Tetra-μ-benzoato-bis[(3-methylquinoline)copper(II)](Cu—Cu)

Abstract

Key indicators: single-crystal X-ray study; T = 293 K; mean (C-C) = 0.007 Å; R factor = 0.054; wR factor = 0.125; data-to-parameter ratio = 15.2.In the title compound, [Cu 2 (C 7 H 5 O 2 ) 4 (C 10 H 9 N) 2 ], the paddlewheel-type dinuclear complex molecule contains four bridging benzoate groups and two terminal 3-methylquinoline ligands. The asymmetric unit contains one and a half molecules with a total of three independent Cu atoms; there is an inversion center at the mid-point of the CuÁ Á ÁCu bond in one molecule.

Tetra-μ-benzoato-bis{[4-(pyrrolidin-1-yl)pyridine]zinc(II)}

“…acids and humic acids, mainly found in soil, is being extensively investigated. As models to examine these interactions we have previously used copper(II) and zinc(II) benzoates as building blocks and reported the structures of copper(II) and zinc(II) benzoates with quinoxaline, 6-methylquinoline, 3-methylquinoline, di-2-pyridylketone, andtrans-1-(2pyridyl)-2-(4-pyridyl)ethylene (Lee, et al, 2008;Yu, et al, 2008;Park, et al, 2008;Shin, et al, 2009;Yu, et al, 2009;Song, et al, 2009). The related paddle-wheel type structures for Zn complexes have been previouly reported (Necefoglu, et al, 2002;Zeleňák, et al,2004;Kamakar, et al, 2006;Ohmura, et al, 2005).…”

Bis(methanol-κO)bis(quinoline-2-carboxylato-κ2N,O)nickel(II)

“…For interactions of metal ions with amino acids, see: Daniele et al (2008); Parkin (2004); Tshuva & Lippard (2004); Stoumpos et al (2009). For related structures, see: Lee et al (2008); Park et al (2008); Shin et al (2009); Song et al (2009); Yu et al (2008Yu et al ( , 2009Yu et al ( , 2010; Kim et al (2011).…”

“…The interaction of transition metal ions with biologically active molecules such as amino acids, proteins, sugars, and various acids is of great importance in biological systems (Daniele, et al, 2008;Parkin, 2004;Tshuva & Lippard, 2004;Stoumpos, et al, 2009). As models to examine the interaction, we have intensively studied the interaction of transition metal ions with various acids such as benzoic acid, fulvic acids and humic acids and have reported a variety of structures of copper(II), cadmium(II), and zinc(II) benzoates with quinoxaline,6-methylquinoline, 3-methylquinoline, trans-1-(2pyridyl)-2-(4-pyridyl)ethylene, and di-2-pyridyl ketone (Lee, et al, 2008;Yu, et al, 2008;Park, et al, 2008;Shin, et al, 2009;Song, et al, 2009;Yu, et al, 2008Yu, et al, ,2009Yu, et al, ,2010Kim, et al, 2011). In this work, we have employed nickel (II) chloride as a building block and quinaldic acid as a ligand.…”

A neutral cubane with a ZnII4O4core: tetrabenzoatotetrakis(μ3-hydroxydi-2-pyridylmethanolato)tetrazinc(II)–acetone–methanol (1/2/1)

“…For background to transition metal ions as the major cationic contributors to the inorganic composition of natural water and biological fluids, see: Daniele et al (2008); For related crystal structures, see: Lee et al (2008); Park et al (2008); Yu et al (2008); Stoumpos et al (2008); Papaefstathiou & Perlepes (2002); Papatriantafyllopoulou et al (2007).…”

“…stages. As models to examine the interaction, therefore, we have previously used copper(II) benzoate as a building block and reported the structures of copper(II) benzoates with quinoxaline, 6-methylquinoline, and 3-methylquinoline (Lee, et al, 2008;Yu, et al, 2008;Park, et al, 2008). In this work, we have employed zinc(II) benzoate as a building block and di-2-pyridyl ketone as a ligand.…”