Polyhedral and Macropolyhedral Metal-Rich Cobaltaboranes: A 25-Vertex Hourglass-Shaped Cluster.

In an effort to break the single-cage 16-vertex supraicosahedral barrier, we have explored the reaction of [Cp*CoCl], with [LiBH·THF], followed by thermolysis with [BH·SMe] [Cp* = η-CMe]. Although our objective to synthesize a high-nuclearity single-cage cluster was not achieved, we have isolated a 25-vertex macropolyhedral cluster [(Cp*Co)CoBH(CH)S] (). Cluster is an exceptional fused hourglass-shaped macropolyhedral cluster composing two icosahedral cores ([CoB] and [CoB]) and three tetrahedral cores [CoB].

Progress in Electrochemically Empowered C-O Bond Formation: Unveiling the Pathway of Efficient Green Synthesis.

(C-X) bonds (X=C, N, O) are the main backbone for making different skeleton in the organic synthetic transformations. Among all the sustainable techniques, electro-organic synthesis for C-X bond formation is the advanced tool as it offers a greener and more cost-effective approach to chemical reactions by utilizing electrons as reagents. In this review, we want to explore the recent advancements in electrochemical C-O bond formation.

Hetero-trimetallic complexes comprising bridging boryl and borylene ligands: an experimental and theoretical study.

In an effort to explore the coordination chemistry of the coordinative sulfur centers in -ruthenaborane [(Cp*Ru)(BH)(CSH)] (-1), we have thermolyzed -1 with group-6 metal carbonyls [M(CO)·THF] (M = Cr, Mo and W). The reaction of -1 with [Cr(CO)·THF] resulted in the formation of hetero-trimetallic triply bridging borylene [(Cp*Ru)(μ-CO)(μ-CHS-κS':κS''){Cr(CO)}(μ-BH)] (2), bridging boryl-borylene [(Cp*Ru)(μ-CO){(μ-BH(CHS)-κB:κS':κS'')}{Cr(CO)}(μ-BH)] (3), and sulfido bridged hetero-trimetallic complex [(Cp*Ru)(μ-CO){Cr(CO)}(μ-S)] (4). In 2, one side of RuCr-triangle features a μ-BH ligand while the other side is quadruply bridged by a methanedithiolato ligand in an unsymmetrical fashion.

Preparation and electrochemical characterization of polyaniline functionalized copper bridges carbon nanotube for supercapacitor applications.

Supercapacitor is an alternative power source due to its high energy density, fast charge/discharge time, low level of heating, safety, long-term operation stability. MWCNTs are used for supercapacitor applications due to their unique properties, structure, high surface area. In the present work nanocomposites were prepared from Cu modified MWCNTs (binary) from which ternary composite also prepared with HCI doped polyaniline (PANI).

α MnMoO₄/graphene hybrid composite: high energy density supercapacitor electrode material.

A unique and cost effective hydrothermal procedure has been carried out for the synthesis of hexahedron shaped α MnMoO4 and its hybrid composite with graphene using three different weight percentages of graphene. Characterization techniques, such as XRD, Raman and FTIR analysis, established the phase and formation of the composite. The electrochemical characterization of the pseudocapacitive MnMoO4 and the MnMoO4/graphene composites in 1 M Na2SO4 displayed highest specific capacitances of 234 F g(-1) and 364 F g(-1), respectively at a current density of 2 A g(-1).

Synthesis, characterization and electrochemical performance of graphene decorated with 1D NiMoO4 · nH2O nanorods.

One-dimensional NiMoO4 · nH2O nanorods and their graphene based hybrid composite with good electrochemical properties have been synthesized by a cost effective hydrothermal procedure. The formation of the mixed metal oxide and the composite was confirmed by XRD, XPS and Raman analyses. The morphological characterizations were carried out using FESEM and TEM analyses.

One pot synthesis of ilmenite-type NiMnO3-"nitrogen-doped" graphene nanocomposite as next generation supercapacitors.

NiMnO3-nitrogen doped graphene composite has been synthesized by a simple hydrothermal method and its supercapacitor performance investigated. The composite exhibits a specific capacitance of 750.2 F g(-1) in 1 M Na2SO4 at a scan rate of 1 mV s(-1).