Compressed and expanded lattices - barriers to spin-state switching in Mn3+ complexes

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F23%3A00573860" target="_blank" >RIV/68378271:_____/23:00573860 - isvavai.cz</a>

Výsledek na webu

<a href="https://hdl.handle.net/11104/0344212" target="_blank" >https://hdl.handle.net/11104/0344212</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1021/acs.cgd.2c01284" target="_blank" >10.1021/acs.cgd.2c01284</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Compressed and expanded lattices - barriers to spin-state switching in Mn3+ complexes

Popis výsledku v původním jazyce

We report the structural and magnetic properties of two new Mn3+ complex cations in the spin crossover [Mn(R-sal2323)]+ series, in lattices with seven different counterions in each case. We investigate the effect on the Mn3+ spin state of appending electron-withdrawing and electron-donating groups on the phenolate donors of the ligand. This was achieved by substitution of the ortho and para positions on the phenolate donors with nitro and methoxy substituents in both possible geometric isomeric forms. Using this design paradigm, the [MnL1]+ (a) and [MnL2]+ (b) complex cations were prepared by complexation of Mn3+ to the hexadentate Schiff base ligands with 3-nitro-5-methoxy-phenolate or 3-methoxy-5-nitro-phenolate substituents, respectively. A clear trend emerges with adoption of the spin triplet form in complexes 1a–7a, with the 3-nitro-5-methoxy-phenolate donors, and spin triplet, spin quintet and thermal SCO in complexes 1b–7b with the 3-methoxy-5-nitro-phenolate ligand isomer.

Název v anglickém jazyce

Compressed and expanded lattices - barriers to spin-state switching in Mn3+ complexes

Popis výsledku anglicky

We report the structural and magnetic properties of two new Mn3+ complex cations in the spin crossover [Mn(R-sal2323)]+ series, in lattices with seven different counterions in each case. We investigate the effect on the Mn3+ spin state of appending electron-withdrawing and electron-donating groups on the phenolate donors of the ligand. This was achieved by substitution of the ortho and para positions on the phenolate donors with nitro and methoxy substituents in both possible geometric isomeric forms. Using this design paradigm, the [MnL1]+ (a) and [MnL2]+ (b) complex cations were prepared by complexation of Mn3+ to the hexadentate Schiff base ligands with 3-nitro-5-methoxy-phenolate or 3-methoxy-5-nitro-phenolate substituents, respectively. A clear trend emerges with adoption of the spin triplet form in complexes 1a–7a, with the 3-nitro-5-methoxy-phenolate donors, and spin triplet, spin quintet and thermal SCO in complexes 1b–7b with the 3-methoxy-5-nitro-phenolate ligand isomer.

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 & Design

ISSN

1528-7483

e-ISSN

1528-7505

Svazek periodika

23

Číslo periodika v rámci svazku

6

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

17

Strana od-do

3996-4012

Kód UT WoS článku

001012191400001

EID výsledku v databázi Scopus

2-s2.0-85162749791