Synthesis, characterization and crystal structures of neutral mono- and di-nuclear lanthanide(III) porphyrinate complexes
Abstract
The interaction of 5,10,15,20-tetrakis(p-tolyl)porphyrin (H2TTP) and 5,10,15,20-tetraphenylporphyrin (H2TPP) with an excess of YIII[N(SiMe3)2]3·x[LiCl(THF)]3, generated in situ, in refluxing bis(2-methoxyethyl) ether gave the neutral monoporphyrinate complexes [YIII(TTP)(Cl){(CH3OCH2CH2)2O}] 1 and [YIII(TPP)(Cl)(H2O)(THF)] 2, respectively. However, the interaction of 5,10,15,20-tetrakis(p-methoxyphenyl)porphyrin (H2TMPP), H2TTP and H2TPP with an excess of YbIII(NPh2)3·x[LiCl(THF)3], generated in situ, in refluxing bis(2-methoxyethyl) ether gave the neutral hydroxide-bridged dinuclear porphyrinate complexes [{YbIII(TMPP)(µ-OH)}2] 3 and [{YbIII(TTP)}2(µ-OH)(µ-OCH2CH2OCH3)] 4, and the neutral monoporphyrinate complex [YbIII(TPP)(Cl)(H2O)(THF)] 5, respectively. The structures of these five complexes have been established by X-ray crystallography.