Structural complexity in indium selenides prepared using bicyclic amines as structure-directing agents

S. J. Ewing, P. Vaqueiro

Research output: Contribution to journalArticlepeer-review

7 Citations (Scopus)
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Abstract

The synthesis and characterization of five new indium selenides, [C9H17N2]3[In5Se8+x(Se2)1-x] (1-2), [C6H12N2]4[C6H14N2]3[In10Se15(Se2)3] (3), [C6H14N2][(C6H12N2)2NaIn5Se9] (4) and [enH2][NH4][In7Se12] (5), are described. These materials were prepared under solvothermal conditions, using 1,8-diazabicyclo[5.4.0]undec-7-ene (DBU) and 1,4-diazabicyclo[2.2.2]octane (DABCO) as structure-directing agents. Compounds 1-4 represent the first examples of ribbons in indium selenides, and 4 is the first example of incorporation of an alkali metal complex. Compounds 1, 2 and 4 contain closely related [In5Se8+x(Se2)1-x]3- ribbons which differ only in their content of (Se2)2- anions. These ribbons are interspaced by organic countercations in 1 and 2, while in 4 they are linked by highly unusual [Na(DABCO)2]+ units into a three-dimensional framework. Compound 3 contains complex ribbons, with a long repeating sequence of ca. 36 Å, and 4 is a non-centrosymmetric three-dimensional framework, formed as a consequence of the decomposition of DABCO into ethylenediamine (en) and ammonia. This journal is

Original languageEnglish
Pages (from-to)1592-1600
Number of pages9
JournalDalton Transactions
Volume44
Issue number4
Early online date18 Nov 2014
DOIs
Publication statusPublished - 2015

ASJC Scopus subject areas

  • Inorganic Chemistry

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