| Reaction of an Osmium(VI) Nitrido Complex with Cyanide: Formation and Reactivity of an Osmium(III) Hydrogen Cyanamide Complex. | |
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MedLine Citation:
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PMID: 21997896 Owner: NLM Status: Publisher |
Abstract/OtherAbstract:
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Reaction of [Os(VI) (N)(L(1) )(Cl)(OH(2) )] (1) with CN(-) under various conditions affords (PPh(4) )[Os(VI) (N)(L(1) )(CN)(Cl)] (2), (PPh(4) )(2) [Os(VI) (N)(L(2) )(CN)(2) ] (3), and a novel hydrogen cyanamido complex, (PPh(4) )(2) [Os(III) {N(H)CN}(L(3) )(CN)(3) ] (4). Compound 4 reacts readily with both electrophiles and nucleophiles. Protonation and methylation of 4 produce (PPh(4) )[Os(III) (NCNH(2) )(L(3) )(CN)(3) ] (5) and (PPh(4) )[Os(III) (NCNMe(2) )(L(3) )(CN)(3) ] (6), respectively. Nucleophilic addition of NH(3) , ethylamine, and diethylamine readily occur at the C atom of the hydrogen cyanamide ligand of 4 to produce osmium guanidine complexes with the general formula [Os(III) {N(H)C(NH(2) )NR(1) R(2) }(L(3) )(CN)(3) ](-) , which have been isolated as PPh(4) salts (R(1) =R(2) =H (7); R(1) =H, R(2) =CH(2) CH(3) (8); R(1) =R(2) =CH(2) CH(3) (9)). The molecular structures of 1-5 and 7 and 8 have been determined by X-ray crystallography. |
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Authors:
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Jing Xiang; Wai-Lun Man; Shek-Man Yiu; Shie-Ming Peng; Tai-Chu Lau |
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Publication Detail:
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Type: JOURNAL ARTICLE Date: 2011-10-13 |
Journal Detail:
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Title: Chemistry (Weinheim an der Bergstrasse, Germany) Volume: - ISSN: 1521-3765 ISO Abbreviation: - Publication Date: 2011 Oct |
Date Detail:
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Created Date: 2011-10-14 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 9513783 Medline TA: Chemistry Country: - |
Other Details:
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Languages: ENG Pagination: - Citation Subset: - |
Copyright Information:
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Copyright © 2011 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim. |
Affiliation:
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Institute of Molecular Functional Materials and Department of Biology and Chemistry, City University of Hong Kong, Tat Chee Avenue, Kowloon Tong, Hong Kong (P.R. China), Fax: (+852) 34420522. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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