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Lookup NU author(s): Professor William Clegg
This work is licensed under a Creative Commons Attribution 4.0 International License (CC BY 4.0).
Reaction of Se2B17H17 1 with [(dppe)NiCl2] and N,N'-dimethylnaphthalenediamine (tmnd) typically gives new nineteen-vertex n-[10-(dppe)-10,9,11′-NiSe2B16H16] 2a (63 % yield) and new twelve-vertex [2-(dppe)-closo-2,1-NiSeB10H10] 3 (up to 9 % yield) of known structural type.† Occasionally, an isomer of 2a, specifically new iso-[10-(dppe)-10-9,9′-NiSe2B16H16] 2b, is obtained in yields of up to 4.5 %. On one occasion, an isopropoxy-substituted derivative of 2a, specifically new [8-(Me2HCO)-10-(dppe)-10,9,11′-NiSe2B16H15] 4, was also isolated, a compound presumably resulting from an acetone impurity during the preparative process. Incidental to the work, the [Se2B17H16]- anion 5, was isolated as its [tmndH]+ salt 5a. New compounds 2a, 2b, 3, 4, and 5a were characterised by multinuclear NMR spectroscopy and mass spectrometry, as well as by single-crystal X-ray diffraction analyses, and by concordance with the results of DFT nuclear shielding calculations.
Author(s): Bould J, Litecka M, Clegg W, Kennedy JD, Londesborough MGS
Publication type: Article
Publication status: Published
Journal: Dalton Transactions
Year: 2026
Pages: Epub ahead of print
Online publication date: 03/09/2026
Acceptance date: 02/09/2026
Date deposited: 04/09/2026
ISSN (print): 1477-9226
ISSN (electronic): 1477-9234
Publisher: Royal Society of Chemistry
URL: https://doi.org/10.1039/D6DT01477A
DOI: 10.1039/D6DT01477A
Data Access Statement: Crystallographic data for structural analysis have been deposited with the Cambridge Crystallographic Data Centre, CCDC nos. 2447767-2447771. Copies of this information may be obtained free of charge from The Director, CCDC, 12 Union Road, Cambridge CB2 1EY, UK (fax: +44-1223-336033; e-mail: deposit@ccdc.cam.ac.uk or http://www.ccdc.cam.ac.uk). Supporting Information available from the journal website: Multielement NMR data for all compounds. Mass spectra for compounds 2, 3, 4, and 5. Selected interatomic dimensions for single-crystal X-ray analyses of 2, 3, 4 and 5. Tables of calculated Cartesian atomic coordinates for all compounds.
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