A ligand strand that displays anion-dependant reactivity with acetonitrile; formation of either a mononuclear complex or head-to-tail circular helicate

The ligand L 2,2 contains two bidentate domains separated by a 3,3-diamino-2,2′-biphenyl spacer unit and with Cu(ClO 4 ) 2 a mononuclear species is formed ( e.g. [Cu( L 2,2 )] 2+ ). Upon coordination with Cu(triflate) 2 the ligand undergoes reaction with an acetonitrile solvent, producing a differen...

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Published inDalton transactions : an international journal of inorganic chemistry Vol. 48; no. 23; pp. 8427 - 8432
Main Authors Clemett, Christopher J, Faulkner, Robert A, Rice, Craig R, Slater, Christopher, Wedge, Christopher J, Whitehead, Martina
Format Journal Article
LanguageEnglish
Published England Royal Society of Chemistry 21.06.2019
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Summary:The ligand L 2,2 contains two bidentate domains separated by a 3,3-diamino-2,2′-biphenyl spacer unit and with Cu(ClO 4 ) 2 a mononuclear species is formed ( e.g. [Cu( L 2,2 )] 2+ ). Upon coordination with Cu(triflate) 2 the ligand undergoes reaction with an acetonitrile solvent, producing a different ligand with unsymmetrical bidentate and tridentate domains ( L 2,3 ). This new ligand results in the formation of a tetranuclear head-to-tail circular helicate [Cu 4 ( L 2,3 ) 4 ] 8+ showing that in the presence of the triflate anion the ligand denticity is changed. The ligand L 2,2 contains two bidentate domains separated by a 3,3-diamino-2,2′-biphenyl spacer unit and with Cu(ClO 4 ) 2 a mononuclear species is formed ( e.g. [Cu( L 2,2 )] 2+ ).
Bibliography:Electronic supplementary information (ESI) available: Full synthetic and crystallographic details. CCDC
For ESI and crystallographic data in CIF or other electronic format see DOI
1574886-1574887
10.1039/c9dt01063g
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ISSN:1477-9226
1477-9234
1477-9234
DOI:10.1039/c9dt01063g