20.500.12556/RUL-129500 Hydrogen-bonding in two pyridinium salts of [Mo$_2$O$_4$Cl$_4$(μ$_2$-dmsH)]$^{3−}$ complex (dmsH$^−$ = a half-neutralized form of 2,2-dimethylsuccinic acid) Reactions of a mononuclear molybdenum(V) starting material, (PyH)$_5$[MoOCl$_4$(H$_2$O)]$_3$Cl$_2$, with 2,2-dimethylsuccinic acid in the presence of base afforded two products, (PyH)$_3$[Mo$_2$O$_4$Cl$_4$(μ$_2$-dmsH)]·1/2CH$_3$CN (1) and (PyH)$_4$[Mo$_2$O$_4$Cl$_4$(μ$_2$-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$_2$O$_4$}$^{2+}$ 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. molybdenum {Mo$_2$O$_4$}$^{2+}$ core carboxylate complexes hydrogen-bonding carboxylic acid dimer anorganska kemija strukturna kemija kristalna struktura koordinacijske spojine karboksilatni kompleksi molibden vodikova vez dimeri karboksilne kisline true false true Angleški jezik Slovenski jezik Članek v reviji 2021-09-02 10:15:56 2021-09-02 10:15:57 2022-09-08 04:08:53 0000-00-00 00:00:00 2013 0 0 Str. 275-288 iss. 2 Vol. 3 2013 0000-00-00 Zaloznikova Objavljeno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 546.772.022 2073-4352 10.3390/cryst3020275 36678405 RAZ_Modec_Barbara_2013.pdf RAZ_Modec_Barbara_2013.pdf 1 112DDD0026B3A7C6AAFDCF781D9BEEC2 f0cfa93eedf3c92081705fbf73a3c3f4c541d9c2060f45009ff2c06d3bcf1f95 ef84513c-0bc5-11ec-a523-00155dcfd717 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=146482 http://www.mdpi.com/2073-4352/3/2/275 1 c46fadd8-0bc5-11ec-a523-00155dcfd717 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=146481 Fakulteta za kemijo in kemijsko tehnologijo 0 0 0