%0 Journal Article
%T Hydrogen-Bonding in Two Pyridinium Salts of [Mo2O4Cl4(¦Ì2-dmsH)]3£¿Complex (dmsH£¿ = a Half-Neutralized Form of 2,2-Dimethylsuccinic Acid)
%A Barbara Modec
%J Crystals
%D 2013
%I MDPI AG
%R 10.3390/cryst3020275
%X Reactions of a mononuclear molybdenum(V) starting material, (PyH) 5[MoOCl 4(H 2O)] 3Cl 2, with 2,2-dimethylsuccinic acid in the presence of base afforded two products, (PyH) 3[Mo 2O 4Cl 4(¦Ì 2-dmsH)]¡¤1/2CH 3CN ( 1) and (PyH) 4[Mo 2O 4Cl 4(¦Ì 2-dmsH)]Cl ( 2). As revealed by the X-ray structure analysis, the half-neutralized form of the dicarboxylic acid, the dmsH £¿ ion, coordinated to the well-known {Mo 2O 4} 2+ core in the syn-syn bidentate bridging manner. In both compounds, the non-ionized terminus of the ligand, the COOH function, participated in hydrogen-bonding interactions. The incorporation of the chloride counteranion in 2, prevented the formation of the common ¡°carboxylic acid dimer¡± which was observed for 1. Instead, a hydrogen-bonded linkage of the COOH function with the chloride occurred.
%K molybdenum
%K {Mo2O4}2+ core
%K carboxylate complexes
%K hydrogen-bonding
%K carboxylic acid dimer
%U http://www.mdpi.com/2073-4352/3/2/275