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Article: A macrocyclic tetradentate ligand containing tertiary amine and pyridine functional groups. Electrochemical and X-ray structural studies on [CoII(CR-Me3)Cl]ClO4 (CR-Me3 = meso-2,3,7,11,12-pentamethyl-3,7,11,17-tetraazabicyclo[11.3.1]heptadeca-1(17), 13,15-triene)

TitleA macrocyclic tetradentate ligand containing tertiary amine and pyridine functional groups. Electrochemical and X-ray structural studies on [CoII(CR-Me3)Cl]ClO4 (CR-Me3 = meso-2,3,7,11,12-pentamethyl-3,7,11,17-tetraazabicyclo[11.3.1]heptadeca-1(17), 13,15-triene)
Authors
Issue Date1986
PublisherAmerican Chemical Society. The Journal's web site is located at http://pubs.acs.org/ic
Citation
Inorganic Chemistry, 1986, v. 25 n. 26, p. 4705-4708 How to Cite?
AbstractThe new ligand CR-Me3, meso-2,3,7,11,12-pentamethyl-3,7,11,17-tetraazabicyclo[11.3.1]heptadeca-1(17), 13,15-triene, has been prepared by methylation of CR-H (CR-H = meso-2,12-dimethyl-3,7,11,17-tetraazabicyclo[11.3.1]heptadeca-1(17),13,15- triene) with formic acid and formaldehyde. The reaction of CoCl2 with CR-Me3 in methanol yielded [CoII(CR-Me3)Cl]+, which was isolated as the perchlorate. A solution of this salt in acetonitrile yielded a reversible Co(III)/Co(II) couple at 0.69 V vs. the Cp2Fe+/0 couple. The high-spin (μeff = 4.8 μB) and air-stable [CoII(CR-Me3)Cl]ClO4 complex crystallizes in space group P21/n, with a = 9.392 (2) Å, b = 17.696 (5) Å, c = 14.189 (4) Å, β = 107.36 (2)°, and Z = 4. X-ray structural analysis (RF = 0.048 for 3316 observed Mo Kα data) showed that the macrocyclic cation conforms closely to idealized Cs molecular symmetry. The coordination geometry about the Co(II) atom is distorted tetragonal pyramidal, with one tertiary amino N atom at the apex and the metal center located 0.41 Å above the basal plane comprising the chloro ligand, the pyridyl N, and the remaining two tertiary amino N atoms. © 1986 American Chemical Society.
Persistent Identifierhttp://hdl.handle.net/10722/167269
ISSN
2015 Impact Factor: 4.82
2015 SCImago Journal Rankings: 1.873
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorChe, CMen_US
dc.contributor.authorMak, STen_US
dc.contributor.authorMak, TCWen_US
dc.date.accessioned2012-10-08T03:05:05Z-
dc.date.available2012-10-08T03:05:05Z-
dc.date.issued1986en_US
dc.identifier.citationInorganic Chemistry, 1986, v. 25 n. 26, p. 4705-4708en_US
dc.identifier.issn0020-1669en_US
dc.identifier.urihttp://hdl.handle.net/10722/167269-
dc.description.abstractThe new ligand CR-Me3, meso-2,3,7,11,12-pentamethyl-3,7,11,17-tetraazabicyclo[11.3.1]heptadeca-1(17), 13,15-triene, has been prepared by methylation of CR-H (CR-H = meso-2,12-dimethyl-3,7,11,17-tetraazabicyclo[11.3.1]heptadeca-1(17),13,15- triene) with formic acid and formaldehyde. The reaction of CoCl2 with CR-Me3 in methanol yielded [CoII(CR-Me3)Cl]+, which was isolated as the perchlorate. A solution of this salt in acetonitrile yielded a reversible Co(III)/Co(II) couple at 0.69 V vs. the Cp2Fe+/0 couple. The high-spin (μeff = 4.8 μB) and air-stable [CoII(CR-Me3)Cl]ClO4 complex crystallizes in space group P21/n, with a = 9.392 (2) Å, b = 17.696 (5) Å, c = 14.189 (4) Å, β = 107.36 (2)°, and Z = 4. X-ray structural analysis (RF = 0.048 for 3316 observed Mo Kα data) showed that the macrocyclic cation conforms closely to idealized Cs molecular symmetry. The coordination geometry about the Co(II) atom is distorted tetragonal pyramidal, with one tertiary amino N atom at the apex and the metal center located 0.41 Å above the basal plane comprising the chloro ligand, the pyridyl N, and the remaining two tertiary amino N atoms. © 1986 American Chemical Society.en_US
dc.languageengen_US
dc.publisherAmerican Chemical Society. The Journal's web site is located at http://pubs.acs.org/icen_US
dc.relation.ispartofInorganic Chemistryen_US
dc.titleA macrocyclic tetradentate ligand containing tertiary amine and pyridine functional groups. Electrochemical and X-ray structural studies on [CoII(CR-Me3)Cl]ClO4 (CR-Me3 = meso-2,3,7,11,12-pentamethyl-3,7,11,17-tetraazabicyclo[11.3.1]heptadeca-1(17), 13,15-triene)en_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.doi10.1021/ic00246a023-
dc.identifier.scopuseid_2-s2.0-0000401231en_US
dc.identifier.volume25en_US
dc.identifier.issue26en_US
dc.identifier.spage4705en_US
dc.identifier.epage4708en_US
dc.identifier.isiWOS:A1986F312900023-
dc.publisher.placeUnited Statesen_US
dc.identifier.scopusauthoridChe, CM=7102442791en_US
dc.identifier.scopusauthoridMak, ST=15129924400en_US
dc.identifier.scopusauthoridMak, TCW=7401931058en_US

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