Salen ligands are privileged scaffolds in transition metal catalysis due to their electronic tunability and capacity to stabilize diverse oxidation states. Herein, we report the synthesis and comparat...

Vanadyl-containing paddlewheel structures have recently joined the pool of molecular spin systems showing respectable coherence times (Tm). We extended the investigation of [PtVO(SOCR)4] (R = Me, Ph) ...

The degradation of the kinetically inert and potent greenhouse gas sulfur hexafluoride by a bimetallic main-group ambiphile (Lewis amphotere) is reported. Reaction of the bis(gallylene) 1 with SF6 at 80 °C results in the selective formation of the bimetallic gallium(II) fluoride 2. Irradiation with UV light or the addition of 4-dimethylaminopyridine (4-DMAP) accelerates the reaction, enabling it to proceed already at room temperature. Computations reveal a bimetallic activation scenario and shed light on the accelerating effect of 4-DMAP.

Rapid urbanization has intensified global energy demands, leading to elevated carbon dioxide emissions. Therefore, capturing and utilizing CO2 as a C1 feedstock is a viable way to synthesize value-add...

Recently, hybrid organic–inorganic copper(I) metal halides have attracted global attention due to their intriguing optical properties and low-cost solution processability. In this work, we report three hybrid organic–inorganic copper(I) bromides, [TMPA]2[Cu2Br4], [TMPA]4[Cu6Br10], and [TMPA]2[Cu4Br6], synthesized through a slow evaporation method using trimethylphenylammonium (TMPA+) as the organic cation. By precise control of the CuBr and TMPABr precursors, different copper halide [Cu2Br4]2–, [Cu6Br10]4–, and [Cu4Br6]2– structural units can be obtained. [TMPA]2[Cu2Br4], [TMPA]4[Cu6Br10], and [TMPA]2[Cu4Br6] demonstrate distinct blue, orange, and greenish-yellow light emission, respectively. The first two compounds have zero-dimensional (0D) crystal structures in centrosymmetric triclinic space group P-1 and monoclinic space group P21/n. In contrast, [TMPA]2[Cu4Br6] features a unique one-dimensional (1D) structure and crystallizes in the centrosymmetric monoclinic space group P21/c. Consequently, the observed greenish-yellow emission of [TMPA]2[Cu4Br6] is also unique, in contrast to the typical orange-red emission of 0D [Cu4Br6]-based compounds. This work provides insights into the design of copper halide light emitters and emphasizes the influence of structural dimensionality on photoluminescence. The tunable optical properties suggest the potential of these materials for multicolor photopatterning, information encryption, and anticounterfeiting applications.

Monocationic [RuCl(κ3-tpm)(L)(PPh3)]Cl (L = PPh3, 1; NCMe, 2; 1,3,5-triaza-7-phosphaadamantane (PTA), 3; phosphinoferrocene, 4; 3-methyl-pyrazole, 5; NH2(CH2)2OH, 6; NH2(CH2)2(4-C6H4OH) (tyramine), 7; cyclohexylamine, 8; NH2CH2CH2NH2, 9; tpm = tris-pyrazolylmethane) and bis-cationic ruthenium complexes [RuCl(κ3-tpm)(PPh3)(LL’)][NO3]2 (LL′ = ethylenediamine, 10; 1,10-phenanthroline, 11; 2-picolylamine, 12; N-phenyl-1-(2-pyridinyl)methanimine, 13) and [RuCl(κ3-tpm)(PPh3)(NCMe)2][NO3]2 (14) were evaluated for their anticancer potential. Complexes 4–9 and 13–14 are novel and were obtained in 72–98% yields from thermal exchange reactions of 1. They were characterized by IR and multinuclear NMR spectroscopy, and the solid-state structures of 4, 5, 6, 7, and 14 were determined by single-crystal X-ray diffraction. Complexes 3–8 and 10–14 were further examined for solubility and stability in aqueous media, and octanol/water partition coefficients. The complexes were assessed for their in vitro cytotoxicity on a panel of six cancer and two normal cell lines. Complex 1 and the ruthenium-ferrocenyl conjugate 4 revealed significant-to-moderate activity against the cancer cells, with IC50 values ranging from 1.8 to 25.2 μM. Mechanistic studies in A2780 cells included time-dependent cytotoxicity, intracellular ruthenium uptake, cell cycle analysis, autophagy induction, production of ROS (reactive oxygen species), and mitochondrial membrane potential measurements. Moreover, a detailed study was conducted to evaluate DNA and bovine serum albumin (BSA) binding capacity. Overall, the results revealed distinct potential mechanisms of action driven by ligand diversity, specifically mitochondrial uncoupling for 1 and 4, and apoptosis- and necrosis-induced cell death for 13 and 14.

The pursuit of nonlinear optical (NLO) crystals exhibiting an exceptional second-harmonic generation (SHG) response has been a persistent objective in scientific research. Herein, three chiral lead-ox...

Polarized photoluminescence spectroscopy was performed on high-quality undoped and Br-doped SnS single crystals to investigate recombination near the indirect band gap. Above the band gap, anisotropic...