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Solid‐State Luminescence and π‐Stacking in Crystalline Uranyl Dipicolinates
Author(s) -
Harrowfield Jack M.,
Lugan Noël,
Shahverdizadeh Gholam H.,
Soudi Ali A.,
Thuéry Pierre
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.200500671
Subject(s) - uranyl , chemistry , stacking , luminescence , solid state , pyridine , crystal structure , crystallography , ion , organic chemistry , optoelectronics , physics
Crystal structure determinations on the hydrated forms of the complexes M 2 UO 2 (dipic) 2 , M = H, Rb, Cs, dipic = dipicolinate = pyridine‐2,6‐dicarboxylate, all of which show strong solid‐state luminescence from the uranyl centre, have as a common feature extended π‐stacking arrays of the dipicolinate ligands. Comparisons with related but non‐luminescent complexes indicate that these stacking arrays may be associated with efficient energy transfer from the dipicolinate “antennae” to the uranyl unit. (© Wiley‐VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2006)