Journal ArticleDOI
Mercury(II) dibromo-bis-(3-amino-5-mercapto-1,2,4-triazole): synthesis, crystal structure, and infrared characterization
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TLDR
The title compound C4H8N8S2HgBr2 was prepared and characterized by means of X-ray crystallography, and i.r. measurements as discussed by the authors, which exhibits discrete monometallic units with the 1,2,4-triazole molecule acting as a monodentate ligand.Abstract:
The title compound C4H8N8S2HgBr2 was prepared and characterized by means of X-ray crystallography, and i.r. measurements. The crystals are orthorhombic, space group Pbcn (no. 60) witha=9.707(2),b=8.609(1),c=16.128(2) A, andZ=4. The compound exhibits discrete monometallic units with the 1,2,4-triazole molecule acting as a monodentate ligand. The structure consists of units in which the mercury atom is coordinated in a distorted tetrahedral geometry by two sulfur and two bromine atoms. The NH and NH2 group of the 3-amino-5-mercapto-1,2,4-triazole unit are involved in intermolecular hydrogen bonds. Infrared bands are diagnostic of the coordination environment around the metal atoms.read more
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Journal ArticleDOI
Recent studies in the coordination chemistry of heterocyclic thiones and thionates
TL;DR: Heterocyclic thioamides usually occurring in their thioketo form are referred to as thiones and their corresponding anions as ‘thionates’.
Journal ArticleDOI
Au-nanoclusters incorporated 3-amino-5-mercapto-1,2,4-triazole film modified electrode for the simultaneous determination of ascorbic acid, dopamine, uric acid and nitrite
TL;DR: The modified biosensor was applied to the determination of AA, DA, UA and NO(2)(-) in urine and serum samples by using standard adding method with satisfactory results.
Journal ArticleDOI
Simultaneous determination of hydroquinone, catechol, resorcinol and nitrite using gold nanoparticles loaded on poly-3-amino-5-mercapto-1,2,4-triazole-MWNTs film modified electrode
TL;DR: In this paper, a simple and highly sensitive electrochemical method has been developed for the simultaneous determination of hydroquinone (HQ), catechol (CC), resorcinol (RC) and nitrite (NO2−).
Journal ArticleDOI
Formation Constants of Ternary Complexes Involving Some Metal Ions, Tricine, Dicarboxylic Amino Acids, as Well as N-(2-Acetamido)iminodiacetic Acid and 3-Amino-5-mercapto-1,2,4-triazole
TL;DR: In this paper, the solution equilibria of the ternary systems of ZnII, NiII, CoII, CdII, PbII, UO2II, CeIII, and LaIII with N-[tris(hydroxymethyl)methyl]glycine (tricine), N-(2-acetamido)iminodiacetic acid (H2ADA), and dicarboxylic amino acids (aspartic and glutamic) as primary ligands and 3-amino-5-mercapto-
Journal ArticleDOI
Equilibrium Studies of Ternary Systems Involving Divalent Transition Metal Ions, Aliphatic Acids, and Triazoles
TL;DR: The binary and ternary complexes of some M(II) ions with dicarboxylic aliphatic acids as primary ligands and some triazole compounds as secondary ligands have been studied pH-metrically in aqueous...
References
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Book
International tables for X-ray crystallography
Norman Fordyce McKerron Henry,Lonsdale, Kathleen, Dame,John S. Kasper,Caroline H. MacGillavry,Gerard D. Rieck,James A. Ibers,Walter C. Hamilton +6 more
Journal ArticleDOI
A semi-empirical method of absorption correction
TL;DR: An extension of Furnas's method is described in this paper, where the variation of intensity of an axial reflection as the crystal is rotated about the goniometer axis is used to give a curve of relative transmission T against azimuthal angle ϕ for the corresponding reciprocal lattice level.
Journal ArticleDOI
Supplement. Tables of bond lengths determined by X-ray and neutron diffraction. Part 2. Organometallic compounds and co-ordination complexes of the d- and f-block metals
TL;DR: In this paper, the average lengths for metal-ligand bonds are reported, together with some intraligand distances, for complexes of the d-and f-block metals, for 325 different bond types involving metal atoms bonded to H, B, C, N, O, F, Si, P, S, Cl, As, Se, Br, Te, or I atoms of the ligands.
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