A Homologous Series of [Fe(H2Bpz2)2(L)] Spin-Crossover Complexes with Annelated Bipyridyl Co-Ligands

Rafal Kulmaczewski, Helena J. Shepherd, Oscar Cespedes, Malcolm A. Halcrow

Research output: Contribution to journalArticle

25 Citations (Scopus)

Abstract

Four iron(II) complexes [Fe(H2Bpz2)2(L)] (pz = pyrazolyl; L = dppz, or another annelated bipyridyl chelate) crystallize in different molecular stacking motifs through interdigitation of the bipyridyl ligands, often with intercalated toluene or additional uncoordinated bipyridyl. Despite these strong intermolecular interactions the compounds exhibit rather gradual thermal spin-equilibria, because most of the structural rearrangement during spin-crossover occurs at the periphery of the stacks where the crystal packing is less dense.
Original languageEnglish
Pages (from-to)9809-9817
JournalInorganic Chemistry
Volume53
Issue number18
Early online date29 Aug 2014
DOIs
Publication statusPublished - 15 Sep 2014

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