Coordination complexes of isoquinoline with cobalt and nickel halides

Authors

Michelle A. Bellerive, Clark University
Michael T. Kebede, Clark University
Diane A. Dickie, University of Virginia
Christopher Landee, Clark UniversityFollow
Melanie Rademeyer, University of Pretoria
Mark Turnbull, Clark UniversityFollow

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

Repository Citation

Bellerive, Michelle A.; Kebede, Michael T.; Dickie, Diane A.; Landee, Christopher; Rademeyer, Melanie; and Turnbull, Mark, "Coordination complexes of isoquinoline with cobalt and nickel halides" (2024). Chemistry. 29.
https://commons.clarku.edu/chemistry/29