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

using model chemistry: G4

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at G4
 hartrees
Energy at 0K-233.248752
Energy at 298.15K-233.242175
HF Energy-233.436466
Nuclear repulsion energy216.620711
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/6-31G(2df,p)
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 3225 3112 12.54      
2 A 3210 3097 17.97      
3 A 3185 3074 2.93      
4 A 3145 3035 5.34      
5 A 3088 2980 22.09      
6 A 3053 2946 23.06      
7 A 3041 2935 14.31      
8 A 3020 2915 41.57      
9 A 1710 1651 23.62      
10 A 1652 1594 0.71      
11 A 1495 1443 2.35      
12 A 1472 1420 0.83      
13 A 1460 1409 0.94      
14 A 1371 1323 0.58      
15 A 1327 1281 1.44      
16 A 1278 1233 0.66      
17 A 1258 1214 1.57      
18 A 1243 1199 0.13      
19 A 1164 1124 0.86      
20 A 1124 1085 1.58      
21 A 1032 996 3.38      
22 A 1012 977 2.79      
23 A 986 951 1.99      
24 A 960 926 2.09      
25 A 916 884 6.98      
26 A 892 861 31.53      
27 A 852 822 0.47      
28 A 851 821 11.01      
29 A 798 770 4.99      
30 A 777 750 0.69      
31 A 684 660 7.45      
32 A 628 606 0.36      
33 A 521 503 10.26      
34 A 358 346 0.87      
35 A 296 286 0.47      
36 A 60 58 0.01      

Unscaled Zero Point Vibrational Energy (zpe) 26571.7 cm-1
Scaled (by 0.965) Zero Point Vibrational Energy (zpe) 25641.7 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/6-31G(2df,p)
ABC
0.24408 0.11534 0.08065

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/6-31G(2df,p)

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.102 -1.195 0.001
H2 -0.074 -1.826 -0.876
H3 -0.073 -1.824 0.879
C4 1.538 -0.601 -0.001
H5 2.118 -0.917 -0.877
H6 2.120 -0.918 0.875
C7 -2.173 -0.019 -0.000
H8 -2.757 0.895 -0.001
H9 -2.728 -0.952 -0.001
C10 -0.837 0.009 0.000
C11 1.309 0.891 -0.000
H12 2.125 1.605 -0.000
C13 0.007 1.204 0.000
H14 -0.403 2.207 0.000

Atom - Atom Distances (Å)
  C1 H2 H3 C4 H5 H6 C7 H8 H9 C10 C11 H12 C13 H14
C11.09441.09441.55472.21662.21662.56023.54142.83971.52722.40983.45432.40063.4399
H21.09441.75512.20592.37262.94982.90483.92082.92842.17263.17154.16793.15504.1410
H31.09441.75512.20572.95052.37242.90543.92112.92982.17243.17034.16653.15384.1396
C41.55472.20592.20571.09741.09743.75604.54844.28022.45251.50892.28212.36663.4140
H52.21662.37262.95051.09741.75184.47025.27434.92433.21872.16602.66973.11824.1095
H62.21662.94982.37241.09741.75184.47165.27584.92573.21972.16612.66953.11894.1103
C72.56022.90482.90543.75604.47024.47161.08511.08511.33573.59814.59402.49902.8441
H83.54143.92083.92114.54845.27435.27581.08511.84682.11444.06584.93352.78122.6952
H92.83972.92842.92984.28024.92434.92571.08511.84682.12074.43675.48473.48173.9221
C101.52722.17262.17242.45253.21873.21971.33572.11442.12072.31973.36441.46232.2405
C112.40983.17153.17031.50892.16602.16613.59814.06584.43672.31971.08461.33892.1597
H123.45434.16794.16652.28212.66972.66954.59404.93355.48473.36441.08462.15582.5990
C132.40063.15503.15382.36663.11823.11892.49902.78123.48171.46231.33892.15581.0844
H143.43994.14104.13963.41404.10954.11032.84412.69523.92212.24052.15972.59901.0844

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 112.297 C1 C4 H6 112.300
C1 C4 C11 103.581 C1 C10 C7 126.862
C1 C10 C13 106.576 H2 C1 H3 106.728
H2 C1 C4 111.541 H2 C1 C10 110.732
H3 C1 C4 111.522 H3 C1 C10 110.714
C4 C1 C10 105.676 C4 C11 H12 122.269
C4 C11 C13 112.381 H5 C4 H6 106.071
H5 C4 C11 111.363 H6 C4 C11 111.373
C7 C10 C13 126.562 H8 C7 H9 116.535
H8 C7 C10 121.462 H9 C7 C10 122.003
C10 C13 C11 111.786 C10 C13 H14 122.422
C11 C13 H14 125.792 H12 C11 C13 125.350
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.310      
2 H 0.117      
3 H 0.117      
4 C -0.264      
5 H 0.110      
6 H 0.110      
7 C -0.441      
8 H 0.099      
9 H 0.099      
10 C 0.369      
11 C -0.068      
12 H 0.097      
13 C -0.127      
14 H 0.093      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.773 -0.168 0.000 0.791
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å


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> 153.027
(<r2>)1/2 12.370