Silver(I) 3-Aminomethylpyridine Complexes, Part 2: Effect of Ligand Ratio, Hydrogen Bonding, and π-Stacking with an Interacting Anion

Autor:	Rodney P. Feazell, Kevin K. Klausmeyer, Cody E. Carson
Rok vydání:	2006
Předmět:	Hydrogen bond Ligand Inorganic chemistry Stacking Inorganic Chemistry chemistry.chemical_compound Crystallography Bipyridine Monomer chemistry Polymerization Physical and Theoretical Chemistry Trifluoromethanesulfonate Stoichiometry
Zdroj:	Inorganic Chemistry. 45:2635-2643
ISSN:	1520-510X 0020-1669
DOI:	10.1021/ic051284x
Popis:	Reaction of 3-aminomethylpyridine (3-amp) with silver(I) salts of triflate (OTf-) and trifluoroacetate (tfa-) produce a variety of multidimensional coordination networks whose structures depend on the stoichiometry of the components present. A 1:1 ratio of 3-amp to AgX produces a linear polymer, 1, when X = tfa- and a planar sheet, 2, when X = OTf-. Addition of a second equivalent of ligand increases the dimensionality of both structures by one to form a two-dimensional sheet, 3, and a three-dimensional system, 4, for their respective anions. Addition of 2,2'-bipyridine (bipy) to solutions of any of the previous compounds produces the fixed-ratio complexes 5 (tfa- salt) and 6 (OTf- salt). The bipyridyl ligand halts the polymerization of compounds 1-4 by cutting the chain after each silver(I) link and forcing a 1:2:2 ratio of 3-amp to AgX to bipy. Compound 5, however, remains polymeric in nature due to the closed-shell Ag-Ag interactions of the planar metals holding the monomers together. Differences between structures of each ratio stem from the differences in basicity and in the extra degree of H-bonding ability that the OTf- anion has over tfa-.
Databáze:	OpenAIRE
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