Ethylene Oxide and Propylene Sulfide Complexes of Silver(I):  Synthesis and Characterization of [HB(3,5-(CF₃)₂Pz)₃]Ag(OC₂H₄) and [HB(3,5-(CF₃)₂Pz)₃]Ag(SC₃H₆)

Abstract

The synthesis and solid-state structures of [HB(3,5-(CF3)2Pz)3]Ag(OC2H4) and [HB(3,5-(CF3)2Pz)3]Ag(SC3H6) are presented. The propylene sulfide ligand shows a relatively large tilt toward the [HB(3,5-(CF3)2Pz)3]Ag moiety compared to the ethylene oxide ligand. [HB(3,5-(CF3)2Pz)3]Ag(OC2H4) and [HB(3,5-(CF3)2Pz)3]Ag(SC3H6) are rare examples of compounds featuring metal−epoxide and metal−thiirane bonding.

Synthesis and structure of mono-, bi- and trimetallic amine-bis(phenolate) cobalt(ii) complexes

“…Structurally characterized adducts of propylene oxide and other epoxides with a range of other metals have been reported. [96][97][98][99][100] In this context, the only M-phenolate complexes containing epoxides in the coordination sphere are Cd II and Zn II species. 98 In these complexes, M-O ether bond distances are between 2.301(5) A ˚and 2.357(2) A ˚for Cd complexes and an average of 2.108(3) A ˚for the Zn species.…”

Isolable Ethylene Complexes of Copper(I), Silver(I), and Gold(I) Supported by Fluorinated Scorpionates [HB{3‐(CF3),5‐(CH3)Pz}3]– and [HB{3‐(CF3),5‐(Ph)Pz}3]–

“…There are several additional applications involving fluorinated tris(pyrazolyl)borates as well (e.g., model active sites of enzymes and to develop catalysts to mediate other processes like oxidation) . Fluorinated ligands like [HB{3,5‐(CF 3 ) 2 Pz} 3 ] – have also permitted us to isolate a range of rare group 11 metal adducts (e.g., involving CO, 1 ‐azidoadamantane, ethylene oxide, propylene sulfide, dimethyl diazomalonate , Sn II and Ge II species), as well as to prepare compounds with good antimicrobial properties . [HB{3,5‐(CF 3 ) 2 Pz} 3 ]CuCO shows relatively high oxidative stability compared to [HB{3,5‐(CH 3 ) 2 Pz} 3 ]CuCO.…”

Copper(I) Ethylene Adducts and Aziridination Catalysts Based on Fluorinated Tris(pyrazolyl)borates [HB(3-(CF3),5-(R)Pz)3]- (where R = CF3, C6H5, H; Pz = pyrazolyl)

“…Interestingly, very little is known about the fluorinated versions of one of the most widely used ligands in chemistry, the poly(pyrazolyl)borates . Over the past few years, we and others have reported the synthesis and/or uses of several poly(pyrazolyl)borates containing fluoroalkyl substituents. ,,− The ligands we have reported include [H 2 B(3,5-(CF 3 ) 2 Pz) 2 ] - , [HB(3-(CF 3 )Pz) 3 ] - , [HB(3-(C 2 F 5 )Pz) 3 ] - , [HB(3-(C 3 F 7 )Pz) 3 ] - , and [HB(3,5-(CF 3 ) 2 Pz) 3 ] - . , Their metal adducts show very interesting properties. For example, ν CO of [HB(3,5-(CF 3 ) 2 Pz) 3 ]CuCO is the highest observed for a tris(pyrazolyl)boratocopper(I) complex, and it is about 71 cm -1 higher than that of the methylated analogue [HB(3,5-(CH 3 ) 2 Pz) 3 ]CuCO. , Furthermore, unlike the air sensitive [HB(3,5-(CH 3 ) 2 Pz) 3 ]CuCO, the fluorinated analogue [HB(3,5-(CF 3 ) 2 Pz) 3 ]CuCO is an air stable solid.…”

“…Thermally stable silver or gold carbonyls are exceedingly rare, and such complexes are unknown with any other tris(pyrazolyl)borate ligand. Structurally characterized silver adducts containing ethylene, acetylene, organic azides, diazo compounds (e.g., dimethyldiazomalonate), ethylene oxide, and chloro germanium species 15 to date are only known for [HB(3,5-(CF 3 ) 2 Pz) 3 ] - systems.…”