Zinc dicarboxylate polymers and dimers: thiourea substitution as a tool in supramolecular synthesis

被引：37

作者：

Burke, NJ ^{[1
]}

Burrows, AD ^{[1
]}

Donovan, AS ^{[1
]}

Harrington, RW ^{[1
]}

Mahon, MF ^{[1
]}

Price, CE ^{[1
]}

机构：

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

来源：

DALTON TRANSACTIONS | 2003年 / 20期

关键词：

D O I：

10.1039/b307420j

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

The reactions of the zinc thiourea complexes [Zn{SC(NHR)(NHR')}(4)] Cl-2(L=L-1, R=H, R'=Me; L=L-2, R=Me, R'=Me) with a range of dicarboxylates have been investigated. From these reactions eleven products-[Zn(L-1)(2)-(mu-terephthalate)](n), [Zn(L-1)(2)(mu-fumarate)](n), {[Zn(L-1)(2)(mu-isophthalate)].H2O}(n), [Zn(L-1)(2)(mu-1,3-phenylenediacetate)](n), [Zn(L-1)(2)(mu-phthalate)](2).4H(2)O, {[Zn(L-2)(2)(mu-terephthlate)].0.5H(2)O}(n), [Zn(L-2)(2)(mu-fumarate)](n), [Zn(L-2)(2)(mu-isophthalate)](2).2H(2)O, [Zn(L-2)(2)(mu-phthalate)](n), [Zn(L-2)(2)(mu-maleate)](2).2H(2)O and [Zn(L-2)(2)(mu-citraconate)](2).2H(2)O-have been crystallographically characterised. The structural characterisation of these compounds demonstrates that by increasing the number of methyl substituents on the thiourea ligand, the likelihood of forming a dimer as opposed to a coordination polymer also increases. Moreover, dimer formation is only favoured for non-linear dicarboxylates those in which the angle between the carboxylate groups is less than 180degrees.

引用

页码：3840 / 3849

页数：10

共 25 条

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