New Tricks by Old Anions: Hydrogen Bonded Hexacyanoferrous Anionic Networks

Ivica Cvrtila, Vladimir Stilinovic*

*Corresponding author for this work

Research output: Contribution to journalArticleAcademicpeer-review

10 Citations (Scopus)

Abstract

Hexacyanoferrates are well-known to form metal organic frameworks by coordination to metal atoms or acting as hydrogen bond acceptors. In this paper we report a new type of hexacyanoferrate self-assembly, based on direct hydrogen bonding of partially protonated hexacyanoferrate anions. By preparing a series of 15 hexacyanoferrates with various organic bases, we have found that protonated hexacyanoferrates (present in 10 structures) readily form chains (two structures), two-dimensional (four structures), or three-dimensional networks (four structures), whereby the dimensionality of the network generally increases with the protonation degree of the hexacyanoferrates. The exact mode of the self-assembly, including the network type, depends on fine interplay of the pK(a) value of the base, its steric properties, and the stoichiometry of the formed solid.

Original languageEnglish
Pages (from-to)6793-6800
Number of pages8
JournalCrystal Growth & Design
Volume17
Issue number12
DOIs
Publication statusPublished - Dec-2017
Externally publishedYes

Keywords

  • PRUSSIAN BLUE ANALOGS
  • SODIUM-ION BATTERIES
  • MOLECULAR TECTONICS
  • CRYSTAL-STRUCTURE
  • COORDINATION POLYMER
  • MAGNETIC-PROPERTIES
  • ROOM-TEMPERATURE
  • POTENTIOMETRIC DETERMINATION
  • BIMETALLIC ASSEMBLIES
  • CATHODE MATERIALS

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