Synthesis and solid state characterisation of mononuclear 2-benzoylpyridine N-methyl-N-phenylhydrazone palladium(ii) complexes
作者:Mauro Ghedini、Iolinda Aiello、Alessandra Crispini、Massimo La Deda
DOI:10.1039/b316843c
日期:——
characterized by the presence of the N(py)^N(im) chelate ring. When HL reacts with [Pd3(OAc)6] this gives rise to the orthometallated complex [LPd(OAc)], 2. In this case the Pd(II) environment consists of a N(py)^N(im) ring fused to the N(im)^C palladacycle and a monodentate acetate anion. Complex 2 undergoes methatetical reactions with alkaline halides and complexes of general formula [LPdX] (3: X = Cl;
2-苯并吡啶吡啶N-甲基-N-苯基hydr,HL,是一种多用途配体其与[Pd(PhCN)2 Cl 2 ]反应形成配位化合物[HLPdCl 2 ] 1,其特征在于存在N(py)^ N(im)螯合环。当HL与[Pd 3(OAc)6 ]反应时,会生成正金属化的配合物[LPd(OAc)] 2。在这种情况下,Pd(II)环境由与N(im)^ C钯环稠合的N(py)^ N(im)环和单齿乙酸盐阴离子组成。配合物2与碱性卤化物和通式为[LPdX]的配合物(3:X = Cl; 4:X = Br; 5:X = I)。由单晶确定的3-5分子结构X射线分析证明了在所有情况下都含有N(py)^ N(im)^ C齿状单核Pd(II)配合物的形成配体。作为固体样品仅化合物3-5在室温下呈现发光(λ最大 ≈610纳米)。这种性质在Pd(II)络合物中非常不寻常,是根据π-π相互作用进行讨论的,这主要是造成二聚体晶体固态的存在。