Synthesis and Single Crystal X‐ray Structures of Cationic Zinc β‐Diketiminate Complexes12. Issue 7 (15th May 2013) - Scheiper, Christoph
Abstract The cationic zinc complex [L1Zn][Al(OC(CF3)3)4] (1) (L1 = {[(2, 4, 6‐Me3–C6H2)NC(Me)]2CH}) bearing a weakly coordinating aluminate anion was obtained from reaction of L1ZnCl with Li[Al(OC(CF3)3)4]. In addition, base‐stabilized zinc cations [L1/2Zn(base)2][X] (2–5) (L2 = {[(2, 6‐iPr2–C6H3)NC(Me)]2CH}; X = [Al(OC(CF3)3)4], [B(C6F5)4]) containing weakly coordinating anions and different Lewis bases (dimethylaminopyridine (dmap), tert‐butylpyridine (tBuPy)) were synthesized and structurally characterized. Moreover, the solid‐state structures of L1ZnMe (6) and the neutral base‐stabilized complexes tBuPy‐Zn(Cl)L1 (7) and base‐Zn(Me)L2 (base = dmap 8, tBuPy 9) are reported and compared with those of 2–5. Preliminary studies showed that 1 is catalytically activity in lactide polymerization at 160 °C.