TY - JOUR
T1 - Synthesis and magnetic property of polyacetylene bearing π-conjugated bis(diphenylene)phenylallyl radical†
AU - Nishide, Hiroyuki
AU - Yoshioka, Naoki
AU - Saitoh, Yukoh
AU - Gotoh, Ritsuko
AU - Miyakawa, Takeshi
AU - Tsuchida, Eishun
N1 - Funding Information:
This work was partially supported by a Grant-in-Aid for Scientific Research (No. 02650670, No. 02953052, and Priority Area of “Molecular Magnetism” No. 04242104) from the Ministry of Education, Science and Culture, Japan.
PY - 1992/9/1
Y1 - 1992/9/1
N2 - m- and p-Bis(diphenylene)propenylphenylacetylene (m-, p-8) were synthesized and polymerized with WCI6, moc15, and Rh catalyst, yielding solvent-soluble poly(phenylacetylene)s bearing a “π-conjugated bis(diphenylene)propenyl groups (m-, p-7a). The polymers gave their polyanion derivatives, which were electrolytically and chemically oxidized to yield the corresponding polyradicals (m-, p-7b). The polyradicals were chemically very stable due to the resonance stabilization of an unpaired electron whose spin concentration could be increased up to ca. 2 x 1023 spins per molar monomer unit. ESR spectroscopy suggested an antiferromagnetic interaction between unpaired electrons.
AB - m- and p-Bis(diphenylene)propenylphenylacetylene (m-, p-8) were synthesized and polymerized with WCI6, moc15, and Rh catalyst, yielding solvent-soluble poly(phenylacetylene)s bearing a “π-conjugated bis(diphenylene)propenyl groups (m-, p-7a). The polymers gave their polyanion derivatives, which were electrolytically and chemically oxidized to yield the corresponding polyradicals (m-, p-7b). The polyradicals were chemically very stable due to the resonance stabilization of an unpaired electron whose spin concentration could be increased up to ca. 2 x 1023 spins per molar monomer unit. ESR spectroscopy suggested an antiferromagnetic interaction between unpaired electrons.
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U2 - 10.1080/10601329208054115
DO - 10.1080/10601329208054115
M3 - Article
AN - SCOPUS:0026985230
SN - 1060-1325
VL - 29
SP - 775
EP - 786
JO - Journal of Macromolecular Science, Part A
JF - Journal of Macromolecular Science, Part A
IS - 9
ER -