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Formation of a four-bladed waterwheel-type chloro-bridged dicopper(ii) complex with dithiamacrocycle via double exo-coordination

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Abstract

A combination of O3S2-macrocycles incorporating different sulfur-to-sulfur separations (S-(CH2)n-S, L1: n = 2, L2: n = 3) and copper(II) nitrate afforded new types of both monocopper(II) and dicopper(II) complexes, respectively. L1 gave a 1D coordination polymer [Cu2(L1)2(NO3)4]n (1) based on a convergent exo-coordination mode while L2 resulted in the formation of a divergent exo/exo-coordinated dicopper(II) complex, [Cu2(L2ox)4(μ-Cl)](NO3)4 (2), whose shape resembles a four-bladed waterwheel in which in situ oxidized macrocycles (L2ox) act as the blades and a CuII-(μ-Cl)-CuII entity corresponds to the axle shaft. The chloro-bridging ligand is derived from the dichloromethane solvent and its arrangement is held together by C–H⋯Cl H-bonds. Compound 2 shows a weak antiferromagnetic property via the CuII-(μ-Cl)-CuII entity.

Graphical abstract: Formation of a four-bladed waterwheel-type chloro-bridged dicopper(ii) complex with dithiamacrocycle via double exo-coordination

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Article information


Submitted
12 Nov 2019
Accepted
17 Dec 2019
First published
18 Dec 2019

Dalton Trans., 2020, Advance Article
Article type
Communication

Formation of a four-bladed waterwheel-type chloro-bridged dicopper(II) complex with dithiamacrocycle via double exo-coordination

S. Kim, I. Park, H. Choi, H. Ju, E. Lee, T. S. Herng, J. Ding, J. H. Jung and S. S. Lee, Dalton Trans., 2020, Advance Article , DOI: 10.1039/C9DT04372A

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