title: From monomers to solids: controlled hydrolysis to form novel, heteroleptic hydroxide-containing complexes.
abstract: Four novel alkaline earth metal tetranuclear aryloxide/pyrazolate hydroxides of the general formula M4(ligand)6(OH)2(donor)n have been prepared by either adding stoichiometric quantities of water to preformed alkaline earth metal aryloxides or in a direct metalation regime combining metal, ligand (alcohol, pyrazole), and donor with stoichiometric amounts of water. The compounds are considered as potential intermediates in the sol-gel process. A nonhydrolyzable magnesium aryloxide has also been obtained using the same reaction scheme. Unexpectedly, a dimeric strontium complex with further association of a second dimer via hydrogen bonding from the solvent of crystallization, ethylenediamine, has been isolated by the treatment of strontium metal with a mixture of alcohol and water. All compounds were characterized using X-ray crystallography, 1H and 13C NMR, and IR spectroscopy.
authors.affiliation: Department of Chemistry and the W. M. Keck Center for Molecular Electronics, Room 1-014, Center for Science and Technology, Syracuse University, Syracuse, New York 13244-4100, USA.
authors.forename: Weijie
authors.initials: W
authors.lastname: Teng
authors.forename: Marites
authors.initials: M
authors.lastname: Guino-O
authors.forename: Julia
authors.initials: J
authors.lastname: Hitzbleck
authors.forename: Ulrich
authors.initials: U
authors.lastname: Englich
authors.forename: Karin
authors.initials: K
authors.lastname: Ruhlandt-Senge