Chemistry

Magnetically tunable tetrahedral cobalt(II) halide salts a Send mail to Mukda B.A.; a; b; c;

Document Type

Article

Abstract

Five synthetically tunable Co(II) salts with the general formula (2-amino-5-iodopyridinium)2[Co(II)Cl4-xBrx] have been prepared: (1, (2-amino-5-iodopyridinium)2[CoCl4]·H2O 2, (2-amino-5-iodopyridinium)2[CoCl4-xBrx]·H2O (x = 0.542) 3, (2-amino-5-iodopyridinium)2[CoCl4-xBrx]·H2O (x = 2.34) 4, (2-amino-5-iodopyridinium)2[CoCl4-xBrx]·H2O (x = 3.47) 5, and (2-amino-5-iodopyridinium)2[CoBr4]·H2O). All compounds crystallize in the space group P21/c. Controlling the amount of each halide ion introduced into the reaction mixture can control the relative amounts of chloride and bromide in the products; variable temperature magnetic susceptibility data indicate the presence of single-ion anisotropy in all compounds. In addition, increasing amounts of bromide ion in the samples lead to measurable antiferromagnetic interactions. Additionally, we find that changing the relative amounts of chloride ion and bromide ion changes the anisotropy of the compound.

Publication Title

Journal of Coordination Chemistry

Publication Date

2024

ISSN

0095-8972

DOI

10.1080/00958972.2024.2434130

Keywords

magnetic tunability, randomness, tetrahedral cobalt(II) complexes

Cross Post Location

Student Publications

Link to Full Text

Share

COinS