Synthesis and Single Crystal X-ray Structures of Cationic Zinc -Diketiminate Complexes

被引:20
作者
Scheiper, Christoph [1 ]
Schulz, Stephan [1 ]
Woelper, Christoph [1 ]
Blaeser, Dieter [1 ]
Roll, Joachim [2 ]
机构
[1] Univ Duisburg Essen, Fac Chem, D-45141 Essen, Germany
[2] Westfal Hsch Univ Appl Sci, D-45665 Recklinghausen, Germany
来源
ZEITSCHRIFT FUR ANORGANISCHE UND ALLGEMEINE CHEMIE | 2013年 / 639卷 / 07期
关键词
Cations; Zinc; X-ray analysis; RING-OPENING POLYMERIZATION; LACTIDE POLYMERIZATION; ALUMINUM COMPLEXES; ALTERNATING COPOLYMERIZATION; COORDINATION CHEMISTRY; EPSILON-CAPROLACTONE; CATALYTIC-ACTIVITY; LIGANDS SYNTHESIS; MAGNESIUM; ALKOXIDE;
D O I
10.1002/zaac.201300119
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
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 degrees C.
引用
收藏
页码:1153 / 1159
页数:7
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