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- Publisher Website: 10.1016/S0277-5387(00)81683-6
- Scopus: eid_2-s2.0-0001140229
- WOS: WOS:A1994NC54500012
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Article: A simple synthetic route to N,N′-dialkyl-2,11-diaza[3.3](2,6)-pyridinophanes. Crystal structures of N,N′-di-tert-butyl-2,11-diaza[3.3](2,6)pyridinophane and its copper(II) complex
Title | A simple synthetic route to N,N′-dialkyl-2,11-diaza[3.3](2,6)-pyridinophanes. Crystal structures of N,N′-di-tert-butyl-2,11-diaza[3.3](2,6)pyridinophane and its copper(II) complex |
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Authors | |
Issue Date | 1994 |
Publisher | Elsevier BV. The Journal's web site is located at http://www.elsevier.com/locate/poly |
Citation | Polyhedron, 1994, v. 13 n. 5, p. 771-776 How to Cite? |
Abstract | Reaction of 2,6-bis9bromomethyl)pyridine with primary amines gave the 12-membered N,N′-dialkyl-2,11-diaza[3.3](2,6)pyridinophanes. The structures of N,N′-di-tert-butyl-2,11-diaza[3.3](2,6)pyridinophane (4) and its copper(II) derivative [Cu(4)Cl2] (7) have been characterized by X-ray crystal analysis. The average axial CuN (tertiary amine) distance of 2.490 Å in 7 is appreciably longer than the related value of 2.347 Å in Cu(6)Cl2·H2O.4 In 4, the two planar pyridyl rings are not in the same plane, but roughly parallel and the 12 atoms of the macrocyclic ring constitute a syn chair-chair conformation. In complex 7, the copper(II) ion adopts a distorted octahedral geometry, in which the tertiary amine nitrogen atoms span axial positions approximately normal to the square plane formed by the two pyridine nitrogens and the chloro ligands. The average Cu-N (tertiary amine), Cu-N(pyridine) and Cu-Cl distances are 2.49(2), 2.03(2) and 2.287(7) Å, respectively. © 1994. |
Persistent Identifier | http://hdl.handle.net/10722/167323 |
ISSN | 2023 Impact Factor: 2.4 2023 SCImago Journal Rankings: 0.379 |
ISI Accession Number ID |
DC Field | Value | Language |
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dc.contributor.author | Che, CM | en_US |
dc.contributor.author | Li, ZY | en_US |
dc.contributor.author | Wong, KY | en_US |
dc.contributor.author | Poon, CK | en_US |
dc.contributor.author | Mak, TCW | en_US |
dc.contributor.author | Peng, SM | en_US |
dc.date.accessioned | 2012-10-08T03:05:40Z | - |
dc.date.available | 2012-10-08T03:05:40Z | - |
dc.date.issued | 1994 | en_US |
dc.identifier.citation | Polyhedron, 1994, v. 13 n. 5, p. 771-776 | en_US |
dc.identifier.issn | 0277-5387 | en_US |
dc.identifier.uri | http://hdl.handle.net/10722/167323 | - |
dc.description.abstract | Reaction of 2,6-bis9bromomethyl)pyridine with primary amines gave the 12-membered N,N′-dialkyl-2,11-diaza[3.3](2,6)pyridinophanes. The structures of N,N′-di-tert-butyl-2,11-diaza[3.3](2,6)pyridinophane (4) and its copper(II) derivative [Cu(4)Cl2] (7) have been characterized by X-ray crystal analysis. The average axial CuN (tertiary amine) distance of 2.490 Å in 7 is appreciably longer than the related value of 2.347 Å in Cu(6)Cl2·H2O.4 In 4, the two planar pyridyl rings are not in the same plane, but roughly parallel and the 12 atoms of the macrocyclic ring constitute a syn chair-chair conformation. In complex 7, the copper(II) ion adopts a distorted octahedral geometry, in which the tertiary amine nitrogen atoms span axial positions approximately normal to the square plane formed by the two pyridine nitrogens and the chloro ligands. The average Cu-N (tertiary amine), Cu-N(pyridine) and Cu-Cl distances are 2.49(2), 2.03(2) and 2.287(7) Å, respectively. © 1994. | en_US |
dc.language | eng | en_US |
dc.publisher | Elsevier BV. The Journal's web site is located at http://www.elsevier.com/locate/poly | en_US |
dc.relation.ispartof | Polyhedron | en_US |
dc.title | A simple synthetic route to N,N′-dialkyl-2,11-diaza[3.3](2,6)-pyridinophanes. Crystal structures of N,N′-di-tert-butyl-2,11-diaza[3.3](2,6)pyridinophane and its copper(II) complex | en_US |
dc.type | Article | en_US |
dc.identifier.email | Che, CM:cmche@hku.hk | en_US |
dc.identifier.authority | Che, CM=rp00670 | en_US |
dc.description.nature | link_to_subscribed_fulltext | en_US |
dc.identifier.doi | 10.1016/S0277-5387(00)81683-6 | - |
dc.identifier.scopus | eid_2-s2.0-0001140229 | en_US |
dc.identifier.volume | 13 | en_US |
dc.identifier.issue | 5 | en_US |
dc.identifier.spage | 771 | en_US |
dc.identifier.epage | 776 | en_US |
dc.identifier.isi | WOS:A1994NC54500012 | - |
dc.publisher.place | Netherlands | en_US |
dc.identifier.scopusauthorid | Che, CM=7102442791 | en_US |
dc.identifier.scopusauthorid | Li, ZY=7409079858 | en_US |
dc.identifier.scopusauthorid | Wong, KY=7404760030 | en_US |
dc.identifier.scopusauthorid | Poon, CK=7202673504 | en_US |
dc.identifier.scopusauthorid | Mak, TCW=7401931058 | en_US |
dc.identifier.scopusauthorid | Peng, SM=24290862600 | en_US |
dc.identifier.issnl | 0277-5387 | - |