| Solvent induced reactivity of 3,5-dimethylpyrazole towards zinc (II) carboxylates. | |
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MedLine Citation:
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PMID: 19727464 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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The reactions of 3,5-dimethylpyrazole with zinc(II)acetate dihydrate and varieties of aromatic carboxylic acids led to formation of mono-nuclear zinc complexes of composition [Zn(HDMP)2(RCO2)2] (R = C6H5, p-CH3-C6H4, p-NO2-C6H4 etc. HDMP = 3,5-dimethylpyrazole) in methanol, whereas the same reactants in dimethylformamide (DMF) gave binuclear 3,5-dimethylpyrazolato bridged zinc carboxylate complexes containing monodentate 3,5-dimethylpyraozole ligands with composition [Zn2(mu-DMP)2(HDMP)2(RCO2)2]. The mononuclear complexes can be converted to the corresponding binuclear complexes by simply dissolving in DMF. The reaction of zinc(II)acetate dihydrate with p-nitrobenzoic acid and 3,5-dimethylpyrazole in different solvents gave solvated mononuclear complexes of the corresponding solvent. All these solvated complexes having the core [Zn(HDMP)2(p-NO2-C6H4CO2)2] contain two structurally independent molecules in the asymmetric unit (Z' = 2). |
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Authors:
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Rupam Sarma; Dipjyoti Kalita; Jubaraj B Baruah |
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Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't Date: 2009-07-23 |
Journal Detail:
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Title: Dalton transactions (Cambridge, England : 2003) Volume: - ISSN: 1477-9234 ISO Abbreviation: Dalton Trans Publication Date: 2009 Sep |
Date Detail:
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Created Date: 2009-09-03 Completed Date: 2009-12-08 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 101176026 Medline TA: Dalton Trans Country: England |
Other Details:
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Languages: eng Pagination: 7428-36 Citation Subset: IM |
Affiliation:
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Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati, 781 039, Assam, India. |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Carboxylic Acids
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chemistry* Crystallography, X-Ray Molecular Conformation Pyrazoles / chemistry* Solvents / chemistry* Zinc / chemistry* |
| Chemical | |
Reg. No./Substance:
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0/Carboxylic Acids; 0/Pyrazoles; 0/Solvents; 67-51-6/3,5-dimethylpyrazole; 7440-66-6/Zinc |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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