Synthesis, structural and magnetic properties of cobalt(ii) complexes with pyridine-based macrocyclic ligand containing two pyridine pendant arms

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989592%3A15310%2F24%3A73627699" target="_blank" >RIV/61989592:15310/24:73627699 - isvavai.cz</a>

Výsledek na webu

<a href="https://pubs.rsc.org/en/content/articlelanding/2024/ra/d4ra02387k" target="_blank" >https://pubs.rsc.org/en/content/articlelanding/2024/ra/d4ra02387k</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1039/d4ra02387k" target="_blank" >10.1039/d4ra02387k</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Synthesis, structural and magnetic properties of cobalt(ii) complexes with pyridine-based macrocyclic ligand containing two pyridine pendant arms

Popis výsledku v původním jazyce

With the aim of tuning the magnetic anisotropy, a series of Co(II) complexes with the general formula of complex cations [Co(L)X](+), where X = Br- (1); I- (2); NCO- (3); NCS- (4a); N-3(-) (5), and [Co(L)(NCS)(2)] (4b), (L = a 17-membered pyridine-based N3O2-macrocyclic ligand containing two pyridin-2-ylmethyl pendant arms) were prepared and thoroughly characterized. The molecular structures for all complexes showed strongly distorted geometry in between octahedral and trigonal prismatic. The magnetic studies confirmed substantial magnetic anisotropy with positive values of D, the axial zero-field splitting parameter, but E/D ratios close to 1/3. This was supported by theoretical CASSCF calculations showing no significant effect of the co-ligands. Complex 4b was found to behave as a field-induced SMM.

Název v anglickém jazyce

Synthesis, structural and magnetic properties of cobalt(ii) complexes with pyridine-based macrocyclic ligand containing two pyridine pendant arms

Popis výsledku anglicky

With the aim of tuning the magnetic anisotropy, a series of Co(II) complexes with the general formula of complex cations [Co(L)X](+), where X = Br- (1); I- (2); NCO- (3); NCS- (4a); N-3(-) (5), and [Co(L)(NCS)(2)] (4b), (L = a 17-membered pyridine-based N3O2-macrocyclic ligand containing two pyridin-2-ylmethyl pendant arms) were prepared and thoroughly characterized. The molecular structures for all complexes showed strongly distorted geometry in between octahedral and trigonal prismatic. The magnetic studies confirmed substantial magnetic anisotropy with positive values of D, the axial zero-field splitting parameter, but E/D ratios close to 1/3. This was supported by theoretical CASSCF calculations showing no significant effect of the co-ligands. Complex 4b was found to behave as a field-induced SMM.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10402 - Inorganic and nuclear chemistry

Projekt

—

Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2024

Kód důvěrnosti údajů

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

Název periodika

RSC Advances

ISSN

2046-2069

e-ISSN

—

Svazek periodika

14

Číslo periodika v rámci svazku

38

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

10

Strana od-do

28138-28147

Kód UT WoS článku

001304212200001

EID výsledku v databázi Scopus

2-s2.0-85203020951