title: Stereochemistry for engineering spin crossover: structures and magnetic properties of a homochiral vs. racemic [Fe(N3O2)(CN)2] complex.
abstract: The Schiff-base condensation of the R,R-(+)-diamine () with 2,6-diacetyl pyridine in the presence of Fe(II) 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 Fe(II) 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 Fe(II) and exhibits no LIESST properties.
authors: Department of Chemistry, Brock University, 500 Glenridge Ave, St Catharines, Ontario L2S 3A1, Canada. mpilkington@brocku.ca.
authors: Qiang
authors: Q
authors: Wang
authors: Shari
authors: S
authors: Venneri
authors: Niloofar
authors: N
authors: Zarrabi
authors: Hongfeng
authors: H
authors: Wang
authors: Cédric
authors: C
authors: Desplanches
authors: Jean-François
authors: JF
authors: Létard
authors: Takele
authors: T
authors: Seda
authors: Melanie
authors: M
authors: Pilkington