Homo- and Heteroleptic 8-Quinaldinolate Complexes From Elevated-temperature Rearrangements
AUSTRALIAN JOURNAL OF CHEMISTRY（2013）
Abstract
Three new zinc 8-quinaldinolate complexes have been obtained from rearrangement reactions at elevated temperatures including the first homoleptic zinc 8-quinaldinolate complex. The homoleptic, trinuclear complex [Zn-3(MQ)(6)] (1) (MQ = 8-quinaldinolate) was obtained by the recrystallisation of amorphous Zn(MQ)(2) from a 1,2,4,5-tetramethylbenzene flux at 270 degrees C. The heteroleptic complexes [Zn4Cl4(MQ)(4)] (2) and [Zn4Cl2(MQ)(6)] (3) were simultaneously obtained by the reaction between Zn(MQ)(2) and anhydrous ZnCl2 under the same conditions. All complexes contain quinaldinolate ligands in a mixed chelating-bridging coordination mode. The homoleptic complex adopts a V-shaped geometry whereas the heteroleptic complexes adopt closely related cyclic structures.
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Key words
polymer chemistry,self assembly,combinatorial,analytical chemistry,crystal structures,ab initio calculations,amino acids,proteins,quantum chemistry,computational chemistry,pharmaceutical chemistry,organic chemistry,green chemistry,medicinal chemistry,physical chemistry,biological chemistry,colloids,density functional theory,enzymes,structure,electrochemistry,ionic liquids,supramolecular chemistry,surface chemistry,mass spectrometry,interfaces,biosensors,nanotechnology,catalysis,combinatorial chemistry,reaction mechanisms,spectroscopy,peptide,photochemistry,macromolecules,kinetics,biocatalysis,inorganic chemistry,crystallography,educational,sensors
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