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Titolo:
Complexes of phosphine-phenolate ligands with the [Re=O](3+) and [Re(HNNC5H4N)(NNC5H4N)](2+) cores
Autore:
Kovacs, MS; Hein, P; Sattarzadeh, S; Patrick, BO; Emge, TJ; Orvig, C;
Indirizzi:
Univ British Columbia, Dept Chem, Med Inorgan Chem Grp, Vancouver, BC V6T 1Z1, Canada Univ British Columbia Vancouver BC Canada V6T 1Z1 ver, BC V6T 1Z1, Canada Rutgers State Univ, Dept Chem, Piscataway, NJ 08854 USA Rutgers State Univ Piscataway NJ USA 08854 Chem, Piscataway, NJ 08854 USA
Titolo Testata:
JOURNAL OF THE CHEMICAL SOCIETY-DALTON TRANSACTIONS
fascicolo: 20, , anno: 2001,
pagine: 3015 - 3024
SICI:
1472-7773(2001):20<3015:COPLWT>2.0.ZU;2-3
Fonte:
ISI
Lingua:
ENG
Soggetto:
IIB/IIIA-RECEPTOR ANTAGONIST; WATER-SOLUBLE PHOSPHINES; X-RAY STRUCTURE; MOLECULAR-STRUCTURES; CHELATE COMPLEXES; CRYSTAL-STRUCTURE; TECHNETIUM RADIOPHARMACEUTICALS; COORDINATION-COMPOUNDS; RHENIUM; TC-99M;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Citazioni:
62
Recensione:
Indirizzi per estratti:
Indirizzo: Orvig, C Univ British Columbia, Dept Chem, Med Inorgan Chem Grp, 2036 MainMall, Vancouver, BC V6T 1Z1, Canada Univ British Columbia 2036 Main Mall Vancouver BC Canada V6T 1Z1
Citazione:
M.S. Kovacs et al., "Complexes of phosphine-phenolate ligands with the [Re=O](3+) and [Re(HNNC5H4N)(NNC5H4N)](2+) cores", J CHEM S DA, (20), 2001, pp. 3015-3024

Abstract

Complexes incorporating the [Re=O](3+) core have been synthesised with ligands containing the new methyl substituted phosphine-phenolate PO and PO2 donor sets, (2-hydroxy-5-methylphenyl) diphenylphosphine (H(MePO)) and bis(2-hydroxy-5-methylphenyl) phenylphosphine (H-2(Me2PO2)). The analogous tert-butyl ligands, (5-tert-butyl-2-hydroxyphenyl)diphenylphosphine (H(t-BuPO)) and bis(5-tert-butyl-2-hydroxyphenyl) phenylphosphine (H-2 (t-Bu2PO2)), were also prepared. Reaction of either mer-[ReOCl3 (PPh3)(2)] or [NH4][ReO4] in CH3OH with H(MePO) led to formation of [ReOCl(MePO)(2)] (1) in good yield. Reaction of [NH4][ReO4] with H-2 (Me2PO2) in CH3OH afforded [ReO(Me2PO2)(H(Me2PO2))] (2), also in good yield. X-Ray crystallographic analyses of 1 and 2 demonstrated that both complexes are neutral and octahedral, and contain the oxo moiety. Two complexes have been structurally characterised from the reaction of (o-hydroxyphenyl) diphenylphosphine (HPO) with [Re(Hhypy)(hypyH)Cl-3]: [Re(Hhypy)(hypy)(PO)(HPO)]Cl (3) and [ReCl(Hypy)(hypy)(PO)] (4)(hypy = NNC5H4N, Hhypy = HNNC5H4N, hypyH = NNC5H4NH). X-Ray crystallography demonstrated that both are Re(III) complexes; 3 is monocationic with an N3OP2 coordination sphere while 4 is neutral with a ClN3OP coordination sphere. [Re(Hhypy)(hypy)(HPO2)(H2PO2)] Cl (5) and [Re(Hhypy)(hypy)(H(Me2PO2))(H-2 (Me2PO2))] Cl (6) were synthesised by reaction of [Re(Hhypy)(hypyH)Cl-3]in CH3OH with bis(o-hydroxyphenyl) phenylphosphine (H2PO2) and H-2(Me2PO2)respectively. Compounds 5 and 6 were shown by H-1 and P-31 NMR spectroscopies to have the same N3OP2 coordination sphere as [Re(Hhypy)(hypy)(PO)(HPO)] Cl, with the addition of several uncoordinated, protonated phenolic donors.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 01/12/20 alle ore 00:18:47