
H83.57003.94403.94434.59475.30365.30481.08731.84882.12804.10784.98102.81352.7390
H92.85262.94732.94864.31504.94294.94411.08701.84882.12974.47275.52243.51153.9591
C101.54852.18752.18742.48383.23443.23511.34552.12802.12972.34683.39301.48332.2643
C112.44943.19743.19651.53392.18352.18353.63504.10784.47272.34681.08471.35182.1703
H123.49244.19204.19092.30132.68962.68944.63374.98105.52243.39301.08472.17002.6126
C132.44013.18183.18092.40003.13843.13882.52822.81353.51151.48331.35182.17001.0858
H143.48124.17034.16923.44794.13074.13112.88002.73903.95912.26432.17032.61261.0858

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 111.365 C1 C4 H6 111.365
C1 C4 C11 103.704 C1 C10 C7 126.211
C1 C10 C13 107.168 H2 C1 H3 108.732
H2 C1 C4 110.979 H2 C1 C10 110.535
H3 C1 C4 110.970 H3 C1 C10 110.526
C4 C1 C10 105.081 C4 C11 H12 122.062
C4 C11 C13 112.394 H5 C4 H6 108.117
H5 C4 C11 111.149 H6 C4 C11 111.150
C7 C10 C13 126.620 H8 C7 H9 116.486
H8 C7 C10 121.660 H9 C7 C10 121.853
C10 C13 C11 111.653 C10 C13 H14 122.863
C11 C13 H14 125.485 H12 C11 C13 125.544
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at MP2/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.414     -0.144
2 H 0.209     0.071
3 H 0.209     0.071
4 C -0.411     -0.084
5 H 0.201     0.061
6 H 0.201     0.061
7 C -0.389     -0.613
8 H 0.177     0.216
9 H 0.176     0.201
10 C 0.005     0.286
11 C -0.167     -0.080
12 H 0.189     0.111
13 C -0.177     -0.338
14 H 0.192     0.180


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.504 -0.177 0.000 0.535
CHELPG        
AIM        
ESP 0.508 -0.177 0.000 0.538


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -35.708 -0.072 0.000
y -0.072 -35.305 0.001
z 0.000 0.001 -40.267
Traceless
 xyz
x 2.078 -0.072 0.000
y -0.072 2.683 0.001
z 0.000 0.001 -4.761
Polar
3z2-r2-9.521
x2-y2-0.403
xy-0.072
xz0.000
yz0.001


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 11.890 -0.006 0.001
y -0.006 7.941 0.000
z 0.001 0.000 4.222


<r2> (average value of r2) Å2
<r2> 156.173
(<r2>)1/2 12.497