Issue 10, 2021

Synthesis and characterisation of boranediyl- and diboranediyl-bridged diplatinum A-frame complexes

Abstract

A series of boranediyl-bridged diplatinum A-frame complexes, [Pt2X2(μ-BY)(μ-dmpm)2] (X = Cl, Br, I; Y = aryl, alkyl, amino, halo; dmpm = bis(dimethylphosphino)methane), were synthesised by the twofold oxidative addition of BX2Y to [Pt2(nbe)2(μ-dmpm)2] (nbe = norbornene) or to the paddlewheel complex [Pt2(μ-dmpm)3]. Similarly, the addition of B2X2(NMe2)2 (X = Cl, Br) to [Pt2(nbe)2(μ-dmpm)2] provided access to the diborane-1,2-diyl-bridged A-frame complexes [Pt2X2(μ-1,2-B2(NMe2)2)(μ-dmpm)2]. X-ray crystallographic studies of these (BY)n-bridged complexes show structural trends depending on the steric demands of Y and the nature of X. Analysis of higher-order 31P NMR satellites provided information on JP–Pt and JPt–Pt coupling constants, the latter correlating with the Pt⋯Pt distance. All (di)boranediyl complexes also proved unstable towards (successive) loss of the bridging “BY” unit(s), resulting in the formation of [Pt2X2(μ-dmpm)2].

Graphical abstract: Synthesis and characterisation of boranediyl- and diboranediyl-bridged diplatinum A-frame complexes

Supplementary files

Article information

Article type
Paper
Submitted
09 Nov 2020
Accepted
08 Jan 2021
First published
08 Jan 2021

Dalton Trans., 2021,50, 3506-3515

Synthesis and characterisation of boranediyl- and diboranediyl-bridged diplatinum A-frame complexes

C. Brunecker, M. Arrowsmith, J. H. Müssig, J. Böhnke, A. Stoy, M. Heß, A. Hofmann, C. Lenczyk, C. Lichtenberg, J. Ramler, A. Rempel and H. Braunschweig, Dalton Trans., 2021, 50, 3506 DOI: 10.1039/D0DT03855E

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Social activity

Spotlight

Advertisements