Halochromic coordination polymers based on a triarylmethane dye for reversible detection of acids.

ABSTRACT: Chromeazurol B (Na₂HL) is a pH-sensitive (halochromic) dye based on a hydroxytriarylmethane core and two carboxylate functional groups, which makes it suitable for the synthesis of coordination polymers. Two new coordination polymers [NaZn₄(H₂O)₃(L)₃]·3THF·3H₂O (1) and [Zn₃(H₂O)₃(μ₂-OH₂)(μ₃-OH)(HL)₂(H₂L)]·2THF·3H₂O (2) incorporating Chromeazurol B linkers have been prepared and characterised. The structure of 1 comprises pentanuclear heterometallic {Zn₄Na} nodes linked by six L^3- anions to give a layered structure with a honeycomb topology. 2 crystallizes as a double-chain ribbon (ladder) structure with tw

SUBMITTER: Zavakhina MS 

PROVIDER: S-EPMC5436038 | biostudies-literature | 2017 Jan

REPOSITORIES: biostudies-literature