Interaction of the Zn(II)-cyclen complex with aminomethylphosphonic acid: Original simultaneous potentiometric and P-31 NMR data treatment

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11310%2F17%3A10366408" target="_blank" >RIV/00216208:11310/17:10366408 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1039/c7nj00254h" target="_blank" >http://dx.doi.org/10.1039/c7nj00254h</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1039/c7nj00254h" target="_blank" >10.1039/c7nj00254h</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Interaction of the Zn(II)-cyclen complex with aminomethylphosphonic acid: Original simultaneous potentiometric and P-31 NMR data treatment

Popis výsledku v původním jazyce

The interaction of aminomethylphosphonic acid (H(2)amp) with the Zn(II)-cyclen complex and the formation of ternary complexes was studied by potentiometry and P-31 NMR titrations. Data evaluation of each of the methods separately was found to be insufficient. Thus, data obtained from the both methods were simultaneously treated with the computer program OPIUM. The determined stability constants indicated only weak (logK similar to 3) coordination of aminomethylphosphonic acid through the phosphonate group. The chelating coordination mode with the participation of the amine group was not confirmed. In excess of Zn(II)-cyclen, the formation of dinuclear complexes, in which two Zn(II)-cyclen units are bridged by a phosphonate group, was observed and their presence was confirmed by mass spectrometry. Such a coordination motif is typical for phosphonates in the solid state and also for phosphatases.

Název v anglickém jazyce

Interaction of the Zn(II)-cyclen complex with aminomethylphosphonic acid: Original simultaneous potentiometric and P-31 NMR data treatment

Popis výsledku anglicky

The interaction of aminomethylphosphonic acid (H(2)amp) with the Zn(II)-cyclen complex and the formation of ternary complexes was studied by potentiometry and P-31 NMR titrations. Data evaluation of each of the methods separately was found to be insufficient. Thus, data obtained from the both methods were simultaneously treated with the computer program OPIUM. The determined stability constants indicated only weak (logK similar to 3) coordination of aminomethylphosphonic acid through the phosphonate group. The chelating coordination mode with the participation of the amine group was not confirmed. In excess of Zn(II)-cyclen, the formation of dinuclear complexes, in which two Zn(II)-cyclen units are bridged by a phosphonate group, was observed and their presence was confirmed by mass spectrometry. Such a coordination motif is typical for phosphonates in the solid state and also for phosphatases.

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

2017

Kód důvěrnosti údajů

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

Název periodika

New Journal of Chemistry

ISSN

1144-0546

e-ISSN

—

Svazek periodika

41

Číslo periodika v rámci svazku

15

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

7

Strana od-do

7253-7259

Kód UT WoS článku

000406192800037

EID výsledku v databázi Scopus

2-s2.0-85026219871