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Article: Synthesis, characterisation, crystal structures and reactivity of a series of ruthenium-cobalt mixed-metal nitrido carbonyl clusters with iodide ligands

TitleSynthesis, characterisation, crystal structures and reactivity of a series of ruthenium-cobalt mixed-metal nitrido carbonyl clusters with iodide ligands
Authors
Keywords15N-NMR spectroscopy
Cluster
Iodide
Nitrido
Ruthenium-cobalt
Issue Date2001
PublisherElsevier SA. The Journal's web site is located at http://www.elsevier.com/locate/jorganchem
Citation
Journal Of Organometallic Chemistry, 2001, v. 626 n. 1-2, p. 125-138 How to Cite?
AbstractReaction of [Ru3(μ-H)2(CO)9(μ3-NOMe)] (1) with two equivalents of [Cp*Co(CO)I2] (Cp*=η5-C5Me5) in refluxing THF resulted in the isolation of four new heterometallic tetranuclear nitrido clusters, namely [Ru3CoH(μ-H)(CO)6(Cp*){μ-η 2-C(OMe)O}(μ4-N)(μ-I)2] (2), [Ru3Co(μ-H)2(CO)6(Cp*){μ-η 2-C(OMe)O}(μ4-N)I(μ-I)] (3), [Ru3Co(μ-H)2(CO)6(Cp*){μ-η 2-C(OMe)O}(μ4-N)I(μ-I)] (4) and [Ru3Co(μ-H)2(CO)8(η5-C 5Me5)(μ4-N)(μ-I)] (5), together with a triruthenium nitrene cluster [Ru3(μ-H)3(CO)8(μ3-NOMe)I] (6) in moderate yields. The first four clusters have either a chain (2) or a spiked triangle (3-5) metal skeleton with the central nitrido atom capping all four metal atoms; alternatively, these four clusters can also be viewed as having a highly distorted butterfly arrangement. Clusters 2, 3 and 4 are isomers with different ligand dispositions. The hinge and an Ru-Ru wing-edge are missing in 2, whereas a wing-edge is lost in each of 3 and 4 (Ru-Ru) and 5 (Ru-Co). Opening up the hinge metal-metal bond has a significant effect upon the nitrido chemical shift in the 15N-NMR spectrum. Clusters 3 and 4 differ from each other in the coordination site of a terminal iodide ligand, and both clusters are inter-convertible under vigorous conditions. Cluster 6 is a trihydrido nitrene cluster with a terminal iodide ligand. 15N-NMR studies were performed in order to investigate the environment of the nitrogen atoms in these nitrido and nitrene clusters. © 2001 Elsevier Science B.V.
Persistent Identifierhttp://hdl.handle.net/10722/69868
ISSN
2015 Impact Factor: 2.336
2015 SCImago Journal Rankings: 0.732
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorHo, ENMen_HK
dc.contributor.authorWong, WTen_HK
dc.date.accessioned2010-09-06T06:17:34Z-
dc.date.available2010-09-06T06:17:34Z-
dc.date.issued2001en_HK
dc.identifier.citationJournal Of Organometallic Chemistry, 2001, v. 626 n. 1-2, p. 125-138en_HK
dc.identifier.issn0022-328Xen_HK
dc.identifier.urihttp://hdl.handle.net/10722/69868-
dc.description.abstractReaction of [Ru3(μ-H)2(CO)9(μ3-NOMe)] (1) with two equivalents of [Cp*Co(CO)I2] (Cp*=η5-C5Me5) in refluxing THF resulted in the isolation of four new heterometallic tetranuclear nitrido clusters, namely [Ru3CoH(μ-H)(CO)6(Cp*){μ-η 2-C(OMe)O}(μ4-N)(μ-I)2] (2), [Ru3Co(μ-H)2(CO)6(Cp*){μ-η 2-C(OMe)O}(μ4-N)I(μ-I)] (3), [Ru3Co(μ-H)2(CO)6(Cp*){μ-η 2-C(OMe)O}(μ4-N)I(μ-I)] (4) and [Ru3Co(μ-H)2(CO)8(η5-C 5Me5)(μ4-N)(μ-I)] (5), together with a triruthenium nitrene cluster [Ru3(μ-H)3(CO)8(μ3-NOMe)I] (6) in moderate yields. The first four clusters have either a chain (2) or a spiked triangle (3-5) metal skeleton with the central nitrido atom capping all four metal atoms; alternatively, these four clusters can also be viewed as having a highly distorted butterfly arrangement. Clusters 2, 3 and 4 are isomers with different ligand dispositions. The hinge and an Ru-Ru wing-edge are missing in 2, whereas a wing-edge is lost in each of 3 and 4 (Ru-Ru) and 5 (Ru-Co). Opening up the hinge metal-metal bond has a significant effect upon the nitrido chemical shift in the 15N-NMR spectrum. Clusters 3 and 4 differ from each other in the coordination site of a terminal iodide ligand, and both clusters are inter-convertible under vigorous conditions. Cluster 6 is a trihydrido nitrene cluster with a terminal iodide ligand. 15N-NMR studies were performed in order to investigate the environment of the nitrogen atoms in these nitrido and nitrene clusters. © 2001 Elsevier Science B.V.en_HK
dc.languageengen_HK
dc.publisherElsevier SA. The Journal's web site is located at http://www.elsevier.com/locate/jorganchemen_HK
dc.relation.ispartofJournal of Organometallic Chemistryen_HK
dc.subject15N-NMR spectroscopyen_HK
dc.subjectClusteren_HK
dc.subjectIodideen_HK
dc.subjectNitridoen_HK
dc.subjectRuthenium-cobalten_HK
dc.titleSynthesis, characterisation, crystal structures and reactivity of a series of ruthenium-cobalt mixed-metal nitrido carbonyl clusters with iodide ligandsen_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=0022-328X&volume=626&spage=125&epage=138&date=2001&atitle=Synthesis,+characterisation,+crystal+structures+and+reactivity+of+a+series+of+ruthenium-cobalt+mixed-metal+nitrido+carbonyl+clusters+with+iodide+ligandsen_HK
dc.identifier.emailWong, WT: wtwong@hku.hken_HK
dc.identifier.authorityWong, WT=rp00811en_HK
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1016/S0022-328X(01)00675-1en_HK
dc.identifier.scopuseid_2-s2.0-0038245309en_HK
dc.identifier.hkuros62648en_HK
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-0038245309&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume626en_HK
dc.identifier.issue1-2en_HK
dc.identifier.spage125en_HK
dc.identifier.epage138en_HK
dc.identifier.isiWOS:000168607600019-
dc.publisher.placeSwitzerlanden_HK
dc.identifier.scopusauthoridHo, ENM=7102724598en_HK
dc.identifier.scopusauthoridWong, WT=7403973084en_HK

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