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Structural and Photophysical Characterisation of fac ‐[Tricarbonyl(chloro)(5,6‐epoxy‐1,10‐phenanthroline)rhenium( I )]
Author(s) -
Martí Angel A.,
Mezei Gellert,
Maldonado Lorena,
Paralitici Giovanni,
Raptis Raphael G.,
Colón Jorge L.
Publication year - 2005
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.200400531
Subject(s) - chemistry , rhenium , phenanthroline , luminescence , spectroscopy , hydrogen bond , nuclear magnetic resonance spectroscopy , crystal structure , crystallography , epoxy , proton nmr , stereochemistry , inorganic chemistry , molecule , organic chemistry , physics , optoelectronics , quantum mechanics
The structural and spectroscopic characterisations of fac ‐[Re(phen)(CO) 3 Cl] ( 1 ) (phen = 1,10‐phenanthroline), fac ‐[Re(ephen)(CO) 3 Cl] ( 3 ) [ephen = 5,6‐epoxy‐1,10‐phenanthroline ( 2 )] and ephen are reported. The appearance of weak hydrogen bond networks in the crystal lattice of [Re(ephen)(CO) 3 Cl] and ephen are discussed. Two different isomers of [Re(ephen)(CO) 3 Cl] were identified by IR and NMR spectroscopy. Coincidental resonances were differentiated for these complexes by temperature‐dependent NMR spectroscopy. Recrystallisation of the crude material allowed the separation of the two isomers. The spectroscopic data permitted the calculation of radiative and nonradiative luminescence rate constants which are consistent with the energy gap law. (© Wiley‐VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2005)