CAMPELLO, M. Paula C., Sara LACERDA, Isabel C. SANTOS, Giovannia A. PEREIRA, Carlos F. G. C. GERALDES, Jan KOTEK, Petr HERMANN, Jakub VANĚK, Přemysl LUBAL, Vojtěch KUBÍČEK, Eva TÓTH and Isabel SANTOS. Lanthanide(III) Complexes of 4,10-Bis(phosphonomethyl)-1,4,7,10-tetraazacyclododecane-1,7-diacetic acid (trans-H6do2a2p) in Solution and in the Solid State: Structural Studies Along the Series. Chemistry - A European Journal. Weinheim: WILEY-VCH Verlag, 2010, vol. 16, No 28, p. 8446-8465. ISSN 0947-6539.
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Basic information
Original name Lanthanide(III) Complexes of 4,10-Bis(phosphonomethyl)-1,4,7,10-tetraazacyclododecane-1,7-diacetic acid (trans-H6do2a2p) in Solution and in the Solid State: Structural Studies Along the Series
Name in Czech Komplexy 4,10-Bis(fosfonomethyl)-1,4,7,10- tetraazacyklododekan-1,7-dioctové kyseliny (trans-H6do2a2p) s ionty lanthanoidů v roztoku a pevném stavu: Strukturní studie v rámci série lanthanoidů
Authors CAMPELLO, M. Paula C. (620 Portugal), Sara LACERDA (620 Portugal), Isabel C. SANTOS (620 Portugal), Giovannia A. PEREIRA (620 Portugal), Carlos F. G. C. GERALDES (620 Portugal), Jan KOTEK (203 Czech Republic), Petr HERMANN (203 Czech Republic, guarantor, belonging to the institution), Jakub VANĚK (203 Czech Republic, belonging to the institution), Přemysl LUBAL (203 Czech Republic, belonging to the institution), Vojtěch KUBÍČEK (203 Czech Republic), Eva TÓTH (250 France) and Isabel SANTOS (620 Portugal).
Edition Chemistry - A European Journal, Weinheim, WILEY-VCH Verlag, 2010, 0947-6539.
Other information
Original language English
Type of outcome Article in a journal
Field of Study 10402 Inorganic and nuclear chemistry
Country of publisher Germany
Confidentiality degree is not subject to a state or trade secret
WWW URL URL
Impact factor Impact factor: 5.476
RIV identification code RIV/00216224:14310/10:00046211
Organization unit Faculty of Science
UT WoS 000280819100029
Keywords (in Czech) krystalové struktury; kinetika; lanthanoidy; MRI kontrastní látky; řešení struktury
Keywords in English crystal structures; kinetics; lanthanides; MRI contrast agents; structure elucidation
Changed by Changed by: prof. RNDr. Přemysl Lubal, Ph.D., učo 1271. Changed: 24/3/2011 21:54.
Abstract
Complexes trans-H6do2a2p (H6L)with transition metal and lanthanide(III) ions were investigated. Values of stability constants complexes are intermediate in the ligand series as a consequence of this ligand basicity. The solid-state structures of the ligand and nine lanthanide(III) complexes were determined by X-ray diffraction. The formation kinetics and the acid-assisted dissociation of several Ln(III)-H6L complexes were investigated. According to the 1H NMR pseudo-contact shifts for the Ce–Eu and Tb–Yb series, the solution structures of the complexes reflect the structures of the [Ce(HL)(H2O)]2– and [Yb(HL)]2– anions, respectively, found in the solid state. However, these solution NMR studies showed that there is no unambiguous relation between 31P/1H lanthanide induced shift (LIS) values and coordination of water in the complexes.
Abstract (in Czech)
Byly studovány komplexy trans-H6do2a2p (H6L) s ionty přechodných kovů a lanthanoidů. V rámci této serie ligandů, hodnoty konstant stability komplexů leží uprostřed, což je dáno postupnou změnou bazicity ligandů. Pomocí rentgenové difrakční analýzy byla stanovena struktura ligandů a devíti komplexů s ionty lanthanoidů v pevném stavu.Byla studována formační kinetika a kysele katalyzovaná disociace komplexů. 1H NMR pseudokontaktních posunů komplexů iontů lanthanoidů odpovídá struktuře těchto komplexů v pevném stavu. Naopak, roztoková NMR studie ukázala, že neexistuje přímý vztah mezi 31P/1H LIS a koordinací molekuly vody v komplexu.
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