Synthesis and optical spectroscopy of linear long-chain di-terminal alkynes and their Pt-σ-acetylide polymeric complexes

Muhammad S. Khan, Ashok K. Kakkar, Nicholas J. Long, Jack Lewis*, Paul Raithby, Paul Nguyen, Todd B. Marder, Felix Wittmann, Richard H. Friend

*المؤلف المقابل لهذا العمل

نتاج البحث: المساهمة في مجلةمقالمراجعة النظراء

131 اقتباسات (Scopus)

ملخص

A variety of straight-chain alkynes with extended π-conjugation through benzene, anthracene and thiophene linker units in the backbone, H-C≡C-R′-C≡C-R-C≡C-R′-C≡C-H (R = p-C 6H4, 9,10-C14H8, 2,5-C 4H2S; R′ = p-C6H4, p-C 6H4-C6H4-p) has been synthesized. The alkynyl chromophores with an anthracene spacer unit are highly emissive in solution with luminescence quantum yields of up to 0.5. The platinum σ-acetylide polymeric complexes of the above ligands show strong absorptions associated with metal-to-alkynyl ligand charge transfer (MLCT) transitions. It is clear that the π-conjugation is maintained through the metal centres and the optical gap for the polymer, [Pt(PBun 3)2-C≡C-p-C6H4-C≡C-9,10- C14H8-C≡C-p-C6H4-C≡C] n is lower than for the complexes [Pt(PBn 3)2-C≡C-R′-C≡C-R-C≡C-R′- C≡C]n (R = p-C6H4, 2,5-C 4H2S; R′ = p-C6H4; p-C 6H4-C6H4-p).

اللغة الأصليةEnglish
الصفحات (من إلى)1227-1232
عدد الصفحات6
دوريةJournal of Materials Chemistry
مستوى الصوت4
رقم الإصدار8
المعرِّفات الرقمية للأشياء
حالة النشرPublished - 1994
منشور خارجيًانعم

ASJC Scopus subject areas

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