Phosphinate Analogues of IDA and NTA with Low Basicity of Nitrogen Atom: Acid-Base and Complexation Properties
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11310%2F14%3A10277905" target="_blank" >RIV/00216208:11310/14:10277905 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1080/10426507.2014.904864" target="_blank" >http://dx.doi.org/10.1080/10426507.2014.904864</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1080/10426507.2014.904864" target="_blank" >10.1080/10426507.2014.904864</a>
Alternative languages
Result language
angličtina
Original language name
Phosphinate Analogues of IDA and NTA with Low Basicity of Nitrogen Atom: Acid-Base and Complexation Properties
Original language description
Analogues of iminodiacetic acid (H2IDA) and nitrilotriacetic acid (H3NTA) bearing two (hydroxomethyl) methylphosphinate or (2-carboxyethyl) methylphosphinate groups were synthesized. Their acid-base and coordination properties with divalent metal ions (Cu2+, Ni2+ and Zn2+) were studied by potentiometry. The compounds exhibit very low basicity of the amino groups (pK(a) = 6.2-7.6) due to presence of two electron-withdrawing methylphosphinate groups and, consequently, a low stability of the complexes. Inthe case of IDA-analogues, the low complex stability results in precipitation of metal hydroxides in neutral region. As expected, NTA-analogues form more stable complexes and, thus, they were also studied in the alkaline region. Presence of additional carboxylate in the 2-carboxyethylphosphinic acid groups results in the formation of dinuclear complexes. Solid-state structures of two compounds were determined by X-ray diffraction analysis. The compounds are protonated on the nitrogen ato
Czech name
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Czech description
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Classification
Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
CA - Inorganic chemistry
OECD FORD branch
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Result continuities
Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>Z - Vyzkumny zamer (s odkazem do CEZ)<br>S - Specificky vyzkum na vysokych skolach<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2014
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Phosphorus, Sulfur and Silicon and the Related Elements
ISSN
1042-6507
e-ISSN
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Volume of the periodical
189
Issue of the periodical within the volume
7-8
Country of publishing house
GB - UNITED KINGDOM
Number of pages
13
Pages from-to
933-945
UT code for WoS article
000341577500010
EID of the result in the Scopus database
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