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Issue 30, 2007
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1,8,9-Substituted anthracenes, intramolecular phosphine donor stabilized metaphosphonate and phosphenium

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Abstract

A series of 1,8,9-tris(phosphorus) substituted anthracenes was synthesised and fully characterised. Their molecular geometry is such that the middle phosphorus atom is in a highly congested space, with terminal phosphorus atoms in close proximity. The middle phosphorus atom accepts electron density from none, one or both terminal phosphorus atoms to form P–P bonds. Thus phosphino (repulsively interacting), metaphosphonato (single donor stabilised) as well as phosphenium (doubly phosphine donor stabilised) environments around the phosphorus atom in position 9 were synthesized and structurally characterised. Observed P⋯P distances range from 2.22 to 3.27 Å.

Graphical abstract: 1,8,9-Substituted anthracenes, intramolecular phosphine donor stabilized metaphosphonate and phosphenium

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Article information


Submitted
11 Apr 2007
Accepted
21 May 2007
First published
15 Jun 2007

Dalton Trans., 2007, 3289-3296
Article type
Paper

1,8,9-Substituted anthracenes, intramolecular phosphine donor stabilized metaphosphonate and phosphenium

P. Kilian and A. M. Z. Slawin, Dalton Trans., 2007, 3289
DOI: 10.1039/B705286C

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