Projects per year
Abstract
Molecular -diketiminato (BDI) calcium hydride and n-hexyl derivatives are shown to display contrasting reactivities toward bis(pinacolato)diboron (B2pin2). Whereas the dimeric constitution of the calcium hydride is retained during formation of an unusual diborane(6) dianion, the initially dimeric organocalcium reagent is converted to a calcium diboranate monomer, [(BDI)Ca{pinB-Bpin(n-hex)}]. Attempts to effect heterolysis of the B–B bond of this latter species in a manner reminiscent of a previously reported magnesium system were unsuccessful and resulted in either dismutation to the homoleptic -diketiminate, [(BDI)2Ca], or, in the case of organic nitriles, the generation of N-donor adduct derivatives, [(BDI)Ca(NCR){pinB-Bpin(n-hex)}] (R = t-Bu, i-Pr, o-tol). This latter reactivity again contrasts to the previously reported behaviour of an analogous magnesium diboranate, observations that are rationalised by density functional theory (DFT) calculations to be effectively a consequence of the larger radius and lower resultant steric congestion, of the third-row group 2 cation.
Original language | English |
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Journal | Zeitschrift für Anorganische und Allgemeine Chemie |
Publication status | Acceptance date - 9 Jan 2023 |
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Dive into the research topics of 'Synthesis and Reactivity of Calcium Diborane(6) and Diboranate Derivatives'. Together they form a unique fingerprint.Projects
- 1 Finished
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Nucleophilic alkaline earth boryls: from conception and theory to application
Hill, M., Cresswell, A. & McMullin, C.
Engineering and Physical Sciences Research Council
1/05/18 → 31/07/22
Project: Research council
Equipment
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High Performance Computing (HPC) Facility
Steven Chapman (Manager)
University of BathFacility/equipment: Facility