The cover picture shows two polymorphs of a 2D Pb^II coordination polymer with Pb−S bonds. The thermodynamic product features a 2D architecture composed of quasi-2D (−Pb−S−)_n layers with weak, nonbonded Pb−S bonds, whereas the kinetic product forms a 2D structure containing intrinsic 2D (−Pb−S−)_n layers with Pb−S bonds. Moreover, the kinetic product exhibits higher photoconductivity than the thermodynamic product owing to the presence of the intrinsic 2D (−Pb−S−)_n layers. More information can be found in the Research Article by D. Tanaka and co-workers (DOI: 10.1002/chem.202400618).

Structural and electronic chirality in inorganic crystals from conceptualization to practical applications is described in this work. Chirality can be engineered across various scales, ranging from macrostructures down to atomic arrangements and even individual electrons. The interplay between structural and electronic chirality not only facilitates the design of highly efficient devices and chemical reactions but also offers insights into the origins of life. For further details, see the Review authored by W. Li, G. Li, and their collaborators (DOI: 10.1002/chem.202400436).

Charge it up: Indenoannulation of tridecacyclene afforded a saddle-shaped nanocarbon with one octagonal and multiple pentagonal rings. The compound can undergo seven reversible redox events (highlighted as electron flashes), facilitated by the aromatic stabilization provided by the non-benzenoid moieties in charged states (glowing non-hexagonal rings). The colors of the circles around the electrons are based on the color of the dication and dianion in solution. More information can be found in the Research Article by M. Kivala and co-workers (DOI: 10.1002/chem.202400696).

Exploring chirality in inorganic crystals is a fascinating endeavor, encompassing both structural and electronic chirality. This work offers a comprehensive review of the classification and construction of chirality in inorganic crystals. Additionally, it delves into the potential applications of these crystals within the realms of chemistry and physics, providing a thorough insight into their multifaceted implications and uses.

Chiral Metal-Organic Frameworks (CMOFs) is a popular material at present. Its preparation methods are various, mainly can be divided into direct synthesis and indirect synthesis. Because of its special structural advantages, it has been widely used in Enantiomer recognition, Enantiomer separation, Circularly polarized luminescence and Asymmetric catalysis.

Lanthanide-doped persistent luminescent scintillators (PersLSs) are promising luminescent materials for many emerging applications. This review summarizes the latest development of PersLSs, including their persistent luminescence mechanism, synthetic methods, tuning of optical properties, and their applications in the field of information security, bioimaging, as well as sensing.

Fluorination of amino acids deeply affects their self-assembly, enhancing, for instance, their tendency to aggregate into fibrils and gels. The conformational changes induced by fluorine can also change their functions, as well as the bioactivity of the deriving peptides and proteins, allowing to engineer bioinspired materials with specific and tunable properties.

Sulfur-coordinated coordination polymers (S−CPs) have unique optoelectrical properties resulting from inorganic (−M−S−)_n network structures. However, these structures have never been correlated with their electronic properties. We reveal the impact of the (−M−S−)_n networks in S−CPs on photoconductivity by comparing S−CP crystal polymorphs.

Indenoannulated tridecacyclene, an unprecedented saddle-shaped non-benzenoid nanocarbon, has been synthesized. Under electrochemical conditions, the compound undergoes seven reversible redox events facilitated by the aromatic stabilization provided by the non-benzenoid subunits in the charged states. Chemical oxidation and reduction afforded the corresponding dication and dianion, which were comprehensively characterized both in experiment and theory.

The attempted synthesis of a phosphaalumene is described. Due to the weak nature and high polarity of the P=Al π-bond, this species undergoes intramolecular C−H bond activation of the β-diketiminato ligand. The deleterious decomposition of this compound can be prevented by complexation with tetrahydrofuran, allowing for isolation of the Lewis acid–base adduct, which retains the reactivity of the P=Al π-bond toward polar and non-polar substrates.

Dearomative Diels-Alder cycloadditions between simple nitroarenes and cyclic silyloxydienes are carried out under high pressure at room temperature in the absence of any chemical promoter to generate 3D-scaffolds with exquisite exo-diastereoselectivity, the exo approach being characterized by a lower distortion of the substrates and by more favorable orbital interactions presumably between the nitro group and the dienic part.

Anchoring dipole orientation: In a binary nano-assembly, an anchoring effect between the energy donor (thermally activated delayed fluorescence emitter (2CzPN)) and the energy acceptor (J-aggregate of a cyanine dye (Cy-J)), has boosted the Förster resonance energy transfer (FRET) process. This was achieved through fixing the parallel orientation of their transition dipole moments to enhance the orientation factor (κ²).

C_3v-M₂BX₃ complexes (M=Li, Na, and K; X=F, Cl, and Br) may form in reduction of BX₃ via alkali metals. In M₂BX₃ species a collective and a normal bond form simultaneously. Bond dissociation energies prove that the collective bond is more stable than the normal bond. Here, isodensity surface of Laplacian of electron density shows electron concentration regions in K₂BBr₃.

In this study we synthesize and characterise two novel fluorescent norbornadiene derivatives bearing pyrene moieties. In depth spectral and physico-chemical characterisation is presented; moreover, their application as dyes for imaging of amyloid beta aggregates in Alzheimer's mice models is investigated, with implications for bioimaging and protein aggregate studies.

A chemically robust 2D MOF, IITKGP-60, has been strategically designed and developed, which showed excellent catalytic activity in three-component Strecker reaction and Knoevenagel condensation reaction under solvent-free condition. The significant effect of activation methods on its catalytic performances is specifically highlighted.

Previous results identified a 20-fold difference in conductance between phenanthrene derivatives with different anchoring group positions when measured upright between a gold surface and STM tip. This variation disappears when the phenanthrene derivatives lie flat between the tip and gold surface, all derivatives exhibit a conductance around 0.1 G₀.

The dative bond in the 10 valence-electron species AeN⁻ has a multireference character with high bond multiplicity in the triplet (³Π) ground state of CaN⁻ and SrN⁻ and singlet (¹Σ⁺) ground state of BaN⁻.

A novel P3-type oxide, K_0.57Cu_0.1Fe_0.1Mn_0.8O₂, is proposed to enhance K_xMnO₂ cathodes by addressing intrinsic issues and optimizing electrochemical properties. The co-doping strategy of multifunctional Cu and Fe element makes potassium-ion batteries more competitive for sustainable, low-cost energy storage. Additionally, the cathode can be adapted for sodium ion storage, offering a promising pathway for high-performance and cost-effective sodium-ion batteries.

Two octahedral porous organic cages with a significantly high specific surface area have been synthesized and their potential application in gas adsorption investigated by evaluating their capacity to adsorb SO₂, CO₂, C₂H₂, C₂H₄, and C₂H₆. They also proved successful in efficiently adsorbing static iodine (I₂) vapor.

Strongly absorbing NIR polymethines of tetraanionic nature bearing 1,3,2-dioxaborine rings and different electron-accepting end-groups were synthesized and characterized. Due to a highly symmetric electronic structure of tetraanionic chromophore, the obtained dyes possess exceptionally high molar absorption coefficients (exceeding half a million) and good fluorescence quantum yields (up to 0.13).

A novel silylarsinidene F₃SiAs and its isomer arsasilene FAsSiF₂ are generated via the reactions of laser-ablated silicon atoms with AsF₃ in low-temperature matrices and identified by matrix isolation IR spectroscopy as well as theoretical calculations. The isomerization of arsasilene FAsSiF₂ to silylarsinidene F₃SiAs under UV light (λ = 275 nm) was also observed.

Efficient catalytic assembly for cyclohepta[b]indoles is achieved through sequential transformations: ring-closing metathesis, catalytic hydrogenation, and acid-catalyzed ring expansion. Ring closing metathesis (RCM) and hydrogenation of oxindoles yield spirocyclohexane-3-oxindoles. A subsequent spontaneous ring expansion-aromatization sequence, catalyzed by either Lewis or Brønsted acid, results in cyclohepta[b]indoles or cyclohepta[b]indole-indoline conjugates.

A silyliumylidene ion stabilized by two Ni(0)- and Pd(0)-based σ-donating ligands was synthesized. Its particular coordination mode was characterized by a pyramidalized silicon center with a lone pair. Interestingly, a ligand exchange reaction leads to a significant change in the coordination mode to form a metal-based donor/acceptor-stabilized silyliumylidene ion, characterized by a vacant orbital at the Si center. Despite the stabilization by the two metal ligands, the silyliumylidene complex remains highly reactive.

This work presents a prototype of the in-depth analysis of the origin of magnetic interactions in two novel hexadecanuclear discrete multivalent [Fe₁₆] and heterometallic [Fe₆Ni₁₀] PBAs possessing low symmetry structures. Ab initio and BS-DFT calculations justify the magnetic behaviour caused due to the orthogonal arrangement of the interacting orbitals with a small contribution of the magnetic anisotropy.

Engineering modular DNA reaction networks. Functional units are flexibly selected, adjusted, and combined to construct modular DNA reaction networks for performing various signal processing tasks.

One-electron reduction of the macrocyclic gold(III) complex yields an elusive transient gold(II) species as shown by experimental (cyclic voltammetry, UV/Vis, NMR, EPR spectroscopy) and quantum chemical methods (density functional theory).

Herein, we describe B(C₆F₅)_3/CPA-catalyzed enantioselective aza-Diels–Alder reaction of 3,3-difluoro-2-Aryl-3H-indoles with unactivated dienes to access chiral 10,10-difluoro-tetrahydropyrido[1,2-a]indoles in good yields with good to excellent ee. The resulting cycloadducts containing an CF₂ unit could be further transformed into other important building blocks.

Linkage of two or three o-carborane moieties was achieved to form a series of carboranyldithioester bridging ligands. Direct B(3)-H activation on these ligands without the assistance of Ag(I) and alkali was realized with half-sandwich [Cp*IrCl₂]₂ and confirmed by single crystal structure analysis. Their SnCl₂-inserted derivatives further confirm the selective B(3)-H activation.

Stuck two-gether: The ^tBuPNNP expanded pincer ligand stabilizes a dicopper carbene complex by enforcing its dinuclear core. This dinuclear copper core stabilizes a Fischer carbene through π-backdonation to such an extent that it is unreactive even towards oxygen. However, we show that carbene transfer from this dinuclear complex towards PPh₃ is still possible.

Benefiting from the void-confinement effect and substrate enrichment of hollow structure, as well as the surface wrinkles, the as-prepared catalyst Pd@H-UiO-66-NH₂ exhibited satisfactory selectivity and stability in the hydrogenation of furfural to furfuryl alcohol.

In this study, the environmentally friendly green RPLC method was used as an alternative to classical RPLC methods in the determination of the pK_a values of some antihistamines of the piperazine group and compared with the data obtained with other methods. In addition, the greenness of the RPLC methods used was determined using green metric tools.