title: Well-defined, nanometer-sized LiH cluster compounds stabilized by pyrazolate ligands.
abstract: The assembly of well-defined large cluster compounds of ionic light metal hydrides is a synthetic challenge and of importance for synthesis, catalysis, and hydrogen storage. The synthesis and characterization of a series of neutral and anionic pyrazolate-stabilized lithium hydride clusters with inorganic cores in the nanometer region is now reported. These complexes were prepared in a bottom-up approach using alkyl lithium and lithium pyrazolate mixtures with silanes in hydrocarbon solutions. Structural characterization using synchrotron radiation revealed isolated cubic clusters that contain up to 37 Li(+) cations and 26 H(-) ions. Substituted pyrazolate ligands were found to occupy all corners and some edges for the anionic positions.
authors: School of Chemistry, Monash University, PO Box 23, Melbourne, VIC, 3800 (Australia). Andreas.Stasch@monash.edu.
authors: Andreas
authors: A
authors: Stasch
keywords: cluster compounds; hydrides; hydrogen storage materials; lithium; pyrazolate ligands