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Structure of [NH3(CH2)4NH3]2P4O12·2H2O [NH3(CH2)4NH3]2P4O12·2H2O的结构
European Journal of Solid State and Inorganic Chemistry Pub Date : 1998-11-01 DOI: 10.1016/S0992-4361(99)80004-6
E.H. Soumhi , I. Saadoune , A. Driss , T. Jouini
{"title":"Structure of [NH3(CH2)4NH3]2P4O12·2H2O","authors":"E.H. Soumhi ,&nbsp;I. Saadoune ,&nbsp;A. Driss ,&nbsp;T. Jouini","doi":"10.1016/S0992-4361(99)80004-6","DOIUrl":"10.1016/S0992-4361(99)80004-6","url":null,"abstract":"<div><p>After a short survey of what is the present state of the cyclophosphates associated with the organic molecule NH<sub>2</sub>(CH<sub>2</sub>)<sub>4</sub>NH<sub>2</sub>, we report chemical preparation and crystal structure for a new example of such compounds. [NH<sub>3</sub>(CH<sub>2</sub>)<sub>4</sub>NH<sub>3</sub>]<sub>2</sub>P<sub>4</sub>O<sub>12</sub>.2H<sub>2</sub>O is monoclinic (S.G. : P2<sub>1</sub>/n), with Z = 2 and the following unit-cell parameters : a = 7.6728(8) Å, b = 18.962(3) Å, c = 7.9789(9) Å β = 111.751(9)°. Bidimensional layer arrangement of P<sub>4</sub>O<sub>12</sub> rings connected to the water molecules thanks to weak H-bonds run parallel to the <strong>ab</strong> plane. The organic groupements located between these inorganic planes perform the three-dimensional cohesion by NH····O hydrogen bonds.</p></div>","PeriodicalId":100507,"journal":{"name":"European Journal of Solid State and Inorganic Chemistry","volume":"35 10","pages":"Pages 629-637"},"PeriodicalIF":0.0,"publicationDate":"1998-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/S0992-4361(99)80004-6","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72815672","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: 8
Annual contents 一年一度的内容
European Journal of Solid State and Inorganic Chemistry Pub Date : 1998-11-01 DOI: 10.1016/S0992-4361(99)80015-0
{"title":"Annual contents","authors":"","doi":"10.1016/S0992-4361(99)80015-0","DOIUrl":"https://doi.org/10.1016/S0992-4361(99)80015-0","url":null,"abstract":"","PeriodicalId":100507,"journal":{"name":"European Journal of Solid State and Inorganic Chemistry","volume":"35 10","pages":"Pages 757-760"},"PeriodicalIF":0.0,"publicationDate":"1998-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/S0992-4361(99)80015-0","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"92107182","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
X-ray powder structure determination of Li6P6O18·3H2O Li6P6O18·3H2O的x射线粉末结构测定
European Journal of Solid State and Inorganic Chemistry Pub Date : 1998-11-01 DOI: 10.1016/S0992-4361(99)80009-5
M. Toumi , F. Hlel , T. Ben Chaabane , L. Smiri , Y. Laligant , J. Emery
{"title":"X-ray powder structure determination of Li6P6O18·3H2O","authors":"M. Toumi ,&nbsp;F. Hlel ,&nbsp;T. Ben Chaabane ,&nbsp;L. Smiri ,&nbsp;Y. Laligant ,&nbsp;J. Emery","doi":"10.1016/S0992-4361(99)80009-5","DOIUrl":"10.1016/S0992-4361(99)80009-5","url":null,"abstract":"<div><p>Preparation, characterization by X-ray diffraction, IR absorption, DTA-GTA analysis and ab-initio crystal structure determination are reported for a new lithium cyclohexaphosphate hydrate Li<sub>6</sub>P<sub>6</sub>O<sub>18</sub>·3H<sub>2</sub>O. It crystallizes in a trigonal (rhomboedral) cell (space group R 3¯m No 166, Z = 6) with a = 15.7442(2) Å, c = 12.5486(2) Å. X-ray powder diffraction pattern data was refined by Rietveld profile technique and lead to R<sub>Bragg</sub> = 0.09. The crystal structure of Li<sub>6</sub>P<sub>6</sub>O<sub>18</sub>·3H<sub>2</sub>O is built up from [P<sub>6</sub>O<sub>18</sub>]<sup>6-</sup> ring anions, having the 3m symmetry, alternating along the 3¯ axis with rings made of six LiO<sub>4</sub> tetrahedra and six LiO<sub>5</sub> pseudo square pyramids sharing common edges.</p></div>","PeriodicalId":100507,"journal":{"name":"European Journal of Solid State and Inorganic Chemistry","volume":"35 10","pages":"Pages 689-697"},"PeriodicalIF":0.0,"publicationDate":"1998-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/S0992-4361(99)80009-5","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81177297","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: 7
Characterisation of carbon fibres grown from carbonaceous gases by measurements of their density and oxidation resistance 通过测量含碳气体的密度和抗氧化性来表征由含碳气体生长的碳纤维
European Journal of Solid State and Inorganic Chemistry Pub Date : 1998-11-01 DOI: 10.1016/S0992-4361(99)80012-5
A. Madroñero, C. Merino, A. Hendry
{"title":"Characterisation of carbon fibres grown from carbonaceous gases by measurements of their density and oxidation resistance","authors":"A. Madroñero,&nbsp;C. Merino,&nbsp;A. Hendry","doi":"10.1016/S0992-4361(99)80012-5","DOIUrl":"10.1016/S0992-4361(99)80012-5","url":null,"abstract":"<div><p>In the present work it has been demonstrated, by measurements of their density and air oxidation resistance, that different sorts of carbon fibres grown from a gaseous stage, vapour grown carbon fibres (VGCF), present a duplex structure. By means of these two experimental techniques, structural differences between both constituent phases of this kind of fibres have been determined. It has been proved that the catalytic phase or nucleus presents higher level of crystalline perfection than the pyrolytic or cortical phase. This is corroborated by the fact that thin VGCF show better mechanical properties than thick fibres.</p><p>In this way, it has been possible to determine the mean nucleus diameter of a batch of VGCF, and to established a mathematical expression, of the rule of mixtures type, for their density.</p></div>","PeriodicalId":100507,"journal":{"name":"European Journal of Solid State and Inorganic Chemistry","volume":"35 10","pages":"Pages 715-734"},"PeriodicalIF":0.0,"publicationDate":"1998-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/S0992-4361(99)80012-5","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79326260","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: 5
A study of the effects of process variables on the synthesis of PZT thin films by the pyrosol process 热溶胶法制备PZT薄膜的研究
European Journal of Solid State and Inorganic Chemistry Pub Date : 1998-11-01 DOI: 10.1016/S0992-4361(99)80002-2
V. Bornand, P. Papet, E. Philippot
{"title":"A study of the effects of process variables on the synthesis of PZT thin films by the pyrosol process","authors":"V. Bornand,&nbsp;P. Papet,&nbsp;E. Philippot","doi":"10.1016/S0992-4361(99)80002-2","DOIUrl":"10.1016/S0992-4361(99)80002-2","url":null,"abstract":"<div><p>We investigated the feasability of elaboration by the pyrosol process, on various substrates, of PZT (52/48) ferroelectric phases in thin film configuration. Changes in the deposition process, such as the introduction of multilayer techniques, as well as exand in-situ post-depositional annealing treatments, were applied in order to evaluate their impact on the composition, surface morphology and crystallinity. Under certain conditions, the perovskite phase was found to comprise up to 80% of the crystalline material in films elaborated with an in-situ annealing treatment. The primary competing phase in impure deposits was lead oxide.</p></div>","PeriodicalId":100507,"journal":{"name":"European Journal of Solid State and Inorganic Chemistry","volume":"35 10","pages":"Pages 607-618"},"PeriodicalIF":0.0,"publicationDate":"1998-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/S0992-4361(99)80002-2","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76340665","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: 3
Structure of (C3H5NH3)2H2P2O7·H2O (C3H5NH3)2H2P2O7·H2O的结构
European Journal of Solid State and Inorganic Chemistry Pub Date : 1998-11-01 DOI: 10.1016/S0992-4361(99)80010-1
E.H. Soumhi , I. Saadoune , A. Driss , T. Jouini
{"title":"Structure of (C3H5NH3)2H2P2O7·H2O","authors":"E.H. Soumhi ,&nbsp;I. Saadoune ,&nbsp;A. Driss ,&nbsp;T. Jouini","doi":"10.1016/S0992-4361(99)80010-1","DOIUrl":"10.1016/S0992-4361(99)80010-1","url":null,"abstract":"<div><p>The bis(cyclopropylammonium)dihydrogenodiphosphate monohydrate is a new diphosphate associated with the organic molecule C<sub>3</sub>H<sub>5</sub>NH<sub>2</sub>. We report the chemical preparation and the crystal structure of this organic cation diphosphate. (C<sub>3</sub>H<sub>5</sub>NH<sub>3</sub>)<sub>2</sub>H<sub>2</sub>P<sub>2</sub>O<sub>7</sub>.H<sub>2</sub>O is orthorhombic (S.G. : P2<sub>1</sub>2<sub>1</sub>2<sub>1</sub>), with Z = 4 and the following unit-cell parameters : a = 4.828(1) Å, b = 11.011(1) Å, c = 25.645(2) Å. The P<sub>2</sub>O<sub>7</sub> groups and H<sub>2</sub>O water molecules form a succession of bidimensional layers perpendicular to the c axis. The organic cations ensure the three-dimensional cohesion by NH-O hydrogen bonds.</p></div>","PeriodicalId":100507,"journal":{"name":"European Journal of Solid State and Inorganic Chemistry","volume":"35 10","pages":"Pages 699-706"},"PeriodicalIF":0.0,"publicationDate":"1998-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/S0992-4361(99)80010-1","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88982884","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: 1
The phase diagram of the system Na2SO4 - CaSO4 Na2SO4 - CaSO4体系的相图
European Journal of Solid State and Inorganic Chemistry Pub Date : 1998-11-01 DOI: 10.1016/S0992-4361(99)80001-0
D. Freyer , W. Voigt , K. Köhnke
{"title":"The phase diagram of the system Na2SO4 - CaSO4","authors":"D. Freyer ,&nbsp;W. Voigt ,&nbsp;K. Köhnke","doi":"10.1016/S0992-4361(99)80001-0","DOIUrl":"10.1016/S0992-4361(99)80001-0","url":null,"abstract":"<div><p>Quenching of Na<sub>2</sub>SO<sub>4</sub> - CaSO<sub>4</sub> melts down to room temperature results in different forms of metastable solid solutions dependent on the CaSO<sub>4</sub> content. The transformation of these solid solutions into stable phases were investigated after various times and temperatures by X-ray powder diffraction and thermal analyses. An equilibrium phase diagram is derived, which is in accordance with all experimental facts.</p></div>","PeriodicalId":100507,"journal":{"name":"European Journal of Solid State and Inorganic Chemistry","volume":"35 10","pages":"Pages 595-606"},"PeriodicalIF":0.0,"publicationDate":"1998-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/S0992-4361(99)80001-0","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89301571","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: 11
Rietveld refinement of two fluoro-hydroxy-zircons 两种氟羟基锆石的Rietveld提纯
European Journal of Solid State and Inorganic Chemistry Pub Date : 1998-11-01 DOI: 10.1016/S0992-4361(99)80013-7
R. Valéro, J.L. Paillaud, B. Durand , J.L. Guth, T. Chopin
{"title":"Rietveld refinement of two fluoro-hydroxy-zircons","authors":"R. Valéro,&nbsp;J.L. Paillaud,&nbsp;B. Durand ,&nbsp;J.L. Guth,&nbsp;T. Chopin","doi":"10.1016/S0992-4361(99)80013-7","DOIUrl":"10.1016/S0992-4361(99)80013-7","url":null,"abstract":"","PeriodicalId":100507,"journal":{"name":"European Journal of Solid State and Inorganic Chemistry","volume":"35 10","pages":"Pages 735-743"},"PeriodicalIF":0.0,"publicationDate":"1998-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/S0992-4361(99)80013-7","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72777639","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: 4
Carbon disulfide sonopolymer: A comparison with other carbon disulfide polymers 二硫化碳聚合物:与其他二硫化碳聚合物的比较
European Journal of Solid State and Inorganic Chemistry Pub Date : 1998-11-01 DOI: 10.1016/S0992-4361(99)80003-4
F. Cataldo , D. Heymann
{"title":"Carbon disulfide sonopolymer: A comparison with other carbon disulfide polymers","authors":"F. Cataldo ,&nbsp;D. Heymann","doi":"10.1016/S0992-4361(99)80003-4","DOIUrl":"10.1016/S0992-4361(99)80003-4","url":null,"abstract":"<div><p>Intense ultrasonic treatment caused CS<sub>2</sub> sonolysis with formation of several products like sulfur, carbon subsulfide C<sub>3</sub>S<sub>2</sub>, and a black insoluble sonopolymer. The sonolysis products was analyzed by electronic spectroscopy and liquid chromatography (HPLC). The black insoluble sonopolymer was studied in detail by FT-IR spectroscopy and was found to be chemically similar to the CS<sub>2</sub> photopolymer and to the piezopolymer. FT-IR shows that the sonopolymer prepared at room temperature is the ladder carbon subsulfide polymer (C<sub>3</sub>S<sub>2</sub>)<sub>x</sub>, having the linear polymer -[S-(C=S)-S-(C=S)-]<sub>x</sub>-, as minor component. When sonication is conducted at −78°C, FT-IR spectrum shows that the sonopolymer in addition to carbon subsulfide polymer (C<sub>3</sub>S<sub>2</sub>)<sub>x</sub> contains the carbon disulfide dimer (C<sub>2</sub>S<sub>4</sub>) previously detected in the piezopolymer.</p><p>A discussion of the mechanism of sonolysis of carbon disulfide shows that the “hot spot” theory involving high pressure and temperature generated by cavitational bubbles can explain the results at −78°C, but not at room temperature. To explain sonolysis at 0°C or higher temperature, electric breakdown inside cavitational bubbles should be considered.</p></div>","PeriodicalId":100507,"journal":{"name":"European Journal of Solid State and Inorganic Chemistry","volume":"35 10","pages":"Pages 619-628"},"PeriodicalIF":0.0,"publicationDate":"1998-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/S0992-4361(99)80003-4","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75029879","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: 8
Hydrothermal synthesis and crystal structure of SrAl2(PO4)2F2: A new three-dimensional framework with channels delimited by a helical anionic border 水热合成和SrAl2(PO4)2F2的晶体结构:一个由螺旋阴离子边界划分通道的新三维框架
European Journal of Solid State and Inorganic Chemistry Pub Date : 1998-11-01 DOI: 10.1016/S0992-4361(99)80005-8
J.-M. Le Meins, G. Courbion
{"title":"Hydrothermal synthesis and crystal structure of SrAl2(PO4)2F2: A new three-dimensional framework with channels delimited by a helical anionic border","authors":"J.-M. Le Meins,&nbsp;G. Courbion","doi":"10.1016/S0992-4361(99)80005-8","DOIUrl":"10.1016/S0992-4361(99)80005-8","url":null,"abstract":"<div><p>The new compound SrAl<sub>2</sub>(PO<sub>4</sub>)<sub>2</sub>F<sub>2</sub> has been synthesised by a hydrothermal method (700°C, 195 MPa, 24 h). The structure was determinated by X-ray diffraction on single crystal. SrAl<sub>2</sub>(PO<sub>4</sub>)<sub>2</sub>F<sub>2</sub> crystallises in the non-centrosymmetric space group P2<sub>1</sub>2<sub>1</sub>2<sub>1</sub> (N<sup>o</sup>19) with a = 12.026(1) Å, b = 12.199(1) Å, c = 4.666(1) Å, V = 684.6(5) Å<sup>3</sup> and Z = 4. Its structure is built up from corner-linkage between octahedral and tetrahedral units. The resulting tridimensional framework exhibits channels along [001] delimited by oxygen anions helically distributed. The Sr<sup>2+</sup> cations are inserted inside the channels.</p></div>","PeriodicalId":100507,"journal":{"name":"European Journal of Solid State and Inorganic Chemistry","volume":"35 10","pages":"Pages 639-653"},"PeriodicalIF":0.0,"publicationDate":"1998-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/S0992-4361(99)80005-8","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78720750","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: 6
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