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Article: Reactivities of π-electron-rich phosphorus-nitrogen ligands toward Groups VIB and VIIB metal carbonyl complexes

TitleReactivities of π-electron-rich phosphorus-nitrogen ligands toward Groups VIB and VIIB metal carbonyl complexes
Authors
KeywordsChromium
Molybdenum
Manganese
Rhenium
Carbonyl
Issue Date2000
PublisherElsevier SA. The Journal's web site is located at http://www.elsevier.com/locate/jorganchem
Citation
Journal of Organometallic Chemistry, 2000, v. 612 n. 1-2, p. 160-171 How to Cite?
AbstractThe interaction of (Ph2PN=)C(Ph)[N(SiMe3)2] (L1) with one equivalent of Mn(CO)5Br afforded cis-Mn(CO)4Br- {(Ph2PN=)C(Ph)[N(SiMe3)2]} (1), which upon boiling in THF gave fac-Mn(CO)3Br[(Ph2PNH)C(Ph)(=NSiMe3)] (2), and with one equivalent of Re(CO)5X (X Br or Cl) gave fac-Re(CO)3X[(Ph2PNH)C(Ph)(=NH)] [X Br (3) or Cl (4)] in good yield. Reaction of 1,4-C6H4{C(=NPPh2)[N(SiMe3)2]}2 (L2) with two equivalents of Mn(CO)5Br gave the symmetric dimer [cis- Mn(CO)4Br]2{(Ph2PN=)[N(SiMe3)2]C}2C6H4-1,4 (5), and with two equivalents of Re(CO)5Br gave the cyclic dimer cyclo-[ fac- (Me2NCHO)Re(CO)3(m-Ph2PO2)]2 (6) upon recrystallization in DMF. Treatment of (NC5H4){(Ph2PN=)C[N(SiMe3)2]}-4 (L3) with one equivalent of (nbd)M(CO)4 (M Mo or Cr, nbd norbornadiene) in THF produced cis-M(CO)4{(NC5H4)- [(Ph2PNH)C(=NSiMe3)]-4} [M Mo (7) or Cr (8)], and with excess Mn(CO)5Br led to the trinuclear complex fac-{cis- Mn(CO)4Br[(NC5H4){(Ph2PN=)C[N(SiMe3)2]}-4]}2Mn(CO)3Br (9) in good yield. Compound 7, in the presence of CdCl2, hydrolyzed to cis-Mo(CO)4{(NC5H4)[(Ph2PNH)C(=NH)]-4} (10). Compound 8 reacted with half an equivalent of Mn(CO)5Br to give the trinuclear complex fac-[cis-Cr(CO)4{(NC5H4)[(Ph2PNH)C(=NSiMe3)]-4}]2Mn(CO)3Br (11). All the new compounds were characterized by spectroscopic and analytical methods and the structures of compounds 1, 3, 6, 9 and 10 were established by X-ray crystallography. © 2000 Elsevier Science B.V. All rights reserved.
Persistent Identifierhttp://hdl.handle.net/10722/69042
ISSN
2015 Impact Factor: 2.336
2015 SCImago Journal Rankings: 0.732
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorWong, WYen_HK
dc.contributor.authorWong, WKen_HK
dc.contributor.authorSun, Cen_HK
dc.contributor.authorWong, WTen_HK
dc.date.accessioned2010-09-06T06:10:01Z-
dc.date.available2010-09-06T06:10:01Z-
dc.date.issued2000en_HK
dc.identifier.citationJournal of Organometallic Chemistry, 2000, v. 612 n. 1-2, p. 160-171en_HK
dc.identifier.issn0022-328Xen_HK
dc.identifier.urihttp://hdl.handle.net/10722/69042-
dc.description.abstractThe interaction of (Ph2PN=)C(Ph)[N(SiMe3)2] (L1) with one equivalent of Mn(CO)5Br afforded cis-Mn(CO)4Br- {(Ph2PN=)C(Ph)[N(SiMe3)2]} (1), which upon boiling in THF gave fac-Mn(CO)3Br[(Ph2PNH)C(Ph)(=NSiMe3)] (2), and with one equivalent of Re(CO)5X (X Br or Cl) gave fac-Re(CO)3X[(Ph2PNH)C(Ph)(=NH)] [X Br (3) or Cl (4)] in good yield. Reaction of 1,4-C6H4{C(=NPPh2)[N(SiMe3)2]}2 (L2) with two equivalents of Mn(CO)5Br gave the symmetric dimer [cis- Mn(CO)4Br]2{(Ph2PN=)[N(SiMe3)2]C}2C6H4-1,4 (5), and with two equivalents of Re(CO)5Br gave the cyclic dimer cyclo-[ fac- (Me2NCHO)Re(CO)3(m-Ph2PO2)]2 (6) upon recrystallization in DMF. Treatment of (NC5H4){(Ph2PN=)C[N(SiMe3)2]}-4 (L3) with one equivalent of (nbd)M(CO)4 (M Mo or Cr, nbd norbornadiene) in THF produced cis-M(CO)4{(NC5H4)- [(Ph2PNH)C(=NSiMe3)]-4} [M Mo (7) or Cr (8)], and with excess Mn(CO)5Br led to the trinuclear complex fac-{cis- Mn(CO)4Br[(NC5H4){(Ph2PN=)C[N(SiMe3)2]}-4]}2Mn(CO)3Br (9) in good yield. Compound 7, in the presence of CdCl2, hydrolyzed to cis-Mo(CO)4{(NC5H4)[(Ph2PNH)C(=NH)]-4} (10). Compound 8 reacted with half an equivalent of Mn(CO)5Br to give the trinuclear complex fac-[cis-Cr(CO)4{(NC5H4)[(Ph2PNH)C(=NSiMe3)]-4}]2Mn(CO)3Br (11). All the new compounds were characterized by spectroscopic and analytical methods and the structures of compounds 1, 3, 6, 9 and 10 were established by X-ray crystallography. © 2000 Elsevier Science B.V. All rights reserved.-
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.subjectChromium-
dc.subjectMolybdenum-
dc.subjectManganese-
dc.subjectRhenium-
dc.subjectCarbonyl-
dc.titleReactivities of π-electron-rich phosphorus-nitrogen ligands toward Groups VIB and VIIB metal carbonyl complexesen_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=0022-328X&volume=612&spage=160&epage=171&date=2000&atitle=Reactivities+of+p-electron-rich+phosphorus-nitrogen+ligands+toward+Groups+VIB+and+VIIB+metal+carbonyl+complexesen_HK
dc.identifier.emailWong, WT: wtwong@hku.hken_HK
dc.identifier.authorityWong, WT=rp00811en_HK
dc.identifier.doi10.1016/S0022-328X(00)00475-7-
dc.identifier.hkuros56698en_HK
dc.identifier.issue1-2-
dc.identifier.isiWOS:000165546300018-

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