Metallocenes yog ib pawg ntawm cov chav kawm dav dav ntawm cov tshuaj hu ua sandwich compounds. Hauv cov qauv qhia ntawm txoj cai, ob lub pentagons yog cyclopentadienyl anions nrog lub voj voog hauv lawv qhia tias lawv muaj aromatically stabilized.
metallocene polymers yog dab tsi?
Metallocenes yog zoo heev hlau catalystLawv muaj cov feeb ntawm cov hlau ions zoo nkauj sandwiched ntawm ob cyclopentadienyl anions, uas muaj tsib atoms ib lub nplhaib. … Ntau yam derivatives ntawm thaum ntxov metallocenes yog active catalysts rau olefin polymerization.
Dab tsi yog metallocenes muab piv txwv?
Ib tus paub zoo tshaj plaws metallocenes yog ferrocene (η5-Cp)2Fe , uas yog hlau (Fe2+)-raws li cov xuab zeb-wich complex. Lub chaw hlau yog sandwiched ntawm ob cyclopentadienyl ligands, uas yog coparallel.
YYuav ua li cas hom tshuaj ferrocene?
Ferrocene yog an organometallic compound ntawm cov chav kawm dav hlau metallocene nrog cov mis mos molecular Fe(η5-C 5 H5)2 Nyob rau hauv no molecule, hlau yog sandwiched ntawm ob lub voj voog cyclopentadienyl nyob rau hauv staggered conformation, raws li qhia nyob rau hauv daim duab 6.
Puas yog ferrocene ib qho tshuaj tsw qab?
Kev piav qhia: Ferrocene yog metallocene…an 18 electron organometallic compound…. Ob qho tib si cyclpentadienyl ligands yog aromatic los ntawm tus Huckel criterion…