Treatment of p-ferrocenylbenzoate [p-HOOCH4C6Fc, Fc = (eta5-C5H5)Fe(eta5-C5H5)] with Mn(OAc)2 x 2H2O or Cd(OAc)2 x 2H2O afforded one-dimensional linear chain polymer [[Mn(OOCH4C6Fc)2(mu2-OH2)(H2O)2](H2O)]n (1), double-bridge polymer [Mn(mu2-OOCH4C6Fc)2(phen)]n (phen = phenanthroline) (2), and ladderlike framework [[Cd(mu2-OOCH4C6Fc)(eta2-OOCH4C6Fc)(bbp)](CH3OH)]n (bbp = 4,4'-trimethylene-dipyridine) (3). The solution-state cyclic voltammograms indicate that the half-wave potentials of the ferrocenyl moieties in these polymers are all shifted to positive potential compared to that of sodium p-ferrocenylbenzoate. Both 1 and 2 behave as 1D Heisenberg Mn(II) chains with weak intrachain antiferromagnetic interactions between the local high-spin Mn(II) ions, and the exchange coupling parameters J (-5.20 and -3.25 cm(-1) for 1 and 2, respectively) are larger than those of most of the reported di-Mn(II) complexes that contain mu2-aqua and mu2-carboxylato units and one-dimensional Mn(II) carboxylic polymers.

Late transition metal (nickel, cobalt) complexes (1, 2) with β-ketoamine ligand (L) based on the pyrazolone derivative are synthesized by condensing 1-phenyl-3-methyl-4-benzoyl-5-pyrazolone with p-fluoroaniline, and then treating the β-ketoamine (L) produced with the respective metal halide. The bis(β-ketoamine)metal complexes can act as catalyst precursors for norbornene polymerization with activation by methylaluminoxane. The effects of the central metal variation in the complex on catalyst activities and polymer microstructure are described.

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The mevalonate pathway is an important drug target for the treatment of cancer and cardiovascular disease. We synthesized and studied a new type of nitrogen-containing bisphosphonate analogs and developed a sensitive end point assay method for enzyme FPPS, which was used for inhibitor screening. One potent FPPS inhibitor was discovered, and the structure-activity relationship of bisphosphonates for the enzyme inactivation was studied.

Two 1D polymeric chain structures, namely, {[Ag(3-impmd)]‚(SbF 6 )‚CH 2 Cl 2 } ∞ (1) and {[Ag(3-impmd)]‚(NO 3 )‚ MeOH} ∞ (2), were assembled from the flexible organic spacer N,N′-bis(3-imidazol-1-yl-propyl)-pyromellitic diimide (3-impmd) with AgSbF 6 and AgNO 3 , respectively. Complex 1 crystallizes with the 1D chains displaying cross-like arrangement, while Complex 2 presents a triple-stranded helical structure, which is dictated by the anions and further assembled into 3D architectures via various weak supramolecular interactions. The luminescent properties of both complexes were investigated in solution and solid state.