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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

TitleA 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
Authors
Issue Date1994
PublisherElsevier 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?
AbstractReaction 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 Identifierhttp://hdl.handle.net/10722/167323
ISSN
2015 Impact Factor: 2.108
2015 SCImago Journal Rankings: 0.592
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorChe, CMen_US
dc.contributor.authorLi, ZYen_US
dc.contributor.authorWong, KYen_US
dc.contributor.authorPoon, CKen_US
dc.contributor.authorMak, TCWen_US
dc.contributor.authorPeng, SMen_US
dc.date.accessioned2012-10-08T03:05:40Z-
dc.date.available2012-10-08T03:05:40Z-
dc.date.issued1994en_US
dc.identifier.citationPolyhedron, 1994, v. 13 n. 5, p. 771-776en_US
dc.identifier.issn0277-5387en_US
dc.identifier.urihttp://hdl.handle.net/10722/167323-
dc.description.abstractReaction 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.languageengen_US
dc.publisherElsevier BV. The Journal's web site is located at http://www.elsevier.com/locate/polyen_US
dc.relation.ispartofPolyhedronen_US
dc.titleA 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) complexen_US
dc.typeArticleen_US
dc.identifier.emailChe, CM:cmche@hku.hken_US
dc.identifier.authorityChe, CM=rp00670en_US
dc.description.naturelink_to_subscribed_fulltexten_US
dc.identifier.doi10.1016/S0277-5387(00)81683-6-
dc.identifier.scopuseid_2-s2.0-0001140229en_US
dc.identifier.volume13en_US
dc.identifier.issue5en_US
dc.identifier.spage771en_US
dc.identifier.epage776en_US
dc.identifier.isiWOS:A1994NC54500012-
dc.publisher.placeNetherlandsen_US
dc.identifier.scopusauthoridChe, CM=7102442791en_US
dc.identifier.scopusauthoridLi, ZY=7409079858en_US
dc.identifier.scopusauthoridWong, KY=7404760030en_US
dc.identifier.scopusauthoridPoon, CK=7202673504en_US
dc.identifier.scopusauthoridMak, TCW=7401931058en_US
dc.identifier.scopusauthoridPeng, SM=24290862600en_US

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