Synthesis, structure and electrochemistry of heterometallic Ru(II) and Fe(II) butenynyl complexes

IF 2.4 3区化学 Q2 CHEMISTRY, INORGANIC & NUCLEAR

Polyhedron Pub Date : 2025-06-28 DOI:10.1016/j.poly.2025.117644

Li-bin Gao , Chun-peng Yang

引用次数: 0

Abstract

Three new η³-butenynyl complexes [BpyRu(η³-Ph-CCCCHPh)(dppf)] (O₃SCF₃) (1), [BpyRu(η³-^tBu-CCCCH^tBu)(dppf)] (O₃SCF₃) (2) and [BpyRu (η³-FcCCCCHFc)(dppf)] (O₃SCF₃) (3) were synthesized in moderate yields via reaction of Ru(bpy)(dppf)(O₃SCF₃)₂ (dppf = 1,1-Bis(diphenylphosphino)ferrocene) with phenylacetylene (PhCCH), ferrocenyl acetylene (FcCCH) and tert-Butyl-acetylene (^tBuCCH), respectively. Each compound features chelating phosphine ligands, bipyridine and butenynyl ligands η³-RCCCCHR (R = Ph, ^tBu and Fc) coordinated to ruthenium through carbon‑carbon coupling. Structural characterization by ¹H, ³¹P{¹H} NMR, ESI-MS, and X-ray structural analysis of the heterotetrametallic complex 3 confirmed the proposed structures. Electrochemical and UV–vis spectroscopic analyses further reveal the redox-active and light-absorbing properties of these systems.

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异质金属Ru（II）和Fe（II）丁烯基配合物的合成、结构和电化学

以Ru(bpy)(dppf)(O3SCF3)(2)和[BpyRu(η - 3- ph - cccchph)(dppf)] (O3SCF3) (2) [BpyRu(η - 3- tbu - cccchbu)(dppf)] (O3SCF3) (3) （dppf = 1,1-双（二苯基膦）二茂铁）为原料，分别与苯乙炔（PhCCH）、二茂铁乙炔（FcCCH）和叔丁基乙炔（tBuCCH）反应，以中等收率合成了三个新的η - 3-丁烯基配合物[BpyRu(η - 3- fccccchfc)(dppf)] （O3SCF3）。每个化合物都具有螯合膦配体，联吡啶和丁烯基配体η - 3- rcccchr （R = Ph， tBu和Fc）通过碳-碳偶联与钌配位。通过1H， 31P{1H} NMR， ESI-MS和x射线结构分析对杂四金属配合物3进行了结构表征，证实了所提出的结构。电化学和紫外可见光谱分析进一步揭示了这些体系的氧化还原活性和光吸收特性。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Polyhedron 化学-晶体学

CiteScore

4.90

自引率

7.70%

发文量

515

审稿时长

2 months

期刊介绍： Polyhedron publishes original, fundamental, experimental and theoretical work of the highest quality in all the major areas of inorganic chemistry. This includes synthetic chemistry, coordination chemistry, organometallic chemistry, bioinorganic chemistry, and solid-state and materials chemistry. Papers should be significant pieces of work, and all new compounds must be appropriately characterized. The inclusion of single-crystal X-ray structural data is strongly encouraged, but papers reporting only the X-ray structure determination of a single compound will usually not be considered. Papers on solid-state or materials chemistry will be expected to have a significant molecular chemistry component (such as the synthesis and characterization of the molecular precursors and/or a systematic study of the use of different precursors or reaction conditions) or demonstrate a cutting-edge application (for example inorganic materials for energy applications). Papers dealing only with stability constants are not considered.