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Ji, Mukan; Gao, Shang; Shi, Q.

doi:10.1023/a:1011565727061

Cited by 6 publications

(2 citation statements)

References 3 publications

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“…70 Crystal structures have also been reported for the rationally designed nonlinear optical materials [ML 2 ] (L = nicotinate;M = Zn, Cd) and related species. 73 The enthalpies of solution in water have been calculated for -α-methionine (Met) and its zinc complexes, [Zn(Met)Cl 2 ], 74 There has been a review of the various methods for preparing zinc gluconate in which it was proposed that the best method for industrial purposes would be synthesis via the paired electrolysis of glucose. This may have been the first reported crystal structure for a cadmium amino acid derivative natural nucleobase compound.…”

Section: Other Ligandsmentioning

confidence: 99%

“…72 The crystal structure for [ZnCl 2 (bdmpame)]ؒCH 2 Cl 2 has revealed that the nitrogen atom of the chiral -alanine methyl ester group is not co-ordinated, thereby giving rise to an eight-membered ring in which the nitrogen atoms of each pyrazole moiety are co-ordinated to the zinc centre. 73 The enthalpies of solution in water have been calculated for -α-methionine (Met) and its zinc complexes, [Zn(Met)Cl 74 There has been a review of the various methods for preparing zinc gluconate in which it was proposed that the best method for industrial purposes would be synthesis via the paired electrolysis of glucose. 75 The synthesis and molecular structure have been reported for the isomeleonitrile compound, [Bu 78 have been prepared, characterised, and studied as photodynamic anti-cancer agents.…”

Section: Other Ligandsmentioning

confidence: 99%

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9 Zinc, cadmium and mercury

Malito

2002

Annu. Rep. Prog. Chem., Sect. A: Inorg. Chem.

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IntroductionThis review highlights the 2001 literature for the zinc triad with emphasis on coordination and organometallic chemistry. For the purposes of this review, cluster complexes are defined as those which contain at least three transition metal atoms, connected by metal-metal bonds and/or by bridging ligands. Co-ordination chemistryThere has been a summary of the excitation and fluorescence spectra of zinc, cadmium, and mercury atoms, from which dependable values for potential parameters, like well-depths and ground-state vibrational frequencies have been derived. 1 There have also been reviews of some new zinc fluorescent probes excitable with visible light and highly zinc-selective fluorescent sensor molecules suitable for biological applications, 2 and the luminescence and electroluminescence of zinc() complexes with nitrogen-donor ligands. 3 Other reviews have focussed on primarily zinc phosphates and oxalates with open architectures, 4 and the zinc complexes of calix[6]arenes as biomimetic receptors for neutral molecules. 5 Group 15 donor ligandsThe solid-state structure for [Zn(en)Br 2 ] consists of an infinite zigzag chain, -ZnBr 2 -(en)-ZnBr 2 -(en)-, 1, in which the ethylenediamine shows only the trans conformation. 6 The crystal structure has also been determined for [Zn(en) 3 Cl 2 ]ؒ2H 2 O. 7 Syntheses and thermal analyses have been reported for [Cd(en) = meen, eten, pren, pn, ibn) and [Cd(ipren) 2 (C 4 O 4 )]. 8 The complexes [MCl 2 (OE) 2 ] (M = Zn, Cd) have been prepared and characterised. Microemulsions of these complex surfactants were studied in water/chloroform and water/benzene mixtures. 9 Complexation studies have been carried out for zinc() complexes of tren and the two new derivatives of tren, N,NЈ, amine and N,NЈ,NЉ-

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Section: Other Ligandsmentioning

confidence: 99%

Section: Other Ligandsmentioning

confidence: 99%

9 Zinc, cadmium and mercury

Malito

2002

Annu. Rep. Prog. Chem., Sect. A: Inorg. Chem.

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Determination and correlation of temperature and pH value dependent solubility of dl‐methionine

et al. 2020

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In order to provide basic data for the crystallization of dl‐methionine and understand the thermodynamic properties of dissolution, the solubility of dl‐methionine in water was measured by gravimetric method from 294.05 to 347.05 K and the solubility at different pH values under temperature 302.95 to 342.05 K was determined by elemental analysis in this work. The experimental data show that the solubility of dl‐methionine increases with increasing temperature as well as more acidic or basic pH values. The van't Hoff equation, modified Apelblat equation, λh equation, Wilson model, NRTL model, and UNIQUAC model were used to correlate the solubility data versus temperature. The melting temperature, enthalpy of fusion, enthalpy and entropy of dissolution were estimated from solubility data and it shows that the expression of solubility by enthalpy and entropy of dissolution gives more reasonable estimation and Wilson model gives a better correlation for these thermodynamic properties.

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Phase Chemistry and Thermochemistry on Coordination Behavior of Zinc Chloride with Leucine

Gao

Chen

et al. 2003

Chin. J. Chem.

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Ihe solubiity property of the ZaQ-Leu-HzO (Leu = Ga-leucine) system at 298.15 K in the whole concentration range war investigated by the semimicmphafe equilibrium method. The c o e sdubiity diagram and refractive index diagram were c o m i r u~. 'Ihe results indicated that there was ow complex formed in this system, namely, Z n ( h ) q . The complex is congruently soluble in water. Based on phase equilirium data, the complex WBS prepared. Its composition and properties were rharacterized by chemical analysis, elemental analysis, IR spectra, atid TGmU;. "he thennochemical properties of coordination reaction of zinc chloride with Ga-leucine were investigatd by a miupcalorimeter. The enthalpies of solution of Ga-leucine in water and its zinc complex at in6nite dilution and the enthalpy change of solid-liquid d o n were determined at 298.15 K. Tbe enthalpy change of solid phase reaction and the standard enthalpy of formation of zinc complex werecalculated. On the basis of e x p e w and calculated redts, three thermodynamic parameters ( the activation enthalpy , the activation entropy and the activation free energy), the rate mstant and three kinetic parameters (the activation energy, the preexponential constant and the reaction order) of the reaction, and the standard enthalpy of formation of Zn(Leu)'+ (aq) were obtained.The results showed that the title reaction took place easily at studied temperature.

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Cited by 6 publications

References 3 publications

9 Zinc, cadmium and mercury

9 Zinc, cadmium and mercury

Determination and correlation of temperature and pH value dependent solubility of dl‐methionine

Phase Chemistry and Thermochemistry on Coordination Behavior of Zinc Chloride with Leucine

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