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- Scopus: eid_2-s2.0-33748231313
- WOS: WOS:A1991EX12800011
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Article: Aggregation of Aza Crown Ethers by Metalation: Synthesis and Crystal Structure of 1‐Lithio‐1,7‐diaza[12]crown‐4—The First Lithiated Crown Ether
| Title | Aggregation of Aza Crown Ethers by Metalation: Synthesis and Crystal Structure of 1‐Lithio‐1,7‐diaza[12]crown‐4—The First Lithiated Crown Ether |
|---|---|
| Authors | |
| Issue Date | 1991 |
| Citation | Angewandte Chemie International Edition in English, 1991, v. 30, n. 1, p. 82-84 How to Cite? |
| Abstract | Deprotonation of diaza[12]crown‐4 with nBuLi results in dimerization. This is shown by the X‐ray structure analysis, according to which the product obtained is 1. Each Li ion is five‐coordinate and lies appreciably (ca. 0.94 Å) outside the plane of the crown ether. The experimentally found structural changes agree with those found for a model system by MNDO calculation. The Li ions in 1 are well saturated electronically but still accessible to reagents. (Figure Presented.) Copyright © 1991 by VCH Verlagsgesellschaft mbH, Germany |
| Persistent Identifier | http://hdl.handle.net/10722/332695 |
| ISSN | |
| ISI Accession Number ID |
| DC Field | Value | Language |
|---|---|---|
| dc.contributor.author | Barr, Donald | - |
| dc.contributor.author | Berrisford, David J. | - |
| dc.contributor.author | Méndez, Luis | - |
| dc.contributor.author | Slawin, Alexandra M.Z. | - |
| dc.contributor.author | Snaith, Ronald | - |
| dc.contributor.author | Stoddart, J. Fraser | - |
| dc.contributor.author | Williams, David J. | - |
| dc.contributor.author | Wright, Dominic S. | - |
| dc.date.accessioned | 2023-10-06T05:13:33Z | - |
| dc.date.available | 2023-10-06T05:13:33Z | - |
| dc.date.issued | 1991 | - |
| dc.identifier.citation | Angewandte Chemie International Edition in English, 1991, v. 30, n. 1, p. 82-84 | - |
| dc.identifier.issn | 0570-0833 | - |
| dc.identifier.uri | http://hdl.handle.net/10722/332695 | - |
| dc.description.abstract | Deprotonation of diaza[12]crown‐4 with nBuLi results in dimerization. This is shown by the X‐ray structure analysis, according to which the product obtained is 1. Each Li ion is five‐coordinate and lies appreciably (ca. 0.94 Å) outside the plane of the crown ether. The experimentally found structural changes agree with those found for a model system by MNDO calculation. The Li ions in 1 are well saturated electronically but still accessible to reagents. (Figure Presented.) Copyright © 1991 by VCH Verlagsgesellschaft mbH, Germany | - |
| dc.language | eng | - |
| dc.relation.ispartof | Angewandte Chemie International Edition in English | - |
| dc.title | Aggregation of Aza Crown Ethers by Metalation: Synthesis and Crystal Structure of 1‐Lithio‐1,7‐diaza[12]crown‐4—The First Lithiated Crown Ether | - |
| dc.type | Article | - |
| dc.description.nature | link_to_subscribed_fulltext | - |
| dc.identifier.doi | 10.1002/anie.199100821 | - |
| dc.identifier.scopus | eid_2-s2.0-33748231313 | - |
| dc.identifier.volume | 30 | - |
| dc.identifier.issue | 1 | - |
| dc.identifier.spage | 82 | - |
| dc.identifier.epage | 84 | - |
| dc.identifier.eissn | 1521-3773 | - |
| dc.identifier.isi | WOS:A1991EX12800011 | - |