Synthesis and thermal decomposition of a pyridylene-bridged bis-beta-diketiminate magnesium hydride cluster

Harder S, Spielmann J, Intemann J (2014)

Publication Status: Published

Publication Type: Journal article

Publication year: 2014

Journal

Dalton Transactions Royal Society of Chemistry

Publisher: Royal Society of Chemistry

Book Volume: 43

Pages Range: 14284-14290

Journal Issue: 38

DOI: 10.1039/c4dt00835a

Abstract

Reaction of PYR-(MgnBu)(2), in which PYR is 2,6-[(DIPP)NC(Me)CHC(Me)N-]2-pyridine and DIPP is 2,6-iPr(2)-phenyl, with (DIPP)NH2BH3 gave PYR-[MgNH(DIPP)BH3](2) (56%) which was characterized by crystal structure determination. Addition of THF resulted in beta-H elimination and formation of PYR-[MgNH(DIPP)-BH3](MgH)center dot THF (57%), likewise characterized by crystal structure determination. Conversion of the second amidoborane anion in H- could not be achieved. Reaction of PYR-(MgnBu)(2) with PhSiH3 gave PYR(MgH)(2), which crystallized as a dimer. The structure of [PYR-(MgH)(2)](2) shows an 8-membered ring of Mg2+ and H- ions. Thermal decomposition at 130 degrees C releases one equivalent of H-2, i.e. 50% of the expected value. Nucleophilic attack at the para-position and reduction of the pyridylene bridge might explain reduced H-2 release.

Authors with CRIS profile

Sjoerd Harder Lehrstuhl für Anorganische und Metallorganische Chemie

Involved external institutions

Universität Duisburg-Essen (UDE) DE Germany (DE) University of Groningen / Rijksuniversiteit Groningen NL Netherlands (NL)

How to cite

APA:

Harder, S., Spielmann, J., & Intemann, J. (2014). Synthesis and thermal decomposition of a pyridylene-bridged bis-beta-diketiminate magnesium hydride cluster. Dalton Transactions, 43(38), 14284-14290. https://dx.doi.org/10.1039/c4dt00835a

MLA:

Harder, Sjoerd, Jan Spielmann, and Julia Intemann. "Synthesis and thermal decomposition of a pyridylene-bridged bis-beta-diketiminate magnesium hydride cluster." Dalton Transactions 43.38 (2014): 14284-14290.

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