Metal-containing polymers are obtained by grafting com. poly(4-vinylpyridine) (av. mol. wt. 60,000 or 160,000) with a NiII chromophore complex. The metal-containing chromophore was obtained from a tridentate benzoylhydrazine ligand. Chromophore fragments were grafted onto the polymer by formation of a coordinative bond between the metal and the pyridinic nitrogen. Two acentric mononuclear NiII complexes contg. pyridine as an additional ligand, in a square-planar or in an octahedral environment, were prepared and characterized also by single-crystal x-ray analysis. The chemical and thermal properties of the model complexes and of the grafted polymers were examined and compared with those of CuII- and PdII-based ones, in particular with reference to their NLO properties.
GRAFTING POLY(4-VINYLPYRIDINE) WITH SECOND ORDER NONLINEAR OPTICALLY ACTIVE NICKEL(II) CHROMOPHORE / Caruso, Ugo; Centore, Roberto; Panunzi, Barbara; Roviello, Antonio; Tuzi, Angela. - In: EUROPEAN JOURNAL OF INORGANIC CHEMISTRY. - ISSN 1434-1948. - STAMPA. - 13:(2005), pp. 2747-2753. [10.1002/ejic.200400903]
GRAFTING POLY(4-VINYLPYRIDINE) WITH SECOND ORDER NONLINEAR OPTICALLY ACTIVE NICKEL(II) CHROMOPHORE
CARUSO, UGO;CENTORE, ROBERTO;PANUNZI, BARBARA;ROVIELLO, ANTONIO;TUZI, ANGELA
2005
Abstract
Metal-containing polymers are obtained by grafting com. poly(4-vinylpyridine) (av. mol. wt. 60,000 or 160,000) with a NiII chromophore complex. The metal-containing chromophore was obtained from a tridentate benzoylhydrazine ligand. Chromophore fragments were grafted onto the polymer by formation of a coordinative bond between the metal and the pyridinic nitrogen. Two acentric mononuclear NiII complexes contg. pyridine as an additional ligand, in a square-planar or in an octahedral environment, were prepared and characterized also by single-crystal x-ray analysis. The chemical and thermal properties of the model complexes and of the grafted polymers were examined and compared with those of CuII- and PdII-based ones, in particular with reference to their NLO properties.File | Dimensione | Formato | |
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