Extended Open‐Chain Polyenides as Versatile Delocalized Anion Ligands for Metal Chain Clusters
Extended Open‐Chain Polyenides as Versatile Delocalized Anion Ligands for Metal Chain Clusters
复制标题
延长开链聚烯化合物作为金属链簇的多功能离域阴离子配体
DOI：
10.1002/chem.201805800
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发表时间：
2018
期刊：
影响因子：
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通讯作者：
Murahashi Tetsuro
中科院分区：
文献类型：
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作者：
Yamashita Mitsuki;Kawasumi Yuna;Tachibana Yuki;Horiuchi Shinnosuke;Yamamoto Koji;Murahashi Tetsuro
虽然小的环状和开链不饱和烃阴离子如环戊二烯和开链戊二烯被用作金属配合物的强供电子辅助配体，但更广泛的π共轭不饱和烃阴离子很少用于配位化学，尽管它们具有作为金属簇的多桥π配体的潜在能力。这项工作报告了带有多齿、开链扩展的不饱和烃阴离子配体的金属链簇的分离。扩展的开链π共轭多烯基配体可以有效地稳定氧化的钯链，包括前所未有的[Pd4]4+链。
Although small cyclic‐ and open‐chain unsaturated hydrocarbon anions such as cyclopentadienide and open‐chain pentadienide are used as the strongly electron‐donating auxiliary ligands for metal complexes, more extended π‐conjugated unsaturated hydrocarbon anions have rarely been used in coordination chemistry, despite their potential ability to serve as the multiply bridging π‐ligands for metal clusters. This work reports isolation of metal chain clusters bearing the multi‐dentate, open‐chain extended unsaturated hydrocarbon anion ligands. The extended open‐chain π‐conjugated polyenyl ligands could effectively stabilize oxidized palladium chains, including an unprecedented [Pd4]4+chain.