Stability constants of (RS)-1-isopropyl citrate metal complexes and phase transition of zinc (RS) 1-isopropyl citrate.
نویسندگان
چکیده
منابع مشابه
1-Isopropyl-4-tosylpiperazin-1-ium trifluoroacetate
In the title compound, C(14)H(23)N(2)O(2)S(+)·C(2)F(3)O(2) (-), the piperazine ring adopts a chair conformation. The crystal packing is stabilized by C-H⋯O and N-H⋯O hydrogen bonds between the cation and anion. The F atoms are disordered over two positions; the site occupancy factors are 0.55 (2) and 0.45 (2).
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The complexation reactions between Cu2+, Pd2+ and Ni2+ metal ions with promethazine (PM) in water or DMF were studied by the spectrophotometric methods at [(15, 25,35 and 45±0.1) °C]. The complexation process was optimized in terms of pH, temperature and contact time. The stoichiometry of the complex was found to be 1:1 (metal ion/ligand). The formation constants of the resulting complexes were...
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The title compound, C(15)H(16)N(2)O(4), was synthesized from a mixture of α-himachalene (2-methyl-ene-6,6,9-trimethyl-bicyclo-[5.4.O(1,7)]undec-8-ene) and β-himachalene (2,6,6,9-tetra-methyl-bicyclo-[5.4.0(1,7)]undeca-1,8-diene) which were isolated from an oil of the Atlas cedar (Cedrus atlantica). The asymmetric unit contains two independent mol-ecules. In each of the two mol-ecules, two O ato...
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The mol-ecule of the title compound, C(13)H(14)ClNO(2), is roughly planar [maximum deviation = 0.060 (2) Å] with the disordered Cl/CH(3) group asymetrically distributed on both sides of the mean plane. Indeed, the Cl and CH(3) located on the stereogenic carbon exchange each other with occupancy factors in the ratio 0.60:0.40. The whole crystal is a racemate. Non-classical C-H⋯O hydrogen bonds a...
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We study unification in the Randall-Sundrum scenario for solving the hierarchy problem, with gauge fields and fermions in the bulk. We calculate the one-loop corrected low-energy effective gauge couplings in a unified theory, broken at the scale MGUT in the bulk. We find that, although this scenario has an extra dimension, there is a robust (calculable in the effective field theory) logarithmic...
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ژورنال
عنوان ژورنال: Chemical and Pharmaceutical Bulletin
سال: 1991
ISSN: 0009-2363,1347-5223
DOI: 10.1248/cpb.39.1082