Site specificity of metal ions in heterodinuclear complexes derived from an "end-off" compartmental ligand

Koji Abe, Kanako Matsufuji, Masaaki Ohba, Hisashi Okawa

Research output: Contribution to journalArticle

32 Citations (Scopus)

Abstract

A phenol-based "end-off" compartmental ligand, 2-{N-[2-(dimethylamino)ethyl]iminomethyl}-6-[N,N-di(2-pyridylmethyl) -aminomethyl]-4-methylphenol (HL), having a bidentate arm and a tridentate arm attached to the 2 and 6 positions of the phenolic ring, has afforded the following heterodinuclear MaIIMbII complexes: [CuM(L)(AcO)2]CIO4 (M = Mn (1), Fe (2), Co (3), Ni (4), Zn (5)), [ZnM(L)(AcO)2]CIO4 (M = Co (6), Ni (7)), and [CuNi(L)(AcO)(NCS)2] (8). 1·MeOH (1′), 2·MeOH (2′), 3·MeOH (3′), 4·MeOH (4′), 5·MeOH (5′), and 7·MeOH (7′) are isostructural and have a heterodinuclear core bridged by the phenolic oxygen atom of L- and two acetate groups. In 1′-5′ the CuII is bound to the bidentate arm and has a square-pyramidal geometry with one acetate oxygen at the apical site. The MII is bound to the tridentate arm and has a six-coordinate geometry together with two acetate oxygen atoms. In the case of 7′ the Zn is bound to the bidentate arm and the Ni is bound to the tridentate arm. 8·2-PrOH (8′) has a dinuclear core bridged by the phenolic oxygen atom of L- and one acetate group. The Cu bound to the bidentate arm has a square-pyramidal geometry with an isothiocyanate group at the apical site. The Ni bound to the tridentate arm has a six-coordinate geometry with further coordination of an isothiocyanate group. The site specificity of the metal ions is discussed together with the crystal structure of [Cu4(L)2(AcO)3] (CIO4)3·H2O (9) prepared in this work.

Original languageEnglish
Pages (from-to)4461-4467
Number of pages7
JournalInorganic chemistry
Volume41
Issue number17
DOIs
Publication statusPublished - Aug 26 2002

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Metal ions
acetates
metal ions
Acetates
Oxygen
Ligands
oxygen atoms
ligands
Geometry
geometry
Atoms
Phenol
phenols
Crystal structure
crystal structure
rings
oxygen
isothiocyanic acid

All Science Journal Classification (ASJC) codes

  • Physical and Theoretical Chemistry
  • Inorganic Chemistry

Cite this

Site specificity of metal ions in heterodinuclear complexes derived from an "end-off" compartmental ligand. / Abe, Koji; Matsufuji, Kanako; Ohba, Masaaki; Okawa, Hisashi.

In: Inorganic chemistry, Vol. 41, No. 17, 26.08.2002, p. 4461-4467.

Research output: Contribution to journalArticle

Abe, Koji ; Matsufuji, Kanako ; Ohba, Masaaki ; Okawa, Hisashi. / Site specificity of metal ions in heterodinuclear complexes derived from an "end-off" compartmental ligand. In: Inorganic chemistry. 2002 ; Vol. 41, No. 17. pp. 4461-4467.
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abstract = "A phenol-based {"}end-off{"} compartmental ligand, 2-{N-[2-(dimethylamino)ethyl]iminomethyl}-6-[N,N-di(2-pyridylmethyl) -aminomethyl]-4-methylphenol (HL), having a bidentate arm and a tridentate arm attached to the 2 and 6 positions of the phenolic ring, has afforded the following heterodinuclear MaIIMbII complexes: [CuM(L)(AcO)2]CIO4 (M = Mn (1), Fe (2), Co (3), Ni (4), Zn (5)), [ZnM(L)(AcO)2]CIO4 (M = Co (6), Ni (7)), and [CuNi(L)(AcO)(NCS)2] (8). 1·MeOH (1′), 2·MeOH (2′), 3·MeOH (3′), 4·MeOH (4′), 5·MeOH (5′), and 7·MeOH (7′) are isostructural and have a heterodinuclear core bridged by the phenolic oxygen atom of L- and two acetate groups. In 1′-5′ the CuII is bound to the bidentate arm and has a square-pyramidal geometry with one acetate oxygen at the apical site. The MII is bound to the tridentate arm and has a six-coordinate geometry together with two acetate oxygen atoms. In the case of 7′ the Zn is bound to the bidentate arm and the Ni is bound to the tridentate arm. 8·2-PrOH (8′) has a dinuclear core bridged by the phenolic oxygen atom of L- and one acetate group. The Cu bound to the bidentate arm has a square-pyramidal geometry with an isothiocyanate group at the apical site. The Ni bound to the tridentate arm has a six-coordinate geometry with further coordination of an isothiocyanate group. The site specificity of the metal ions is discussed together with the crystal structure of [Cu4(L)2(AcO)3] (CIO4)3·H2O (9) prepared in this work.",
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T1 - Site specificity of metal ions in heterodinuclear complexes derived from an "end-off" compartmental ligand

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N2 - A phenol-based "end-off" compartmental ligand, 2-{N-[2-(dimethylamino)ethyl]iminomethyl}-6-[N,N-di(2-pyridylmethyl) -aminomethyl]-4-methylphenol (HL), having a bidentate arm and a tridentate arm attached to the 2 and 6 positions of the phenolic ring, has afforded the following heterodinuclear MaIIMbII complexes: [CuM(L)(AcO)2]CIO4 (M = Mn (1), Fe (2), Co (3), Ni (4), Zn (5)), [ZnM(L)(AcO)2]CIO4 (M = Co (6), Ni (7)), and [CuNi(L)(AcO)(NCS)2] (8). 1·MeOH (1′), 2·MeOH (2′), 3·MeOH (3′), 4·MeOH (4′), 5·MeOH (5′), and 7·MeOH (7′) are isostructural and have a heterodinuclear core bridged by the phenolic oxygen atom of L- and two acetate groups. In 1′-5′ the CuII is bound to the bidentate arm and has a square-pyramidal geometry with one acetate oxygen at the apical site. The MII is bound to the tridentate arm and has a six-coordinate geometry together with two acetate oxygen atoms. In the case of 7′ the Zn is bound to the bidentate arm and the Ni is bound to the tridentate arm. 8·2-PrOH (8′) has a dinuclear core bridged by the phenolic oxygen atom of L- and one acetate group. The Cu bound to the bidentate arm has a square-pyramidal geometry with an isothiocyanate group at the apical site. The Ni bound to the tridentate arm has a six-coordinate geometry with further coordination of an isothiocyanate group. The site specificity of the metal ions is discussed together with the crystal structure of [Cu4(L)2(AcO)3] (CIO4)3·H2O (9) prepared in this work.

AB - A phenol-based "end-off" compartmental ligand, 2-{N-[2-(dimethylamino)ethyl]iminomethyl}-6-[N,N-di(2-pyridylmethyl) -aminomethyl]-4-methylphenol (HL), having a bidentate arm and a tridentate arm attached to the 2 and 6 positions of the phenolic ring, has afforded the following heterodinuclear MaIIMbII complexes: [CuM(L)(AcO)2]CIO4 (M = Mn (1), Fe (2), Co (3), Ni (4), Zn (5)), [ZnM(L)(AcO)2]CIO4 (M = Co (6), Ni (7)), and [CuNi(L)(AcO)(NCS)2] (8). 1·MeOH (1′), 2·MeOH (2′), 3·MeOH (3′), 4·MeOH (4′), 5·MeOH (5′), and 7·MeOH (7′) are isostructural and have a heterodinuclear core bridged by the phenolic oxygen atom of L- and two acetate groups. In 1′-5′ the CuII is bound to the bidentate arm and has a square-pyramidal geometry with one acetate oxygen at the apical site. The MII is bound to the tridentate arm and has a six-coordinate geometry together with two acetate oxygen atoms. In the case of 7′ the Zn is bound to the bidentate arm and the Ni is bound to the tridentate arm. 8·2-PrOH (8′) has a dinuclear core bridged by the phenolic oxygen atom of L- and one acetate group. The Cu bound to the bidentate arm has a square-pyramidal geometry with an isothiocyanate group at the apical site. The Ni bound to the tridentate arm has a six-coordinate geometry with further coordination of an isothiocyanate group. The site specificity of the metal ions is discussed together with the crystal structure of [Cu4(L)2(AcO)3] (CIO4)3·H2O (9) prepared in this work.

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