Abstract
In the title compound, C22H21FNO3P, a 1,3,2-dioxaphosphinan-2-yloxy derivative, three O atoms are bonded in a trigonal-pyramidal manner to the P atom. The exocyclic P-O bond is significantly longer than the two endocyclic P-O bonds, viz. 1.6678 (12) Å compared to 1.6046 (13) and 1.6096 (12) Å. The six-membered ring which includes the P atom has a chair conformation. The fluoro-phenyl ring is inclined to the naphthalene ring system by 24.42 (7)°. In the crystal, mol-ecules are linked via C-H⋯π inter-actions, forming slabs lying parallel to (10-1).
Highlights
C22H21FNO3P, a 1,3,2-dioxaphosphinan-2-yloxy derivative, three O atoms are bonded in a trigonal–pyramidal manner to the P atom
The exocyclic P—O bond is significantly longer than the two endocyclic P—O
The fluorophenyl ring is inclined to the naphthalene ring system by 24.42 (7)
Summary
Many phosphorus and/or nitrogen based ligands bind strongly to transition metals and they offer a wide range of properties and basicities due to the large variety of accessible substituents (Crabtree, 2005; Joslin et al, 2012; Kuehl, 2005; Tolman, 1977). The title compound is an example of a phosphorusnitrogen bidentate ligand. Complexation experiments with such ligands could result in the isolation of mono- or binuclear complexes (van den Beuken et al, 1997). Examples of bidentate ligands with phosphorus and nitrogen donor groups bonded to transition metals have been shown to be effective cross-coupling catalysts (Hayashi & Kumada, 1985). The present work is a continuation of the investigation into the synthesis and study of more bi- and tri-cyclic, penta- and hexa-coordinated phosphoranes to form anionic, neutral and zwitterionic compounds (Said et al 1996; Timosheva et al.2006; Kumara Swamy & Kumar, 2006)
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