Two Three‐Dimensional Actinide–Silver Heterometallic Coordination Polymers Based on 2,2′‐Bipyridine‐3,3′‐dicarboxylic Acid with Helical Chains Containing Dimeric or Trimeric Motifs

Abstract

Under hydrothermal conditions, two new 3D actinide–silver (An–Ag) heterometallic coordination polymers, namely, [Ag(UO2)2(µ2‐OH)(bpdc)2(H2O)2]n (1) and [Ag3Th6(µ3‐O)(µ3‐OH)(µ2‐OH)6(bpdc)6(NO3)6·H2O]n (2, H2bpdc = 2,2′‐bipyridine‐3,3′‐dicarboxylic acid), were assembled through a hard–soft recognition strategy. Compounds 1 and 2 were characterized by single‐crystal X‐ray diffraction, powder X‐ray diffraction, and infrared spectroscopy. Both compounds are constructed through the bridging of infinite polynuclear An–bpdc chiral helical chains by AgI cations. Compound 2 represents the first ThIV–AgI heterometallic coordination polymer. Furthermore, the thermal stability and luminescence properties of 1 were studied.

1,2,4-Triazolyl-4-acetate: a ditopic ligand combining soft and hard donor sites in homometallic (AgI) and heterometallic (AgI/UVI) coordination polymers

“…Such a synthetic strategy seems to be more rational than those used with previously reported Ag I /U VI coordination polymers, where silver(I) centers serve as a charge-balancing counterion [24][25][26] or play an additional singlenode binding role. [27][28][29][30] The contemporary importance of uranium coordination chemistry concerns both uranium isotope enrichment processing and nuclear waste disposal. 31 Storage of large quantities of waste is not the best solution, but a reasonable alternative strategy can be that of recycling/reprocessing into functional materials for civil or commercial applications.…”

Heterometallic coordination polymers: Treatment activity on diabetic foot by reducing the excess inflammatory response in the plantar tissue

“…The structure and design of metallic coordination polymers (CPs) based on crystal engineering are currently of interest in the field of supramolecular chemistry and coordination chemistry. [5][6][7][8] The increasing interest in this field is justified not only by their valuable structures, but also their potential applications in luminescence, catalysis, and biochemistry, and particularly in modern medicinal chemistry. [9][10][11][12][13][14][15] Among the series of compounds fabricated, functional complexes attract great attention due to their potentially valuable drug applications.…”

Novel Heterometallic Uranyl-Transition Metal Materials: Structure, Topology, and Solid State Photoluminescence Properties

“…5 For example, Farha et al employed nonplanar organic ligands such as the pseudo-four-fold symmetric linker 4,4′,4′′,4′′′-(pyrene-1,3,6,8-tetryl)tetrabenzoic acid (H 4 TBA-Py) 24 to generate a noninterpenetrated uranyl-containing MOF with a tbo topology and large open cavities (17, 24, and 39 Å) and by using the tritopic 5′-(4-carboxyphenyl)-2′,4′,6′-trimethyl-[1,1′:3′,1′′-terphenyl]-4,4′′-dicarboxylic acid 32 ligand to form a mesoporous U-MOF containing large icosidodecahedral cavities with internal diameters of 50 and 62 Å. Another example, reported by Shi et al, 33 Therein, the nitrogen atoms of the pyridine rings coordinated to the Ag + metal center, and the carboxylates coordinated to the actinides, to provide additional bonding to increase framework dimensionality. In the present study, the 2,2′bipyridine-3,3′-dicarboxylic acid (H 2 L) was employed as the polytopic ligand as it exhibits several moieties where coordination to a metal center is possible, carboxylates and nitrogens from the bipyridine rings.…”