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Influence of Metal Dilution on the Light‐Induced Spin Transition in Two 1D Chain Compounds: [Fe x Zn 1– x (btzp) 3 ](BF 4 ) 2 and [Fe x Zn 1– x (endi) 3 ](BF 4 ) 2 {btzp = 1,2‐Bis(tetrazol‐1‐yl)propane and endi = 1,2‐Bis(tetrazol‐1‐yl)ethane}
Author(s) -
Baldé Chérif,
Desplanches Cédric,
Grunert Matthias,
Wei Yongli,
Gütlich Philipp,
Létard JeanFrançois
Publication year - 2008
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.200800570
Subject(s) - chemistry , spin crossover , transition metal , excited state , spin transition , spin states , metal , analytical chemistry (journal) , zinc , crystallography , inorganic chemistry , atomic physics , biochemistry , physics , organic chemistry , chromatography , catalysis
The thermal and light‐induced spin transitions in [Fe x Zn 1– x (btzp) 3 ](BF 4 ) 2 and [Fe x Zn 1– x (endi) 3 ](BF 4 ) 2 {btzp = 1,2‐bis(tetrazol‐1‐yl)propane; endi = 1,2‐bis(tetrazol‐1‐yl)ethane} chain compounds have been investigated by magnetic susceptibility, photomagnetism and diffuse reflectivity measurements. These compounds display a thermal spin transition and the Light‐Induced Excited Spin State Trapping (LIESST) effect at low temperature. For each compound, the thermal spin transition temperature, T 1/2 , and the relaxation temperature of the photo‐induced high‐spin state, T (LIESST), have been systematically determined. A decrease in T 1/2 induces an increase in T (LIESST). The results are discussed and compared with some other “metal‐diluted” iron(II) spin crossover (SCO) complexes. (© Wiley‐VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2008)