Purification of organic compounds in high-quality crystal growth process
Anno: 2000
Autori: Salati C., Mignoni G., Zha M., Zanotti L., Mucchino C., Righini R., Foggi P., Paorici C.
Affiliazione autori: MASPEC-CNR, Parma, Italy; Department of Chemistry, University of Parma, Parma, Italy; LENS, Florence, Italy; INFM Department of Physic, University of Parma, Parma, Italy
Abstract: Solution grown organic crystals are usually affected by organic and inorganic impurities, which make difficult the achievement of optimized crystalline and optical properties. For this reason, organic materials must be subjected to specific treatments before being used in crystal growth process. Here, we report on a systematic study in which different techniques (recrystallization, solvent extraction, complexation by usual chelants) have been used to prepare crystal growth quality material for NMU. Purification process has been assisted by analysis of HPLC, UV-VIS absorption, ICP-MS and fluorescence. Results show that appropriate sequential treatments can largely improve the material purity as directly verified in the crystal growth process, where a remarkable increase of growth stability has been observed.
Giornale/Rivista: MATERIALS CHEMISTRY AND PHYSICS (PRINT)
Volume: 66 (2) Da Pagina: 303 A: 308
Maggiori informazioni: Instituto Nazionale di Fisica Nucleare, INFN. – The authors would like to thank the CNR-Finalised Project ‘MSTA-II’ and the Istituto Nazionale di Fisica della Materia (INFM) for their financial support.Parole chiavi: Crystal growth; Crystalline materials; Fluorescence; Optical properties; Purification; Recrystallization (metallurgy); Solvent extraction; Ultraviolet radiation, Organic crystals; Recrystallization, Organic compoundsDOI: 10.1016/S0254-0584(00)00332-1Citazioni: 4dati da “WEB OF SCIENCE” (of Thomson Reuters) aggiornati al: 2024-04-28Riferimenti tratti da Isi Web of Knowledge: (solo abbonati) Link per visualizzare la scheda su IsiWeb: Clicca quiLink per visualizzare la citazioni su IsiWeb: Clicca qui