Crystal structures of the Lewis acid–base adducts {[(C(6)H(11))(2)N](3)Ti–LB}(+)[MeB(C(6)F(5))(3)](−)·1.5C(7)H(8); LB = (C(6)H(5))(3)PO (1), p-F—C(6)H(4)CN (2)

The reaction of [(C(6)H(11))(2)N](3)Ti—CH(3) with the Lewis acid B(C(6)F(5))(3), followed by addition of the Lewis bases (C(6)H(5))(3)PO and p-F—C(6)H(4)CN led to the complex salts tris­(di­cyclo­hexyl­amido)(tri­phenyl­phosphine oxide)titanium methyl­tris(penta­fluoro­phen­yl)borate toluene sesquisolvate, [Ti(C(12)H(22)N)(3)(C(18)H(15)OP)](C(19)H(3)F(15)B)·1.5C(7)H(8), (1), and tris­(di­cyclo­hexyl­amido)(4-fluoro­benzo­nitrile)­titanium methyl­tris­(penta­fluoro­phen­yl)borate toluene sesquisolvate, [Ti(C(12)H(22)N)(3)(C(7)H(4)FN)](C(19)H(3)F(15)B)·1.5C(7)H(8), (2), both crystallizing with 1.5 equivalents of toluene solvent mol­ecules. The Lewis acid–base adducts (1) and (2) can be described by dative donor bonds. The packing of the complex cations, anions and solvent mol­ecules in the crystal structure is consolidated by an intricate three-dimensional network of non-classical C—H⋯F inter­actions. Disorder of some of the cyclo­hexyl groups and the toluene solvent mol­ecules is observed.