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Issue 34, 2020
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Synthesis of heteroleptic gallium-substituted antimony hydrides by stepwise β-H elimination

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Abstract

Heteroleptic stibanes Cp*(R)SbCl (R = Dip 1, N(SiMe3)22, OB(NDipCH)23; Cp* = C5Me5; Dip = 2,6-i-Pr2-C6H3) react with monovalent gallanediyl LGa (L = HC[C(Me)N(Dip)]2) with elimination of 1,2,3,4-tetramethylfulvene, yielding heteroleptic metal-stabilized Sb hydrides [L(Cl)Ga](R)SbH (R = Dip 4, N(SiMe3)25, OB(NDipCH)26). Compounds 1–6 were characterized by heteronuclear NMR (1H, 11B, 13C) and IR spectroscopy, and the solid-state structures of 4–6 were determined by single-crystal X-ray diffraction. A close correlation between the 1H NMR chemical shift of the hydride ligand and the electronegativity of the Sb-coordinating atoms was revealed.

Graphical abstract: Synthesis of heteroleptic gallium-substituted antimony hydrides by stepwise β-H elimination

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Supplementary files

Article information


Submitted
29 May 2020
Accepted
07 Jul 2020
First published
13 Jul 2020

Dalton Trans., 2020,49, 11835-11842
Article type
Paper

Synthesis of heteroleptic gallium-substituted antimony hydrides by stepwise β-H elimination

C. Helling, C. Wölper and S. Schulz, Dalton Trans., 2020, 49, 11835
DOI: 10.1039/D0DT01937B

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