Macrocyclic amines as structure-directing agents for the synthesis of three-dimensional antimony-sulfide frameworks

Anthony V. Powell, R. J E Lees, Ann M. Chippindale

Research output: Contribution to journalArticlepeer-review

41 Citations (Scopus)

Abstract

A new family of antimony sulfides, incorporating the macrocyclic tetramine 1,4,8,11-tetraazacyclotetradecane (cyclam), has been prepared by a hydrothermal method. [C10N4H26][Sb4S7] (1), [Ni(C10N4H24)][Sb4S 7] (2), and [Co(C10N4H24)] x[C10N4H26]1-x[Sb 4S7] (0.08 = x = 0.74) (3) have been characterized by single-crystal X-ray diffraction, elemental analysis, thermogravimetry, and analytical electron microscopy. All three materials possess the same novel three-dimensional Sb4S72- framework, constructed from layers of parallel arrays of Sb4S84- chains stacked at 90° to one another. In 1, doubly protonated macrocyclic cations reside in the channel structure of the antimony-sulfide framework. In 2 and 3, the cyclam acts as a ligand, chelating the divalent transition-metal cation. Analytical and X-ray diffraction data indicate that the level of metal incorporation in 2 is effectively complete, whereas in 3, both metalated and nonmetalated forms of the macrocycle coexist within the structure. © 2006 American Chemical Society.

Original languageEnglish
Pages (from-to)4261-4267
Number of pages7
JournalInorganic Chemistry
Volume45
Issue number10
DOIs
Publication statusPublished - 15 May 2006

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