Preparation and properties of 1,2-diferrocenyl-substituted 3,4-diphosphinidenecyclobutenes and their complexes: The first application of a diphosphinidenecyclobutene unit as a linker of functional moieties

Subaru Kawasaki; Akitake Nakamura; Kozo Toyota; Masaaki Yoshifujith

doi:10.1021/om0500772

Preparation and properties of 1,2-diferrocenyl-substituted 3,4-diphosphinidenecyclobutenes and their complexes: The first application of a diphosphinidenecyclobutene unit as a linker of functional moieties

Subaru Kawasaki, Akitake Nakamura, Kozo Toyota, Masaaki Yoshifujith

SCI - Chemistry

Research output: Contribution to journal › Article › peer-review

12 Citations (Scopus)

Abstract

Compounds with two ferrocenyl units connected with 3,4- diphosphinidenecyclobutene (DPCB) linkers at the 1,2-positions (1) and their transition metal chelate complexes (2) were prepared, and the spectroscopic and electrochemical properties were studied. The compounds were examined by cyclic voltammetry, and ΔE_1/2 values (the separation between successive Fe²⁺/Fe³⁺ oxidation potentials) were determined. Being fully conjugated with DPCB linkers, those compounds demonstrated electrochemical communication: the Cr(CO)₄ complex of 1 (2Cr) showed a strong interaction (ΔE_1/2 = 350 mV), whereas PdCl₂ and PtCl₂ complexes of 1 (2Pd and 2Pt) displayed a decreased interaction compared to that of 1.

Original language	English
Pages (from-to)	2983-2987
Number of pages	5
Journal	Organometallics
Volume	24
Issue number	12
DOIs	https://doi.org/10.1021/om0500772
Publication status	Published - 2005 Jun 6

ASJC Scopus subject areas

Physical and Theoretical Chemistry
Organic Chemistry
Inorganic Chemistry

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Preparation and properties of 1,2-diferrocenyl-substituted 3,4-diphosphinidenecyclobutenes and their complexes : The first application of a diphosphinidenecyclobutene unit as a linker of functional moieties. / Kawasaki, Subaru; Nakamura, Akitake; Toyota, Kozo et al.

In: Organometallics, Vol. 24, No. 12, 06.06.2005, p. 2983-2987.

Research output: Contribution to journal › Article › peer-review

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abstract = "Compounds with two ferrocenyl units connected with 3,4- diphosphinidenecyclobutene (DPCB) linkers at the 1,2-positions (1) and their transition metal chelate complexes (2) were prepared, and the spectroscopic and electrochemical properties were studied. The compounds were examined by cyclic voltammetry, and ΔE1/2 values (the separation between successive Fe2+/Fe3+ oxidation potentials) were determined. Being fully conjugated with DPCB linkers, those compounds demonstrated electrochemical communication: the Cr(CO)4 complex of 1 (2Cr) showed a strong interaction (ΔE1/2 = 350 mV), whereas PdCl2 and PtCl2 complexes of 1 (2Pd and 2Pt) displayed a decreased interaction compared to that of 1.",

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AU - Kawasaki, Subaru

AU - Nakamura, Akitake

AU - Toyota, Kozo

AU - Yoshifujith, Masaaki

PY - 2005/6/6

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AB - Compounds with two ferrocenyl units connected with 3,4- diphosphinidenecyclobutene (DPCB) linkers at the 1,2-positions (1) and their transition metal chelate complexes (2) were prepared, and the spectroscopic and electrochemical properties were studied. The compounds were examined by cyclic voltammetry, and ΔE1/2 values (the separation between successive Fe2+/Fe3+ oxidation potentials) were determined. Being fully conjugated with DPCB linkers, those compounds demonstrated electrochemical communication: the Cr(CO)4 complex of 1 (2Cr) showed a strong interaction (ΔE1/2 = 350 mV), whereas PdCl2 and PtCl2 complexes of 1 (2Pd and 2Pt) displayed a decreased interaction compared to that of 1.

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Preparation and properties of 1,2-diferrocenyl-substituted 3,4-diphosphinidenecyclobutenes and their complexes: The first application of a diphosphinidenecyclobutene unit as a linker of functional moieties

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