Selective synthesis and structural conversion of Di- and octa-nuclear Mn(II), Co(II), and Zn(II) Complexes

Tatsuo Togo, Yasuhiro Tsuji, Akio Mishima, Tomomi Koshiyama, Masaaki Ohba

Research output: Contribution to journalArticle

Abstract

The linear multidentate-type ligand 2,6-di(acetoacetyl)pyr-idine (H2L) selectively gave di- and octa-nuclear complexes, [M2(HL)2(NO3)2(H2O)2] (M2(HL)2) and [M8(L)63-O)2] (M8L6), with metal ions (MII = Mn, Co, Zn) by adjusting pH. M2(HL)2 formed an enolate-bridged dinuclear structure, in which metal ions were in hepta-coordinated pentagonal-bipyramid geometry. The structure of M8L6 consisted of two tetranuclear components including mononuclear [MnL3]41 and trinuclear [Mn(μ3-O)]4+ units, and the tetrads were interdigitated by enolate-bridges. In methanolic solution, M2(HL)2 was irreversibly transformed to M8L6 with liberation extra L21 by the addition of base.

Original languageEnglish
Pages (from-to)647-649
Number of pages3
JournalChemistry Letters
Volume47
Issue number5
DOIs
Publication statusPublished - Jan 1 2018

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Metal ions
Ligands
Geometry

All Science Journal Classification (ASJC) codes

  • Chemistry(all)

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Selective synthesis and structural conversion of Di- and octa-nuclear Mn(II), Co(II), and Zn(II) Complexes. / Togo, Tatsuo; Tsuji, Yasuhiro; Mishima, Akio; Koshiyama, Tomomi; Ohba, Masaaki.

In: Chemistry Letters, Vol. 47, No. 5, 01.01.2018, p. 647-649.

Research output: Contribution to journalArticle

Togo, Tatsuo ; Tsuji, Yasuhiro ; Mishima, Akio ; Koshiyama, Tomomi ; Ohba, Masaaki. / Selective synthesis and structural conversion of Di- and octa-nuclear Mn(II), Co(II), and Zn(II) Complexes. In: Chemistry Letters. 2018 ; Vol. 47, No. 5. pp. 647-649.
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AU - Koshiyama, Tomomi

AU - Ohba, Masaaki

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AB - The linear multidentate-type ligand 2,6-di(acetoacetyl)pyr-idine (H2L) selectively gave di- and octa-nuclear complexes, [M2(HL)2(NO3)2(H2O)2] (M2(HL)2) and [M8(L)6(μ3-O)2] (M8L6), with metal ions (MII = Mn, Co, Zn) by adjusting pH. M2(HL)2 formed an enolate-bridged dinuclear structure, in which metal ions were in hepta-coordinated pentagonal-bipyramid geometry. The structure of M8L6 consisted of two tetranuclear components including mononuclear [MnL3]41 and trinuclear [Mn(μ3-O)]4+ units, and the tetrads were interdigitated by enolate-bridges. In methanolic solution, M2(HL)2 was irreversibly transformed to M8L6 with liberation extra L21 by the addition of base.

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