Monoporphyrinate neodymium (III) complexes stabilized by tripodal ligand: synthesis, characterization and luminescence

Autor:	Hongshan He, Wai-Kwok Wong, Wing-Kit Lo, Jianping Guo, Wai Yeung Wong, King Fai Li, Kok Wai Cheah
Rok vydání:	2004
Předmět:	Lanthanide Photoluminescence Photochemistry Porphyrin Ion Inorganic Chemistry Metal Crystallography chemistry.chemical_compound Cyclopentadienyl complex chemistry visual_art Tripodal ligand Materials Chemistry visual_art.visual_art_medium Physical and Theoretical Chemistry Luminescence
Zdroj:	Inorganica Chimica Acta. 357:4379-4388
ISSN:	0020-1693
DOI:	10.1016/j.ica.2004.07.006
Popis:	A series of monoporphyrinate neodymium (III) complexes stabilized by anionic tripodal ligand (cyclopentadienyl)tris(dimethylphosphito)cobaltate(I) were prepared and characterized by IR, ESI-HRMS, UV–Vis and X-ray diffraction studies. Structural analyses revealed that the Nd3+ ion was seven-coordinate, surrounded by four nitrogen atoms from the porphyrinate dianion and three oxygen atoms from the anionic tripodal ligand. Photoluminescence studies showed that the porphyrinate dianion acting as a sensitizer absorbed the light and transferred the energy to the Nd3+ center, which then allowed the metal ion to emit efficiently at 885 and 1071 nm. The luminescent intensity of the complexes increases when there are strong electronic donating groups on the porphyrin rings but decreases with increasing polarity of the solvents.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::09a744bbc54743f7417d80edb93094b0 https://doi.org/10.1016/j.ica.2004.07.006 Zobrazit plný text záznamu Full Text from ScienceDirect