Iron(II) Complexes of 2,6-Di[4-(ethylcarboxy)pyrazol-1-yl]pyridine with Reversible Guest-Modulated Spin-Crossover Behavior

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26620%2F23%3APU148458" target="_blank" >RIV/00216305:26620/23:PU148458 - isvavai.cz</a>

Výsledek na webu

<a href="https://pubs.acs.org/doi/10.1021/acs.cgd.2c01524" target="_blank" >https://pubs.acs.org/doi/10.1021/acs.cgd.2c01524</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1021/acs.cgd.2c01524" target="_blank" >10.1021/acs.cgd.2c01524</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Iron(II) Complexes of 2,6-Di[4-(ethylcarboxy)pyrazol-1-yl]pyridine with Reversible Guest-Modulated Spin-Crossover Behavior

Popis výsledku v původním jazyce

Three solvatomorphs of the iron(II) complex of 2,6di[4-(ethylcarboxy)pyrazol-1-yl]pyridine (bpCOOEt2p) of formulas [Fe(bpCOOEt2p)2](ClO4)2 center dot 1.5MeNO2 (1), [Fe(bpCOOEt2p)2]-(ClO4)2 center dot MeNO2 (2), and [Fe(bpCOOEt2p)2](ClO4)2 center dot 2MeNO2 (3) have been prepared and characterized. They show interesting spin crossover (SCO) properties ranging from partial to complete thermal spin transitions and a light-induced excited spin-state trapping (LIESST) effect. In solvatomorph 2, a robust structure is formed with channels that enable the entrance or removal of solvent molecules by vapor diffusion without losing the crystallinity. Thus, solvent exchanged samples [Fe(bpCOOEt2p)2](ClO4)2 center dot MeNO2 (2 center dot MeNO2), [Fe(bpCOOEt2p)2](ClO4)2 center dot MeCN (2 center dot MeCN), [Fe(bpCOOEt2p)2]-(ClO4)2 center dot 0.5Me2CO (2 center dot Me2CO), and [Fe(bpCOOEt2p)2](ClO4)2 center dot MeCOOH (2 center dot MeCOOH) were prepared by vapor diffusion of the solvents in a crystal of the compound previously heated to 400 K in a single-crystal to single-crystal (SCSC) fashion. Interestingly, this causes a change of spin state with a stabilization of the low-spin state in 2 center dot Me2CO and the high-spin state in 2 center dot MeCN. Therefore, the SCO properties of 2 can be tuned in a reversible way by exposure to different solvents.

Název v anglickém jazyce

Iron(II) Complexes of 2,6-Di[4-(ethylcarboxy)pyrazol-1-yl]pyridine with Reversible Guest-Modulated Spin-Crossover Behavior

Popis výsledku anglicky

Three solvatomorphs of the iron(II) complex of 2,6di[4-(ethylcarboxy)pyrazol-1-yl]pyridine (bpCOOEt2p) of formulas [Fe(bpCOOEt2p)2](ClO4)2 center dot 1.5MeNO2 (1), [Fe(bpCOOEt2p)2]-(ClO4)2 center dot MeNO2 (2), and [Fe(bpCOOEt2p)2](ClO4)2 center dot 2MeNO2 (3) have been prepared and characterized. They show interesting spin crossover (SCO) properties ranging from partial to complete thermal spin transitions and a light-induced excited spin-state trapping (LIESST) effect. In solvatomorph 2, a robust structure is formed with channels that enable the entrance or removal of solvent molecules by vapor diffusion without losing the crystallinity. Thus, solvent exchanged samples [Fe(bpCOOEt2p)2](ClO4)2 center dot MeNO2 (2 center dot MeNO2), [Fe(bpCOOEt2p)2](ClO4)2 center dot MeCN (2 center dot MeCN), [Fe(bpCOOEt2p)2]-(ClO4)2 center dot 0.5Me2CO (2 center dot Me2CO), and [Fe(bpCOOEt2p)2](ClO4)2 center dot MeCOOH (2 center dot MeCOOH) were prepared by vapor diffusion of the solvents in a crystal of the compound previously heated to 400 K in a single-crystal to single-crystal (SCSC) fashion. Interestingly, this causes a change of spin state with a stabilization of the low-spin state in 2 center dot Me2CO and the high-spin state in 2 center dot MeCN. Therefore, the SCO properties of 2 can be tuned in a reversible way by exposure to different solvents.

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

2023

Kód důvěrnosti údajů

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

Název periodika

Crystal Growth and Design

ISSN

1528-7483

e-ISSN

1528-7505

Svazek periodika

23

Číslo periodika v rámci svazku

4

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

9

Strana od-do

2730-2738

Kód UT WoS článku

000960937400001

EID výsledku v databázi Scopus

2-s2.0-85149583745