The reaction of (3-py) 2Hg (1) with Cu (OAc) 2·H2O, in a 1: 2 molar ratio, afforded the isolation of (3-py) 2HgCu2 (OAc) 4n (2). This new bimetallic coordination polymer based on copper (II) - and mercury (II) -containing building blocks was characterized by an elemental analysis, IR and UV-Vis spectroscopies, a thermogravimetric analysis, and powder X-ray diffraction. For comparison, the UV-Vis properties of solid 1 are also reported. The structure of both 1 and 2 were established by single-crystal X-ray diffraction. The structural analysis of 2 shows a zig-zag 1D chain with alternating (3-py) 2Hg molecules and Cu2 (OAc) 4 fragments connected via N → Cu coordinative bonds. Further interchain Hg···O, H···π, and π···π interactions support a 2D layer of zig-zag chains.
Pop et al. (2026) studied this question.