Details

Autor(en) / Beteiligte

• Fumagalli, Alessandro
• Malatesta, Maria Carlotta
• Tentori, Anna
• Monti, Diego
• Macchi, Piero
• Sironi, Angelo

Titel

Synthesis and Structural Characterization of the {[Rh5(CO)14]−(H2N(CH2)4NH2)−[Rh5(CO)14])}2- and [Rh5(CO)13(H2N(CH2)2NH2)]- Anions (as [PPh4]+ Salts):  An Unprecedented Example of Carbonyl Substitution by Alkylamines in a Homoleptic Metal Carbonyl Cluster Anion

Ist Teil von

• Inorganic chemistry, 2002-01, Vol.41 (1), p.76-85

Ort / Verlag

American Chemical Society

Erscheinungsjahr

2002

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• The substitution of one or two carbonyls by many different primary and secondary alkylamines and -diamines has been established for the first time in a homoleptic carbonyl cluster anion, the trigonal bipyramidal [Rh5(CO)15]-. Two derivatives, the bis-monosubstituted {[Rh5(CO)14]−(H2N(CH2)4NH2)−[Rh5(CO)14]}2- dianion (1) and the disubstituted chelated [Rh5(CO)13(H2N(CH2)2NH2)]- monoanion (2), have been structurally characterized, both in the solid state (as [PPh4]+ salts) and in solution, revealing that the sites of the substitution are the cluster apexes. 13C NMR spectra of 2 revealed localized fluxionality of the CO ligands over the temperature range 298−183 K.