Phosphorus Complexes of Group III Acids. II. Infrared Spectra of Boron Complexes of Polycyclic Phosphites

Synthesis, characterization and metal carbonyl complex formation of polycyclic phosphorus ligands

“…In 1952, Stetter and Steinacker (1) reported the prep aration of l-phospha-2,8j9-trioxa-adamantane, P^OCEQ^fCHg)^, and eight years later, Verkade and Reynolds (2) reported the synthesis of 4-methyl-2,6,7-trioxa-l-phosphabicyclo [2.2.2] octane, P(0CH2)3CCH2. Verkade and Piper later reported a study of the use of P(0CH2)3CCHg as a ligand toward metal ions (3,4), and the properties of PfOCH^gfCHg)^ and PfOCHg)^^^^^ as Lewis "bases toward Group III acids were reported by Heitsch and Verkade (5,6,7,8). The transition metal complexes of P(0CH)2(CH2)2 were reported by Huttemann in a doctoral dis sertation (9) and the complexes of P(0CH)g(CH2)3 and P(0CH2)2…”

The chemistry and transition metal complexes of 2,8,9-trioxa-1-phospha-adamantane

“…It has also been shown that the 00 bond has a higher force constant in substituted metal carbonyls than in any other metal carbonyl reported (28) has been.shown to be a slightly better Lewis base than III toward a number of boron Lewis acids (25).…”

“…Ligand III has been shown to be a considerably better Lewis base than open-chain phosphites in a study of the one to one complexes formed with the acids BH3, 3(0113)3 BF3 (24)(25)(26)(27).…”

Studies of properties of derivatives of 1-phospha-5-aza-2,6,9-trioxabicyclo[3.3.3]undecane and structurally related molecules

“…If necessary, sectioning is continued again-beginning below the first row and continuing on until complete. 4. For illustrations that cannot be satisfactorily reproduced by xerographic means, photographic prints can be purchased at additional cost and inserted into your xerographic copy.…”