دورية أكاديمية
Preparation of N,N-Dialkylcarbamato Lanthanide Complexes by Extraction of Lanthanide Ions from Aqueous Solution into Hydrocarbons
| العنوان: | Preparation of N,N-Dialkylcarbamato Lanthanide Complexes by Extraction of Lanthanide Ions from Aqueous Solution into Hydrocarbons |
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| المؤلفون: | Armelao, Lidia, Biagini, Paolo, Bottaro, Gregorio, Chiaberge, Stefano, Falvo, Paola, BELLI, DANIELA, LABELLA, LUCA, MARCHETTI, FABIO, SAMARITANI, SIMONA |
| المساهمون: | Armelao, Lidia, Belli, Daniela, Biagini, Paolo, Bottaro, Gregorio, Chiaberge, Stefano, Falvo, Paola, Labella, Luca, Marchetti, Fabio, Samaritani, Simona |
| سنة النشر: | 2014 |
| المجموعة: | ARPI - Archivio della Ricerca dell'Università di Pisa |
| مصطلحات موضوعية: | MRI CONTRAST AGENTS, WATER-EXCHANGE, CATALYZED HYDROAMINATION, COORDINATION POLYMERS, VARIABLE-TEMPERATURE, ORGANIC FRAMEWORKS, OXALATE-CARBONATE, CRYSTAL-STRUCTURE, METAL, DERIVATIVES |
| الوصف: | Lanthanides are easily extracted as N,N-dibutylcarbamato complexes from aqueous solutions of their chlorides into heptane solutions of dibutylamine saturated with CO2. The products are recovered in high yields and are soluble in hydrocarbons. The derivatives [Ln(O2CNBu2)3]n [Ln = Nd (1), Eu (2), Tb (3)], [NH2Bu2]2[Ln4(CO3)- (O2CNBu2)12] [Ln = Tb (4), Sm (5), Eu (6)], and [Sm4(CO3)(O2CNBu2)10], 7, have thus been obtained. The crystal and molecular structure of 4 has been solved; the samarium and europium complexes 5 and 6 were found to be isostructural. Mass spectra of the complexes 1−3, 4, and 7 (in MeCN/toluene) reveal that equilibria are present in solution. Compound 2 has been reacted in toluene with NHBz2 in the presence of CO2 affording [NH2Bz2][Eu(O2CNBz2)4], 8, through a ligand exchange process. By thermal treatment, 8 afforded [Eu(O2CNBz2)3]n, 9. With a similar procedure [Sm(O2CNBz2)3]n, 10, was obtained from 5. According to the photoluminescence study carried out on solid samples of 2, 4, 5, 7, and 8, the metal centered f−f transitions represent the only effective way to induce lanthanide luminescence in these complexes. |
| نوع الوثيقة: | article in journal/newspaper |
| وصف الملف: | STAMPA |
| اللغة: | English |
| العلاقة: | info:eu-repo/semantics/altIdentifier/pmid/24779510; info:eu-repo/semantics/altIdentifier/wos/WOS:000336240400012; volume:53; issue:10; firstpage:4861; lastpage:4871; numberofpages:11; journal:INORGANIC CHEMISTRY; http://hdl.handle.net/11568/570677Test; info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-84901026767 |
| DOI: | 10.1021/ic402936z |
| الإتاحة: | https://doi.org/10.1021/ic402936zTest http://hdl.handle.net/11568/570677Test |
| حقوق: | info:eu-repo/semantics/restrictedAccess |
| رقم الانضمام: | edsbas.1043C460 |
| قاعدة البيانات: | BASE |
| DOI: | 10.1021/ic402936z |
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