A homoleptic rare-earth-metal tetramethylindate
Philipp Wetzel1, Cäcilia Maichle-Mössmer1, Reiner Anwander1
1Institut für Anorganische Chemie, Eberhard Karls Universität Tübingen, Auf der Morgenstelle 18, D-72076 Tübingen, Germany. reiner.anwander@uni-tuebingen.de.
Abstract:
The homoleptic complex La(InMe4)3 is obtained from the respective aluminium congener La(AlMe4)3via a donor-assisted tetramethylaluminate/tetramethylindate exchange protocol. Compound La(InMe4)3 exhibits interesting thermal lability as well as distinct cluster formation like La4In7(C)(CH)2(CH2)2(CH3)19 and La5In9(CH)6(CH3)24 upon addition of an excess of donor or thermal treatment. The neutral potentially tridentate ligand Me3TACN (1,4,7-trimethyl-1,4,7-triazacyclononane) is used to investigate donor-triggered intermediates. Compound La(InMe4)3 is the first crystallographically characterized homoleptic rare-earth-metal tetramethylindate and may readily be used as a precursor for follow-up chemistry distinct from La(AlMe4)3 and La(GaMe4)3.
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