Solvent-induced structural transformation from heptanuclear to decanuclear [Co-Ln] coordination clusters: trapping of unique counteranion and understanding of aggregation pathways

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26620%2F21%3APU142103" target="_blank" >RIV/00216305:26620/21:PU142103 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/61989592:15310/21:73609431

Výsledek na webu

<a href="https://pubs.rsc.org/en/content/articlelanding/2021/DT/D1DT01278A" target="_blank" >https://pubs.rsc.org/en/content/articlelanding/2021/DT/D1DT01278A</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1039/d1dt01278a" target="_blank" >10.1039/d1dt01278a</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Solvent-induced structural transformation from heptanuclear to decanuclear [Co-Ln] coordination clusters: trapping of unique counteranion and understanding of aggregation pathways

Popis výsledku v původním jazyce

Five new cobalt(ii/ili)-lanthanide(m)-based coordination aggregates, [Ln(3)(III)Co(2)(II)Co(2)(III)(L1)(2)(O2CCMe3)(8)(OH)(4) (OMe)(2)(H2O)(4)]center dot Ln(eta(1)-O2CCMe3)(2)(eta(2)-O2CCMe3)(2)(MeOH)(2)center dot 2MeOH center dot 2H(2)O (where Ln = Tb (1), Ho (3), and H(2)L1 = N-(2-hydroxyethyl)-salicylaldimine), (Tb3Co3Co4III)-Co-III-Co-II(L1)(4)(O2CCMe3)(9)(OH)(10)(H2O) (4) and Ln(3)(III)Co(2)(II)CoT (L1)(4)(O2CCMe3)(10)(OH)(10) (Ln = Dy (5), Ho (6)) have been synthesized and characterized, including structural analysis via single-crystal X-ray diffraction. The dysprosium analogue (2) of 1 and 3 was previously reported by us. The heptanuclear monocationic clusters in 1 and 3 were formed by placement of seven metal ions (4 Co and 3 Ln) in a vertex shared dicubane structure from the control of two Schiff base anions and crystallized in the presence of in situ generated and literature unknown counter anions Tb(eta(1)-O2CCMe3)(2)(eta(2)-O2CCMe3)(2)(MeOH)(2)(-) and Ho(eta(1)-O2CCMe3)(2)(eta(2)-O2CCMe3)(2)(MeOH)(2)(-). Interesting solvent-induced cluster structure transformation was observed on dissolving the heptanuclear aggregates in MeCN for the formation of decanuclear clusters 4-6. These high nuclearity clusters consist of a vertex shared heptanuclear dicubane part and a curved trinuclear chain linking the two cubic halves. The dicubane unit differs from that of the heptanuclear precursors in the presence of Co-II/III at the shared vertex as opposed to Ln(III) and the absence of OMe- bridges. HRMS (+ve) analysis shed light on the pathway of formation of these heptanuclear molecules, while at the same time revealing a different aggregation process for the decanuclear clusters.

Název v anglickém jazyce

Solvent-induced structural transformation from heptanuclear to decanuclear [Co-Ln] coordination clusters: trapping of unique counteranion and understanding of aggregation pathways

Popis výsledku anglicky

Five new cobalt(ii/ili)-lanthanide(m)-based coordination aggregates, [Ln(3)(III)Co(2)(II)Co(2)(III)(L1)(2)(O2CCMe3)(8)(OH)(4) (OMe)(2)(H2O)(4)]center dot Ln(eta(1)-O2CCMe3)(2)(eta(2)-O2CCMe3)(2)(MeOH)(2)center dot 2MeOH center dot 2H(2)O (where Ln = Tb (1), Ho (3), and H(2)L1 = N-(2-hydroxyethyl)-salicylaldimine), (Tb3Co3Co4III)-Co-III-Co-II(L1)(4)(O2CCMe3)(9)(OH)(10)(H2O) (4) and Ln(3)(III)Co(2)(II)CoT (L1)(4)(O2CCMe3)(10)(OH)(10) (Ln = Dy (5), Ho (6)) have been synthesized and characterized, including structural analysis via single-crystal X-ray diffraction. The dysprosium analogue (2) of 1 and 3 was previously reported by us. The heptanuclear monocationic clusters in 1 and 3 were formed by placement of seven metal ions (4 Co and 3 Ln) in a vertex shared dicubane structure from the control of two Schiff base anions and crystallized in the presence of in situ generated and literature unknown counter anions Tb(eta(1)-O2CCMe3)(2)(eta(2)-O2CCMe3)(2)(MeOH)(2)(-) and Ho(eta(1)-O2CCMe3)(2)(eta(2)-O2CCMe3)(2)(MeOH)(2)(-). Interesting solvent-induced cluster structure transformation was observed on dissolving the heptanuclear aggregates in MeCN for the formation of decanuclear clusters 4-6. These high nuclearity clusters consist of a vertex shared heptanuclear dicubane part and a curved trinuclear chain linking the two cubic halves. The dicubane unit differs from that of the heptanuclear precursors in the presence of Co-II/III at the shared vertex as opposed to Ln(III) and the absence of OMe- bridges. HRMS (+ve) analysis shed light on the pathway of formation of these heptanuclear molecules, while at the same time revealing a different aggregation process for the decanuclear clusters.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10402 - Inorganic and nuclear chemistry

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2021

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

1477-9234

Svazek periodika

50

Číslo periodika v rámci svazku

27

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

15

Strana od-do

9574-9588

Kód UT WoS článku

000664276500001

EID výsledku v databázi Scopus

2-s2.0-85110044804