Chemistry

Coordination complexes of isoquinoline with cobalt and nickel halides

Document Type

Article

Abstract

Reaction of isoquinoline (iQuin) with cobalt(II) and nickel(II) chloride and bromide produced a family of neutral coordination complexes: (iQuin)2CoX2 [X = Cl (1), Br (2)], (iQuin)4CoX2 (X = Cl (3), X = Br (4)], (iQuin)4NiX2 [X = Cl, (5), X = Br, (6)], and (iQuin)2NiBr2(CH3CN)2 (7). The crystal structures of 1–5 and 7 are reported. The majority of the compounds crystallize with some of the iQuin ligands undergoing a ∼2-fold rotational disorder, likely caused by the nearly equivalent space occupied by the two positions. The disorder is temperature independent and ∼50:50 in all cases but one. Magnetic measurements for all seven compounds indicate that their behavior is dominated by single-ion anisotropy effects with indications of antiferromagnetic exchange also present in 1 and 2. © 2024 Informa UK Limited, trading as Taylor & Francis Group.

Publication Title

Journal of Coordination Chemistry

Publication Date

2024

ISSN

0095-8972

DOI

10.1080/00958972.2024.2316792

Keywords

Cobalt(II), isoquinoline, magnetism, nickel(II), X-ray structures

Cross Post Location

Student Publications

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