pH-triggered changes in the supramolecular self-assembly of Cu(II) malonate complexes

被引：28

作者：

Choudhury, Somnath Ray ^{[2
]}

Jana, Atish Dipankar ^{[1
]}

Chen, Chih-Yuan ^{[3
]}

Dutta, Amitava ^{[4
]}

Colacio, Enrique ^{[5
]}

Lee, Hon Man ^{[3
]}

Mostafa, Golam ^{[1
]}

Mukhopadhyay, Subrata ^{[2
]}

机构：

[1] Jadavpur Univ, Dept Phys, Kolkata 700032, India

[2] Jadavpur Univ, Dept Chem, Kolkata 700032, India

[3] Natl Changhua Univ Educ, Dept Chem, Changhua 50058, Taiwan

[4] Bangabasi Morning Coll, Dept Chem, Kolkata 700009, India

[5] Univ Granada, Dept Quim Inorgan, E-18071 Granada, Spain

来源：

CRYSTENGCOMM | 2008年 / 10卷 / 10期

关键词：

D O I：

10.1039/b802723d

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Two different hydrate phases, namely, {[Cu(mal)(2)](picH)(2)center dot 2H(2)O}(n) (1) and {[Cu(mal)(2)](picH)(2)center dot 5H(2)O}(n) (2) [malH(2) = malonic acid; picH protonated 2-amino-4-picoline] could be synthesized from purely aqueous media simply by mixing the reactants in stoichiometric ratio but with a slight alteration in the acidity of the reaction media. When the solid-state structure of 1 is compared with the previously reported complex 2, interesting changes in the supramolecular self-assembly are noticed. We found that the observed pH-triggered change is exclusive in the ternary system stated and not for Ni(II), Co(II) or Mn(II). We also noticed the presence of a -CH3 center dot center dot center dot Ow interaction between the methyl terminals of protonated picoline molecules and the oxygen atoms of lattice water molecules in 1.

引用

页码：1358 / 1363

页数：6

共 55 条

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