A new [NiII4] distorted cubane assembly on four solvent derived μ3-OMe corners: Solvent dependent formation and cleavage of exogenous bridges

Debashree Mandal; Chang Seop Hong; Hyoung Chan Kim; Hoong Kun Fun; Debashis Ray

doi:10.1016/j.poly.2008.04.023

A new [Ni^II₄] distorted cubane assembly on four solvent derived μ₃-OMe corners: Solvent dependent formation and cleavage of exogenous bridges

Debashree Mandal, Chang Seop Hong, Hyoung Chan Kim, Hoong Kun Fun, Debashis Ray

Department of Chemistry

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

24 Citations (Scopus)

Abstract

A new Ni₄ distorted cubane complex [Ni₄(μ₃-OMe)₄Q₄(MeOH)₄] (1) (where Q^- is the anion of 8-quinolinol) is obtained from the reaction of NaQ with Ni(OAc)₂ · 4H₂O in refluxing MeOH via solvent derived μ₃-OMe assisted self-assembly of four nickel(II) centres. The periphery of [Ni₄(OMe)₄] cubane is covered by four Q^- and four MeOH molecules. This methanol specific reaction is not supported in solvent glycinol (Hgl; NH₂(CH₂)₂OH), an amine substituted ethanol, producing monomeric [NiQ₂(Hgl)₂] · 2H₂O (2 · 2H₂O) instead and is able to cleave 1 to yield 2 · 2H₂O. The cryomagnetic susceptibility data of powdered 1 can be modeled by a two J equation yielding J₁ = -1.8(1) cm^-1, J₂ = 3.9(1) cm^-1 and g = 2.24.

Original language	English
Pages (from-to)	2372-2378
Number of pages	7
Journal	Polyhedron
Volume	27
Issue number	11
DOIs	https://doi.org/10.1016/j.poly.2008.04.023
Publication status	Published - 2008 Aug 4

Keywords

8-Quinolinolate
Bridge cleavage
Glycinol coordination
Tetranuclear
μ-Methanolate

ASJC Scopus subject areas

Physical and Theoretical Chemistry
Inorganic Chemistry
Materials Chemistry

Access to Document

10.1016/j.poly.2008.04.023

Cite this

@article{97a4dc21b44743ae9e973db43f09a49f,

title = "A new [NiII4] distorted cubane assembly on four solvent derived μ3-OMe corners: Solvent dependent formation and cleavage of exogenous bridges",

abstract = "A new Ni4 distorted cubane complex [Ni4(μ3-OMe)4Q4(MeOH)4] (1) (where Q- is the anion of 8-quinolinol) is obtained from the reaction of NaQ with Ni(OAc)2 · 4H2O in refluxing MeOH via solvent derived μ3-OMe assisted self-assembly of four nickel(II) centres. The periphery of [Ni4(OMe)4] cubane is covered by four Q- and four MeOH molecules. This methanol specific reaction is not supported in solvent glycinol (Hgl; NH2(CH2)2OH), an amine substituted ethanol, producing monomeric [NiQ2(Hgl)2] · 2H2O (2 · 2H2O) instead and is able to cleave 1 to yield 2 · 2H2O. The cryomagnetic susceptibility data of powdered 1 can be modeled by a two J equation yielding J1 = -1.8(1) cm-1, J2 = 3.9(1) cm-1 and g = 2.24.",

keywords = "8-Quinolinolate, Bridge cleavage, Glycinol coordination, Tetranuclear, μ-Methanolate",

author = "Debashree Mandal and Hong, {Chang Seop} and Kim, {Hyoung Chan} and Fun, {Hoong Kun} and Debashis Ray",

note = "Funding Information: D. M. acknowledges the Council of Scientific and Industrial Research, New Delhi, India for her research fellowship. C. S. H. acknowledges the financial support from the Korean Government (MOEHRD, Basic Research Promotion Fund) (KRF-2005-070-C00068). H.C.K. and H-K.F. acknowledge the financial supports from the Korean Government and the Government of Malaysia. ",

year = "2008",

month = aug,

day = "4",

doi = "10.1016/j.poly.2008.04.023",

language = "English",

volume = "27",

pages = "2372--2378",

journal = "Polyhedron",

issn = "0277-5387",

publisher = "Elsevier Limited",

number = "11",

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T1 - A new [NiII4] distorted cubane assembly on four solvent derived μ3-OMe corners

T2 - Solvent dependent formation and cleavage of exogenous bridges

AU - Mandal, Debashree

AU - Hong, Chang Seop

AU - Kim, Hyoung Chan

AU - Fun, Hoong Kun

AU - Ray, Debashis

N1 - Funding Information: D. M. acknowledges the Council of Scientific and Industrial Research, New Delhi, India for her research fellowship. C. S. H. acknowledges the financial support from the Korean Government (MOEHRD, Basic Research Promotion Fund) (KRF-2005-070-C00068). H.C.K. and H-K.F. acknowledge the financial supports from the Korean Government and the Government of Malaysia.

PY - 2008/8/4

Y1 - 2008/8/4

N2 - A new Ni4 distorted cubane complex [Ni4(μ3-OMe)4Q4(MeOH)4] (1) (where Q- is the anion of 8-quinolinol) is obtained from the reaction of NaQ with Ni(OAc)2 · 4H2O in refluxing MeOH via solvent derived μ3-OMe assisted self-assembly of four nickel(II) centres. The periphery of [Ni4(OMe)4] cubane is covered by four Q- and four MeOH molecules. This methanol specific reaction is not supported in solvent glycinol (Hgl; NH2(CH2)2OH), an amine substituted ethanol, producing monomeric [NiQ2(Hgl)2] · 2H2O (2 · 2H2O) instead and is able to cleave 1 to yield 2 · 2H2O. The cryomagnetic susceptibility data of powdered 1 can be modeled by a two J equation yielding J1 = -1.8(1) cm-1, J2 = 3.9(1) cm-1 and g = 2.24.

AB - A new Ni4 distorted cubane complex [Ni4(μ3-OMe)4Q4(MeOH)4] (1) (where Q- is the anion of 8-quinolinol) is obtained from the reaction of NaQ with Ni(OAc)2 · 4H2O in refluxing MeOH via solvent derived μ3-OMe assisted self-assembly of four nickel(II) centres. The periphery of [Ni4(OMe)4] cubane is covered by four Q- and four MeOH molecules. This methanol specific reaction is not supported in solvent glycinol (Hgl; NH2(CH2)2OH), an amine substituted ethanol, producing monomeric [NiQ2(Hgl)2] · 2H2O (2 · 2H2O) instead and is able to cleave 1 to yield 2 · 2H2O. The cryomagnetic susceptibility data of powdered 1 can be modeled by a two J equation yielding J1 = -1.8(1) cm-1, J2 = 3.9(1) cm-1 and g = 2.24.

KW - 8-Quinolinolate

KW - Bridge cleavage

KW - Glycinol coordination

KW - Tetranuclear

KW - μ-Methanolate

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U2 - 10.1016/j.poly.2008.04.023

DO - 10.1016/j.poly.2008.04.023

M3 - Article

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EP - 2378

JO - Polyhedron

JF - Polyhedron

IS - 11

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