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

doi:10.1246/cl.180085

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

Inorganic and Analytical Chemistry

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

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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)₆(μ₃-O)₂] (M₈L₆), with metal ions (M^II = 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 language	English
Pages (from-to)	647-649
Number of pages	3
Journal	Chemistry Letters
Volume	47
Issue number	5
DOIs	https://doi.org/10.1246/cl.180085
Publication status	Published - 2018

All Science Journal Classification (ASJC) codes

Chemistry(all)

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@article{2adff1143f4643a58e522069532da6e2,

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

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)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.",

author = "Tatsuo Togo and Yasuhiro Tsuji and Akio Mishima and Tomomi Koshiyama and Masaaki Ohba",

note = "Funding Information: This work was supported by JSPS KAKENHI Grant Number 16H06519 (Coordination Asymmetry) and 15H03787.",

year = "2018",

doi = "10.1246/cl.180085",

language = "English",

volume = "47",

pages = "647--649",

journal = "Chemistry Letters",

issn = "0366-7022",

publisher = "The Chemical Society of Japan",

number = "5",

}

TY - JOUR

T1 - Selective synthesis and structural conversion of Di- and octa-nuclear Mn(II), Co(II), and Zn(II) Complexes

AU - Togo, Tatsuo

AU - Tsuji, Yasuhiro

AU - Mishima, Akio

AU - Koshiyama, Tomomi

AU - Ohba, Masaaki

N1 - Funding Information: This work was supported by JSPS KAKENHI Grant Number 16H06519 (Coordination Asymmetry) and 15H03787.

PY - 2018

Y1 - 2018

N2 - 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.

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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U2 - 10.1246/cl.180085

DO - 10.1246/cl.180085

M3 - Article

AN - SCOPUS:85045513550

SN - 0366-7022

VL - 47

SP - 647

EP - 649

JO - Chemistry Letters

JF - Chemistry Letters

IS - 5

ER -

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

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