Utilizing a bent bis(naphthalene) and hydroxy-based dicarboxylate linker (mbhna) and two different tridentate polypyridyl ligands (bpma and bpta), four new coordination polymers (CPs) of Zn(II) and Cd(II) namely, [Zn(mbhna 4), are reported. Based on their solidstate molecular structures determined by single-crystal X-ray diffractometry, all are found to be helical 1D CP; interestingly, 4 crystallizes in a chiral space group, showcasing the formation of a chiral CP from achiral components. For the presence of naphthalene moieties in mbhna, their excellent emissive nature is studied in different solvents and further utilized to selectively detect aromatic amines, particularly 4-nitroaniline in water with detection limits at the ppm level. Utilizing the Stern-Volmer plots, spectral overlap, and competitive test, their mechanism of action has been established. Furthermore, these are recyclable with good stability after sensing experiments.

Treatment of a dirhodium analogue of pentaborane(9), [(Cp*Rh) 2 B 3 H 7 ] (nido-1; Cp* = η 5 -C 5 Me 5 ), with [Fe 2 (CO) 9 ] at room temperature led to the formation of [(Cp*Rh) 2 -Fe(CO) 3 (μ-CO)B 3 H 2 Cl] (2) and the metal-rich metallaborane [(Cp*Rh) 2 Fe(CO) 3 Fe(CO) 2 (μ-CO) 2 B 2 H 2 ] (3). When the same reaction was carried out at moderate temperature, two metal-rich metallaboranes, [(Cp*Rh) 3 Fe(CO) 2 (μ 3 -CO) 2 B 2 HX] 4 (X = H) and 5 (X = Cl), and a heterometallic μ 9 -boride cluster, [(Cp*Rh) 3 -(RhCO) 3 Fe(CO) 3 (μ-CO) 3 B 3 H 2 ] (6), were obtained. Compounds 4 and 5 can be viewed as cubane clusters with 62 cluster valence [a] Scheme 1. Synthesis of heterometallic clusters 2-8 and mixed-metal clusters 10 and 11. display a single resonance for the two B-H t protons at δ = 9.16 ppm and a downfield chemical shift at δ = 111.9 ppm for the two chemically inequivalent boron atoms. The IR spectra of 2 and 3 show characteristic bands for B-H t at 2486 and 2454 cm -1 , respectively, which is consistent with previously reported compounds. [15][16][17][18] In addition, the IR spectra show absorption bands for the terminal and bridging carbonyl ligands.The structural compositions of both 2 and 3 were confirmed by single-crystal X-ray crystallographic analysis (Figure 1). Crystals of 2 and 3 were grown by the slow evaporation of hexane under argon. The core structures (octahedral) of 2 and 3 are very similar to those of [(μ 3 -CO)(η 5 of 3 consists of two iron and two boron atoms and the axial positions are occupied by two rhodium atoms. All the metalmetal distances in 3, for example, Fe1-Fe2 of 2.581(3) Å, Fe1-Eur.

Utilizing the angular and rigid furan dicarboxylate (fdc2-), a new series of four (1-4) metal-organic coordination networks (MOCNs) is synthesized in good yields through a one-pot self-assembly reaction in methanol...

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In this paper we report the synthesis, characterization, properties and application of four new Zn(II) and Cd(II) based luminescent metal-organic probes, {[Zn(mbhna)(bpea)]}n (1), {[Cd(mbhna)(bpea)]}n (2), {[Zn(mbhna)(bpba)].CH3OH.H2O}n (3) and {[Cd(mbhna)(bpba)]}n (4),...