摘要

A new two dimensional open framework indium chalcogenide [In(12)S(21)(Se)(3)H(2)], NCYU-5, constructed from pentasupertetrahedral P1 clusters. [In(8)S(14)(Se(1/2))(3)H], and supertetrahedral T2 clusters, [In(4)S(7)(Se(1/2))(3)H], has been prepared through hydrothermal method. Each T2 cluster is jointed with three P1 clusters via Se atoms to form an infinite two dimensional structure stacked along the crystallographic c axis. The ion-exchange studies show that the guest molecules (TMDP) can be exchanged by monocations (Na(+), K(+)), and dications (Mg(2+), Ca(2+), Sr(2+), Ba(2+)). In the typical exchanged solids by Ba(2+) cations, the quantitative microanalysis data for the atomic ratio (Ba/Se) of Ba (1.86%) and Se (15.42%) is 12.05%. The luminescent output from the NCYU-5 cluster exhibits a temperature-dependent shift. A shift from lambda(max) = 433 nm to lambda(max) = 450 nm occurs as temperature increases from 77 K to 298 K.

  • 出版日期2011-6