以Mo(O)Cl2(PPh2Me)3为模板合成平面大环四齿膦配体17-aneP4钼配合物

Synthesis of Mo Complex with Planar Macrocyclic Tetradentate Phosphine Ligand 17-aneP4 Using Mo(O)Cl2(PPh2Me)3 Template

中文关键词: 平面大环四齿膦配体  模板法  钼氧配合物

英文关键词: planar macrocyclic tetradentate phosphine ligand  template method  molybdenum-oxo complex

中文摘要:

      大环四齿膦配体通常以Ni(Ⅱ)、Pd(Ⅱ)、Pt(Ⅱ)或者Cu(Ⅰ)为模板合成，并且很难避免异构体的产生，而第六副族过渡金属只报道过用于三齿大环膦配体的合成. 本研究以四价钼为模板金属，在其上构筑了一种平面大环四膦配体. 首先设计并合成了一种具有两个含磷小环的开链四齿膦配体. 经过随后的配位和烷基化，得到含有大环四齿膦配体17-aneP4的钼氧配合物，没有立体异构体的产生

英文摘要:

      Macrocyclic tetradentate phosphine ligands are usually synthesized using Ni(II)，Pd(II)，Pt(II) or Cu(I) as templates, and it is difficult to avoid the generation of isomers during the synthesis of macrocyclic tetraphosphine ligands. The group-ⅥB transition metals have only been reported for the synthesis of tridentate macrocyclic phosphine ligands. The synthesis of macrocyclic tetradentate phosphine ligand is relatively undeveloped. Herein, a planar macrocyclic tetraphosphine ligand was constructed on a Mo(IV) template. An open-chain tetradentate phosphine ligand with two P-containing rings was designed and synthesized. After coordination and alkylation, a Mo-oxo complex featuring a cyclic tetradentate phosphine ligand 17-aneP4 was obtained without isomers.