Chemistry and Physics Faculty Articles

Title

Co(II) Halide Complexes with 2-amino-3-methylpyridinium and 2-amino-5-methylpyridinium: Synthesis, Crystal Structures, and Magnetic Properties

Document Type

Article

Publication Date

7-10-2010

Publication Title

Journal of Coordination Chemistry

Keywords

Co(II), Magnetism, X-ray structure, XY-anisotropy

ISSN

0095-8972

Volume

63

Issue/No.

13

First Page

2223

Last Page

2238

Abstract

Reaction of CoX2 · nH2O with either 2-amino-3-methylpyridine (3-MAP) or 2-amino-5-methylpyridine (5-MAP) in aqueous acid gave complexes, (3-MAPH)2CoX4 or (5-MAPH)2CoX4 (H2O) n [n = 0,1; X = Cl, Br; 3-MAPH = 2-amino-3-methylpyridinium, 5-MAPH = 2-amino-5-methylpyridinium]. The 3-MAPH salts are formed in the triclinic crystal system while the 5-MAPH salts are formed in the monoclinic crystal system. Three of these compounds exhibit weak antiferromagnetic interactions along with varying degrees of single-ion anisotropy, however, 1 shows easy-plane anisotropy and exhibits a mixture of ferromagnetic and antiferromagnetic interactions.

Comments

©2010 Taylor & Francis

Additional Comments

NSF grant #: IMR-0314773

DOI

10.1080/00958972.2010.502230

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Peer Reviewed

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