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Crystals 2013, 3(2), 275-288; doi:10.3390/cryst3020275
Article

Hydrogen-Bonding in Two Pyridinium Salts of [Mo2O4Cl4(μ2-dmsH)]3−Complex (dmsH = a Half-Neutralized Form of 2,2-Dimethylsuccinic Acid)

Received: 15 January 2013; in revised form: 12 March 2013 / Accepted: 14 March 2013 / Published: 3 April 2013
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Abstract: Reactions of a mononuclear molybdenum(V) starting material, (PyH)5[MoOCl4(H2O)]3Cl2, with 2,2-dimethylsuccinic acid in the presence of base afforded two products, (PyH)3[Mo2O4Cl42-dmsH)]·1/2CH3CN (1) and (PyH)4[Mo2O4Cl42-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 {Mo2O4}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.
Keywords: molybdenum; {Mo2O4}2+ core; carboxylate complexes; hydrogen-bonding; carboxylic acid dimer molybdenum; {Mo2O4}2+ core; carboxylate complexes; hydrogen-bonding; carboxylic acid dimer
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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MDPI and ACS Style

Modec, B. Hydrogen-Bonding in Two Pyridinium Salts of [Mo2O4Cl4(μ2-dmsH)]3−Complex (dmsH = a Half-Neutralized Form of 2,2-Dimethylsuccinic Acid). Crystals 2013, 3, 275-288.

AMA Style

Modec B. Hydrogen-Bonding in Two Pyridinium Salts of [Mo2O4Cl4(μ2-dmsH)]3−Complex (dmsH = a Half-Neutralized Form of 2,2-Dimethylsuccinic Acid). Crystals. 2013; 3(2):275-288.

Chicago/Turabian Style

Modec, Barbara. 2013. "Hydrogen-Bonding in Two Pyridinium Salts of [Mo2O4Cl4(μ2-dmsH)]3−Complex (dmsH = a Half-Neutralized Form of 2,2-Dimethylsuccinic Acid)." Crystals 3, no. 2: 275-288.


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