Alternativ-Liganden, XXXVII. Phosphanliganden mit Bor als Lewis-acidem Zentrum: Synthese und Koordinationseigenschaften / Alternative Ligands, XXXVII. Phosphane Ligands with Boron as Lewis-acidic Centre: Synthesis and Coordinating Properties
作者:Joseph Grobe、Kai Lütke-Brochtrup、Bernt Krebs、Mechtild Läge、Hans-Hermann Niemeyer、Ernst-Ulrich Würthwein
DOI:10.1515/znb-2006-0717
日期:2006.7.1
with weak bonding interactions between the basic rhodium centre and the Lewisacidic Me2B group of the donor/acceptor ligand Me2PC(Me)=C(Me)BMe2 (1). For further investigations additional ligands with P-donor and B-acceptor centres, e. g. Ph2PC(Ph)=C(Ph)BPh2 (2), B(OCH2PMe2)3 (3), and B(CH2CH2PMe2)3 (4), have been prepared and the coordinating properties have been studied by reactions of 1 and 4 with [(π-C5Me5)Rh(CO)2]
再次制备了复合物 [Rh(CO)ClMe2PC(Me)=C(Me)BMe2}2] (5) 以证明其结构,在碱性铑中心和路易斯酸 Me2B 基团之间存在弱键相互作用。供体/受体配体 Me2PC(Me)=C(Me)BMe2 (1)。为了进一步研究具有 P 供体和 B 受体中心的其他配体,例如 Ph2PC(Ph)=C(Ph)BPh2 (2)、B(OCH2PMe2)3 (3) 和 B(CH2CH2PMe2)3 (4),具有已制备并通过 1 和 4 分别与 [(π-C5Me5)Rh(CO)2] 和 Pd(PPh3)4 的反应研究配位性质。因为产物的单晶[(π-C5Me5)Rh(CO)Me2PC(Me)=C(Me)BMe2] (6), [(π-C5Me5)Rh(CO)Me2PC(Me)=C(Me) )BMe2}2] (7) 以及 [PdB(CH2CH2PMe2)3}] (8) 或 [(Ph3P)PdB(CH2CH2PMe2)3}]