کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1324561 977346 2009 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Cobaltacarborane–phthalocyanine conjugates: Syntheses and photophysical properties
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی معدنی
پیش نمایش صفحه اول مقاله
Cobaltacarborane–phthalocyanine conjugates: Syntheses and photophysical properties
چکیده انگلیسی

Syntheses of two new cobaltacarborane–phthalocyanine conjugates, one anionic (Pc 6) and one zwitterionic (Pc 7), were accomplished via cyclotetramerization of the corresponding cobaltacarborane-substituted phthalonitriles (4 or 5) with excess phthalonitrile in quinoline. X-ray structures of two phthalonitrile precursors (2 and 3) were obtained and are discussed, and the absorption and emission properties of the two cobaltacarborane–phthalocyanine conjugates in several solvents were investigated. The anionic conjugate 6 exists mainly as a monomer in polar organic solvents and has fluorescence quantum yields in the region 0.2–0.3. The zwitterionic conjugate 7 aggregates in solution and displays lower quantum yields ∼0.1 in organic solvents.

The syntheses of two cobaltacarboranyl–phthalocyanines, one anionic and one zwitterionic, are described. While the anionic phthalocyanine exists mainly as a monomer in polar organic solvents and has fluorescence quantum yields in the region 0.2–0.3, the zwitterionic phthalocyanine aggregates in solution and displays lower quantum yields ∼0.1 in organic solvents.Figure optionsDownload as PowerPoint slide

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Organometallic Chemistry - Volume 694, Issue 11, 1 May 2009, Pages 1607–1611
نویسندگان
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