Interactions in crystals.: 139.: Biphenylene ring expansion by a (H3C)2Si link from silicone grease as proven by the crystal structures of [(sodium+[2.2.1]cryptand)(9,9-dimethylsilafluorene•-)] as well as [sodium+(triglyme)2(biphenylene•-)] and by total-reflection X-ray fluroescence spectrometry (TXRF)

被引：29

作者：

Bock, H ^{[1
]}

Sievert, M ^{[1
]}

Bogdan, CL ^{[1
]}

Kolbesen, BO ^{[1
]}

Wittershagen, A ^{[1
]}

机构：

[1] Univ Frankfurt, Inst Inorgan Chem, D-60439 Frankfurt, Germany

来源：

ORGANOMETALLICS | 1999年 / 18卷 / 12期

关键词：

D O I：

10.1021/om9807304

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Sodium metal mirror reduction of biphenylene in aprotic THF solution, containing [2.2.1]cryptand yields as a structurally characterized product the 9,9-dimethylsilafluorene radical anion salt containing a (H3C)(2)Si expanded cyclobutadiene ring. In addition, the Si content cart be detected by total reflection X-ray (TXRF) analysis. When the use of any silicon grease was avoided for all glass fittings, the solvent-separated biphenylene radical anion contact pair crystallized from an aprotic diglyme solution.

引用

页码：2387 / 2389

页数：3

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