Journal
JOURNAL OF PHYSICAL CHEMISTRY A
Volume 125, Issue 30, Pages 6562-6570Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acs.jpca.1c02794
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Funding
- Ministry of Science and Higher Education of the Russian Federation [0852-2020-0031]
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Computational studies have shown that zethrenes with octacene and nonacene linkers, as well as bisphenalenyls with heptacene, octacene, and nonacene linker groups, exhibit tetraradicaloid nature, making them potential building blocks for organic optoelectronic and spintronic devices characterized by the presence of two types of paramagnetic centers.
Polycyclic aromatic hydrocarbons are of special interest due to their promising nonlinear optical and magnetic properties. A series of acene-linked zethrenes and bisphenalenyls comprising from five to nine benzene rings in the linker group have been computationally studied by the DFT UB3LYP/6-311+ +G(d,p) quantum-chemical modeling of their electronic structure, possible spin states, and exchange interactions. The zethrenes with octacene and nonacene linkers as well as bisphenalenyls comprising heptacene, octacene, and nonacene linker groups have been revealed to possess tetraradicaloid nature, which makes them promising building blocks for organic optoelectronic and spintronic devices. The results obtained open a way of constructing tetraradicaloid organic molecules characterized by the presence of two types of paramagnetic centers.
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