IR study of intramolecular coordination in organomercury and organotin derivatives of certain ortho-formylphenols
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A study was made of the absorption bands In the 1500–1750-cm−1 region of the spectra of o-carbonylcontaining phenols, and their phenylmercury and triethyltin derivatives, in polar and nonpolar solvents.
It has been shown that the carbonyl groups in these compounds coordinate with the phenylmercury and triethyltin groups.
The stability of chelate rings with formyl groups is characterized by the degree of breakdown of their coordinational bonding in coordinating solvents, decreasing with the acceptor capacity for the unshare delectron pair, i.e., in the order H>PhHg>Et3Sn.
In the case of competing substituents, the carbonyl group preferentially coordinates with the halide atom.
KeywordsPhenol Absorption Band Carbonyl Carbonyl Group Halide
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