The Synthesis and Structure of Silica-Sodalite from Nonaqueous Systems

A silica polymorph, silica-sodalite was synthesized from a nonaqueous system NaOH-SiO2-C2H4(OH)2 and its chemical compositionwas determined to be Si12 O24,2C2H4(OH)2 by the X-fluorescence,thermogravimetric and organic elemental analyses. The single crystal X-ray diffraction structure determination of the silica-sodaliteshowed that the silica-sodalite is cubic, spacing group I23 and unitcell parameter a= 8.8354A. The IF and solid state high resolution Siand 13 C NMR spectra of the silica-sodalite were measured and discussed .     

Crystal and Molecular Structure of Methylene－bis［benzobicyclo（diaza－diphenyl）stannoxide］，［o－O■n（C_6H_5）_2］_2CH_2·1／2C_6H_6

ＣｒｙｓｔａｌａｎｄＭｏｌｅｃｕｌａｒＳｔｒｕｃｔｕｒｅｏｆＭｅｔｈｙｌｅｎｅ－ｂｉｓ［ｂｅｎｚｏｂｉｃｙｃｌｏ（ｄｉａｚａ－ｄｉｐｈｅｎｙｌ）ｓｔａｎｎｏｘｉｄｅ］，［ｏ－Ｏ■ｎ（Ｃ_６Ｈ_５）_２］_２ＣＨ_２·１／２Ｃ_６Ｈ_６ＷａｎｇＪｉ－Ｔａｏ；?..     

Synthesis and Structure of 〔Cu(μ-C_6H_5COO)_2(C_4H_8O)〕_2

1mTRODUCT1ONBinuclearcoppercomplexesareimportantnotonlyincoordinationchemistryandmagnetostructuralstudiesbutalsoinpracticalapplication.tliInanattempttoseekthedisPersionandemulationreagentsofCWM(themixtureofcoalandwater),thetitlecomP0undwassynthesizedbyanoxidativepreparationmethodt2i,whosesynthesisandstructurearedifferentfromthosedescribedbyWangetoft3i.Here,0nlythesynthesisandstructureofthetitlecomP0undarereportedandthestudiesofitsappli-cationareinprogress.2EXPERIMENTAL2.1Preparati0n…     

An Explanation on the Electron Ionization Mass Spectra of Crown Ethers by MNDO Computational Method

ＡｎＥｘｐｌａｎａｔｉｏｎｏｎｔｈｅＥｌｅｃｔｒｏｎＩｏｎｉｚａｔｉｏｎＭａｓｓＳｐｅｃｔｒａｏｆＣｒｏｗｎＥｔｈｅｒｓｂｙＭＮＤＯＣｏｍｐｕｔａｔｉｏｎａｌＭｅｔｈｏｄＹＵＡＮＨｕ－ｓｈａｎ，ＴＡＮＧＭｉｎｇ－ｓｈｅｎｇａｎｄＷＵＹａｎｇ－ｊｉｅ（...     

Synthesis and Magnetic Properties of Binuclear Mn（Ⅱ）Complexes with Alkoxide Bridge

ＳｙｎｔｈｅｓｉｓａｎｄＭａｇｎｅｔｉｃＰｒｏｐｅｒｔｉｅｓｏｆＢｉｎｕｃｌｅａｒＭｎ（Ⅱ）ＣｏｍｐｌｅｘｅｓｗｉｔｈＡｌｋｏｘｉｄｅＢｒｉｄｇｅＹａｎＳｈｉ－ｐｉｎｇ；ＦａｎＢｏ；ＬｉａｏＤａｉ－ｚｈｅｎｇ；ＪｉａｎｇＺｏｎｇ－ｈｕｉａｎｄＷａｎｇ...     

The Wave Function with Symplectic Symmetry and Its Application

The antisymmetrized geminal power (AGP) and sequential product of geminals(SPG) functions, the basis functions with symplectic symmetry, are linearly combined to calculate the ground state of the LiH molecule. The calculation results show that the AGP or SPG function gives the same ground state results as the linear combination.     

Luminescence of Eu~(2 ) in Strontium Aluminum Oxide System with Long Decay Property

Luminescentmaterialshavinglongdecayperi0dhaveat-IIactedmuchinterestduetotheirpotentialwidespreadaPplicati0ns.Recently,alongdecayluminescentp0wderhavingthecomPositionofSrAl2O4activatedwithEu' wasreportedandregardedasthebestcandidateforpracticalaPPlicationbecauseofitsuniqueadVantages0veritsprecursors.l'2Inthispaper,wereportthesynthesisofthelongdecayluminescentpowderandtheinnuence0fthemolarratioofAlt0sr0ntheethessioncolor.Toproducethelundnescentp0wder,amixtureofSrCO3,Al2O3,Eu2O3andsomesol…     

Crystal Structure Analysis of Tetras[L-tris(ethylenediamine) cobalt(Ⅲ)] tris[hexacyanoruthenate(Ⅱ)]

1 INTRODUCTION The tris(ethylenediamine) cobalt (Ⅲ) complex in which there are L and D configurations is one of the very interest cations due to the chirality among research complexes and the characterization of reaction on the ion-pair charge-transfer transitions. It has been mentioned in a lot of examples on the chirality and the structure, such as [L-Co(en)3]- [?Co(edta)]2Cl?0H2O[1], [(+)DCo(en)3]Cl3稨2O[2], [(+)-Co(en)3?-)-Cr(en)3]Cl?.1H2O[3], [()-Co(en)3] (SCN)3[4], [(+)D…     

Synthesis,Spectroscopic Properties and Crystal Structural Characterization of a Triphenyltin(IV) Complex with 5-Bromonicotinic Acid

1 INTRODUCTION Organotin esters of carboxylic acids are widely used as biocides, fungicides and homogeneous ca- talysts in industry[1～3]. Recently, pharmaceutical pro- perties of organotin esters of carboxylic acids have been investigated for their antitumour activity[4, 5]. Studies on organotin compounds containing car- boxylate ligands with additional donor atoms (e.g. N, O or S) that are available for coordination to the tin atom have revealed that new structural types may lead to di…     

Synthesis and Crystal Structure of Binuclear Copper （Ⅱ） Complex Containing （Dimethylaminomethyl）ferrocene

1 INTRODUCTION Transition metal complexes with ferrocene are of considerable interest in the past fifty years because of their novel structures and special properties[1, 2]. The chemistry of ferrocene and its derivatives has become richer and richer in the last decade. Many complexes containing ferrocenyl have been synthesized and characterized[3～5]. Recently we have reported the synthesis and crystal structure of dibromo[1,1?bis(diphenylphosphino)- ferrocene]cadmium (Ⅱ)[6]. Herein we…