Copper(ii) self-assembled clusters of bis((pyridin-2-yl)-1,2,4-triazol-3-yl)alkanes. Unusual rearrangement of ligands under reaction conditions
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989592%3A15310%2F19%3A73596669" target="_blank" >RIV/61989592:15310/19:73596669 - isvavai.cz</a>
Result on the web
<a href="https://pubs.rsc.org/en/content/articlepdf/2019/dt/c8dt04816a" target="_blank" >https://pubs.rsc.org/en/content/articlepdf/2019/dt/c8dt04816a</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1039/c8dt04816a" target="_blank" >10.1039/c8dt04816a</a>
Alternative languages
Result language
angličtina
Original language name
Copper(ii) self-assembled clusters of bis((pyridin-2-yl)-1,2,4-triazol-3-yl)alkanes. Unusual rearrangement of ligands under reaction conditions
Original language description
The reaction of two structurally related bridging ligands bis[5-(2-pyridyl)-1,2,4-triazole-3-yl]methane (H(2)L1) and bis[5-(2-pyridyl)-1,2,4-triazole-3-yl]ethane (H(2)L2) with copper(ii) salts resulted in a surprising wide variety of complex structures [Cu-2(H(2)L1)Cl-2]Cl(2)4CH(3)OH (1), [Cu-4(L1)(4)]4H(2)O (2), [Cu(H(2)L2)(ClO4)(2)] (3) and [Cu-3(OH)Na-2(L)(6)](ClO4)5H(2)OC(3)H(6)O (4), where HL is 3,5-bis-(pyridin-2-yl)-1,2,4-triazole, which were structurally characterized by the X-ray diffraction method. Complexes 1 and 2 were prepared on the H(2)L1 basis and have binuclear and tetranuclear structures, respectively, demonstrating strong impact of the type of counter anion on the coordination mode of the ligand. In contrast, the reaction between Cu(ClO4)(2) 6H(2)O and H(2)L2 led to the preparation of mononuclear complex 3. The reaction of H(2)L2 with Cu(ClO4)(2) under alkaline conditions led to oxidative rearrangement of the ligand and the homoleptic pentanuclear complex 4 with anionic ligand L was prepared. Magnetic properties were studied for compounds 1, 2 and 4 and for all of them the antiferromagnetic interactions between the Cu atoms were confirmed and analyzed by the spin Hamiltonian formalism. Furthermore, the occurrence of the antisymmetric exchange was confirmed in 4. The magnetic data analysis was supported by the X-band EPR measurements performed for complexes 1, 2 and 4.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10402 - Inorganic and nuclear chemistry
Result continuities
Project
<a href="/en/project/LO1305" target="_blank" >LO1305: Development of the center of advanced technologies and materials</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2019
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
DALTON TRANSACTIONS
ISSN
1477-9226
e-ISSN
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Volume of the periodical
48
Issue of the periodical within the volume
9
Country of publishing house
GB - UNITED KINGDOM
Number of pages
9
Pages from-to
3052-3060
UT code for WoS article
000460780300026
EID of the result in the Scopus database
2-s2.0-85062166741