Molecular Activation on the Basis of the Palladium and Platinum Mixed Multninuclear Complexes

2015 Fiscal Year Final Research Report

• Project/Area Number: 25410061
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Inorganic chemistry
• Research Institution: Tokyo Institute of Technology
• Principal Investigator: Tanabe Makoto 東京工業大学, 資源化学研究所, 助教 (80376962)
• Project Period (FY): 2013-04-01 – 2016-03-31
• Keywords: 多核錯体 / ケイ素配位子 / パラジウム / 白金 / 平面共役 / プロトン化 / 反応場 / 可逆反応

Outline of Final Research Achievements

Two-dimensional multinuclear complexes are less common than other structurally regulated complexes such as one-dimensional complexes. Incorporation of electron-donating silylene and germylene ligands to the multimetallic complexes would confer unique chemical properties. This research reports modified preparation and chemical reactivity of tetranuclear palladium and platinum mixed complexes and their structural rearrangements of the Pd4Si3, PtPd3Si3, and Pd4Ge3 cores.
Preparation of the tetrapalladium complexes was modified by using silylene precursors, which was reported as aminosilylboronic ester. The direct reactions gave thermodynamically stable Pd4 complexes in good yields. The planar-shaped tetranuclear complexes with electron-donating silylene ligands exhibited unusual rearrangements of the cores by protonation. Especially, the protonation of the Pd4Ge3 core underwent reversible rearrangements to give the linear structure and the relative mechanism was also considered.

Free Research Field

有機金属化学