Reactions of benzoylmethylenetriphenylphosphorane with mercury(II) halides: spectral and structural characterization of [(C6H5)3PCHCOC6H5 · HgCl2]2 · 2CH3OH and [(C6H5)3PCHCOC6H5 · HgI2]2

Reactivity of mercury(II) halides with the unsymmetrical phosphorus ylide Ph2PCH2CH2PPh2C(H)C(O)Ph: Crystal structure of {HgI2[PPh2CH2CH2PPh2C(H)C(O)Ph]}n

“…As noted previously [15], the coordination of the ylide through carbon or oxygen causes a significant increase or decrease, respectively, in the m(CO) frequency. In the 1 H NMR spectra of 2 and 3, the doublets due to the methine proton at 4.68 and 4.34 ppm, respectively, appear in the same region as observed for the free ligand (4.26 ppm).…”

“…We have been interested in investigating the different bonding modes adopted by ylides when ligated to Hg(II) and U(VI) [14]. Hg(II) forms C-coordinated complexes with Ph 3 P@ C(H)C(O)Ph [15,16] and Ph 3 P@C(H)CO(OEt) [17]. On the other hand, regiospecific O-coordination of the acetyl oxygen has been observed for the reaction of Hg(II) halides with Ph 3 P@C(COPh)(COMe).…”

X-ray and Spectroscopy Studies of Mercury (II) and Silver (I) Complexes of α-Ketostabilized Phosphorus Ylides

“…The α-keto-stabilized phosphorus ylides was shown interesting properties such as their high stability and their ambidentate character as ligands (C-versus O-coordination). [24][25][26][27][28][29][30] This ambidentate character can be rationalized in terms of the resonance forms A-C (Scheme 1).…”

“…[24][25][26][27] The C and Ocoordinated complexes of Hg (II) was formed. [28][29][30] In this paper, we report the reactivity of the ligands 4-Bromo K. Karami, O. Büyükgüngör, and H. Dalvand benzoyl methylene triphenyl phosphorane (Y 1 ) and 4-Phenyl benzoyl methylene triphenyl phosphorane (Y 2 ), towards mercury (II) halides and silver (I) salts. One of the significance aspects of our work is to ascertain the preferred coordination modes of Y 1 and Y 2 to the Hg and Ag metals.…”

The 2:1 adducts of (benzoylmethylene)triphenylphosphorane with fumaric and terephthalic acids

“…Their popularity arises from their high stability, their reactivity towards a diverse range of metal salts and their ability to be tailored chemically to allow a variety of coordination modes to be accessed (Falvello et al, 1996(Falvello et al, , 1997(Falvello et al, , 1998Kalyanasundari et al, 1995Kalyanasundari et al, , 2004Vicente et al, 1988).…”