The reactivity of a series of gold(III) adducts [Au(HL)Cl3] 1a–4a with 6-alkyl-2,29-bipyridines HL (N2C10H7R, R = CH2Me 1, CHMe2 2, CMe3 3 and CH2CMe3 4) has been studied. The reactions of 1a–4a with silver(I) ions or MeCO2Na afford cationic complexes [Au2(HL)2(m-O)2]21 1b–4b (as BF4 or PF6 salts) having the gold atom bonded to the nitrogen atoms of the bipyridine and to two oxygen atoms. The crystal structure of 4b[PF6]2, solved by X-ray diffraction, shows that the cation is a centrosymmetric dimer with two oxo (O22) groups bridging two [Au{N2C10H7(CH2CMe3)-6}] moieties. In the case of 2a, besides the oxo species, mononuclear ionic derivatives [Au(L*)Cl]1 2*c [HL* = N2C10H7(CMe2OH)-6; BF4, PF6 or AuCl4 salts] have been isolated. The latter complexes contain an unexpected Au]O bond. The spectroscopic data and the crystal structure of 2*c[AuCl4] indicate a tridentate N,N,O behaviour of the ligand which forms a [5,5]-fused ring system.

m-Oxo and alkoxo complexes of gold(III) with 6-alkyl-2,2’-bipiridines. Synthesis, characterization and X-ray structures / Cinellu, Maria Agostina; Minghetti, G; PINNA M., V; Stoccoro, S; Zucca, A; Manassero, M; Sansoni, M.. - In: JOURNAL OF THE CHEMICAL SOCIETY DALTON TRANSACTIONS. - ISSN 0300-9246. - (1998), pp. 1735-1741.

m-Oxo and alkoxo complexes of gold(III) with 6-alkyl-2,2’-bipiridines. Synthesis, characterization and X-ray structures

CINELLU, Maria Agostina;STOCCORO S;ZUCCA A;
1998

Abstract

The reactivity of a series of gold(III) adducts [Au(HL)Cl3] 1a–4a with 6-alkyl-2,29-bipyridines HL (N2C10H7R, R = CH2Me 1, CHMe2 2, CMe3 3 and CH2CMe3 4) has been studied. The reactions of 1a–4a with silver(I) ions or MeCO2Na afford cationic complexes [Au2(HL)2(m-O)2]21 1b–4b (as BF4 or PF6 salts) having the gold atom bonded to the nitrogen atoms of the bipyridine and to two oxygen atoms. The crystal structure of 4b[PF6]2, solved by X-ray diffraction, shows that the cation is a centrosymmetric dimer with two oxo (O22) groups bridging two [Au{N2C10H7(CH2CMe3)-6}] moieties. In the case of 2a, besides the oxo species, mononuclear ionic derivatives [Au(L*)Cl]1 2*c [HL* = N2C10H7(CMe2OH)-6; BF4, PF6 or AuCl4 salts] have been isolated. The latter complexes contain an unexpected Au]O bond. The spectroscopic data and the crystal structure of 2*c[AuCl4] indicate a tridentate N,N,O behaviour of the ligand which forms a [5,5]-fused ring system.
m-Oxo and alkoxo complexes of gold(III) with 6-alkyl-2,2’-bipiridines. Synthesis, characterization and X-ray structures / Cinellu, Maria Agostina; Minghetti, G; PINNA M., V; Stoccoro, S; Zucca, A; Manassero, M; Sansoni, M.. - In: JOURNAL OF THE CHEMICAL SOCIETY DALTON TRANSACTIONS. - ISSN 0300-9246. - (1998), pp. 1735-1741.
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11388/77831
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