Gold(III) adducts of 2-vinyl- and 2-ethylpyridine and cyclometallated derivatives of 2-vinylpyridine: Crystal structure of the cyclometallated derivative [Au(k(2)-C,N-CH(2)CH(Cl)-C(5)H(4)N)(PPh(3))Cl][PF(6)] RID D-3096-2011
Articolo
Data di Pubblicazione:
2009
Citazione:
Gold(III) adducts of 2-vinyl- and 2-ethylpyridine and cyclometallated derivatives of 2-vinylpyridine: Crystal structure of the cyclometallated derivative [Au(k(2)-C,N-CH(2)CH(Cl)-C(5)H(4)N)(PPh(3))Cl][PF(6)] RID D-3096-2011 / Cinellu, Maria Agostina; Cocco, Fabio; Minghetti, G; Stoccoro, Sergio; Zucca, Antonio; Manassero, M.. - In: JOURNAL OF ORGANOMETALLIC CHEMISTRY. - ISSN 0022-328X. - 694:18(2009), pp. 2949-2955. [10.1016/j.jorganchem.2009.04.031]
Abstract:
Reaction of Na[AuCl4] with 2-vinylpyridine (vinpy) and 2-ethylpyridine (etpy) affords the N-bonded
adducts Au(Rpy)Cl3 (R = CH2@CH, vinpy; CH3CH2, etpy). Cationic adducts, [Au(vinpy)2Cl][X]2 (X = BF4,
PF6) and [Au(etpy)2Cl2][BF4], were also obtained by reaction of Au(Rpy)Cl3 with Rpy (1:1) and excess
NaBF4 or KPF6. Thermal activation of Au(vinpy)Cl3 in water gives the five-membered cycloaurated derivative
[Au(k2-C,N–CH2CH(Cl)–C5H4N)Cl2] formally resulting through a trans nucleophilic addition of a
chloride onto the C@C bond. No cyclometallated derivatives are obtained by reactions of Au(etpy)Cl3.
An X-ray crystal structure determination on the PPh3 derivative [Au(k2-C,N–CH2CH(Cl)–C5H4N)(PPh3)Cl]
[PF6] was carried out.
adducts Au(Rpy)Cl3 (R = CH2@CH, vinpy; CH3CH2, etpy). Cationic adducts, [Au(vinpy)2Cl][X]2 (X = BF4,
PF6) and [Au(etpy)2Cl2][BF4], were also obtained by reaction of Au(Rpy)Cl3 with Rpy (1:1) and excess
NaBF4 or KPF6. Thermal activation of Au(vinpy)Cl3 in water gives the five-membered cycloaurated derivative
[Au(k2-C,N–CH2CH(Cl)–C5H4N)Cl2] formally resulting through a trans nucleophilic addition of a
chloride onto the C@C bond. No cyclometallated derivatives are obtained by reactions of Au(etpy)Cl3.
An X-ray crystal structure determination on the PPh3 derivative [Au(k2-C,N–CH2CH(Cl)–C5H4N)(PPh3)Cl]
[PF6] was carried out.
Tipologia CRIS:
1.1 Articolo in rivista
Keywords:
Gold(III) compounds; Cyclometalated complexes; alkene activation
Elenco autori:
Cinellu, Maria Agostina; Cocco, Fabio; Minghetti, G; Stoccoro, Sergio; Zucca, Antonio; Manassero, M.
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