Copper(ii) self-assembled clusters of bis((pyridin-2-yl)-1,2,4-triazol-3-yl)alkanes. Unusual rearrangement of ligands under reaction conditions

Kód výsledku v 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>

Výsledek na webu

<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>

Jazyk výsledku

angličtina

Název v původním jazyce

Copper(ii) self-assembled clusters of bis((pyridin-2-yl)-1,2,4-triazol-3-yl)alkanes. Unusual rearrangement of ligands under reaction conditions

Popis výsledku v původním jazyce

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.

Název v anglickém jazyce

Copper(ii) self-assembled clusters of bis((pyridin-2-yl)-1,2,4-triazol-3-yl)alkanes. Unusual rearrangement of ligands under reaction conditions

Popis výsledku anglicky

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.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10402 - Inorganic and nuclear chemistry

Projekt

<a href="/cs/project/LO1305" target="_blank" >LO1305: Rozvoj centra pokročilých technologií a materiálů</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2019

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

DALTON TRANSACTIONS

ISSN

1477-9226

e-ISSN

—

Svazek periodika

48

Číslo periodika v rámci svazku

9

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

9

Strana od-do

3052-3060

Kód UT WoS článku

000460780300026

EID výsledku v databázi Scopus

2-s2.0-85062166741