Four 3D metal–organic frameworks derived from barium(ii) and isoflavonesulfonate ligands

Stabilization of the Anionic Metalloligand, [Ag6(mna)6]6– (H2mna = 2-Mercapto Nicotinic Acid), in cor, α-Po, and sql Nets Employing Alkaline Earth Metal Ions: Synthesis, Structure, and Nitroaromatics Sensing Behavior

“…The Ba–O bond distances are in the range of 2.616(4)–3.233(9) Å (av. 2.854 Å), (Supporting Information, Table S1), which is in agreement with those reported earlier. − ,− The barium centers are connected through the carboxylate oxygen atoms and bridging water molecules forming a one-dimensional Ba–O–Ba chain (Figure b). The Ba–Ba separation distances are in the range 4.304(3) Å–4.670(6) Å.…”

“…Thus, Ba(1) is eight-coordinated and Ba(2) is 10-coordinated. Barium exhibiting higher coordination is well-known in solid state chemistry. − ,− The eight-coordinated barium has three carboxylate oxygen atoms (O2, O5, O6) from two carboxylate groups, three bridging water molecules (μ 2 -H 2 O, O8, O10), and two terminal coordinated water molecules (O7, O9) and has a distorted square antiprismatic geometry (Supporting Information, Figure S9a). The 10-coordinated Ba(2), occupying the special position.…”

Controlled in situ synthesis of surface functionalized BaSO4 nanoparticles for improved bone cement reinforcement

“…In solution, part of the solvated Ba 2+ ions is coordinated with MSAH, while the rest of the solvated Ba 2+ ions remain free in solution. 19 Once SO 4 2À is generated in solution, it prefers to form a coordination bond with the free solvated Ba 2+ , rather than the Ba 2+ ions already coordinated with MSAH. As a result, the BaSO 4 nucleus is produced, followed by the growth of the BaSO The presence of MSAH coating on the BaSO 4 nanoparticle surface is qualitatively conrmed by FTIR (Fig.…”

Metal–organic coordination polymers based on Cs(I), Rb(I) and isoflavone-3′-sulfonate ligands

“…In our previous work, we have synthesized four 3D barium (II) coordination polymers based on isoflavonesulfonate ligands and investigated the influences of different ligands on their self-assembly manners [40]. In this paper, four metal-organic coordination polymers based on Cs(I), Rb(I) and isoflavone-3 0 -sulfonate ligands were designed and synthesized, namely CsL1(H 2 O) 3 O (4) [L1 = 7-ethoxy-4 0 -methoxyisoflavone-3 0 -sulfonate, L2 = 6-fluoro-4 0 -methoxyisoflavone-3 0 -sulfonate, L3 = 5,7-dihydroxy-6,4 0 -dimethoxyisoflavone-3 0 -sulfonate, Scheme 1].…”