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Journal article
Structural and Magnetic Properties of a {GdCu5}2 Metallacrown Dimer with a Disulfonate Linker
European journal of inorganic chemistry
12 Dec 2023
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Abstract
The complex {Na2(H2O)8[GdCu5(GlyHA)5(H2O)4L]2}L2·2.5DMF ·10.5H2O (1, where GlyHA2‐ = glycinehydroxamate, L2‐ = 4,4'‐bis(2‐sulfonatostyryl)biphenyl) was obtained as the outcome of the metathesis reaction of previously reported [GdCu5(GlyHA)5(CO3)(NO3)(H2O)5]·3.5H2O with an excess of the disulfonate's sodium salt. X‐Ray analysis of 1 shows a dimeric structure in which 15‐metallacrown‐5 units {GdCu5}3+ are arranged in an “edge‐to‐edge” manner by way of two linking disulfonates, L2‐. Magnetic studies of polycrystalline 1 over a temperature range of 2 – 300 K revealed both Gd‐‐Cu ferromagnetic and Cu‐‐Cu antiferromagnetic interactions within the metallacrown unit. Experimental χMTvs. T data for 1 were fitted using different theoretical models. A two‐J model, which takes into account both exchange interactions between adjacent copper(II) ions and the Gd‐Cu exchange interactions allows fitting of the χMTvs. T data in the whole temperature range. The values obtained for the exchange parameters are in accord with previously reported parameters for Ln(III)‐Cu(II) 15‐metallacrowns‐5. The 240 GHz powder EPR spectra for 1 were recorded at between 30 and 150 K.
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Details
- Title
- Structural and Magnetic Properties of a {GdCu5}2 Metallacrown Dimer with a Disulfonate Linker
- Creators
- Anna V. Pavlishchuk - L.V. Pisarzhevskii Institute of Physical ChemistryMatthias Zeller - Purdue University Department of Chemistry 560 Oval Drive 47907-2084 West Lafayette UNITED STATESLuca M. Carrella - Johannes Gutenberg University MainzEva Rentschler - Johannes Gutenberg University MainzJasleen K. Bindra - Florida State UniversityNaresh Dalal - Florida State UniversityJared Kinyon - KIIT UniversityKuluni Perera - Purdue University West LafayetteVitaly V. Pavlishchuk - L.V. Pisarzhevskii Institute of Physical ChemistryAnthony W. Addison - Drexel University
- Publication Details
- European journal of inorganic chemistry
- Publisher
- Wiley
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- Chemistry
- Web of Science ID
- WOS:001139552600001
- Scopus ID
- 2-s2.0-85181697612
- Other Identifier
- 991021812333504721
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- Collaboration types
- Domestic collaboration
- International collaboration
- Web of Science research areas
- Chemistry, Inorganic & Nuclear