Detail of "2613-89-0"

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{[Cu(H2O)3][Cu(phmal)2]}n: a new two-dimensional copper(II) complex with intralayer ferromagnetic interactions (phmal = phenylmalonate dianion)

{[Cu(H2O)3][Cu(phmal)2]}n: a new two-dimensional copper(II) complex with intralayer ferromagnetic interactions (phmal = phenylmalonate dianion). Pasan, Jorge; Sanchiz, Joaquin; Ruiz-Perez, Catalina; Lloret, Francesc; Julve, Miguel (Departamento de Fisica Fundamental II, Laboratorio de Rayos X y Materiales Moleculares, Universidad de La Laguna, La Laguna (Tenerife) 38204, Spain). New Journal of Chemistry, 27(11), 1557-1562 (English) 2003 Royal Society of Chemistry. CODEN: NJCHE5. ISSN: 1144-0546. DOCUMENT TYPE: Journal CA Section: 78 (Inorganic Chemicals and Reactions) Section cross-reference(s): 75, 77 The novel sheet-like Cu(II) compd. {[Cu(H2O)3][Cu(Phmal)2]}n (1) (Phmal = dianion of phenylmalonic acid) was synthesized and its crystal structure detd. by x-ray diffraction. The structure of 1 consists of 21 chains of carboxylate(phenylmalonate)-bridged Cu(II) ions which are linked through double m-oxo(carboxylate) units to afford a two-dimensional network. The interlayer space is filled by the Ph rings of the phenylmalonate ligands that exhibit offset face-to-face interactions. Variable-temp. 653575-00-9 and 2613-89-0 are just another two chemicals used in this study. magnetic measurements of 1 show the occurrence of significant intralayer ferromagnetic interactions between the Cu(II) ions through anti-syn carboxylate- and double m-oxo-bridges which are analyzed and discussed in the light of the values found in related magneto-structurally characterized systems. .

Interaction between ligands in ternary complexes of cadmium(II) with phenanthroline and phenylalkylmalonates in solution

All Rights Reserved. Interaction between ligands in ternary complexes of cadmium(II) with phenanthroline and phenylalkylmalonates in solution. Guan, W.; Ge, C. H.; Zhang, X. D.; Tong, J.; Liu, Q. T. (Department of Environmental Science, Liaoning University, Shenyang 110036, Peop. Rep. China). Russian Journal of Coordination Chemistry, 32(11), 811-814 (English) 2006 Pleiades Publishing, Inc. CODEN: RJCCEY. ISSN: 1070-3284. DOCUMENT TYPE: Journal CA Section: 68 (Phase Equilibriums, Chemical Equilibriums, and Solutions) Section cross-reference(s): 72, 77 The formation and stability of the ternary complexes of cadmium(II) with phenanthroline and malonate, phenylmalonate, benzylmalonate, 2-phenylethylmalonate, and 3-phenylpropylmalonate are studied by the potentiometric pH-titrn. technique in 40 % (vol./vol.) dioxane-water at 25 °C and 0.1 mol/l ionic strength (NaNO3). In all systems, there are stable ternary complexes. The complexes possess enhanced stability relative to their statistical values. The possible reasons that lead to these results are discussed in terms of p-electron back donation from metal ions to ligands and the intramol. ligand-ligand arom. ring stacking interaction. 1H NMR measurements are used to demonstrate the arom. ring-stacking interaction. 2613-89-0 and 616-75-1 which are cas registry numbers of substances are two of reagents here. The relative contribution of each interactions to the enhanced stability is also estd. The results show that there are two weak interactions simultaneously obsd. in these ternary complexes. The interaction strength of arom. ring stacking in the ternary complexes increases in the phenylalkylmalonate ligand order: L0 < L1 < L2 u L3 (L0 = phenylmalonate, L1 = benzylmalonate, L2 = 2-phenylethylmalonate, L3 = 3-phenylpropylmalonate). .