Porous coordination polymers of transition metal sulfides with PtS topology built on a semirigid tetrahedral linker.
Porous coordination polymers of transition metal sulfides with PtS topology built on a semirigid tetrahedral linker.
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DOI：
10.1021/ic100212q
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发表时间：
2010-07
影响因子：
4.6
通讯作者：
Jun Zhang;Yun-Shan Xue;Lili Liang;S. Ren;Yi-zhi Li;H. Du;X. You
中科院分区：
文献类型：
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作者：
Jun Zhang;Yun-Shan Xue;Lili Liang;S. Ren;Yi-zhi Li;H. Du;X. You
在酸性条件下，以四齿键四(4-吡啶氧亚甲基)甲烷(TPOM)为交联剂，在有机硫存在的条件下，用溶剂热法合成了四种新型多孔金属硫化物配位聚合物[M(Tpom)S(X)(SH)(Y)]xz(H(2O)O)(金属硫化物骨架，记为MSF-n，n=1，Cd；2，Mn；3，Fe；4，Co；x=0，y=2，x=0.54，y=1.46)。MSF-n(n=1-4)是等结构的，建立在四面体TPOM连接体和方形平面MS(X)(SH)(Y)单元上，形成具有2层互穿的4(2)8(4)-PTS网的二节点4，4-连接的多孔骨架。由N(2)吸附测试估算，MSF-n具有永久孔隙率，其比表面积分别为575、622、617和767m(2)/g。在77K和1大气压下，MSF-n(n=1-4)的储氢量分别为1.03、1.37、1.29和1.58wt%，分别对应于单位晶胞中的2.0H(2)分子。此外，在室温和20大气压下，MSF-n(n=1-4)可吸附24.1、25.0、21.6和24.1wt%的二氧化碳和6.0、6.1、5.6和6.4wt%的甲烷。
Four novel porous metal sulfide coordination polymers, [M(tpom)S(x)(SH)(y)] x z(H(2)O) (metal-sulfide frameworks, denoted MSF-n, n = 1, Cd; 2, Mn; 3, Fe; 4, Co; x = 0, y = 2 for 1, 2, and 4 and x = 0.54, y = 1.46 for 3), were solvothermally prepared by using a quadridentate linker, tetrakis(4-pyridyloxymethylene)methane (tpom), in the presence of organic sulfur compound under an acidic conditions. MSF-n (n = 1-4) is isostructural and built upon the tetrahedral tpom linker and square planar MS(x)(SH)(y) unit, which form a binodal 4,4-connected porous framework with a 2-fold interpenetrated 4(2)8(4)-pts net. With rectangular pore channels of about 5 x 6 A(2) (interatomic distances between the nearest protruding H atoms across) running along both the crystallographic a and b directions, MSF-n possesses permanent porosity with a BET surface area of 575, 622, 617, and 767 m(2)/g for MSF-1, -2, -3, and -4, respectively, as estimated from N(2) adsorption measurements. MSF-n (n = 1-4) has hydrogen storage capacities of 1.03, 1.37, 1.29, and 1.58 wt % at 77 K and 1 atm, respectively, each corresponding to 2.0 H(2) molecules per unit cell. In addition, MSF-n (n = 1-4) can adsorb 24.1, 25.0, 21.6, and 24.1 wt % of carbon dioxide and 6.0, 6.1, 5.6, and 6.4 wt % of methane, respectively, at room temperature and 20 atm.