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dc.contributor.authorDYASON, JM
dc.contributor.authorENGELHARDT, LM
dc.contributor.authorHEALY, PC
dc.contributor.authorWHITE, AH
dc.date.accessioned2017-05-03T11:09:18Z
dc.date.available2017-05-03T11:09:18Z
dc.date.issued1986
dc.identifier.issn0004-9425
dc.identifier.doi10.1071/CH9861043
dc.identifier.urihttp://hdl.handle.net/10072/25027
dc.description.abstractThe crystal structures of the title compounds, (C7H9N)3CuX, X = Cl , Br, I [(1), (2), (3)], have been determined by single-crystal X-ray methods at 295 K, being refined to residuals of 0.022, 0.053, 0.047 for 151, 312, 720 independent 'observed' reflections respectively. The three structures containing 3,5-dimethylpyridine have an interesting relationship in symmetry: (1) is rhombohedral , R3m, a 9.050(3)?, a 110.89(3)ଠZ 1; (2) is rhombohedral, R3c, a 10.328(5)?, a 95.60(4), Z 2; and (3), derived from (2), is monoclinic, Cc, a 13.233(6), b 15.083(7), c 11.491(6)?, ߠ98.27(4)ଠZ 4. The distances Cu- Cl , Br, I are 2.412(9), 2.51(1), 2.683(3)?, with Cu-N 2.08(1), 2.02(1), 1.98(2)- 2.15(4)? respectively. In (1), the symmetry of the molecule, containing pseudo- tetrahedrally coordinated copper, N3CuX, is a full 3 m, with the ligands lying in mirror planes containing the 3 axis; in (2), the ligands rotate about the Cu-N bonds so that the molecular symmetry is 3; and in (3) further distortion of this kind causes total loss of crystallographically imposed symmetry. This descent in symmetry is the converse of that observed in the rhombohedral series [(C6H7N)3CuX] (C6H7N = 3-methylpyridine), and the possible underlying reasons are explored in terms of intra- and inter-molecular X...H interactions.
dc.description.peerreviewedYes
dc.description.publicationstatusYes
dc.languageEnglish
dc.language.isoeng
dc.publisherCSIRO Publishing
dc.publisher.placeCollingwood, Australia
dc.relation.ispartofstudentpublicationN
dc.relation.ispartofpagefrom1043
dc.relation.ispartofpageto1051
dc.relation.ispartofjournalAustralian Journal of Chemistry
dc.relation.ispartofvolume39
dc.rights.retentionY
dc.subject.fieldofresearchChemical sciences
dc.subject.fieldofresearchcode34
dc.titleLewis-base Adducts of Group 1B Metal(I) Compounds. XXIII : Synthesis and structures of the tris(3,5-dimethylpyridine)copper(I) halides, [(C7H9N)3CuX], X = Cl, Br, I
dc.typeJournal article
dc.type.descriptionC1 - Articles
dc.type.codeC - Journal Articles
gro.date.issued2015-05-21T05:33:40Z
gro.hasfulltextNo Full Text
gro.griffith.authorHealy, Peter C.


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