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C-C bond cleavage in aromatic molecules ; benzene, toluene and naphthalene
Joint Authors
Shanshal, Muthanna
Mualla, Mustafa M.
Source
Issue
Vol. 8, Issue 2 (30 Jun. 2013), pp.113-124, 12 p.
Publisher
Yarmouk University Deanship of Research and Graduate Studies
Publication Date
2013-06-30
Country of Publication
Jordan
No. of Pages
12
Main Subjects
Topics
Abstract EN
The calculated energy reaction path, for the C-C bond cleavage in benzene, applying the Density Functional Theory method, yielded the values for the activation energy, Ea *= 221.561kcal/mol and reaction energy, Er= 146.938kcal/mol respectively.
The corresponding values for the different bonds in toluene are; C1-C2, Ea *= 200.640kcal/mol, Er =140.800 kcal/mol; C2-C3, Ea * = 214.790kcal/mol, Er= 154.160kcal/mol; C3-C4, Ea *= 209.560kcal/mol, Er= 174.110kcal/mol; C1-C7, Ea *= 148.050kcal/mol, Er = 104.230kcal/mol.
For naphthalene the calculated energy values were; C1-C2, Ea *= 226.640kcal/mol, Er = 157.094kcal/mol; C2-C3, Ea *= 255.677kcal/mol, Er= 205.147kcal/mol; C9-C10, Ea *= 299.851kcal/mol, Er= 270.575kcal/mol.
The geometries of all transition states were coplanar with (4n+2) electrons with the exception of toluene C2-C3 bond reaction where the C2 atom moves towards C6 to form a cyclopropene structure.
The C2-C3 bond cleavage in naphthalene proceeds towards the splitting of two acetylene molecules from the mother molecule, beyond the transition state.
The geometries of the aromatic transition states showed typical bond alternation distances i.e.
classical C=C and C-C bonds.
American Psychological Association (APA)
Shanshal, Muthanna& Mualla, Mustafa M.. 2013. C-C bond cleavage in aromatic molecules ; benzene, toluene and naphthalene. Jordan Journal of Chemistry،Vol. 8, no. 2, pp.113-124.
https://search.emarefa.net/detail/BIM-334561
Modern Language Association (MLA)
Shanshal, Muthanna& Mualla, Mustafa M.. C-C bond cleavage in aromatic molecules ; benzene, toluene and naphthalene. Jordan Journal of Chemistry Vol. 8, no. 2 (Jun. 2013), pp.113-124.
https://search.emarefa.net/detail/BIM-334561
American Medical Association (AMA)
Shanshal, Muthanna& Mualla, Mustafa M.. C-C bond cleavage in aromatic molecules ; benzene, toluene and naphthalene. Jordan Journal of Chemistry. 2013. Vol. 8, no. 2, pp.113-124.
https://search.emarefa.net/detail/BIM-334561
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references : p. 124
Record ID
BIM-334561