Organopnictogen 阳离子显示出作为强大的、可调的主族路易斯酸催化剂的前景。一系列弱配位三芳基氯锑盐[Ar 3 SbCl][B(C 6 F 5 ) 4 ] (Ar = Ph, 3-FC 6 H 4 , 4-FC 6 H 4 , 3,5-F 2 C 6 H 3 , 2,4,6-F 3 C 6 H 2) 报道。每个中的阳离子采用锑的四面体配位环境,与阴离子几乎完全分离。结构、计算和反应性研究表明,[Ar 3 SbCl] +的路易斯酸度通常随着 Ar 取代基氟化的增加而增加,并具有对位氟化的二次猝灭效应。[Ar 3 SbCl] +在 Et 3 SiH存在的情况下被还原为 Ar 3 Sb ,并且该反应的机理已通过计算建模。初步研究表明,它们是 1,1-二苯基乙烯二聚和苯的 Friedel-Crafts 烷基化的有用催化剂。
Novel tetranuclear triarylantimony(v) complexes with (±)-mandelic acid ligands: synthesis, characterization, in vitro cytotoxicity and DNA binding properties
Anion Recognition with Antimony(III) and Bismuth(III) Triaryl‐Based Pnictogen Bonding Receptors
作者:Heike Kuhn、Andrew Docker、Paul D. Beer
DOI:10.1002/chem.202201838
日期:2022.12
A series of Antimony(III) and Bismuth(III) pnictogen bonding (PnB) triaryl-based anion receptors demonstrate PnB anion binding strength is influenced strongly by the electronic withdrawing nature of the aryl substituent and pnictogen atom donor identity. The triaryl PnB receptors display chloride anion selectivity over a range of halides and oxoanions. The synthesis and preliminary chloride anion binding