Tokyo Institute of Technology · 材料科学
Munetaka Akita教授の研究室は、有機金属化学と無機化学の融合を軸に、金属を含むπ共有性炭素骨格（特にアルキン・ポリアルキン系）の構造・反応性を精密に制御する研究を展開しています。特に、フェロセン誘導体を基盤とするFe-アルキン錯体や、Rh-ジエン錯体を用いた新しい金属配位子系の設計が特徴で、分子エレクトロニクスやスマート材料応用に向けた基盤技術の構築を目指しています。また、光応答性金属錯体や触媒的ジマー化反応の開発を通じて、機能性分子の創出とその応用可能性の解明にも貢献しています。
Figures are computed from collected data and may differ slightly.
Rhodium−diene complexes with the TpiPr ligand, TpiPrRh(diene) (TpiPr = hydridotris(3,5-diisopropylpyrazolyl)borate; diene = 1,5-cyclooctadiene (cod) (1), norbornadiene (nbd) (2)), are prepared by treatment of [Rh(μ-Cl)(diene)]2 with KTpiPr or TlTpiPr. The structure of 1, characterized by X-ray crystallography, contains the κ2-coordinated TpiPr ligand, and its central Rh atom adopts a square-planar geometry, whereas the unit cell of 2 contains two independent molecules: a square-planar structure
Abstract A series of 1-alkynes (RC≡CH where R=Et, n-Pr, n-Bu, n-C6H13, cyclohexyl, Ph, Me3Si, Me3SiCH2, and Me3SiOCH2) was found to dimerize regioselectively (>99%) to 2,4-disubstituted 1-buten-3-ynes in 92–99% yields by catalysis of (η5-C5Me5)2TiCl2/i-PrMgBr at 30 °C in 1–3 h. The catalyst system is also effective for the regioselective codimerization of various 1-alkynes with 1-ethynylcyclohexene or ethynylbenzene.
Polycarbon species with pi-conjugated systems interact with attached metal fragments to exhibit a variety of intriguing structural features and chemical properties. In this Perspective, following an introductory account of polycarbon cluster compounds and the unique chemical transformations on them which cannot easily be realized by mononuclear species, the properties of polynuclear complexes connected by pi-conjugated carbon-rich bridging ligands will be discussed with emphasis on those applica
Recent progress of photochromic metal complexes is summarized with emphasis on "photochromic organometallics" with a M−C(photochromic unit) bond. Stimuli-responsive systems including the photochromic system are essential components of smart chemical systems, where the system recognizes changes of the environment so as to trigger a chemical function required for the smart chemical system. Combination with metal components, which exhibit unique properties such as redox and photophysical properties
A series of polyynyl and polyynediyl complexes of iron, Fp*−(C⋮C)n−H [n = 2 (3)) and Fp*−(C⋮C)n−Fp* (n = 2 (4), 4 (5); Fp* = (η5-C5Me5)Fe(CO)2), have been prepared, and their linear structure has been confirmed by X-ray crystallography.
Abstract A variety of polymetallic C2 (C2 and C2H) complexes are prepared by structure expansion of parent metal acetylide complexes, Fp*–C≡C–H (1) and Fp*–C≡C–Fp* (2) [Fp* = (η5–C5Me5)Fe(CO)2], and their structure and reactivity have been investigated as models for surface-bound C2 species formed during catalytic CO hydrogenation. The results summarized here involve (1) intramolecular 1,2-H shift of the C2H complexes relevant to the 1-alkyne-to-vinylidene rearrangement within a metal coordinati
Open papers in the app to read, cite, and organize with AI.
