Synthesis and characterization of heteroleptic 1-tris(pyrazolyl)borate beryllium complexes

Dominik Naglav; Dieter Bläser; Christoph Wölper; Stephan Schulz

doi:10.1021/ic402895h

Synthesis and characterization of heteroleptic 1-tris(pyrazolyl)borate beryllium complexes

Inorg Chem. 2014 Jan 21;53(2):1241-9. doi: 10.1021/ic402895h. Epub 2014 Jan 6.

Authors

Dominik Naglav¹, Dieter Bläser, Christoph Wölper, Stephan Schulz

Affiliation

¹ Institute of Inorganic Chemistry, University of Duisburg-Essen , Universitätsstr. 5-7, D-45117 Essen, Germany.

PMID: 24392708
DOI: 10.1021/ic402895h

Abstract

The synthesis and crystal structures of 1-tris(pyrazolyl)borate beryllium halides TpBeX (X = Cl 1, Br 2, I 3, F 4), the pyrazole adduct of TpBeF (5) and of 1-tris(pyrazolyl)borate beryllium hydride, deuteride and azide TpBeX (X = H 6, (2)H (D) 7, N3 8; Tp = 1-trispyrazolylborate) is described. In addition, (9)Be-NMR spectroscopy is introduced as suitable analytical tool for the in situ characterization of heteroleptic organoberyllium halides, pseudohalides and hydrides. Studies in different solvents and solvent mixtures allowed the formulation of a reference guide for the chemical shift of heteroleptic coordination complexes of beryllium only based on variation of the second substituent.