Carboxylate Groups in a 90° Arrangement: 1,3‐Allenedicarboxylic Acid and Its Alkali Metal and Thallium(I) Coordination Compounds

Abstract

With its two carboxylate functions arranged in an 90°a ngle, 1,3-allenedicarboxylic acid (point group C 1 ) possesses a symmetry distinguished from all other dicarboxylic acids which are generally utilized as linker compounds in coordination polymers or MOFs. Crystal structures of coordination compounds with the 1,3-allenedicarboxylate dianion are reported herein for the first time. The diacid was converted with metal carbonates M 2 CO 3 to furnish the crystalline lithium, sodium, rubidium, cesium and thallium(I) compounds. In the solid state, their [a]

Thallium(I) Tropolonates: Synthesis, Structure, Spectral Characteristics, and Antimicrobial Activity Compared to Lead(II) and Bismuth(III) Analogues

“…A rich structural variety of thallium(I) compounds [ 20 , 21 , 22 , 23 , 24 , 25 , 26 , 27 , 28 ] makes them interesting for structural and materials research. The diversity stems from the possibility of the Tl + ion to adopt a wide range of coordination numbers, and the presence of 6 s 2 electrons enabling participation in Tl∙∙∙X (X–Tl, C, H or halogen atoms) secondary interactions.…”