Fluorophobic effect in metallomesogens - The synthesis and mesomorphism of Ag, Au, Cu, Fe, Pd, and Pt fluorous isocyanide complexes

Article abstract of DOI:10.1002/ejic.200701341

The synthesis of Ag(CNAr)₂BF₄, Ag(CNAr) ₂NO₃, AuCl-(CNAr), CuCl(CNAr), [CuCl(CNAr) ₂]₂, Fe(CO)₄CNAr, trans-[PdI ₂(CNAr)₂], and trans-[PtI₂(CNAr)₂] complexes containing the fluorous isocyanide ligand CNAr [Ar = 4-F(CF ₂)₈-(CH₂)₄OC₆H ₄] and the examination of the mesomorphic properties of these novel fluorous organometallics are reported. The fluorous isocyanide ligand is mesomorphic, as opposed to its hydrocarbon analogue. In general, the fluorophobic effect enhances the microsegregation in the investigated organometallic/isocyanide complexes, as compared to their hydrocarbon analogues. The fluorous mesophases are stable over a wider temperature range and exhibit higher transition temperatures. Wiley-VCH Verlag GmbH & Co. KGaA, 2008.