Exploring structure-property relationships of silver 4-(Phenylethynyl)pyridine complexes

Jane V. Knichal, William J. Gee, Christopher A. Cameron, Jonathan M. Skelton, Kevin J. Gagnon, S. J. Teat, Chick C. Wilson, Paul R. Raithby, Andrew D. Burrows

    Research output: Contribution to journalArticlepeer-review

    Abstract

    Silver(salts demonstrate a strong preference for forming linear complexes when reacted with 4-(phenylethynyl)-pyridine (pep). The packing of these complexes was found to be strongly influenced by the counteranions, namely PF6-,BF4-, NO2-, NO3-, MeCO2-, CF3CO2-, MeSO3-, Tos-and SCN-. This study evaluates a family of twelve solid-state structures that exhibit varying metal-to-ligand ratios, [Ag(pep)2][PF6]· MeCN, [Ag(pep)2][PF6], [Ag(pep)2][BF4], [Ag(pep)2][Ag(NO2)2], [Ag(pep)2][NO3]·2H2O, [Ag(pep)2][Ag(NO3)2], [Ag(pep)2(MeCO2)]· 3H2O, [Ag(pep)2][CF3CO2],[Ag(pep)2][CF3SO3], 2{[Ag(pep)2]-[Tos]}·pep and [Ag(pep)(SCN)]. This family has enabled general trends and noteworthy packing-induced structure-property relationships to be elucidated. Highlights include two instances of single-crystal-to-single-crystal transformations, one of which occurs with a colour change. This change in crystal colour has been further explored using first-principles computational modelling.

    Original languageEnglish
    Pages (from-to)1855-1867
    Number of pages13
    JournalEuropean Journal of Inorganic Chemistry
    Volume2017
    Issue number13
    Early online date3 Apr 2017
    DOIs
    Publication statusPublished - 3 Apr 2017

    Keywords

    • Coordination modes
    • Crystal engineering
    • Silver
    • Singlecrystal-to-single-crystal transformations
    • Structure-property relationships

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