Synthesis of two copper clusters and their catalysis towards the oxidation of benzene into phenol
作者:XiuLi You、ZhenHong Wei、HaiLong Wang、DongPing Li、Jian Liu、BeiBei Xu、Xiaoming Liu
DOI:10.1039/c4ra12832j
日期:——
respectively, where H2LI is 2,2′-(((pyridine-2,6-diylbis(methylene))bis((pyridin-2-ylmethyl)azanediyl))bis(methylene))diphenol and H2LII 2,2′-((((5-methyl-1,3-phenylene)bis(methylene))bis((pyridin-2-ylmethyl)azane-diyl))bis(methylene))bis(4-methylphenol). The structures of both clusters in their solid states have been determined by X-ray crystallography. Their magnetic susceptibilities reveal that
在甲醇中,七齿配体(H 2 L I)和六齿配体(H 2 L II)与三当量的Cu(ClO 4)2 ·6H 2 O在甲醇中反应,得到六核簇[Cu 6(L I)2(OH)4 ](ClO 4)4 ·2DMF·3Et 2 O(1)和非核簇[[Cu 9(L II)3(OH)7)](ClO 4)5 ·0.25CH 3 OH·1.15H 2 O( 2),其中H 2 L I为2,2'-((((吡啶-2,6-二基双(亚甲基)))双((吡啶-2-基甲基)氮杂二基))双(亚甲基))二酚和H 2 L II2,2'-(((((5-甲基-1,3-亚苯基)双(亚甲基))双((吡啶-2-基甲基)氮杂-二基))双(亚甲基))双(4-甲基苯酚)。通过X射线晶体学确定了处于固态的两个簇的结构。它们的磁化率表明,由于簇中铜中心之间的耦合,两个簇都是反铁磁性的。NMR光谱分析,电导率测量和ESI-MS分析表明,簇在溶液中保留了其结