Transition metal complexes of tris(aminomethyl) phosphine oxide (tampo) - Thermodynamic and X-ray diffraction studies

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11310%2F18%3A10374393" target="_blank" >RIV/00216208:11310/18:10374393 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.1016/j.ica.2017.09.034" target="_blank" >https://doi.org/10.1016/j.ica.2017.09.034</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.ica.2017.09.034" target="_blank" >10.1016/j.ica.2017.09.034</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Transition metal complexes of tris(aminomethyl) phosphine oxide (tampo) - Thermodynamic and X-ray diffraction studies

Popis výsledku v původním jazyce

The coordination behaviour of tris(aminomethyl) phosphine oxide (tampo) to selected transition metal ions was studied. In the case of Co(III), Ni(II) and Cu(II) complexes with metal-to-ligand 1: 2 stoichiometry, bis(tripodal) tampo coordinations forming octahedral coordination spheres (in the case of Cu(II) complex with significant Jahn-Teller distortion) were found by X-ray diffraction analysis. Based on the potentiometric study, the tripodal coordination of the title ligand is also expected in solution. The stability of the metal complexes follows the Irving-Williams trend. Compared with the structurally &quot;parent&quot; 1,1,1-tris(aminomethyl) ethane (tame) ligand, the complexation of tampo occurs at a lower pH as the consequence of low ligand basicity [logK(1) = 6.72(1), logK(2) = 5.34(1) and logK(3) = 3.82(1)], although the values of the stability constants of the metal complexes are relatively low.

Název v anglickém jazyce

Transition metal complexes of tris(aminomethyl) phosphine oxide (tampo) - Thermodynamic and X-ray diffraction studies

Popis výsledku anglicky

The coordination behaviour of tris(aminomethyl) phosphine oxide (tampo) to selected transition metal ions was studied. In the case of Co(III), Ni(II) and Cu(II) complexes with metal-to-ligand 1: 2 stoichiometry, bis(tripodal) tampo coordinations forming octahedral coordination spheres (in the case of Cu(II) complex with significant Jahn-Teller distortion) were found by X-ray diffraction analysis. Based on the potentiometric study, the tripodal coordination of the title ligand is also expected in solution. The stability of the metal complexes follows the Irving-Williams trend. Compared with the structurally &quot;parent&quot; 1,1,1-tris(aminomethyl) ethane (tame) ligand, the complexation of tampo occurs at a lower pH as the consequence of low ligand basicity [logK(1) = 6.72(1), logK(2) = 5.34(1) and logK(3) = 3.82(1)], although the values of the stability constants of the metal complexes are relatively low.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10402 - Inorganic and nuclear chemistry

Projekt

<a href="/cs/project/GAP207%2F11%2F1437" target="_blank" >GAP207/11/1437: Nové třídy kontrastních látek pro tomografii magnetické rezonance</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2018

Kód důvěrnosti údajů

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

Název periodika

Inorganica Chimica Acta

ISSN

0020-1693

e-ISSN

—

Svazek periodika

469

Číslo periodika v rámci svazku

January

Stát vydavatele periodika

CH - Švýcarská konfederace

Počet stran výsledku

10

Strana od-do

217-226

Kód UT WoS článku

000416056400028

EID výsledku v databázi Scopus

2-s2.0-85029711207