Crystal engineering of lattice metrics of perhalometallate salts and MOFs

Christopher J. Adams, Mairi F. Haddow, Matteo Lusi, A. Guy Orpen

Research output: Contribution to journalArticle (Academic Journal)peer-review

60 Citations (Scopus)

Abstract

The synthesis of the salt [4,4'-H(2)bipy] [CoBr4] 3 and metallo-organic framework (MOF) [{(4,4'-bipy)CoBr2}(n)] 4 by a range of solid state (mechanochemical and thermochemical) and solution methods is reported; they are isostructural with their respective chloride analogues 1 and 2. 3 and 4 can be interconverted by means of HBr elimination and absorption. Single phases of controlled composition and general formula [4,4'-H(2)bipy] [CoBr4-xClx] 5(x) may be prepared from 2 and 4 by solid-gas reactions involving HBr or HCl respectively. Crystalline single phase samples of 5x and [{(4,4'-bipy)CoBr(2-x)Clx}(n)] 6(x) were prepared by solid-state mechanochemical routes, allowing fine control over the composition and unit cell volume of the product. Collectively these methods enable continuous variation of the unit cell dimensions of the salts [4,4'-H(2)bipy] [CoBr4-xClx] (5x) and the MOFs [{(4,4'-bipy)CoBr2-xClx}(n)] (6x) by varying the bromide to chloride ratio and establish a means of controlling MOF composition and the lattice metrics, and so the physical and chemical properties that derive from it.

Translated title of the contributionCrystal engineering of lattice metrics of perhalometallate salts and MOFs
Original languageEnglish
Pages (from-to)16033-16038
Number of pages6
JournalProceedings of the National Academy of Sciences of the United States of America
Volume107
Issue number37
DOIs
Publication statusPublished - 14 Sep 2010

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