Binuclear ruthenium macrocycles formed via the weak-link approach

Meisa S. Khoshbin; Maxim V. Ovchinnikov; Chad A. Mirkin; Lev H. Zakharov; Arnold L. Rheingold

doi:10.1021/ic048975y

Binuclear ruthenium macrocycles formed via the weak-link approach

Meisa S. Khoshbin, Maxim V. Ovchinnikov, Chad A. Mirkin^*, Lev H. Zakharov, Arnold L. Rheingold

^*Corresponding author for this work

Chemistry

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

29 Scopus citations

Abstract

The "weak-link approach" for the synthesis of metallomacrocycles has been used to synthesize a series of novel Ru(II) macrocycles in high yield. RuCl₂(PPh₃)₃ has been reacted with two different phosphino-alkyl-ether hemilabile ligands, 1,4-(PPh₂(CH ₂)₂O)₂C₆H₄ and 1,4-(PPh₂(CH₂)₂OCH₂) ₂C₆H₄. The hemilabile bidentate ligand coordinates to Ru(II) centers through both the P and O atoms to form bimetallic "condensed intermediates". The weak Ru-O bonds have been selectively cleaved with CO, 1,2-diaminopropane, and pyridine to yield large open macrocycles. This is the first example of the weak-link approach employed to synthesize macrocycles with Ru, and metal centers in general that have more than four coordination sites.

Original language	English (US)
Pages (from-to)	496-501
Number of pages	6
Journal	Inorganic chemistry
Volume	44
Issue number	3
DOIs	https://doi.org/10.1021/ic048975y
State	Published - Feb 7 2005

ASJC Scopus subject areas

Physical and Theoretical Chemistry
Inorganic Chemistry

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title = "Binuclear ruthenium macrocycles formed via the weak-link approach",

abstract = "The {"}weak-link approach{"} for the synthesis of metallomacrocycles has been used to synthesize a series of novel Ru(II) macrocycles in high yield. RuCl2(PPh3)3 has been reacted with two different phosphino-alkyl-ether hemilabile ligands, 1,4-(PPh2(CH 2)2O)2C6H4 and 1,4-(PPh2(CH2)2OCH2) 2C6H4. The hemilabile bidentate ligand coordinates to Ru(II) centers through both the P and O atoms to form bimetallic {"}condensed intermediates{"}. The weak Ru-O bonds have been selectively cleaved with CO, 1,2-diaminopropane, and pyridine to yield large open macrocycles. This is the first example of the weak-link approach employed to synthesize macrocycles with Ru, and metal centers in general that have more than four coordination sites.",

author = "Khoshbin, {Meisa S.} and Ovchinnikov, {Maxim V.} and Mirkin, {Chad A.} and Zakharov, {Lev H.} and Rheingold, {Arnold L.}",

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AU - Khoshbin, Meisa S.

AU - Ovchinnikov, Maxim V.

AU - Mirkin, Chad A.

AU - Zakharov, Lev H.

AU - Rheingold, Arnold L.

PY - 2005/2/7

Y1 - 2005/2/7

N2 - The "weak-link approach" for the synthesis of metallomacrocycles has been used to synthesize a series of novel Ru(II) macrocycles in high yield. RuCl2(PPh3)3 has been reacted with two different phosphino-alkyl-ether hemilabile ligands, 1,4-(PPh2(CH 2)2O)2C6H4 and 1,4-(PPh2(CH2)2OCH2) 2C6H4. The hemilabile bidentate ligand coordinates to Ru(II) centers through both the P and O atoms to form bimetallic "condensed intermediates". The weak Ru-O bonds have been selectively cleaved with CO, 1,2-diaminopropane, and pyridine to yield large open macrocycles. This is the first example of the weak-link approach employed to synthesize macrocycles with Ru, and metal centers in general that have more than four coordination sites.

AB - The "weak-link approach" for the synthesis of metallomacrocycles has been used to synthesize a series of novel Ru(II) macrocycles in high yield. RuCl2(PPh3)3 has been reacted with two different phosphino-alkyl-ether hemilabile ligands, 1,4-(PPh2(CH 2)2O)2C6H4 and 1,4-(PPh2(CH2)2OCH2) 2C6H4. The hemilabile bidentate ligand coordinates to Ru(II) centers through both the P and O atoms to form bimetallic "condensed intermediates". The weak Ru-O bonds have been selectively cleaved with CO, 1,2-diaminopropane, and pyridine to yield large open macrocycles. This is the first example of the weak-link approach employed to synthesize macrocycles with Ru, and metal centers in general that have more than four coordination sites.

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