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This work demonstrates that the packaging material commonly called "bubble wraps" (Aeroplast) can be leveraged to serve as a probe to visible sunlight exposure. This probe relies on a newly developed layered metal selenide photocatalyst with the general formula (DMAH)2xMnxSn3–xSe6 (DMSe‐1) (x = 1.3–1.7; DMAH+ = dimethylammonium), featuring a narrow bandgap of 0.76 eV, in addition to an indicator dye and a reducing agent. The photochemically sensitive probe is introduced into the air‐filled compartments of bubble wraps and undergoes photocatalytic degradation, resulting in a chromatic response to sunlight exposure. The probe's sensitivity to variable irradiation doses can be adjusted by varying the amount of the photocatalyst. The color intensity correlates with the absorbed irradiation dose, allowing for qualitative assessment by the naked eye or quantitative measurement using the RGB color system. The results obtained from the new probe agree with those obtained from standard sunlight pyranometers (r = 0.98), with an average error of <15%. This suggests that beyond their use as protective coatings, bubble wraps can be successfully repurposed as visible light sensors. Furthermore, this study describes the initial use of metal chalcogenides as visible light probes, potentially paving the way for the development of innovative light‐sensitive materials. [ABSTRACT FROM AUTHOR]

The composite anion-exchange material MOR-1-HA (metal-organic resin-1-alginic acid) was investigated as sorbent for the capture of the methyl orange anion (MO-) from aqueous solutions. MOR-1-HA shows a remarkably high sorption capacity (up to 859 mg g-1) and rapid sorption kinetics, the fastest among the reported metal-organic sorbents. It is capable of absorbing MO- over a wide pH range (1-8) and, in addition, it exhibits significant MO- sorption affinity even in the presence of large excesses of competing anions (e.g., Cl-, NO3-, SO42-). The exceptional MO--sorption properties of MOR-1-HA arise not only from its highly porous structure and easily exchangeable Cl- anions, but also from a multitude of interaction effects, such as electrostatic interactions between MO- and the NH3+ groups of the material, hydration/dehydration, hydrophobicity/hydrophilicity, size and capacity of generating lateral interactions, and intercalation as revealed by theoretical studies. An ion-exchange column with a stationary phase containing MOR-1-HA and silica sand showed high efficiency for the removal of MO- from various types of aqueous samples. The column can be readily regenerated and reused for many runs with minimal loss (2.3-9.3%) of its exchange capacity. The simplicity of the MOR-1-HA/sand column and its high regeneration capability and reusability make it particularly attractive for application in the remediation of MO--contaminated industrial wastewater. [ABSTRACT FROM AUTHOR]

The development of efficient sensors for the determination of the water content in organic solvents is highly desirable for a number of chemical industries. Presented herein is a Mg2+ metal-organic framework (MOF), which exhibits the remarkable capability to rapidly detect traces of water (0.05-5% v/v) in various organic solvents through an unusual turn-on luminescence sensing mechanism. The extraordinary sensitivity and fast response of this MOF for water, and its reusability make it one of the most powerful water sensors known. [ABSTRACT FROM AUTHOR]

The initial employment of cyanato groups in higher oxidation state manganese cluster chemistry, in conjunction with the gem-diolate form of di-2-pyridylketone or 2,6-diacetylpyridine dioxime chelate ligands, has afforded structurally interesting MnII/III14 and MnII/III/IV16 clusters, respectively. In both complexes, the end-on bridging cyanato groups show an obvious preference in binding through their O atom, a significantly different ligation than that for the homoatomic-type N3- ligand. The Mn14 compound shows entirely visible out-of-phase signals below 5 K and large hysteresis loops below 2 K. [ABSTRACT FROM AUTHOR]

Review: [55 refs. [ABSTRACT FROM AUTHOR]

An abstract of the article "One-Step Conversion of 2-Amino-N′-arylbenzamidines into 3-Aryl-4-imino-3,4-dihydroquinazoline-2-carbonitriles Using 4,5-Dichloro-1,2,3-dithiazolium Chloride" by Styliana I. Mirallai and colleagues is presented.

K2MnSn2S6 exhibits a remarkably high exchange capacity, affinity, and selectivity for UO22+ ions. [ABSTRACT FROM AUTHOR]

The initial employment of cyanato groups in higher oxidation state manganese cluster chemistry, in conjunction with the gem-diolate form of di-2-pyridylketone or 2,6-diacetylpyridine dioxime chelate ligands, has afforded structurally interesting MnII/III14 and MnII/III/IV16 clusters, respectively. In both complexes, the end-on bridging cyanato groups show an obvious preference in binding through their O atom, a significantly different ligation than that for the homoatomic-type N3- ligand. The Mn14 compound shows entirely visible out-of-phase signals below 5 K and large hysteresis loops below 2 K. [ABSTRACT FROM AUTHOR]

The crystal structure of the title compound, C(11)H(18)O(6)S(2), was determined to investigate the effect of the eclipsed mesyl groups on the bond length of the vicinal quaternary C atoms. The two quaternary C atoms of the noradamantane skeleton and the two O atoms to which they are connected all located essentially in the same plane [maximum deviation 0.01 Å], resulting in an eclipsing conformation of the C-O bonds. The C-C bond of the quaternary C atoms is 1.597 (3) Å is considerably longer than the other C-C bonds of the mol-ecule.

The title compound, C(25)H(20)O(2), was synthesized by a Wittig reaction between triphen-yl[1-(pyren-1-yl)eth-yl]phospho-nium bromide and ethyl (2E,4E)-3-methyl-6-oxohexa-2,4-dienoate, in the presence of n-butyl lithium, followed by saponification. It was obtained pure in the all-trans configuration following crystallization from ethyl acetate. The asymmetric unit contains two independent mol-ecules (A and B), which are arranged almost parallel to each other within the crystal structure. The triene chain is not coplanar with the pyrene ring system, forming dihedral angles of 52.8 (1) and 42.2 (1)° for mol-ecules A and B, respectively. Inter-molecular hydrogen bonds between the carboxyl groups of the mol-ecules link them into centrosymmetric pairs, AA and BB, each with the R(2) (2)(8) graph-set motif.