title: Tetravalent silicon connectors MenSi(p-C6H4CO2H)(4-n) (n = 0, 1, 2) for the construction of metal-organic frameworks.
abstract: A series of silicon-centered connecting units, Me(n)Si(p-C6H4CO2H)(4-n) (n = 0, 1, 2), have been prepared and their coordination polymers with Zn(II) metal atoms studied. The tetra-acid L1 (n = 0) acts as a tetrahedral node and reacts with Zn(II) centers to give 1, a novel interpenetrating 3D network containing distorted tetrahedral bimetallic secondary building units (SBUs). The triacid L2 (n = 1) acts as a trigonal pyramidal node and forms an intercalated 2D layered network, 2, with Zn(II) ions, containing distorted octahedral tetranuclear SBUs. Last, the bent diacid L3 (n = 2) reacts with Zn(II) centers to give 3, a corrugated 2D layered structure containing 1D zinc hydroxo chains. Together these three new coordination polymers demonstrate the potential versatility of tetravalent silicon containing connecting ligands for metal-organic framework construction.
authors.affiliation: Department of Chemistry, Imperial College London, South Kensington, London SW7 2AZ, United Kingdom. r.davies@imperial.ac.uk
authors.forename: R P
authors.initials: RP
authors.lastname: Davies
authors.forename: R J
authors.initials: RJ
authors.lastname: Less
authors.forename: P D
authors.initials: PD
authors.lastname: Lickiss
authors.forename: K
authors.initials: K
authors.lastname: Robertson
authors.forename: A J P
authors.initials: AJ
authors.lastname: White