Exo-π-bonding to an ortho-carborane hypercarbon atom:: systematic icosahedral cage distortions reflected in the structures of the fluoro-, hydroxy- and amino-carboranes, 1-X-2-Ph-1,2C2B10H10 (X = F, OH or NH2) and related anions

被引：102

作者：

Boyd, LA

Clegg, W

Copley, RCB

Davidson, MG

Fox, MA

Hibbert, TG

Howard, JAK

Mackinnon, A

Peace, RJ

Wade, K

机构：

[1] Univ Durham, Dept Chem, Sci Labs, Durham DH1 3LE, England

[2] Newcastle Univ, Sch Nat Sci Chem, Newcastle Upon Tyne NE1 7RU, Tyne & Wear, England

[3] Univ Bath, Dept Chem, Bath BA2 7AY, Avon, England

来源：

DALTON TRANSACTIONS | 2004年 / 17期

关键词：

D O I：

10.1039/b406422d

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

The structures of derivatives of phenyl-ortho-carborane bearing on the second cage hypercarbon atom a pi-donor substituent (F, OH, O-, NH2, NH- and CH2-) were investigated by NMR, X-ray crystallography and computational studies. The molecular structures of these compounds, notably their cage C1-C2 distances and the orientations of their pi-donor substituents (OH, NH2, NH- and CH2-) show remarkable and systematic variations with the degree of exo pi-bonding, which varies as expected with the pi-donor characteristics of the substituent.

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收藏

页码：2786 / 2799

页数：14

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