Premium
Crystal Structure and Optical Properties of a Lanthanum( III ) Complex of the Solvatochromic Dye “Nile Red”
Author(s) -
Døssing Anders,
Magnussen Magnus,
Frey Anne Mette
Publication year - 2006
Publication title -
european journal of inorganic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.667
H-Index - 136
eISSN - 1099-0682
pISSN - 1434-1948
DOI - 10.1002/ejic.200500584
Subject(s) - nile red , bathochromic shift , chemistry , solvatochromism , chromophore , lanthanum , lanthanide , fluorescence , photochemistry , quenching (fluorescence) , crystallography , inorganic chemistry , ion , molecule , organic chemistry , physics , quantum mechanics
A carbethoxy derivative of the push‐pull chromophore benzo[ a ]phenoxazin‐5‐one (Nile Red) forms chelate complexes of the trivalent lanthanide ions that are stable in coordinating solvents with a bathochromic shift of the intense charge‐transfer band in the Nile Red chromophore as a result. The complex formation results in quenching of the fluorescence from the free Nile Red ligand. Single crystals of a lanthanum( III ) complex have been grown and the X‐ray crystal structure showed that two Nile Red ligands are coordinated to the metal centre. (© Wiley‐VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2006)