Chiral metal gallophosphates templated by achiral triamine: Syntheses and characterizations of A[Mn(H2O)2Ga(PO4)2]3 and A[Zn3Ga(PO4)4]·H2O (A = H3DETA)

Chia Her Lin, Sue Lein Wang*

*此作品的通信作者

研究成果: 雜誌貢獻期刊論文同行評審

32 引文 斯高帕斯(Scopus)

摘要

Two new transition-metal gallophosphates, (H3DETA)[Mn(H2O)2Ga(PO4) 2]3 (1) and (H3DETA)[Zn3Ga(PO4)4] ·H2O (2) (DETA = NH2(CH2)2NH(CH2) 2NH2), have been synthesized under mild hydrothermal conditions and characterized by single-crystal X-ray diffraction, thermogravimetric analysis, and magnetic susceptibility data. They are the first transitionmetal gallophosphates that adopt chiral frameworks with achiral triamine templates. Both can be prepared in pure chiral forms. The structure of 1 consists of octahedra of MnO4(H2O)2 and tetrahedra of GaO4 and PO4 to form a three-dimensional 4-connected polyhedral network in CZP topology. The most interesting feature lies in the fact that the structure is well-sustained with all water ligands removed from the octahedral Mn2+ centers. The dehydration -hydration process for the coordination water is reversible. On the basis of TG analysis, material 1 can be thermally stable up to ≈300 °C. Material 2 is built up with tetrahedra of MO4 (M = Zn and Ga) and PO4 and crystallizes in the UCSB-7 structure type. It has the highest transition-metal-to-gallium ratio among MGaPOs. Crystal data: 1, orthorhombic, C2221, a = 10.0390(6) Å, b = 17.389(1) Å, c = 16.7356(9) Å, Z = 4; 2, cubic, 14132, a = 17.9192(6) Å, Z = 12.

原文英語
頁(從 - 到)96-102
頁數7
期刊Chemistry of Materials
14
發行號1
DOIs
出版狀態已發佈 - 2002
對外發佈

ASJC Scopus subject areas

  • 一般化學
  • 一般化學工程
  • 材料化學

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