26-Ring-Channel Structure Constructed from Bimetal Phosphite Helical Chains

• DOI: 10.1021/ja070733k
• Publication Date: 2007-04-06T11:01:00Z
• Authors: Yu-Lun Lai; Kwang-Hwa Lii; Sue-Lein Wang
• Keywords: Bimetal; Tetrahedron; Hydrothermal Synthesis; Ring size

The first 26R channel structure, NTHU-5, built up with two types of helical metal phosphite chains has been synthesized under mild hydrothermal conditions; this novel open framework is composed both octahedral Al3+ and tetrahedral Zn2+ centers represents the example participation aluminum in a pore size over 20R; truly stack 26-membered rings instead just an opening; study successfully demonstrated that differently charged ions can form M−O−P−O−M' bonded structure ring larger than any other existing inorganic frameworks; addition, varied analogues be prepared using same approach; system NTHU-5 provided intriguingly new chemical synthesis for microporous materials interesting reaction conditions.