Asymmetric by Design: Heteroleptic Coordination Compounds with Redox-Active Dithiolene and 1,2,4,5-Tetrakis(isopropylthio)benzene Ligands
作者:Che Wu、Lakshmi Nishanth Kakarla、Chandru P. Chandrasekaran、Xiaodong Zhang、Joel T. Mague、Stephen Sproules、James P. Donahue
DOI:10.1021/acs.inorgchem.3c02928
日期:2024.1.8
metathesis between Na2[(N≡C)2C2S2] (Na2mnt) and [Cl2M(tptbz)] (M = Pd, 2; M = Pt, 3) yields [(mnt)M(tptbz)] (M = Pd, 5; M = Pt, 6), but an alternative route involving transmetalation with [(mnt)SnMe2] delivers substantially greater yield. The mixed dithiolene-dithioether compound [(Ph2C2S2)Pt(tptbz)] (8) is formed by a similar transmetalation protocol using [(Ph2C2S2)SnnBu2]. Compounds 5, 6, and 8 are the
1,2,4,5-四(烷硫基)苯是氧化还原活性有机硫分子,支持氧化成稳定的自由基阳离子。它们作为具有定制功能/性质的多金属配合物组装的配体的实用性尚未得到检验。这里,1,2,4,5-四(异丙硫基)苯(tptbz, 1 )显示在任一端结合PdCl 2 ,使另一端开放,或在两端形成中心对称的[Cl 2 Pd(tptbz) PdCl 2 ], 4 。 Na 2 [(N≡C) 2 C 2 S 2 ] (Na 2 mnt) 和 [Cl 2 M(tptbz)] (M = Pd, 2 ; M = Pt, 3 ) 之间的配体复分解产生 [(mnt)M (tptbz)] (M = Pd, 5 ; M = Pt, 6 ),但涉及用 [(mnt)SnMe 2 ] 进行金属转移的替代途径可提供显着更高的产率。混合二硫醇烯-二硫醚化合物[(Ph 2 C 2 S 2 )Pt(tptbz)] ( 8 )通过使用[(Ph 2