Please use this identifier to cite or link to this item:
http://doi.org/10.25358/openscience-8736
Authors: | Gamer, Christoph Sundaresan, Sriram Carrella, Luca M. Rentschler, Eva |
Title: | Single- vs double-decker copper 12-MC-4 metallacrown using the coordination flexibility of a soft donor ligand |
Online publication date: | 2-Feb-2023 |
Year of first publication: | 2022 |
Language: | english |
Abstract: | 2-Methylmercaptobenzohydroxamic acid (mmbHA) has been synthesized and used to form {CuIICl2(MeOH)[12-MCCu(II)N(mmbHA)-4]}2 ⋅ 4MeOH (1) and {CuII(μ2-ClO4)(MeOH)2(py)4[12-MCCu(II)N(mmbHA)-4]}ClO4 (2), a copper(II) based double-decker and a discrete metallacrown (MC) system, respectively. While 1 forms in the absence of a coordinating co-ligand, the presence of pyridine (Py) leads to a change in the coordination mode of mmbHA and a discrete MC 2 is formed. Both compounds have been structurally and magnetically characterized. The magnetic susceptibility measured from 2–300 K shows overall antiferromagnetic exchange coupling within both crown structures and the obtained coupling constants are J1=−88.0(1) cm−1and J2=−64.7(3) cm−1 for 1 and J1=−90.0(5) cm−1 and J2=−31.1(1) cm−1 for 2. However, the ratio of the coupling parameters is highly affected by the structural change. |
DDC: | 540 Chemie 540 Chemistry and allied sciences |
Institution: | Johannes Gutenberg-Universität Mainz |
Department: | FB 09 Chemie, Pharmazie u. Geowissensch. |
Place: | Mainz |
ROR: | https://ror.org/023b0x485 |
DOI: | http://doi.org/10.25358/openscience-8736 |
Version: | Published version |
Publication type: | Zeitschriftenaufsatz |
Document type specification: | Scientific article |
License: | CC BY-NC-ND |
Information on rights of use: | https://creativecommons.org/licenses/by-nc-nd/4.0/ |
Journal: | European journal of inorganic chemistry 2022 22 |
Pages or article number: | 202200261 |
Publisher: | John Wiley & Sons, Ltd |
Publisher place: | Weinheim |
Issue date: | 2022 |
ISSN: | 1099-0682 |
Publisher DOI: | 10.1002/ejic.202200261 |
Appears in collections: | DFG-491381577-H |
Files in This Item:
File | Description | Size | Format | ||
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![]() | single_vs_doubledecker_copper-20230201141853857.pdf | 667.49 kB | Adobe PDF | View/Open |