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- Publisher Website: 10.1039/DT9830000607
- Scopus: eid_2-s2.0-37049109246
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Article: Crown ethers as second-sphere ligands. The interactions of transition-metal ammines with 18-crown-6 and dibenzo-18-crown-6
Title | Crown ethers as second-sphere ligands. The interactions of transition-metal ammines with 18-crown-6 and dibenzo-18-crown-6 |
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Authors | |
Issue Date | 1983 |
Citation | Journal of the Chemical Society, Dalton Transactions, 1983, n. 4, p. 607-613 How to Cite? |
Abstract | Neutral and cationic transition-metal ammines interact with crown ethers in aqueous and non-aqueous solution via (N-H ⋯ O) hydrogen-bond formation to give discrete or polymeric adducts which are readily isolated by crystallisation. Dibenzo-18-crown-6 generally yields discrete 1:1 (metal complex:crown) adducts in which only one face of the macrocycle interacts with an ammine ligand, whereas 18-crown-6 often binds two such ligands, one to each face of the crown ether. The resulting adducts are then either polymeric or of 2:1 (metal complex:crown) stoicheiometry. Ammines which yield isolable adducts include [W(CO) |
Persistent Identifier | http://hdl.handle.net/10722/332806 |
ISSN | |
ISI Accession Number ID |
DC Field | Value | Language |
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dc.contributor.author | Colquhoun, Howard M. | - |
dc.contributor.author | Lewis, David F. | - |
dc.contributor.author | Stoddart, J. Fraser | - |
dc.contributor.author | Williams, David J. | - |
dc.date.accessioned | 2023-10-06T05:14:25Z | - |
dc.date.available | 2023-10-06T05:14:25Z | - |
dc.date.issued | 1983 | - |
dc.identifier.citation | Journal of the Chemical Society, Dalton Transactions, 1983, n. 4, p. 607-613 | - |
dc.identifier.issn | 1472-7773 | - |
dc.identifier.uri | http://hdl.handle.net/10722/332806 | - |
dc.description.abstract | Neutral and cationic transition-metal ammines interact with crown ethers in aqueous and non-aqueous solution via (N-H ⋯ O) hydrogen-bond formation to give discrete or polymeric adducts which are readily isolated by crystallisation. Dibenzo-18-crown-6 generally yields discrete 1:1 (metal complex:crown) adducts in which only one face of the macrocycle interacts with an ammine ligand, whereas 18-crown-6 often binds two such ligands, one to each face of the crown ether. The resulting adducts are then either polymeric or of 2:1 (metal complex:crown) stoicheiometry. Ammines which yield isolable adducts include [W(CO)<inf>5</inf>(NH<inf>3</inf>)], trans-[PtCl<inf>2</inf>(PMe<inf>3</inf>)(NH<inf>3</inf>)], trans-[PtCl<inf>2</inf>(NH<inf>3</inf>)<inf>2</inf>], [Co(NH<inf>3</inf>)<inf>6</inf>][PF<inf>6</inf>]<inf>3</inf>, [Cu(NH<inf>3</inf>)<inf>4</inf>(H<inf>2</inf>O)][PF<inf>6</inf>]<inf>2</inf>, and [Pt(H<inf>2</inf>NCH<inf>2</inf>CH<inf>2</inf>NH<inf>2</inf>) <inf>2</inf>][PF<inf>6</inf>]<inf>2</inf>. Such adduct formation provides the basis for a novel method of separating different transition metals; for example, 18-crown-6 selectively precipitates the copper(II) complex (as a polymeric 1:1 adduct) in the presence of an equimolar amount of the cobalt(III) ammine. | - |
dc.language | eng | - |
dc.relation.ispartof | Journal of the Chemical Society, Dalton Transactions | - |
dc.title | Crown ethers as second-sphere ligands. The interactions of transition-metal ammines with 18-crown-6 and dibenzo-18-crown-6 | - |
dc.type | Article | - |
dc.description.nature | link_to_subscribed_fulltext | - |
dc.identifier.doi | 10.1039/DT9830000607 | - |
dc.identifier.scopus | eid_2-s2.0-37049109246 | - |
dc.identifier.issue | 4 | - |
dc.identifier.spage | 607 | - |
dc.identifier.epage | 613 | - |
dc.identifier.isi | WOS:A1983QL60700004 | - |