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Lookup NU author(s): Professor William Clegg, Dr Ross Harrington
This work is licensed under a Creative Commons Attribution 4.0 International License (CC BY 4.0).
In this paper, the clean high yielding, synthesis, and structure of the tetraphosphineligand, 1,1′,2,2′-tetrakis-(di-isopropyl-phosphino)ferrocene, (tdipf), is described. Inaddition, improved synthesis methods for 1,1′,2,2′-tetrakis(diphenylphosphino)ferrocene,(tppf), and 2,2′-bis-(diphenylphosphino)-1,1′-dibromoferrocene are also reported, and thesynthetic method is generalised to include the synthesis of 3,3′-bis-(diphenylphosphino)-1,1′,2,2′-tetrabromoferrocene. The related ligands 2,2′-bis-(iso-propylphosphino)-1,1′-bisdiphenylphosphinoferrocene(diprdppf) and 2,2′-bis-(di-isopropylphosphino)-dibromoferrocenehave also been prepared and characterised. The crystal structure of the square planarbimetallic nickel(II) dichloride of tdipf is also described, together with a brief NMR studyinvestigating the synthesis of this and related metal complexes. The crystal structures ofthe palladium and platinum dichloride complexes of 2,2′-bis-(di-isopropylphosphino)-1,1′-dibromoferrocene, bpdbf, are also discussed in the context of comparison with previouslyknown crystal structures in the same general family. A general discussion on the syntheticmethodology is given, along with indications for future research that other researchersmight explore.
Author(s): Horton PN, Coles SJ, Clegg W, Harrington RW, Butler IR
Publication type: Article
Publication status: Published
Journal: Inorganics
Year: 2025
Volume: 13
Issue: 1
Online publication date: 02/01/2025
Acceptance date: 23/12/2024
Date deposited: 03/01/2025
ISSN (electronic): 2304-6740
Publisher: MDPI AG
URL: https://doi.org/10.3390/inorganics13010010
DOI: 10.3390/inorganics13010010
Data Access Statement: NMR spectroscopic data are available in the Supplementary Materials, and additional specified data may be requested by contacting the authors. Crystallographic data are available from the Cambridge Crystallographic Database.
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