Liu Lei, Li Jinping, Dong Jinxiang, Sisak Dubravka, Baerlocher Christian, McCusker Lynne B
Research Institute of Special Chemicals, Taiyuan University of Technology, Taiyuan, Shanxi 030024, People's Republic of China.
Inorg Chem. 2009 Sep 21;48(18):8947-54. doi: 10.1021/ic901196f.
Two novel zirconium phosphate compounds, |(C(9)H(8)N)(4)(H(2)O)(4)|[Zr(8)P(12)O(40)(OH)(8)F(8)] and |(C(9)H(8)N)(2)|[Zr(2)P(2)O(6)(OH)(4)F(4)], designated as ZrPOF-Q1 and ZrPOF-Q2, respectively, have been synthesized hydrothermally in the presence of quinoline and HF and characterized by elemental and thermogravimetric analyses, UV-vis spectroscopy, and scanning electron microscopy. Their crystal structures were determined from powder X-ray diffraction data using a charge-flipping algorithm. The ZrPOF-Q1 structure [P1, a = 10.7567(1) A, b = 13.8502(1) A, c = 14.8995(1) A, alpha = 109.6(1) degrees, beta = 101.1(1) degrees, and gamma = 100.5(1) degrees] consists of zirconium phosphate layers with quinolinium ions in between. The layers are unusual in that isolated ZrO(2)F(4) octahedra are anchored on both sides of the layer and protrude into the interlayer space. The ZrPOF-Q2 structure [P1, a = 7.7058(1) A, b = 12.3547(1) A, c = 6.5851(1) A, alpha = 97.0(1) degrees, beta = 89.7(1) degrees, and gamma = 101.9(1) degrees] consists of zirconium phosphate chains with an unusual Zr/P ratio of 1.0, interspersed with quinolinium ions. Both materials are stable up to 250 degrees C and exhibit interesting photoluminescence in the UV-vis spectral region. This is attributed to the protonated quinoline molecules, which are an integral part of both structures.
两种新型磷酸锆化合物，|C(9)H(8)N(H(2)O)(4)|[Zr(8)P(12)O(40)(OH)(8)F(8)] 和 |(C(9)H(8)N)(2)|[Zr(2)P(2)O(6)(OH)(4)F(4)]，分别命名为ZrPOF-Q1和ZrPOF-Q2，已在喹啉和HF存在下通过水热法合成，并通过元素分析、热重分析、紫外可见光谱和扫描电子显微镜进行了表征。它们的晶体结构通过使用电荷翻转算法从粉末X射线衍射数据确定。ZrPOF-Q1结构[P1，a = 10.7567(1) Å，b = 13.8502(1) Å，c = 14.8995(1) Å，α = 109.6(1)°，β = 101.1(1)°，γ = 100.5(1)°]由磷酸锆层组成，层间夹有喹啉鎓离子。这些层的不同寻常之处在于，孤立的ZrO(2)F(4)八面体固定在层的两侧并伸入层间空间。ZrPOF-Q2结构[P1，a = 7.7058(1) Å，b = 12.3547(1) Å，c = 6.5851(1) Å，α = 97.0(1)°，β = 89.7(1)°，γ = 101.9(1)°]由磷酸锆链组成，其Zr/P比为1.0，这一比例不同寻常，链间散布着喹啉鎓离子。两种材料在高达250℃时都很稳定，并且在紫外可见光谱区域表现出有趣的光致发光。这归因于质子化的喹啉分子，它们是两种结构不可或缺的一部分。
