两个含2-巯基吡啶-1-氧Au(Ⅰ)配合物的合成、晶体结构与荧光性能

采用溶液法合成了2个含2-巯基吡啶-1-氧(mpo)的Au(Ⅰ)配合物:(ph3P)Au(mpo)(1)和[Au(mpo)2][Na(H2O)4].H2O(2)。通过X-射线单晶衍射与元素分析等方法确定了其晶体结构。配合物1属单斜晶系,空间群为P21/c,而配合物2属正交晶系,空间群为Pnma。配合物1的结构为零维的(ph3P)Au(mpo),而配合物2的结构是Au(mpo)2单元与一维Na(H2O)4带以及游离水分子通过氢键连结而成的三维结构。荧光测试表明,化合物2在300 nm紫外光激发下可以发射较强的蓝光(423.5 nm)。     

Synthesis, Crystal Structure and Chemical Bonding of a New Binary Lu-Sn Phase: Lu11Sn10

A new tetragonal phase of Lu11Sn10 is obtained from high temperature reaction of the pure elements in a welded tantalum tube. Its crystal structure was established by single-crystal X-ray diffraction. Lu11Sn10 crystallizes in the tetragonal space group I4/mmm (No.139) with a=11.2953(18), c=16.424(4), V=2095.5(7)3 , Z=4, Mr=3111.57, Dc=9.863 g/cm3 , μ=62.897 mm-1, F(000)=5124, and the final R=0.0348 and wR=0.0894 for 706 observed reflections with I>2σ(I). The structure of Lu11Sn10 may be derived from the Ho11Ge10 structural type. It is isostructural with Dy11Sn10 , featuring a three-dimensional (3D) framework composed of [Sn4] squares and [Sn2] dimers interlinked via Sn-Sn bonds with two types of one-dimensional (1D) tunnels along the c-axis, which are occupied by isolated Sn atoms, [Sn2] dimers and all the Lu atoms. Band structure calculation based on density functional theory method indicates that Lu11Sn10 is metallic.     

两个含2-巯基吡啶-1-氧Au(Ⅰ)配合物的合成、晶体结构与荧光性能

采用溶液法合成了2个含2-巯基吡啶-1-氧(mpo)的Au(Ⅰ)配合物:(ph₃P)Au(mpo) (1)和[Au(mpo)₂][Na(H₂O)₄]·H₂O (2)。通过X-射线单晶衍射与元素分析等方法确定了其晶体结构。配合物1属单斜晶系, 空间群为P2₁/c, 而配合物2属正交晶系, 空间群为Pnma。配合物1的结构为零维的(ph₃P)Au(mpo), 而配合物2的结构是Au(mpo)₂单元与一维Na(H₂O)₄带以及游离水分子通过氢键连结而成的三维结构。荧光测试表明, 化合物2在300 nm紫外光激发下可以发射较强的蓝光(423.5 nm)。