abstract: two new transition metal complexes, containing the acidic ligand 5-chlorosalicylic acid (h2l5), and 1,10-phenanthroline（phen） and 1,3-di(4-pyridyl)propane (bpp) as secondary ligands are reported. they are formulated as {[pb(hl5)2(phen)(h2o)]·h2o}n(1), [zn2(hl5)4(bpp)2]n(2). all the complexes are characterized by single-crystal x-ray diffractions. compoud 1 crystallizes in the triclini...

A novel method of texture modelling based on discrete distribution mixtures is discussed. The statistical properties of textures are modelled by a discrete distribution mixture of product components. A natural colour texture is spectrally factorized and discrete mixtures models are learned and used to synthesize single orthogonal monospectral components. Texture synthesis is based on easy compu...