Synthesis,Crystal Structure and Gas Adsorption Properties of Metal-organic Supercontainer Based 2,6-Naphthalenedicarboxylate Linker

A new sulfonylcalixarene-based coordination container 1 was designed and synthesized from the self-assembly reaction of p-tert-butylsulfonylcalix[4]arene (TBSC),Co(II) ion,and 2,6-naphthalenedicarboxylic acid (NDC).It crystallizes in tetragonal system,space group I4/m with a=b=30.9119(19)A,c=43.565(3)A,V=41628(6)A³,D_c=0.731 g/cm³,M_r=9162.36,C₃₈₄H₃₄₈Co₂₄O₁₂₆S₂₄,Z=2,F(000)=9384,μ=0.566 mm^–1,the final GOOF=1.027,R=0.0987 and w R=0.2474 for 7240 observed reflections with I>2σ(I).Structural analyses indicate that 1 adopts an edge-directed octahedral geometry and consists of six TBSC-supported Co₄ tetranuclear units locating on the vertices and twelve NDC bridging ligands occupying the edges.The new compound exhibits outstanding performance for the C₂ hydrocarbons separation over CH₄.     

Synthesis and Crystal Structure of [K(18-Crown-6)]_3P_(11)·2en

1 INTRODUCTIONSince the first report on the reduction of lead by sodium to a green solution in 1891 by Johannis, polyanionic clusters of post-transition metals known as Zintl ions have attracted much attention in chemistry due to their beautiful molecules, diverse reactivity and potential applications[1, 2]. Polyphos- phide anions represent one of the most important classes of zintl ions. The binary alkali-metal poly- phosphides, such as MI4P6 (M = K, Rb, Cs)[3～5], MI3P7 (M = Li-Cs)…