کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1335944 | 1500239 | 2015 | 6 صفحه PDF | دانلود رایگان |
Two new polyoxomolybdate based inorganic–organic hybrid compounds have been obtained from same ammonium ion ligand 1 and molybdate source just by altering reaction conditions. The new hybrid polyoxomolybdate complexes (LH)2[Mo6O19] 3 and (LH)4[Mo8O26] (MeCN)24 have distinct structural features revealed by X-ray crystallographic studies. The complex 3 contains two ammonium ligands to balance the charge on hexamolybdate dianion. The most striking feature of (LH)2[Mo6O19] is the presence of inter-ligand hydrogen bonding (NH⋯OC) between two ligands arranged in an antiparallel fashion that favors the formation of a net like structure which embeds the Mo6O19 dianion. The complex 4 contains four ammonium ligands to balance the charge on β-octamolybdate tetraanion. Interestingly, complex 4 exhibits strong hydrogen-bonding interactions between ammonium ligand and octamolybdate anion (NH⋯OMo) and no inter-ligand H-bonding interaction. The different structural features of hybrid compounds 3 and 4 suggest that different polyoxomolybdate clusters play a key role in the process of assembling of ligands.
New inorganic–organic hybrid polyoxomolybdate complexes (LH)2[Mo6O19] and (LH)4[Mo8O26] with distinct structural features are obtained from same ammonium based ligand and molybdenum source just by varying reaction conditions.Figure optionsDownload as PowerPoint slide
Journal: Polyhedron - Volume 100, 4 November 2015, Pages 290–295