کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
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1337506 | 1500253 | 2015 | 5 صفحه PDF | دانلود رایگان |
A new family of wire-like molecules with butadiyndiyl (1a/b), hexadiyndiyl (2) and phenylenediethynyl (3) bridges linking three diruthenium units have been prepared. The single crystal X-ray diffraction study of 1a revealed structural details of the trimeric compounds, including a distance of 18 Å between two Ru2 termini. Both the voltammetric and spectroscopic data point to an extensive electronic delocalization in trimers 1 and 2, and the lack of delocalization in 3, demonstrating the advantage of linear polyyndiyl in mediating intermetallic electronic couplings. Magnetic studies of compound 1a reveal that a spin transition may occur as the temperature increases from 1.8 to 300 K.
Successful modulation of electronic coupling within [Ru2]–linker–[Ru2]–linker–[Ru2] systems with linkers as butadiyn-diyl, hexadiyn-diyl and phenylenediethynyl.Figure optionsDownload as PowerPoint slide
Journal: Polyhedron - Volume 86, 28 January 2015, Pages 76–80