[U(CO3)3(H2O)2]·2H2O配合物的合成及晶体结构.pdf

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1、第26卷第2期无机化学学报V01．26No．22010年2月CHINESEJOURNALOFIN0RGANICCHEMISTRY351—354[U(CO3)3(H20)2]·2H2O配合物的合成及晶体结构王娟，I吕鑫李子颖2张玉燕2程时远1f湖北大学化学化工学院，武汉43006212X_z-&部北京地质研究院，北京100029)关键词：铀；晶体结构：碳酸根中图分类号：0614．62文献标识码：A文章编号：1001-461(2010)020351．04SynthesisandCrystalStructureofaUranylc0ntainingComplex【U(CO3)3(H2o)2

2、]·2H20WANGJuan'L0XinLIZi．YingZHANGYu—YanCHENGShi．Yuan(SchoolofChemistryandChemicalEngineering,HubeiUniversity,Wuhan430062)(2BeijingResearchInsitituteofUraniumGeology,Bering100029)Abstract：Auranylc0ntainingcompound【u(co3)3(H20)2]·2H20hasbeensynthesizedunderhydrothermalconditionandcharacterizedby

3、X—raysingle—crystalanalysis．CrystalstructuralanalysisindicatesthatthiscompoundconsistsofthreeCO3molecules，oneU．Theresultsrevealthatthetitlecompoundpresentsa3DframeworkbuiltupbyO～H⋯Oweekhydrogenbondsinteractions．Thecentraluraniumatomiseight—coordinatedthroughthreeCO3一moleculesandtwoH20．Thecompou

4、ndshowsacoplanarhexagonalnetworkstructure，eachhexagoncontainingahexagonalholewithawatermoleculet．CCDC：737313．Keywords：uranium；crystalstructure；carbonateUranium(、7DisacommonactinidefoundinnaturallexeswithC032一toformverysolublespecies，whichmediaandinradioactivewaste．Moreover，itisoftensignificantl

5、yinhibitsadsorptionofUontosurfacesoftakenasamodelforotheractinidesfoundinradioa．solidssuchasamorphousFe—Mnoxides，claysandctivewaste．ThegeochemistryofuraniuminoceansiSorganicparticles．Thisisconsistentwiththeabsenceofmainlycharacterizedby(1)reduction．oxidationreac．anyverticalUconcentration，[U】，va

6、riationsMongthetionschangingUbetweentwodominantoxidationwatercolumn同．Insedimentporewaterswherecontentsstates，UandU；(2)complexationofU“withO2toof02andCO3一aredecreasedduetoorganiccarbonformuranylionandfurtherwithC032-；and(3)degradation．UtendstobereducedtoU“byHSand／oradsorptionofdifferentUspecieso

7、ntovariousnaturalmicrobialactivitiesandUismorereadilyremovedbysolidsandsolubilityofUassociatedsolidsE．IntodaySstrongeradsorptionatalowerdegreeofcomplexationoceanswhereseawaterisoxicalmosteverywhere，UwithC032-l7。砌．predominantlyexis