Dimethyl(2-methylphenyl)ammonium hydroxotris(pentafluorophenyl)borate

Abstract

In the title compound, [(CH(3))(2)(C(7)H(7))NH][(C(6)F(5))(3)B(OH)] or C(9)H(14)N(+).C(18)HBF(15)O(-), the distorted tetrahedral borate anions are strongly hydrogen bonded to the substituted ammonium cations. The N.O separation in the N-H.O hydrogen bond is 2.728 (3) A.

Stable Borane Adducts of Alcoholates and Carboxylates

“…On the other hand, complexes of the conjugate base anions, namely carboxylates and phosphinates with B(C 6 F 5 ) 3 are also stable as demonstrated by the isolation and full characterization of the complex anions [ R CO 2 · B(C 6 F 5 ) 3 ] – ( R = H; R = Me), [RCO 2 · 2B(C 6 F 5 ) 3 ] –[20] and [Ph 2 PO 2 · B(C 6 F 5 ) 3 ] – , respectively. This stability compliments a large number of stable adducts between inorganic anions and B(C 6 F 5 ) 3 including 1:1 complexes [ X · B(C 6 F 5 ) 3 ] – ( X = H, OH,, , F, Cl,, PhNH, PhS, CN, SCN, NO 3 , [HSO 3 ,, ) as well as 1:2 complexes [ X · 2 B(C 6 F 5 ) 3 ] – ( X = OH,, NH 2 , PH 2 , CN,, ) and [ X · 2 B(C 6 F 5 ) 3 ] 2– ( X = O, SO 4 ), respectively. In this context, the neutral donor‐acceptor complex (C 6 F 5 ) 3 B · N(H)SO needs to be also mentioned .…”

Ring-Opening Reactions of Nonactivated Aziridines Catalyzed by Tris(pentafluorophenyl)borane

“…The C−F bonds vary from 1.345(4) to 1.376(5) Å, the C−C bonds vary from 1.362(6) to 1.393(5) Å, and the B−C bonds vary from 1.651(5) to 1.655(5) Å. The bond lengths contained in this structure are similar to those found in a number of other ammonium hydroxoborate compounds. , …”

2,5,8,11-Tetramethyl-2,5,8,11-tetraazadodecane-2,11-diium bis[hydroxytris(pentafluorophenyl)borate] benzene 2.5-solvate

“…As a strong Lewis acid, it readily forms salts with bases such as amines. A search of the Cambridge Structural Database (CSD version 5.41, November 2019; Groom et al, 2016) for structures containing amine salts of hydroxy [tris-(pentafluorophenyl)]borate gave 13 hits [DOJSAX (Peters et al, 2008); GIZZIZ ; ITULOA (Tao et al, 2016); KERLUO (Duchateau et al, 2000); MUQMUG (Drewitt et al, 2002); OFAFUZ (Schneider et al, 2018); OZUBUH (Kelsen et al, 2011); PEGCUA (Focante, Camurati et al, 2006); QIMKUS (Stibrany & Brant, 2001); RAQWAI (Saverio et al, 2005); SEFDIR (Hewavitharanage et al, 2005); UXIJIW, UXIJUI (Thakur et al, 2016)]. However, there were no hits for the dication.…”