title: Functional Short-Bite Ligands: Synthesis, Coordination Chemistry, and Applications of N-Functionalized Bis(diaryl/dialkylphosphino)amine-type Ligands.
abstract: The aim of this review is to highlight how the diversity generated by N-substitution in the well-known short-bite ligand bis(diphenylphosphino)amine (DPPA) allows a fine-tuning of the ligand properties and offers a considerable scope for tailoring the properties and applications of their corresponding metal complexes. The various N-substituents include nitrogen-, oxygen-, phosphorus-, sulfur-, halogen-, and silicon-based functionalities and directly N-bound metals. Multiple DPPA-type ligands linked through an organic spacer and N-functionalized DRPA-type ligands, in which the PPh2 substituents are replaced by PR2 (R = alkyl, benzyl) groups, are also discussed. Owing to the considerable diversity of N-functionalized DPPA-type ligands available, the applications of their mono- and polynuclear metal complexes are very diverse and range from homogeneous catalysis with well-defined or in situ generated (pre)catalysts to heterogeneous catalysis and materials science. In particular, sustained interest for DPPA-type ligands has been motivated, at least in part, by their ability to promote selective ethylene tri- or tetramerization in combination with chromium. Ligands and metal complexes where the N-substituent is a pure hydrocarbon group (as opposed to N-functionalization) are outside the scope of this review. However, when possible, a comparison between the catalytic performances of N-functionalized systems with those of their N-substituted analogs will be provided.
authors.affiliation: Laboratoire de Chimie de Coordination, Institut de Chimie (UMR 7177 CNRS), Université de Strasbourg , 4 Rue Blaise Pascal, CS 90032, 67081 Strasbourg, France.|Laboratoire de Chimie de Coordination (LCC), CNRS-UPR 8241, 205 Route de Narbonne, Toulouse F-31077 Cedex 4, France.
authors.forename: Christophe
authors.initials: C
authors.lastname: Fliedel
authors.affiliation: Laboratoire de Chimie de Coordination, Institut de Chimie (UMR 7177 CNRS), Université de Strasbourg , 4 Rue Blaise Pascal, CS 90032, 67081 Strasbourg, France.
authors.forename: Alessio
authors.initials: A
authors.lastname: Ghisolfi
authors.affiliation: Laboratoire de Chimie de Coordination, Institut de Chimie (UMR 7177 CNRS), Université de Strasbourg , 4 Rue Blaise Pascal, CS 90032, 67081 Strasbourg, France.
authors.forename: Pierre
authors.initials: P
authors.lastname: Braunstein
mesh_terms: D002384:Catalysis; D056831:Coordination Complexes / Q000138:chemical synthesis* / Q000737:chemistry; D007536:Isomerism; D008024:Ligands; D010720:Phosphines / Q000138:chemical synthesis* / Q000737:chemistry; D058105:Polymerization
chemical_list: D056831:Coordination Complexes; D008024:Ligands; D010720:Phosphines