In spiteof the fact that -diketones represent one of the oldest classes of chelating ligands, their coordination chemistry continues to attract much interest, due to recent industrial applications of several of their metal derivatives. An exhaustive review of -diketones, dealing mainly with structural chemistry and reactivity of most of the metal -diketonates reported up to 1982, was included in the first edition of Comprehensive Coordination Chemistry CCC (1987).1 Since that time a large number of papers have appeared on new functionalized -diketone ligands, and on the potential applications of their metal derivatives in new fields of technology. However, well-known -diketones—such as acacH (acacH¼2,4-pentanedione); bzacH (bzacH¼1-phenyl-1, 3-butanedione); dbzmH (dbzmH¼1,3-diphenyl-1,3-propanedione); tmhdH (tmhdH¼2,2,6,6- tetramethyl-3,5-heptanedione); tfacH (tfacH¼1,1,1-trifloro-2,4-pentanedione); and hfacH (hfacH¼1,1,1,5,5,5-hexafluoro-2,4-pentanedione)—also continue to play a key role as ligands of choice in the stabilization of otherwise unstable metallic or organometallic derivatives, or in the modulation of particular structural and/or physico-chemical properties of their metal complexes. In this review we provide essential information to allow the reader to probe more deeply into the main aspects of the coordination chemistry of these fascinating and apparently simple donor ligands.
beta-Diketones and Related Ligands
PETTINARI, Claudio;MARCHETTI, Fabio;
2003-01-01
Abstract
In spiteof the fact that -diketones represent one of the oldest classes of chelating ligands, their coordination chemistry continues to attract much interest, due to recent industrial applications of several of their metal derivatives. An exhaustive review of -diketones, dealing mainly with structural chemistry and reactivity of most of the metal -diketonates reported up to 1982, was included in the first edition of Comprehensive Coordination Chemistry CCC (1987).1 Since that time a large number of papers have appeared on new functionalized -diketone ligands, and on the potential applications of their metal derivatives in new fields of technology. However, well-known -diketones—such as acacH (acacH¼2,4-pentanedione); bzacH (bzacH¼1-phenyl-1, 3-butanedione); dbzmH (dbzmH¼1,3-diphenyl-1,3-propanedione); tmhdH (tmhdH¼2,2,6,6- tetramethyl-3,5-heptanedione); tfacH (tfacH¼1,1,1-trifloro-2,4-pentanedione); and hfacH (hfacH¼1,1,1,5,5,5-hexafluoro-2,4-pentanedione)—also continue to play a key role as ligands of choice in the stabilization of otherwise unstable metallic or organometallic derivatives, or in the modulation of particular structural and/or physico-chemical properties of their metal complexes. In this review we provide essential information to allow the reader to probe more deeply into the main aspects of the coordination chemistry of these fascinating and apparently simple donor ligands.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
