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dc.contributor.authorLin, Yiji
dc.contributor.authorWan, Shigang
dc.contributor.authorZou, Fang
dc.contributor.authorWang, Yuekui( Shanxi Univ, Inst Mol Sci, Key Lab Chem Biol & Mol Engn)
dc.contributor.authorZhang, Hui
dc.contributor.author章慧
dc.date.accessioned2012-03-21T01:17:54Z
dc.date.available2012-03-21T01:17:54Z
dc.date.issued2011-08-26
dc.identifier.citationNEW JOURNAL OF CHEMISTRY,2011,35(11):2584-2590zh_CN
dc.identifier.issn1144-0546
dc.identifier.urihttp://dx.doi.org/doi:10.1039/c1nj20430k
dc.identifier.uriWOS:000296204900026
dc.identifier.urihttps://dspace.xmu.edu.cn/handle/2288/11820
dc.description.abstractThe present work examines the relationship between the crystal structures and chiroptical properties of four chiral Yb(III) complexes with camphor-derivative beta-diketone ligands by means of solid-state circular dichroism (CD) spectroscopy. For the seven-coordinate complexes, [Yb(H(2)O)(d-hfc)(3)] (I) and [Yb(H(2)O)(l-hfc)(3)] (II) (d/l-hfc(-) = 3-heptafluorobutyryl-(+)/(-)-camphorate), the Lambda- and Delta-diastereomers coexist in their crystals and no apparent bisignate couplets are observed in their solid-state CD spectra. A theoretical study indicates that the ground-state energy difference between the two diastereomers I and II is only 0.913 kcal mol(-1), which explains why they could coexist in a crystal environment with the ratio of 1:1. While, eight-coordinate complexes Delta-[Yb(TPPO)(2)(d-hfc)(3)]center dot CHCl(3)center dot 3C(6)H(12) (III) and Lambda-[Yb(TPPO)(2)(l-hfc)(3)]center dot CHCl3 center dot 3C(6)H(12) (IV) (TPPO = triphenylphosphine oxide) are enantiopure in the solid-state, and typically negative and positive exciton splitting patterns around 330 nm are observed in their solid-state CD spectra. The solid-state CD spectra of these four complexes are in accordance with their X-ray single-crystal analyses. Besides, their solution CD spectra show that no particular isomer predominates in solution.zh_CN
dc.description.sponsorshipNSFC[20973136, 20773098, 20673069]; NSF of Shanxi province[2007011021]zh_CN
dc.language.isoenzh_CN
dc.publisherROYAL SOC CHEMISTRYzh_CN
dc.titleStructure-chiroptical property relationship of kinetically labile camphor-derivative beta-diketone Yb(III) complexes: do the adducts coexist as diastereomers or not?zh_CN
dc.typeArticlezh_CN


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