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《单取代环戊二烯基羰基钼化合物的合成、晶体结构及热稳定性.pdf》由会员上传分享,免费在线阅读,更多相关内容在行业资料-天天文库。
1、第29卷第10期无机化学学报Vo1.29No.102013年lO月CHINESEJ0URNALOFINORGANICCHEMISTRY2225—2230单取代环戊二烯基羰基钼化合物的合成、晶体结构及热稳定性王娜1马志宏2韩占刚1林进,郑学忠,1(河北师范大学化学与材料科学学院,石家庄050024)(河北医科大学基础医学院,石家庄050017)摘要:单取代环戊二烯(CHsR)(R-Butyl(1),Benzyl(2),n—Propyl(3),Allyl(4]●分别和Mo(CO)反应,生成4个新的环戊二烯基钼双核羰基配合物(c5H4R)2M
2、o2(cO)6(R=n—Butyl(5),Benzyl(6),n—Propyl(7),Allyl(8))。配合物5~8通过元素分析,IR,HNMR,热重进行了表征,并用X—ray单晶衍射法测定了配合物5和6的晶体结构。晶体结构显示配合物5属于单斜晶系,P2。/c空间群,配合物6属于三斜晶系,空间群;热重分析表明配合物5和6分别处于107和162℃以下温度时很稳定。关键词:羰基钼;单取代环戊二烯基;晶体结构;X.射线衍射中图分类号:0614.612文献标识码:A文章编号:1001—4861(2013)10—2225.06DoI:10.39
3、69~.issn.1001—4861.2013.00.329Synthesis,CrystalStructuresandThermalStabilityofMonsubstitutedCyclopentadienylDimolybdenumCarbonylComplexesWANGNaMAZhi-Hong2HANZhan—GangLINJinZHENGXue—Zhong,(。CollegeofChemistry&MaterialScience,HebeiNormalUniversity,Shijiazhuang050024,China)
4、(CollegeofBasicMedicine,HebeiMedicalUniversity,Sh~iazhuang050017,China)Abstract:Monsubstitutedcycl0pentadienes(CsHsR)(R=n—Butyl(1),Benzyl(2),n-Propyl(3),Allyl(4))reacted’vithMo(CO)6togivefournewdinuclearcyclopentadienylmolybdenumcarbonylcomplexes(C5H4R)2Mo2(CO)6(R=/'t-Bu
5、tyl(5),Benzyl(6),n-Propyl(7),Allyl(8)),respectively.Thecomplexes5~8werecharacterizedbyelementalanalysis.IR.HNMRspectrum,andTG.Thecrysta1structuresof5and6weredeterminedbyX.raysinglecrystaldiffraction.Thestructuresshowthatcomplex5crystallizesinmonoclinicsystemwithspacegrou
6、pp21fcandcomplex6istricliniecrystalsystemwithspacegroupP1.TheTGanalysisshowsthatthecomplexes5and6arestablebelow107and162oC,respectively.CCDC:883603,5:881472,6.Keywords:molybdenumcarbonyl;monsubstitutedcyclopentadienyl;crystalstructure;X—raydifraction0Introductiondifferin
7、greactivityandstabilityofthesubstitutedcyclopentadienylmetalcomplexes【~.EspeciallyforCyclopentadienylmetalcomplexeshavebeenmetallocenepolymerizationcatalysts,thestericandextensivelyinvestigatedsinceferrocenehasbeenelectroniceffectsofcyclopentadienylringsubstituentsdiscov
8、ered.Replacementofthehydrogenatomsbyhavegreatinfluenceoncatalyticactivity.Ourteamothersubstituentsalter
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