Triple M as Manganese: Medicine, magnetism and macrocycles. Seven-coordinate Mn(II) complexes with pyridine-based macrocyclic ligands

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11310%2F21%3A10428559" target="_blank" >RIV/00216208:11310/21:10428559 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/61989592:15310/21:73609427

Výsledek na webu

<a href="https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=JmGtfGY2Fe" target="_blank" >https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=JmGtfGY2Fe</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.poly.2021.115231" target="_blank" >10.1016/j.poly.2021.115231</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Triple M as Manganese: Medicine, magnetism and macrocycles. Seven-coordinate Mn(II) complexes with pyridine-based macrocyclic ligands

Popis výsledku v původním jazyce

Manganese, or more accurately manganese(II) complexes, are extensively used in various scientific and research fields. In this work, we present the preparation and characterization of three manganese(II) complexes with three structurally-new pyridine-based macrocyclic ligands, which differ from each other by functional group in pendant arms. The ligands&apos; backbone consists of a parental 17-membered macrocycle (L-diProp) containing pyridine and piperazine rings, which are part of the macrocyclic scaffold. The original aliphatic NH groups in L-diProp were successively substituted with three different pendant arms - benzyl (bn(2)-L-diProp), 2-pyridylmethyl (py(2)-L-diProp) and 2-aminoethyl ((NH(2)et)(2)-L-diProp). A series of manganese(II) complexes with structural formulas [Mn(bn(2)-L-diProp)Cl-2]center dot CH3OH (1), [Mn(py(2)-L-diProp)] (ClO4)(2)center dot 0.5CH(3)CN center dot 0.35H(2)O (2) and [Mn((NH(2)et)(2)-L-diProp)](ClO4)(2) (3) were subsequently prepared. In all cases, the presence of coordination number seven with a close to pentagonal bipyramid geometry was confirmed by X-ray diffraction analysis. The axial positions were occupied by chlorido coligands (1) or nitrogen atoms of the pendant arms (2 and 3). The pentagonal bipyramidal coordination sphere was distorted in case of all complexes 1-3 and axially compressed for 2 and 3. The equatorial Mn-N-aliphatic bond distances were significantly lengthened up to 2.61 angstrom.

Název v anglickém jazyce

Triple M as Manganese: Medicine, magnetism and macrocycles. Seven-coordinate Mn(II) complexes with pyridine-based macrocyclic ligands

Popis výsledku anglicky

Manganese, or more accurately manganese(II) complexes, are extensively used in various scientific and research fields. In this work, we present the preparation and characterization of three manganese(II) complexes with three structurally-new pyridine-based macrocyclic ligands, which differ from each other by functional group in pendant arms. The ligands&apos; backbone consists of a parental 17-membered macrocycle (L-diProp) containing pyridine and piperazine rings, which are part of the macrocyclic scaffold. The original aliphatic NH groups in L-diProp were successively substituted with three different pendant arms - benzyl (bn(2)-L-diProp), 2-pyridylmethyl (py(2)-L-diProp) and 2-aminoethyl ((NH(2)et)(2)-L-diProp). A series of manganese(II) complexes with structural formulas [Mn(bn(2)-L-diProp)Cl-2]center dot CH3OH (1), [Mn(py(2)-L-diProp)] (ClO4)(2)center dot 0.5CH(3)CN center dot 0.35H(2)O (2) and [Mn((NH(2)et)(2)-L-diProp)](ClO4)(2) (3) were subsequently prepared. In all cases, the presence of coordination number seven with a close to pentagonal bipyramid geometry was confirmed by X-ray diffraction analysis. The axial positions were occupied by chlorido coligands (1) or nitrogen atoms of the pendant arms (2 and 3). The pentagonal bipyramidal coordination sphere was distorted in case of all complexes 1-3 and axially compressed for 2 and 3. The equatorial Mn-N-aliphatic bond distances were significantly lengthened up to 2.61 angstrom.

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

Polyhedron

ISSN

0277-5387

e-ISSN

—

Svazek periodika

203

Číslo periodika v rámci svazku

July

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

9

Strana od-do

115231

Kód UT WoS článku

000655318200017

EID výsledku v databázi Scopus

2-s2.0-85105057528