Stereochemistry for engineering spin crossover: structures and magnetic properties of a homochiral vs. racemic [Fe(N3O2)(CN)2] complex.
Language
en
Article de revue
This item was published in
Dalton Transactions. 2015, vol. 44, n° 15, p. 6711-6714
Royal Society of Chemistry
English Abstract
The Schiff-base condensation of the R,R-(+)-diamine () with 2,6-diacetyl pyridine in the presence of FeII affords the macrocyclic complex [Fe(dpN3O2)(CN)2] () (dp = diphenyl) with ligand centred chirality comprising of a ...Read more >
The Schiff-base condensation of the R,R-(+)-diamine () with 2,6-diacetyl pyridine in the presence of FeII affords the macrocyclic complex [Fe(dpN3O2)(CN)2] () (dp = diphenyl) with ligand centred chirality comprising of a 1 : 1 mixture of LS 6- and HS 7-coordinate FeII centres. Variable temperature magnetic susceptibility and Mössbauer studies reveal that () undergoes an incomplete thermal SCO transition with a T1/2 = 250 K as well as a LIESST effect. In contrast its racemic counterpart () comprises of mostly LS FeII and exhibits no LIESST properties.Read less <
Origin
Hal imported