Platinum Complexes of 5,6‐Dihydroacenaphtho[5,6‐
<i>cd</i>
]‐1,2‐dichalcogenoles
作者:Callum G. M. Benson、Catherine M. Schofield、Rebecca A. M. Randall、Lucy Wakefield、Fergus R. Knight、Alexandra M. Z. Slawin、J. Derek Woollins
DOI:10.1002/ejic.201200967
日期:2013.1.15
Six bis(phosphane)platinum complexes bearing dichalcogen acenaphthene ligands have been prepared by metathesis from cis-[PtCl2(PR3)2] (R3 = Ph3, Ph2Me, PhMe2) and the dilithium salts of the parent 5,6-dihydroacenaphtho[5,6-cd]-1,2-dichalcogenoles (AcenapE2, L1 E = S, L2 E = Se). For their synthesis, the appropriate disulfide or diselenide species was treated with super hydride [LiBEt3H] to afford the
通过顺式-[PtCl2(PR3)2] (R3 = Ph3, Ph2Me, PhMe2) 和母体 5,6-二氢苊[5, 6-cd]-1,2-二硫属元素(AcenapE2,L1 E = S,L2 E = Se)。对于它们的合成,合适的二硫化物或二硒化物用超氢化物 [LiBEt3H] 处理,通过原位还原 AcenapE2 E-E 键得到二锂盐。进一步反应,通过对顺铂前体的复分解加成得到相应的铂 (II) 配合物 [Pt(5,6-AcenapE2)(PR3)2] (R3 = Ph3: E = S 1, Se 2; R3 = Ph2Me : E = S 3, Se 4; R3 = PhMe2: E = S 5, Se 6)。主要通过多核磁共振光谱、红外光谱和 MS 对所有六个配合物进行了充分表征。硒配合物 4 和 6 提供了 AA'X 自旋系统的例子,如它们的 31P1H} NMR 谱所示。确定了