Poly(iminoborane)s: An Elusive Class of Main-Group Polymers?

被引：62

作者：

Ayhan, Ozan ^{[1
]}

Eckert, Thomas ^{[2
]}

Plamper, Felix A. ^{[2
]}

Helten, Holger ^{[1
]}

机构：

[1] Rhein Westfal TH Aachen, Inst Anorgan Chem, Landoltweg 1, D-52056 Aachen, Germany

[2] Rhein Westfal TH Aachen, Inst Phys Chem, Landoltweg 2, D-52056 Aachen, Germany

来源：

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION | 2016年 / 55卷 / 42期

关键词：

B-N bonds; boron; hybrid materials; inorganic polymers; main-group polymers; 1,3,2-DIAZABORACYCLOHEXANE RING-SYSTEM; MOLECULAR-WEIGHT POLYAMINOBORANES; HYDROGEN STORAGE MATERIAL; BORON-NITROGEN BONDS; B-11; MAS-NMR; THERMAL-DECOMPOSITION; AMMONIA-BORANE; BORATION COPOLYMERIZATION; CONJUGATED POLYMERS; ELECTRON-DEFICIENT;

D O I：

10.1002/anie.201607131

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The significance of inorganic main-group polymers is demonstrated most clearly by the commercial relevance of polysiloxanes (silicones). Organoboron-based materials such as p-conjugated organoborane polymers and BN-doped polycyclic aromatic hydrocarbons are currently attracting considerable attention. Surprisingly, poly(iminoborane)s (PIBs; [BRNR'](n)), that is, the parent unsaturated BN polymers, which are formally isoelectronic to polyacetylene, have not been convincingly characterized thus far. Herein, we present the synthesis and comprehensive characterization of a linear oligo(iminoborane), which comprises a chain of 12-14 BN units on average. With our synthetic approach, unwanted side reactions that result in borazine formation are effectively suppressed. Supporting DFT and TD-DFT calculations provide deeper insight into the microstructure and the electronic structure of the oligomer.

引用

页码：13321 / 13325

页数：5

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