Mono- and dinuclear zirconocene(IV) amide complexes for the catalytic dehydropolymerisation of phenylsilane

被引：0

作者：

Lindenau, Kevin ^{[1
]}

Spannenberg, Anke ^{[1
]}

Reiss, Fabian ^{[1
]}

Beweries, Torsten ^{[1
]}

机构：

[1] Leibniz Inst Katalyse eV, Albert Einstein Str 29a, D-18059 Rostock, Germany

来源：

RSC ADVANCES | 2022年 / 12卷 / 40期

关键词：

BOND METATHESIS MECHANISM; DEHYDROCOUPLING POLYMERIZATION; SI-H; POLYSILANES; TITANOCENE; HYDROSILANES; METALLOCENES; SILANES; ROUTES; PHSIH3;

D O I：

10.1039/d2ra04955d

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The dehydropolymerisation of phenyEsiEane is investigated using group 4 metallocene amide complexes as catalysts. The dinuclear zirconocene amide complex Cp2Zr(NMe2)(mu-Me3SiC3SiMe3)Zr(NMe2)Cp-2 (2) (Cp = 115-cyclopentadienyl) shows high activity in dehydrocoupling reactions, producing poEyphenyEsdanes with molecular weights ranging from 200 to 3000 g moL(-1) and linear-to-cyclic product ratios of up to 80 : 20. Likewise, different ratios of oligomers and polymers with different tacticities could be described. Ansa-zirconocene amide complexes possessing the ebthi (ebthi = 1,2-ethyEene-1,1'-bis(eta(5)-tetrahydroindenyl)) ligand systems were prepared and evaluated for catalytic dehydropolymerisation in comparison to the dinuclear catalyst system.

引用

页码：26277 / 26283

页数：7

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