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首页> 外文期刊>Dalton transactions: An international journal of inorganic chemistry >Dinucleating Schiff base ligand in Zn/ 4f coordination chemistry: synthetic challenges and catalytic activity evaluation
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Dinucleating Schiff base ligand in Zn/ 4f coordination chemistry: synthetic challenges and catalytic activity evaluation

机译:ZN / 4F协调化学中的Dinuclating Schiff基底配体:综合挑战和催化活动评价

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摘要

Four Zn/4f polynuclear coordination clusters (PCCs) formulated as [ZnII2DyIII2L(2)(CO3)(2)(NO3)(2)] (1), [(ZnYL)-Y-II-L-III(NO3)(2)(o-van) (MeOH)] (MeOH) [2 (MeOH)] and [Zn(II)Ln(III)L(NO3)(2)Cl(EtOH)] where Ln is Dy (3) and Y (4) and where H2L is the dinucleating Schiff base ligand N,N-bis(3-methoxysalicylidene)cyclohexane-1,2-diamine and o-van is ortho-vanillin, were prepared and fully characterised for the first time. These air-stable heterometallic PCCs, obtained in high yields from commercially available materials, were shown to remain stable in solution in their dinuclear [Zn(II)Ln(III)L] form. Their catalytic activity was evaluated in various catalytic transformations including the Friedel-Crafts alkylation of 2-acyl imidazoles with indoles.
机译:配制为[ZnII2dyii2L(2)(CO 3)(2)(2)(2)(2)(2)(2))(1),[(Znyl)-Y-II-L-III(NO 3)(NO 3)(1N3)( 2)(O-VAN)(MeOH)(MeOH)](MeOH)[2(MeOH)]和[Zn(II)LN(III)L(NO 3)(2)Cl(EtOH)],其中LN为Dy(3)和 Y(4)和H 2L是Dinucleating Schiff基碱配体N,制备N-双(3-甲氧基钠)环己烷-1,2-二胺和O-VAN是邻苯甲酸甲蛋白的,并首次表征。 这些空气稳定的异统计量PCC,从市售材料中获得的高产率获得,在其二核[Zn(III)LN(III)L]形式中溶液保持稳定。 在各种催化转化中评估其催化活性,包括带有吲哚的2-酰基咪唑的Friedel-Crafts烷基化。

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