Abstract
A pair of enantiomerically homochiral {(Co6Co4III)-Co-II} clusters featuring a butterfly-like structure, [(Co6Co4III)-Co-II(mu(3)-OH)(mu(3)-X)(S-pa)(4)(pdm)(6)(pdmH) (2)](ClO4)(4) center dot 3.5H(2)O (S-1) and [(Co6Co4III)-Co-II(mu(3)-OH)(mu(3)-X)(R-pa)(4)(pdm) (6)(pdmH)(2)](ClO4)(4) center dot 3.5H(2)O (R-1) (X = OH or OMe, S- or R-paH = S-or R-phenylalaninol and pdmH(2) = pyridine-2,6-diyldimethanol), have been synthesized and structurally characterized. They are the second largest homochiral Co clusters constructed by chiral ligands. They are also the first example of high-nuclearity homochiral Co clusters having both slow magnetic relaxation behaviour and ferroelectric property.