In air a spin crossover active iron(II) complex of amine/NCBH3- ligands is converted to a low spin complex of imine/CN- ligands

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989592%3A15310%2F15%3A33155625" target="_blank" >RIV/61989592:15310/15:33155625 - isvavai.cz</a>

Výsledek na webu

<a href="http://pubs.rsc.org/en/content/articlepdf/2015/dt/c5dt03464g" target="_blank" >http://pubs.rsc.org/en/content/articlepdf/2015/dt/c5dt03464g</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1039/c5dt03464g" target="_blank" >10.1039/c5dt03464g</a>

Jazyk výsledku

angličtina

Název v původním jazyce

In air a spin crossover active iron(II) complex of amine/NCBH3- ligands is converted to a low spin complex of imine/CN- ligands

Popis výsledku v původním jazyce

Two new mononuclear FeII complexes, [FeL1(NCBH3)(2)] (1) and [FeL2(CN)(2)]center dot 3H(2)O (2) (L-1 = N, N'-bis(2-pyridylmethyl)-1,2-ethanediamine, L-2 = N-(2-pyridylmethyl)-N'-(2-pyridylmethylene)-1,2-ethanediamine) were synthesized from the same starting solution under different atmospheric conditions. Complex 1 was isolated under an N-2 atmosphere with an expected molecular structure, namely a tetradentate L1 ligand and two NCBH3- co-ligands wrapping an iron(II) ion. It exhibits a gradual spin crossover centered around 355 K, as confirmed by X-ray crystallography, magnetic, DSC and Mossbauer studies. Complex 2 was isolated in the presence of air. One of the secondary amine groups in L-1 undergoes an in situ oxidative dehydrogenation, forming a newmonoimine asymmetric ligand L-2. Besides, a CN-co-ligand is also in situ generated from NCBH3- during the reaction. The strong ligand field strength imposed by CN- and L-2 stabilizes 2 in the LS state. Solvent water molecules in complex 2

Název v anglickém jazyce

In air a spin crossover active iron(II) complex of amine/NCBH3- ligands is converted to a low spin complex of imine/CN- ligands

Popis výsledku anglicky

Two new mononuclear FeII complexes, [FeL1(NCBH3)(2)] (1) and [FeL2(CN)(2)]center dot 3H(2)O (2) (L-1 = N, N'-bis(2-pyridylmethyl)-1,2-ethanediamine, L-2 = N-(2-pyridylmethyl)-N'-(2-pyridylmethylene)-1,2-ethanediamine) were synthesized from the same starting solution under different atmospheric conditions. Complex 1 was isolated under an N-2 atmosphere with an expected molecular structure, namely a tetradentate L1 ligand and two NCBH3- co-ligands wrapping an iron(II) ion. It exhibits a gradual spin crossover centered around 355 K, as confirmed by X-ray crystallography, magnetic, DSC and Mossbauer studies. Complex 2 was isolated in the presence of air. One of the secondary amine groups in L-1 undergoes an in situ oxidative dehydrogenation, forming a newmonoimine asymmetric ligand L-2. Besides, a CN-co-ligand is also in situ generated from NCBH3- during the reaction. The strong ligand field strength imposed by CN- and L-2 stabilizes 2 in the LS state. Solvent water molecules in complex 2

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

CC - Organická chemie

OECD FORD obor

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Projekt

—

Návaznosti

N - Vyzkumna aktivita podporovana z neverejnych zdroju

Rok uplatnění

2015

Kód důvěrnosti údajů

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

Název periodika

Dalton Transactions (print)

ISSN

1477-9226

e-ISSN

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Svazek periodika

44

Číslo periodika v rámci svazku

47

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

11

Strana od-do

20551-20561

Kód UT WoS článku

000365411500034

EID výsledku v databázi Scopus

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