摘要 镧系元素二(2-乙基己基)磷酸酯 (LnA3) 结晶为针状样品,呈现轴向织构,沿织构的同一周期为 5.3A。EuA3 的六边形单元格具有以下参数:α = 18.6 A , c = 10.4 A , z = 2。 从红外和发光 (EuA3) 光谱可以看出,LnA3 分子与相邻配位八面体形成刚性链配位聚合物结构由烷基磷酸桥连接。LnA3 在烷烃和供体溶剂中的溶解性非常差。然而,我们开发了一系列系统,其中由于形成低聚物或混合配体复合物,LnA3 的溶解度急剧增加。已经使用热力学和光谱方法研究了这些系统中发生的配位化学过程。讨论了所形成配合物的结构式和强度。在混合配体配合物分解时,Am-镧系元素和Eu-镧系元素系列发生了相当大的分离。
DOI:
10.1016/0925-8388(94)90979-2
作为产物:
描述:
氢氧化镧 、 bis-(2-ethylhexyl)phosphate 在
氢溴酸 作用下,
以
环己烷 为溶剂,
反应 2.0h,
以to obtain 110.2 g of lanthanum di(2-ethylhexyl) phosphate having a concentration of about 20%的产率得到lanthanum(III) tri di-(2-ethylhexyl)phosphate
参考文献:
名称:
Method of producing rare earth salt of dialkyl phosphate or dioleyl phosphate
METHOD OF PRODUCING RARE EARTH SALT OF DIALKYL PHOSPHATE OR DIOLEYL PHOSPHATE
申请人:Ozawa Yoichi
公开号:US20100228044A1
公开(公告)日:2010-09-09
There is provided a method of producing a rare earth salt of a dialkyl phosphate or a rare earth salt of dioleyl phosphate of a high purity useful as a polymerization catalyst of a conjugated diene compound by directly reacting a rare earth oxide or a rare earth hydroxide with a dialkyl phosphate or dioleyl phosphate of a high purity. In the invention, the rare earth oxide or rare earth hydroxide is reacted with the dialkyl phosphate or dioleyl phosphate of a high purity in a non-polar solvent in the presence of at least one compound selected from a halogenated hydroacid, phosphorous acid and a rare earth halide made from the same element as in an objective product as a catalyst.
neighbouring coordination octahedra linked by alkylphosphate bridges. LnA3 is very poorly soluble in alkanes as well as in donor solvents. However, we developed the series systems in which the solubility of LnA3 increases dramatically as a result of the formation of oligomers or mixed-ligand complexes. Coordination chemical processes occurring in these systems have been studied using thermodynamic and spectroscopic
摘要 镧系元素二(2-乙基己基)磷酸酯 (LnA3) 结晶为针状样品,呈现轴向织构,沿织构的同一周期为 5.3A。EuA3 的六边形单元格具有以下参数:α = 18.6 A , c = 10.4 A , z = 2。 从红外和发光 (EuA3) 光谱可以看出,LnA3 分子与相邻配位八面体形成刚性链配位聚合物结构由烷基磷酸桥连接。LnA3 在烷烃和供体溶剂中的溶解性非常差。然而,我们开发了一系列系统,其中由于形成低聚物或混合配体复合物,LnA3 的溶解度急剧增加。已经使用热力学和光谱方法研究了这些系统中发生的配位化学过程。讨论了所形成配合物的结构式和强度。在混合配体配合物分解时,Am-镧系元素和Eu-镧系元素系列发生了相当大的分离。
Method of producing rare earth salt of dialkyl phosphate or dioleyl phosphate
申请人:Bridgestone Corporation
公开号:US07906631B2
公开(公告)日:2011-03-15
There is provided a method of producing a rare earth salt of a dialkyl phosphate or a rare earth salt of dioleyl phosphate of a high purity useful as a polymerization catalyst of a conjugated diene compound by directly reacting a rare earth oxide or a rare earth hydroxide with a dialkyl phosphate or dioleyl phosphate of a high purity. In the invention, the rare earth oxide or rare earth hydroxide is reacted with the dialkyl phosphate or dioleyl phosphate of a high purity in a non-polar solvent in the presence of at least one compound selected from a halogenated hydroacid, phosphorous acid and a rare earth halide made from the same element as in an objective product as a catalyst.