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Strong Hard X‐ray Magnetochiral Dichroism in Paramagnetic Enantiopure Molecules
Author(s) -
Ceolín Marcelo,
GobernaFerrón Sara,
GalánMascarós José Ramón
Publication year - 2012
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.201200786
Subject(s) - enantiopure drug , paramagnetism , absorbance , materials science , isotropy , dichroism , molecule , absorption (acoustics) , circular dichroism , x ray , crystallography , analytical chemistry (journal) , optics , condensed matter physics , physics , chemistry , organic chemistry , quantum mechanics , enantioselective synthesis , composite material , catalysis
Experimental evidence of magnetochiral dichroism is found in the hard X‐ray absorption spectra of paramagnetic enantiopure molecules. An isotropic sample of a {Tb[Ni(pro) 2 ] 6 } 3+ salt (pro = L ‐ or D ‐prolinate) shows up to a 1% difference in absorbance when a magnetic field (1 T) is applied parallel or anti‐parallel to the incident X‐ray beam at room temperature. This represents the largest magnetochiral dichroism ever observed in absolute and relative value.