Platinum bisphosphine complexes of 1,8-naphthosultone
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A series of three platinum (II) bisphosphine complexes 1-3 [Pt(1-(SO2),8-(O)-nap)(PR3)2] (where R3 = Ph3, Ph2Me, Me2Ph) have been prepared by metathesis from cis-[Pt(PR3)2Cl2)] and the dilithium salt of 1,8-naphthosultone. The novel compounds were fully characterised by X-ray crystallography, multinuclear NMR, IR and MS. The molecular structures of 1-3 were compared by measuring the peri-distance, splay angle magnitude, peri-atom displacement, naphthalene ring torsions, aromatic ring orientations and the geometry around the platinum centre. The platinum metal adopts a distorted square planar geometry in all three complexes which causes deformation of the naphthalene system. The degree of molecular deformation does not decrease upon going from 1 to 3 as anticipated, instead a competition between steric effects and intramolecular interactions causes 3 to display distortion intermediate of 1 and 2.
Diamond , L , Knight , F R , Cordes , D B , Fuller , A , Slawin , A M Z & Woollins , J D 2014 , ' Platinum bis phosphine complexes of 1,8-naphthosultone ' Polyhedron , vol 81 , pp. 356-363 . DOI: 10.1016/j.poly.2014.06.042
© 2014 Published by Elsevier Ltd. All rights reserved. This is the author’s version of a work that was accepted for publication in Polyhedron. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Polyhedron, 81, 30 June 2014 DOI http://dx.doi.org/10.1016/j.poly.2014.06.042
Funding: Engineering and Physical Sciences Research Council (EPSRC)
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