Abstract
This research focused on microporous metal phosphates and 1, 2-ethylenediphosphonates with new properties synthesized via mild hydrothermal synthesis. 24 new compounds were prepared, among them were 14 metal oxalatophosphates, 6 metal phosphates and 4 metal 1, 2-ethylenediphosphonates. All structures have been characterized by single-crystal X-ray diffraction and to be further discussed on their synthesis condition and physical properties. Samples with individual purity were preliminarily checked by powder XRD patterns. The metal ratio and types were confirmed by electron probe microanalysis data. Organic template, water molecules and ligands in the structure were confirmed by EA data, thermogravimetric analyses, and 13C NMR. The magnetic data was measured on a Quantum Design SQUID magnetometer. Solid-state PL spectra and Reflectance UV–vis spectra were studied. Based on the different organic and inorganic hybrid types, the compounds can be categorized into three parts: The first part contains 14 metal oxalatophosphates which can be divided into series A and B: series A contains 10 indium compounds in which A4, A5, A7 and A9 exhibit similar layer topology. A2, A3, and A8 contain D6Rs as a common secondary building units which further connect into infinite chains in A2 and A3. Series B consists of four compounds respectively with Fe, Mn, Al/Zn and Ga as the metal center. The second part contains 6 three-dimensional zinc phosphates as series C : C1 to C5 are 16R channel structures templated by two linear amines and C6 is a 14R channel structure using TREN（tris(2-aminoethyl)amine） molecules as templates. Other than 1D channels, C3 to C5 consists of 2D 16-ring channels. Furthermore, C5 shows larger nonframework space than ND-1. In the third part are 3 gallium and 1 vanadium/gallium compounds (series D) with 1, 2-ethylenediphosphonic acids as ligands. D2 is a layer compound while D1, D3 and D4 are 3D open framework structures by connecting the carbon on 1, 2-ethylenediphosphonate ligands. Among the 24 new compounds in this thesis, there are 20 new structure types. Series A and B are respectively described in Chapter 2 and Chapter 3, series C is described in Chapter 4 and Series D is described in Chapter 5 in which every compound is detailed on its structure characteristic.