Mechanism of $$\mathrm{E}$$-bridge formation by various $$\mathrm{PAH}$$ molecules: A theoretical study
Journal Article
·
· Chemical Physics Letters
- Samara National Research University, Samara (Russia); OSTI
- Samara National Research University, Samara (Russia)
- University of California, Berkeley, CA (United States)
- Florida International University (FIU), Miami, FL (United States)
- Samara National Research University, Samara (Russia); Florida International University (FIU), Miami, FL (United States)
Potential energy surfaces (PES) for dimerization of acepyrene-pyrene, aceanthracene-anthracene, and acenaphthalene-naphthalene were computed by the G3(MP2,CC) and ONIOM2(G3(MP2,CC):B3LYP/6-31G(d)) methods. Close agreement of relative energies of corresponding species along reaction paths for different reactions was found suggesting that the PES for E-bridge formation depends weakly on the number of rings in the interacting monomers. Our results indicate that the reaction rate is controlled by the dynamics of the initial collision, which may depend on the monomer size. The ONIOM approach is proposed as an accurate tool for calculations of PES in large PAH systems being more reliable than various DFT methods.
- Research Organization:
- Florida International University (FIU), Miami, FL (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC), Basic Energy Sciences (BES); Russian Science Foundation
- Grant/Contract Number:
- FG02-04ER15570
- OSTI ID:
- 1977052
- Alternate ID(s):
- OSTI ID: 1960624
- Journal Information:
- Chemical Physics Letters, Journal Name: Chemical Physics Letters Journal Issue: C Vol. 799; ISSN 0009-2614
- Publisher:
- ElsevierCopyright Statement
- Country of Publication:
- United States
- Language:
- English
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