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

*Corresponding author for this work

    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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