Harkesh B Singh

Dichalcogenides are important intermediates in the catalytic cycle of the Glutathione peroxidase (GPx), the enzyme regulating the level of reactive oxygen species (ROS). Due to their redox sensitivity, dichalcogenides are...

The conjugation of active biomolecules provides insight into their bioreactivity, leading to many applications in biotechnology and materials science. Herein, we report L-selenocystine (SeC) bioconjugates of lipoic acid (universal antioxidant)...

Herein, a new tellurium and mercury containing mercuraazametallamacrocycle has been prepared via (2+2) condensation of bis(o-aminophenyl)telluride and bis(o-formylphenyl)mercury(II). The isolated bright yellow solid of mercuraazametallamacrocycle has adopted unsymmetrical figure-of-eight conformation...

Owing to the strict hard/soft dichotomy between the lanthanoids and tellurium atoms, and the strong affinity of lanthanoid ions for high coordination numbers, low-coordinate, monomeric lanthanoid tellurolate complexes have remained...

The study of controlling the morphology for designing advanced supramolecular architectures by tuning the molecular motif at the elemental level has been rarely carried out. Here, we report the synthesis...

The controlled oxidation reaction of L-selenocystine under neutral pH conditions affords selenocysteine seleninic acid (3-selenino-L-alanine) which is characterized also by means of single-crystal X-ray diffraction. This technique shows that selenium...

Three organoselenium and organotellurium compounds containing ortho substitutents, namely, bis(2-nitrophenyl) selenide, CHNOSe, 2, bis(2-aminophenyl) selenide, CHNSe, 3, and bis(2-aminophenyl) telluride, CHNTe, 7, have been investigated by both structural and theoretical...

In the title salt, di-μ-oxido-bis-{2,6-bis-[(di-methyl-amino)-meth-yl]phenyl-κ }tellurium(-IV) bis[tri-chlorido-(dimethyl sulfoxide-κ)platinate(II)], (CHNOTe)[PdCl(CHOS)], which crystallizes in the triclinic space group , each Te atom is in a distorted five-coordinated TeONC square-pyramidal geometry (τ values...

The intramolecularly coordinated homoleptic diorgano selenide bis{2,6-bis[(dimethylamino)methyl]phenyl} selenide, CHNSe or RSe, where R is 2,6-(MeNCH)CH, 14, was synthesized and its ligation reactions with Pd and Hg precursors were explored. The...

The salt metathesis reaction of two equivalents of 8-lithioquinoline (CHNLi) with HgBr afforded bis(quinoline-8-yl)mercury, [(CHN)Hg]. Bis(quinoline-8-yl)mercury has been used for the synthesis of a series of heteronuclear complexes of the...