Journal of Inorganic and Nuclear Chemistry最新文献_第3页

Journal of Inorganic and Nuclear Chemistry Pub Date : 1981-01-01 DOI: 10.1016/0022-1902(81)80506-4

Dale G. Kalina, George W. Mason, E.Philip Horwitz

引用次数: 12

Ion exchange properties of hydrous ceria—III thermodynamics of anion exchange 含水铈的离子交换性质——ⅲ阴离子交换热力学

Journal of Inorganic and Nuclear Chemistry Pub Date : 1981-01-01 DOI: 10.1016/0022-1902(81)80405-8

N.Z. Misak, E.M. Mikhail

{"title":"Ion exchange properties of hydrous ceria—III thermodynamics of anion exchange","authors":"N.Z. Misak, E.M. Mikhail","doi":"10.1016/0022-1902(81)80405-8","DOIUrl":"10.1016/0022-1902(81)80405-8","url":null,"abstract":"<div>The thermodynamics of the <math><mtext>NO</mtext><msub><mi></mi><mn>3</mn></msub><msup><mi></mi><mn>−</mn></msup><mtext>Cl</mtext><msup><mi></mi><mn>−</mn></msup><mtext>, </mtext><mtext>NO</mtext><msub><mi></mi><mn>3</mn></msub><msup><mi></mi><mn>−</mn></msup><mtext>Br</mtext><msup><mi></mi><mn>−</mn></msup></math> and <math><mtext>NO</mtext><msub><mi></mi><mn>3</mn></msub><msup><mi></mi><mn>−</mn></msup><mtext>SCN</mtext><msup><mi></mi><mn>−</mn></msup></math> exchanges in hydrous ceria was studied. The <math><mtext>NO</mtext><msub><mi></mi><mn>3</mn></msub><msup><mi></mi><mn>−</mn></msup><mtext>Cl</mtext><msup><mi></mi><mn>−</mn></msup></math> and <math><mtext>NO</mtext><msub><mi></mi><mn>3</mn></msub><msup><mi></mi><mn>−</mn></msup><mtext>SCN</mtext><msup><mi></mi><mn>−</mn></msup></math> exchanges in this exchanger are enthalpy directed while the <math><mtext>NO</mtext><msub><mi></mi><mn>3</mn></msub><msup><mi></mi><mn>−</mn></msup><mtext>Br</mtext><msup><mi></mi><mn>−</mn></msup></math> exchange is entropy directed. Consideration of these results and other results on hydrous zirconia shows that although selectivity reversals of the “normal” selectivity sequence of monovalent anions do occur in the weak-base hydrous oxides, these reversals may be due to changes in the oxide entropy, which are ignored in the Eisenman model. Noncoulombic electrostatic interactions, which are also ignored in the model, are probably dominant in certain cases and seem to contribute considerably to the enthalpy and solid entropy changes. The Eisenman model seems to throw some light on the phenomena involved in anion exchanges on hydrous oxides.</div>","PeriodicalId":16275,"journal":{"name":"Journal of Inorganic and Nuclear Chemistry","volume":"43 8","pages":"Pages 1903-1907"},"PeriodicalIF":0.0,"publicationDate":"1981-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0022-1902(81)80405-8","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85901433","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 15

Preparation and X-ray characterization of pollucite (CsAlSi2O6) 污染石(CsAlSi2O6)的制备及x射线表征

Journal of Inorganic and Nuclear Chemistry Pub Date : 1981-01-01 DOI: 10.1016/0022-1902(81)80382-X

Sarah Ann Gallagher , Gregory J. McCarthy

引用次数: 34

Photochemical decomposition of K2[Cu(C2O4)2]·2H2O in the solid-state 固态中K2[Cu(C2O4)2]·2H2O的光化学分解

Journal of Inorganic and Nuclear Chemistry Pub Date : 1981-01-01 DOI: 10.1016/0022-1902(81)80662-8

Keiichi Tanaka

引用次数: 1

Preparation and crystal structure of sodium tris(p-amino-salicylato) dioxouranium(VI) hydrate 水合三(对氨基水杨酸)二氧铀(VI)钠的制备及晶体结构

Journal of Inorganic and Nuclear Chemistry Pub Date : 1981-01-01 DOI: 10.1016/0022-1902(81)80628-8

G. Bandoli, D.A. Clemente

{"title":"Preparation and crystal structure of sodium tris(p-amino-salicylato) dioxouranium(VI) hydrate","authors":"G. Bandoli, D.A. Clemente","doi":"10.1016/0022-1902(81)80628-8","DOIUrl":"10.1016/0022-1902(81)80628-8","url":null,"abstract":"<div>The synthesis and crystal structure of the title compound are described. The complex crystallizes in the trigonal system, space group P31c with a = 16.053(12), <math><mtext>c = 6.839(8) </mtext><mtext>A</mtext><mtext>̊</mtext></math> and Z = 2. The structure was solved by the heavy-atom method from 1252 counter reflections, and refined by least-squares methods to R 0.054. Six carboxylate oxygen atoms belonging to the three nearly planar p-amino-salicylate ions fill the equatorial region of the linear uranyl ion, giving the U atom an hexagonal-bipyramidal coordination overall. The hexagon is slightly puckered (± 0.05 Å), bond lengths and angles are as expected [U-O(apical) 1.78(e), U-O(eq) 2.47(2) Å]. The exact water content (and thereafter the Na+ coordination) is not entirely certain, but seems to approximate to 6H2O. The intramolecular hydrogen bond between the phenolic and a carboxylate oxygen atom, present in the free acid, is not destroyed by coordination.</div>","PeriodicalId":16275,"journal":{"name":"Journal of Inorganic and Nuclear Chemistry","volume":"43 11","pages":"Pages 2843-2846"},"PeriodicalIF":0.0,"publicationDate":"1981-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0022-1902(81)80628-8","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81969816","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 13

Thermodynamic studies on mixed complexes-I Complexes of uramildiacetic acid and of nitrilotriacetic acid with transition metals and glycine 混合配合物的热力学研究——ⅰ氨基二乙酸和硝基三乙酸与过渡金属和甘氨酸的配合物

Journal of Inorganic and Nuclear Chemistry Pub Date : 1981-01-01 DOI: 10.1016/0022-1902(81)80477-0

J.J.R. Fraústo da Silva, M.Cândida T. Abreu Vaz

引用次数: 0

A NMR spectroscopic study of some monothio-β-diketonate chelates and the corresponding β-diketones with a perfluoroethyl substituent 一些含全氟乙基取代基的单硫代β-二酮酸螯合物及相应的β-二酮的核磁共振光谱研究

Journal of Inorganic and Nuclear Chemistry Pub Date : 1981-01-01 DOI: 10.1016/0022-1902(81)80257-6

Manoranjan Das, Daniel T. Haworth

引用次数: 8

The electrochemical oxidation of anodic molybdenum into non-aqueous solutions of halogen 阳极钼的电化学氧化成卤素的非水溶液

Journal of Inorganic and Nuclear Chemistry Pub Date : 1981-01-01 DOI: 10.1016/0022-1902(81)80554-4

Jacob J. Habeeb, Colin Oldham, Dennis G. Tuck

引用次数: 4

Precipitation of metal-humate complexes 金属-腐植酸络合物的沉淀

Journal of Inorganic and Nuclear Chemistry Pub Date : 1981-01-01 DOI: 10.1016/0022-1902(81)80020-6

G. K. Pagenkopf, C. Whitworth

引用次数: 10

Vibrational spectra of TIX4− (X = Cl, Br, I) ions TIX4−(X = Cl, Br, I)离子的振动谱

Journal of Inorganic and Nuclear Chemistry Pub Date : 1981-01-01 DOI: 10.1016/0022-1902(81)80656-2

K. Arai, T. Chiba , K. Aida

引用次数: 4