Abstract In this work, a uranyl phosphonate [BTEA]2[(UO2)2(1,3-pbpH2)2F2] (1) (1,3-pbp = 1,3-phenylenebis(phosphonic acid), BTEA = benzyltriethylammonium cation) has been synthesized hydrothermally and characterized by single crystal X-ray diffraction, showing one-dimensional chain structure of uranium phosphonate which is isolated by BTEA cations and achieve three-dimensional supramolecular architecture
摘要 在这项工作中,磷酸铀酰 [BTEA]2[(UO2)2(1,3-pbpH2)2F2] (1) (1,3-pbp = 1,3-亚苯基双(膦酸),BTEA = 苄基三乙基铵阳离子) 已通过水热合成并通过单晶 X 射线衍射表征,显示出由 BTEA 阳离子分离的膦酸铀的一维链结构,并通过非共价相互作用实现了三维超分子结构。此外,还进行了粉末 X 射线衍射、热稳定性、紫外吸收、温度相关荧光、红外和拉曼光谱。
A uranyl phosphonate framework with a temperature-induced order–disorder transition and temperature-correlated photoluminescence
作者:Yi Wang、Xiangxiang Wang、Dongya Zhang、Fan Zhou、Daxiang Gui、Tao Zheng、Jiansheng Li、Zhifang Chai、Shuao Wang
DOI:10.1039/c8ce00450a
日期:——
UPF-1 experiences a thermally induced order–disorder transition, leading to a negative linear correlation between the photoluminescence intensity and temperature, and may find application as a luminescent thermometer.
Synthesis and properties of a new vanadium benzene‐1,3‐diphosphonate
作者:Felix Steinke、Norbert Stock
DOI:10.1002/zaac.202200167
日期:2022.11.15
The use of the linker molecule benzene-1,3-diphosphonic acid (H4L) and V4+-ions in a hydrothermal synthesis without further additives led to the discovery of a new coordination polymer of composition [(VO)2(H2O)4(L)] ⋅ 2H2O. The structure of the compound was solved by direct methods from powder X-ray diffraction data and refined using the Rietveld method. The compound was thoroughly characterized showing
在水热合成中使用连接分子苯-1,3-二膦酸 (H 4 L) 和 V 4+ -离子,无需其他添加剂,导致发现了一种新的配位聚合物,其组成为 [(VO) 2 (H 2 O) 4 (L)] ⋅ 2H 2 O。该化合物的结构通过直接方法从粉末 X 射线衍射数据中求解,并使用 Rietveld 方法进行精制。该化合物被彻底表征,在减压或高温下显示出可逆的非晶化。计算了潜在孔隙率,但无法通过 H 2 O 吸附实验验证。
SUPERCAPACITORS COMPRISING PHOSPHONATE AND ARSONATE METAL ORGANIC FRAMEWORKS (MOFS) AS ACTIVE ELECTRODE MATERIALS
申请人:Technische Universität Berlin
公开号:EP3783633A1
公开(公告)日:2021-02-24
The invention relates to an electrode suitable for constructing an electrochemical double layer capacitor and/or supercapacitor and comprising as an electrode material a metal organic framework (MOF), wherein the MOF comprises an inorganic building unit comprising metal atoms selected from group 1 to group 12 elements, and functional groups of organic linkers comprising oxygen (O) and one or more atoms selected from the group comprising phosphorus (P), arsenic (As), antimony (Sb), silicon (Si), selenium (Se) and bismuth (Bi). In embodiments of the invention, the functional groups of the organic linkers are selected from the group comprising phosphonate, arsonate, phosphonic acid, phosphinic acid, arsonic acids and/or arsinic acids, monoester and/or diester forms thereof. Further, the metal atoms may be selected from the group comprising zinc (Zn), cadmium (Cd), copper (Cu), cobalt (Co), nickel (Ni), gold (Au) and silver (Ag). The invention further relates to an electrochemical double layer capacitor and a supercapacitor comprising an electrode of the invention.
Nanoporous lyotropic liquid crystal polymer membranes with reversibly tuned pore size and selectivity, and methods using same
申请人:THE REGENTS OF THE UNIVERSITY OF COLORADO
公开号:US11046826B2
公开(公告)日:2021-06-29
The invention includes methods of reversibly tuning the effective pore size and/or solute rejection selectivity of a nanoporous lyotropic liquid crystal (LLC) polymer membrane. The membranes of the invention have high levels of pore size uniformity, allowing for size discrimination separation, and may be used for separation processes such as liquid-phase separations.