Methylene-bis[(aminomethyl)phosphinic acids]: synthesis, acid-base and coordination properties
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11310%2F13%3A10139594" target="_blank" >RIV/00216208:11310/13:10139594 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1039/c2dt32045b" target="_blank" >http://dx.doi.org/10.1039/c2dt32045b</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1039/c2dt32045b" target="_blank" >10.1039/c2dt32045b</a>
Alternative languages
Result language
angličtina
Original language name
Methylene-bis[(aminomethyl)phosphinic acids]: synthesis, acid-base and coordination properties
Original language description
Three symmetrical methylene-bis[(aminomethyl)phosphinic acids] bearing different substituents on the central carbon atom, (NH2CH2) PO2H-C(R-1)(R-2)-PO2H(CH2NH2) where R-1 = OH, R-2 = Me (H2L1), R-1 = OH, R-2 = Ph (H2L2) and R-1, R-2 = H (H2L3), were synthesized. Acid-base and complexing properties of the ligands were studied in solution as well as in the solid state. The ligands show unusually high basicity of the nitrogen atoms (log K-1 = 9.5-10, log K-2 = 8.5-9) if compared with simple (aminomethyl) phosphinic acids and, consequently, high stability constants of the complexes with studied divalent metal ions. The study showed the important role of the hydroxo group attached to the central carbon atom of the geminal bis(phosphinate) moiety. Deprotonation of the hydroxo group yields the alcoholate anion which tends to play the role of a bridging ligand and induces formation of polynuclear complexes. Solid-state structures of complexes [H2N=C(NH2)(2)][Cu-2(H-1L2)(2)]CO3 center dot 10H(2
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
<a href="/en/project/GPP207%2F10%2FP153" target="_blank" >GPP207/10/P153: Geminal diphosphinates ? a route to improved complexation rates of macrocyclic ligands for biomedical applications</a><br>
Continuities
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
2013
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Dalton Transactions
ISSN
1477-9226
e-ISSN
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Volume of the periodical
42
Issue of the periodical within the volume
7
Country of publishing house
GB - UNITED KINGDOM
Number of pages
9
Pages from-to
2414-2422
UT code for WoS article
000313804200013
EID of the result in the Scopus database
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