Abstract
The reactions of the monomeric phosphanylboranes Ph2P-BH2 center dot NMe3 (1a) and tBuHP-BH2 center dot NMe3 (1b) with the main group Lewis acids BH3 and BBr3 yield the adducts H3B center dot Ph2PBH2 center dot NMe3 (2a) and H3B center dot tBuHP-BH2 center dot NMe3 (2b), Br3B center dot Ph2PBH2 center dot NMe3 (3a), and Br3B center dot tBuHP-BH2 center dot NMe3 (3b). All these compounds were ...
Abstract
The reactions of the monomeric phosphanylboranes Ph2P-BH2 center dot NMe3 (1a) and tBuHP-BH2 center dot NMe3 (1b) with the main group Lewis acids BH3 and BBr3 yield the adducts H3B center dot Ph2PBH2 center dot NMe3 (2a) and H3B center dot tBuHP-BH2 center dot NMe3 (2b), Br3B center dot Ph2PBH2 center dot NMe3 (3a), and Br3B center dot tBuHP-BH2 center dot NMe3 (3b). All these compounds were completely characterized by single-crystal X-ray structure analysis, NMR and IR spectroscopy as well as mass spectrometry and DFT computations. The secondary and tertiary phosphines 1a and 1b behave as classical Lewis bases to coordinate BX3 (X = H, Br) as terminal groups.
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