Dimensionally Controlled Assembly of an External Stimuli-Responsive [Co2Fe2] Complex into Supramolecular Hydrogen-Bonded Networks

Yoshihiro Sekine, Masayuki Nihei, Hiroki Oshio

Research output: Contribution to journalArticlepeer-review

18 Citations (Scopus)

Abstract

A stimuli-responsive tetranuclear complex was assembled into new aggregates with controllable dimensionality through directional hydrogen bonds (HBs). A cyanide-bridged tetranuclear complex cation, [Co2Fe2(CN)6(tp*)2(bpy*)4]2+ (abbreviated to 12+) (tp*=hydrotris(3,5-dimethylpyrazol-1-yl)borate and bpy*=4,4′-di-methyl-2,2′-bipyridine) has two terminal cyanide nitrogens and acts as a hydrogen-bond acceptor (HBA) with a linear bridging mode. Co-crystallization of 12+ with p-hydroquinone (H2Q), a hydrogen-bond donor (HBD) with two donor sites, led to a one-dimensional aggregate, 1(BPh4)2⋅(H2Q)⋅2 H2O (2), while a two-dimensional sheet with a honeycomb structure, 13(PF6)6⋅(H3PG)2⋅4 CH3CN⋅8 H2O (3), was obtained by co-crystallization with phloroglucinol (H3PG) acting as a three-way structure-directing HBD. Magnetic measurements revealed that 2 and 3 exhibited thermal and light-induced electron-transfer-coupled spin transitions (ETCSTs).

Original languageEnglish
Pages (from-to)5193-5197
Number of pages5
JournalChemistry - A European Journal
Volume23
Issue number22
DOIs
Publication statusPublished - 2017 Apr 19

Keywords

  • cobalt
  • cyanides
  • electron transfer
  • hydrogen bonds
  • iron

ASJC Scopus subject areas

  • Catalysis
  • Organic Chemistry

Fingerprint

Dive into the research topics of 'Dimensionally Controlled Assembly of an External Stimuli-Responsive [Co<sub>2</sub>Fe<sub>2</sub>] Complex into Supramolecular Hydrogen-Bonded Networks'. Together they form a unique fingerprint.

Cite this