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īraga D, Desiraju GR, Miller JS, Orpen AG, Price SL (2002) Innovation in crystal engineering. Sanchez C, Julián B, Belleville P, Popall M (2005) Applications of hybrid organic–inorganic nanocomposites. Īllen FH, Hoy VJ, Howard JAK, Thalladi VR, Desiraju GR, Wilson CC, McIntyre GJ (1997) Crystal engineering and correspondence between molecular and crystal structures. Geometric optimization and electronic, topological, and biological activity were theoretically investigated using DFT, and potential biological activity was investigated using molecular docking analysis.ĭolbecq A, Dumas E, Mayer CR, Mialane P (2010) Hybrid organic-inorganic polyoxometalate compounds: from structural diversity to applications. Hirshfeld surface analysis and associated two-dimensional fingerprints for the study and quantification of intermolecular interactions in crystal and to determine charge transfer inside the structure, the HOMO/LUMO analysis was purposed. IR spectroscopy confirmed the presence of organic cations, and UV spectroscopy was also conducted to identify the complex. This work does the symmary and determination of the initial zero-dimensional crystal structure in aqueous media under ambient conditions. The researchers managed to selectively trigger one or the other behaviour in boryl shift reactions, including five unprecedented nucleophilic rearrangements.An original zero-dimensional 1, (2-aminoethyl) piperazinuim) tetrabromidomercurate (II) monohydrate (C 6H 17N 3).H 2O monomer has been isolated from the response of mercuric chloride (HgCl 2) with the organic base, H 2O, and HBr under ambient conditions. This makes them valuable reagents in cross-coupling reactions – so valuable indeed that there are now more than 130 commercial Mida boronates.Ī team led by University of Toronto’s Andrei Yudin and Travis Dudding, from Brock University, has now discovered that some Mida boronates can not only react as electrophiles but switch to nucleophilic behaviour. When required, the boron is activated by decoordinating the Mida nitrogen with a mild base. A trivalent ligand forms a cage around the boron, protecting it from reacting when it shouldn’t. Ten years ago, chemists developed N-methyliminodiacetic acid (Mida) boronates as an alternative to other boron reagents, many of which are unstable and can’t be stored long-term. Tapping into this unusual reactivity, the Canadian team behind the study discovered several boryl shift reactions that are analogues of well-known carbon transformations like the pinacol rearrangement. Source: © Daniel Hernanz Ramos/Getty ImagesĪ class of nitrogen-stabilised boron compounds can switch between their established electrophilic and unprecedented nucleophilic behaviour, researchers have revealed.
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