A Molecular Triangle as a Precursor Toward the Assembly of a Jar-Shaped Metallasupramolecule

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• 作者：Shih-Ming Lin ; Murugesan Velayudham ; Chi-Hwe Tsai ; Che-Hao Chang ; Chung-Chou Lee ; Tzuoo-Tsair Luo ; Pounraj Thanasekaran ; Kuang-Lieh Lu
• 刊名：Organometallics
• 出版年：2014
• 出版时间：January 13, 2014
• 年：2014
• 卷：33
• 期：1
• 页码：40-44
• 全文大小：298K
• ISSN：1520-6041

文摘

The reaction of Re₂(CO)₁₀ and 1,1鈥?carbonyldiimidazole in toluene afforded the molecular triangle [Re₃(渭₂-Im)₃(CO)₁₂] (1; Im = imidazolate). This air-stable complex 1 acted as a precursor, which could then be further transformed into the complex [{Re(CO)₃}₃(渭₂-Im)₃(渭₃-L)] (2; L = 1,3,5-tris(benzimidazol-1-ylmethyl)-2,4,6-trimethylbenzene) upon reaction with the flexible ligand L under solvothermal conditions. Complex 2 can also be produced directly in a one-pot reaction from Re₂(CO)₁₀, 1,1鈥?carbonyldiimidazole, and the flexible ligand L. A single-crystal X-ray diffraction analysis showed that compound 1 has a triangular-shaped structure, which is the smallest rhenium triangle known, as of this writing. Complex 2 adopted a jar-shaped structure. The photophysical properties of complexes 1 and 2 were studied.