Coordination chemistry and magnetic properties of copper(II) halide complexes of quinoline

Complexes Cu(quin) 2 X 2 [quin = quinoline, X = Cl (1), Br (2)] have been prepared and characterized via single-crystal X-ray diffraction and variable temperature magnetization measurements. The compounds are isomorphous in the monoclinic space group C2/c and crystallize as square planar complexes l...

Full description

Saved in:
Bibliographic Details
Published in:Journal of coordination chemistry 2022-12, Vol.75 (19-24), p.2616-2627
Main Authors: Landee, Christopher P., Awwadi, Firas F., Twamley, Brendan, Turnbull, Mark M.
Format: Article
Language:English
Subjects:
Antiferromagnetism
Chains
Copper
Copper complexes
Diamagnetism
Low temperature
Magnetic permeability
Magnetic properties
magnetic susceptibility
Quinoline
Single crystals
X-ray structure
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Complexes Cu(quin) 2 X 2 [quin = quinoline, X = Cl (1), Br (2)] have been prepared and characterized via single-crystal X-ray diffraction and variable temperature magnetization measurements. The compounds are isomorphous in the monoclinic space group C2/c and crystallize as square planar complexes linked into chains via short X...X contacts. Magnetic susceptibility data were collected over the temperature range 1.8-300 K and were fitted to the one-dimensional Heisenberg antiferromagnetic model yielding J/k B = −33.7(5) K (1) and −145(4) K (2) with the larger exchange in the bromide complex a result of greater overlap due to the larger van der Waals contribution. Low temperature data indicate the presence of some short chains in the sample which provide for a paramagnetic contribution (odd length chains) or diamagnetic contribution (even length chains) at the lowest temperatures.
ISSN:0095-8972
1029-0389
DOI:10.1080/00958972.2022.2150548