Synthesis, structure and magnetic properties of Ni(II) and Cu(II), [2 x 2] grid complexes of pyrimidine-based symmetric ditopic ligands

被引：7

作者：

Lakma, Avinash ^{[1
]}

Pradhan, Rabindra Nath ^{[1
]}

Hussain, Sayed Muktar ^{[1
]}

van Leusen, Jan ^{[2
]}

Koegerler, Paul ^{[2
]}

Singh, Akhilesh Kumar ^{[1
]}

机构：

[1] Indian Inst Technol Bhubaneswar, Sch Basic Sci, Bhubaneswar 752050, Odisha, India

[2] Rhein Westfal TH Aachen, Inst Anorgan Chem, D-52074 Aachen, Germany

来源：

INORGANICA CHIMICA ACTA | 2019年 / 486卷

关键词：

Ditopic ligands; Cu(II); Ni(II); 2 x 2] Grid complexes; X-ray structure; Magnetism; MOLECULAR ARCHITECTURE;

D O I：

10.1016/j.ica.2018.10.019

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

The successful synthesis of new pyrimidine based organic ligands with terminal carboxylate and oxime functional groups, followed by their employment in metallogrid self-assembly has yielded three tetranuclear [Ni-4(L-1)(4)]center dot 2CH(3)CN center dot 4CH(3)OH center dot 4H(2)O (1), [Cu-4(HL1)(4) ]center dot 8CH(3) OH center dot 28H(2)O (2) and [Ni-4(H2L2)(4)](CF3SO3 )(8)center dot 4CH(3)NO(2)center dot 8H(2)O (3), [2 x 2] metallogrid complexes. The complexes have been well characterized by elemental analyses, IR spectra, UV-vis spectra and X-ray structural analyses. Variable temperature magnetic measurements/studies done on these three complexes followed by magnetic data fitting suggest that all the three complexes are dominated by intramolecular antiferromagnetic exchange coupling.

引用

页码：88 / 94

页数：7

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