Coordination Diversity of Aluminum Centers Molded by Triazole Based Chalcogen Ligands

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• 作者：Jocelyn Alcntara-Garca ; Vojtech Jancik ; Joaqun Barroso ; Sandra Hidalgo-Bonilla ; Raymundo Cea-Olivares ; Rubn A. Toscano ; Mnica Moya-Cabrera
• 刊名：Inorganic Chemistry
• 出版年：2009
• 出版时间：July 6, 2009
• 年：2009
• 卷：48
• 期：13
• 页码：5874-5883
• 全文大小：968K
• 年卷期：v.48,no.13(July 6, 2009)
• ISSN：1520-510X

文摘

Equimolar and excess ratio reactions of AlMe₃ and AlⁱBu₃ with the ligands 4,5-(P(E)Ph₂)₂tzH (tz = 1,2,3-triazole; E = O (1), S (2), Se(3)) were performed, showing a vast variety of coordination modes. The products obtained, [AlR₂{κ²-O,O′-[4,5-(P(O)Ph₂)₂tz]}] (R = Me (4), ⁱBu (5)), [AlR₂{κ³-N,N′,S-[4,5-(P(S)Ph₂)₂tz]}(μ-tz)]₂ (R = Me (6), R = ⁱBu (7)), [AlMe₂{κ²-N,Se-[4,5-(P(Se)Ph₂)₂tz]}] (8), [Al{κ²-N,Se-[4,5-(P(Se)Ph₂)₂tz]}₃] (9), [AlR₂{κ²-O,O′-[4,5-(P(O)Ph₂)₂tz]}-(N′-AlR₃)] (R = Me (10), ⁱBu (11)), and [AlR₂{κ²-N,S-[4,5-(P(S)Ph₂)₂tz]}-(N′-AlR₃)] (R = Me (12), R = ⁱBu (13)), were characterized by spectroscopic methods, and the structures of 1, 4, 6, 7, 9, 10, and 12 were obtained through X-ray diffraction studies. Theoretical calculations were performed on the deprotonated ligands and on selected compounds to obtain information regarding the coordination variety observed for these compounds.