New Family of Weakly Coordinating Anions

Organonitrile ligated silver complexes with perfluorinated weakly coordinating anions and their catalytic application for coupling reactions

“…The potassium precursors of compounds 1-3 were prepared according to literature procedures. 18,22 [Ag(NCCH 3 . A white precipitate of KNO 3 began to form immediately.…”

Synthesis and Characterization of Imidazolium Salts with the Weakly Coordinating [B(C6F5)4]– Anion

“…Owing to the importance of WCAs both in fundamental and applied chemistry, a new class of WCAs has recently been developed. Robert et al reported the anions [(C 6 F 5 ) 3 M-LN-M(C 6 F 5 ) 3 ] − , with M = B or Al and the linking group LN being azide, dicyanamide, and imidazolide, which were found to be the most stable and effective activators for olefin polymerization reactions [8,9]. [CB 11 H 12 ] − and related carborane anions developed by Reed et al were applied in many systems, despite the expensive and time-consuming multistep procedure of their preparation [10].…”

Delicate Difference in Coordinating Nature between Copper(II) and Nickel(II) Ions. Structural Properties of Copper(II) and Nickel(II) Nitrate Containing 1,2-Bis(dimethyl-3-pyridylsilyl)ethane

“…[9][10][11][12][13] Thus, various kinds of framework materials have been constructed by the coordinations of metal ions with appropriate spacer ligands. 2,12,[14][15][16][17][18][19][20][21][22] The molecular geometry and flexibility of multidentate N-donor spacer ligands play indispensible roles in the development of the tailor-made molecular materials. Recently, we have demonstrated that various silicon-containing pyridyl spacers are useful for the synthesis of task-specific skeletal structures, [20][21][22][23] since the ligands have been known to be adjustable in their potential bridging ability, flexible interligand angles at silicon, and conformers, in addition to the inductive and steric effects of the silicon atom.…”