Shi-Bin Ren

A photoluminescent interpenetrating diamondoid metal–organic framework based on Cu4I4clusters with high thermal stability

A new, triply-interpenetrating diamondoid metal–organic framework, which exhibits strong photoluminescence at room temperature and high thermal stability, was prepared by the self-assembly of tetrahedral quadridentate linker tetrakis(4-pyridyloxymethylene)methane and tetrahedral Cu4I4clusters under solvothermal conditions.

An infinite photoluminescent coordination nanotube [CuSCN(L)]·(DMF)0.5

A novel, single-walled coordination nanotube [CuSCN(L)]·(DMF)0.5 (L = 1,3-di(pyridin-4-yl)propane, DMF = N,N-dimethylformamide) was easily prepared using two bidentate ligands and characterized by single crystal X-ray diffraction, which shows guest exchange properties and strong photoluminescence at room temperature.

A 3-dimensional coordination polymer with a fluorite structure constructed from a semi-rigid tetrahedral ligand

A new 3D coordination polymer was solvothermally synthesized, which possesses a fluorite network built from 8-connecting Co3 clusters and 4-connecting tetrahedral ligands, and exhibits ferromagnetic behaviour between the CoII ions.

Porous Coordination Polymers of Transition Metal Sulfides with PtS Topology Built on a Semirigid Tetrahedral Linker

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.

Rational synthesis of a microporous metal–organic framework with PtS topology using a semi-rigid tetrahedral linker

The assembly of a semi-rigid tetrahedral linker tetrakis[4-(carboxyphenyl)oxamethyl]methane acid (H4X) with CuII yields a binodal 4,4-connected coordination framework of distorted PtS topology, which exhibits permanent porosity confirmed by gas adsorption experiments of N2, H2, CO2, and CH4.

A 4-connected 3D porous coordination polymer with a binodal 6284 net built on tetrahedral quadridentate and bidentate linkers

An unprecedented 4-connected metal–organic framework [Zn2(tpom)(bdc)2]·2H2O (tpom = tetrakis(4-pyridyloxymethylene)methane, bdc = benzene-1,4-dicarboxylic acid) with a binodal 6284 net has been solvothermally synthesized from the assembly of a semirigid tetrahedral ligand (tpom) and a rigid linear bidentate ligand (bdc). The network of 1 is constructed by tetrahedrally connected tpom ligands and metal sites, in which 1D chains [Zn(bdc)]n interweave 2D diamondlike sheets [Zn2(tpom)]n into a 3D porous framework with a binodal 6284 net. 1 has a relatively high thermal stability and exhibits permanent porosity.

Syntheses and structures of three coordination polymers based on 4-methylbenzenethiolates of Zn(II) and Cd(II) and bipyridine

Using 4-methylbenzenethiolates of Zn or Cd as precursors and 4,4′-bipyridine (4,4′-bpy) as bridges, we have synthesized three new Zn(II)/Cd(II) coordination polymers, {[Cd(4,4′-bpy)2(NCS)2] · 2(SC6H4CH3-4)2} n (1), {[Zn(4,4′-bpy)(SC6H4CH3-4)2] · DMF} n (2) and {[Zn(4,4′-bpy)(SC6H4CH3-4)2] · H2O · 0.5CH3OH} n (3). Compound 1 is a 2-D sheet-like square polymer in which four 4,4′-bpy ligands and two isothiocyanate ligands complete the octahedral Cd(II) coordination sphere. Compounds 2 and 3 have similar coordination around Zn(II), but have different polymer structures. In 2, Zn(II) centers are linked via a bidentate 4,4′-bipyridine to form 1-D twisted arched chains, which is a new structural type for Zn(II). Compound 3 has 1-D zigzag chains. The 2-D sheets in 1 and 1-D chains in 2 and 3 are assembled via intermolecular C–H ··· π and C–H ··· S interactions into 3-D supramolecular networks. C–H ··· S interactions are a vital factor in constructing the sulfur-containing coordination polymers. Different coordination modes and packing schemes in 1–3 show that the guest molecule has a critical influence on formation of polymers.