1,5-Bis[(E)-1-(2-hydroxyphenyl)ethylidene]thiocarbonohydrazide monohydrate
نویسندگان
چکیده
In the title compound, C(17)H(18)N(4)O(2)S·H(2)O, the thio-urea derivative is almost planar, with an r.m.s. deviation for the non-H atoms of 0.057 Å. The hydroxyl groups lie to the same side of the mol-ecule as the thione S atom, a conformation that allows the formation of intra-molecular O-H⋯S and O-H⋯N hydrogen bonds. In the crystal structure, the thio-urea and water mol-ecules self-assemble into a two-dimensional array by a combination of O(water)-H⋯O(hydrox-yl), N-H⋯O(water) and O(water)-H⋯S hydrogen bonds and C-H⋯π inter-actions.
منابع مشابه
Determination of cadmium in biological samples by inductively coupled plasma atomic emission spectrometry after extraction with 1,5-bis(di-2-pyridylmethylene) thiocarbonohydrazide.
An inductively coupled plasma atomic emission spectrometric method for the determination of trace amounts of cadmium after extraction of the metal into isobutyl methyl ketone containing 1,5-bis(di-2-pyridylmethylene) thiocarbonohydrazide is described. The optimum extraction conditions were evaluated from a critical study of the effects of pH, concentration of extractant, shaking time and ionic ...
متن کامل1,5-Bis[1-(4-bromophenyl)ethylidene]thiocarbonohydrazide
The asymmetric unit of the title compound, C17H16Br2N4S, contains two independent mol-ecules in which the benzene rings form dihedral angles of 20.0 (1) and 55.3 (1)°. In the crystal, a pair of N-H⋯S hydrogen bonds link the two different independent mol-ecules into a dimer.
متن کاملOn-line preconcentration of rhodium on an anion-exchange resin loaded with 1,5-bis(2-pyridyl)-3-sulphophenyl methylene thiocarbonohydrazide and its determination in environmental samples.
A method for the determination of rhodium in different samples at trace levels is presented. The investigated metal is preconcentrated on a chelating resin microcolumn (1,5-bis(2-pyridyl)-3-sulphophenyl methylene thiocarbonohydrazide (PSTH) immobilized on an anion-exchange resin (Dowex 1x8-200)) placed in the autosampler arm. The modification of the autosampler in the tubing line and circuit al...
متن کامل1,5-Bis[1-(4-methoxyphenyl)ethylidene]thiocarbonohydrazide
In the title mol-ecule, C(19)H(22)N(4)O(2)S, the two benzene rings form a dihedral angle of 9.16 (13)°. In the crystal, pairs of weak inter-molecular C-H⋯S hydrogen bonds link the mol-ecules into centrosymmetric dimers, which are further linked through weak C-H⋯O inter-actions into sheets parallel to (012).
متن کاملOn-line preconcentration of mercury by sorption on an anion-exchange resin loaded with 1,5-bis[(2-pyridyl)-3-sulphophenyl methylene] thiocarbonohydrazide and determination by cold-vapour inductively coupled plasma atomic emission
1,5-Bis[(2-pyridyl)-3-sulphophenyl methylene] thiocarbonohydrazide (PSTH) immobilized on an anion-exchange resin (Dowex) has been used for the on-line preconcentration of mercury from biological samples and waters prior to its determination by inductively coupled plasma atomic emission spectroscopy. The metal was eluted from the column using a solution of 2 M HNO3 and mixed on-line with SnCl2. ...
متن کامل