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Synthesis and structural characterization of organolanthanide complexes with 1,2-dicarba-closo-dodecaborane-1,2-dichalcogenolate ligands
Yu, XY; Jin, GX; Hu, NH; Weng, LH
2002-12-09
Source PublicationORGANOMETALLICS
ISSN0276-7333
Volume21Issue:25Pages:5540-5548
AbstractReactions of anhydrous LnCl(3) (Ln = Nd, Gd, Dy, Er, Yb) with 2 equiv of LiCp' in THF afford the lanthanocene complexes Of CP'(2)Ln(mu-Cl)(2)Li(THF)(2) (CP' = eta(5)-t-BuC5H4, Ln = Nd (1), Gd (2), Dy (3), Er (4), Yb (5); Cp'= 1,3-eta(5)-t-Bu2C5H3, Ln = Nd (6), Gd (7), Dy (8), Er (9), Yb (10)). The molecular structures of 7 and 8 were characterized by X-ray crystallographic analysis. In these complexes, two Cp' ring centroids and two it-bridging chloride atoms around the lanthanide atoms form a distorted tetrahedron. The insertion of elemental chalcogen E (E = S, Se) into Li-C bonds of dilithium o-carborane in THF solution afforded dimers of dilithium. dichalcogenolate carboranes, [(THF)(3)LiE2C2B10H10Li(THF)](2) (E = S (12a), Se (12b)), which were confirmed by a crystal structure analysis. Reactions Of Cp'(2)Ln(mu-Cl)(2)Li(THF)(2) (1-10) with 12a or 12b gave dinuclear complexes of the formula [Li(THF)(4)](2)[Cp'(2)LnE(2)C(2)B(10)H(10)](2) (Cp'= eta(5)-t-BuC5H4, E = S, Ln = Nd (13a), Gd (14a), Dy (15a), Er (16a), Yb (17a); E = Se, Ln = Nd (13b), Gd (14b), Dy (15b), Er (16b), Yb (17b); Cp'= 1,3-eta(5)-t-Bu2C5H3 E = S, Ln = Nd (18a), Gd (19a), Dy (20a), Er (21a), Yb (22a); E = Se, Ln = Nd (18b), Gd (19b), Dy (20b), Er (21b), Yb (22b)). According to the X-ray structure analyses, the dianions of 13a and 13b contain two o-carborane dichalcogenolate bridges, and each CP'2Ln fragment is attached to one terminal and two bridging chalcogen ligands. The central Ln(2)E(2) four-membered ring is not planar, and the direct metal-metal interaction is absent.
DOI10.1021/om020647n
Indexed BySCI
Language英语
WOS IDWOS:000179717300012
PublisherAMER CHEMICAL SOC
Citation statistics
Cited Times:70[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.iccas.ac.cn/handle/121111/78938
Collection中国科学院化学研究所
Corresponding AuthorJin, GX
Affiliation1.Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Polymer Phys & Chem, Changchun 130022, Peoples R China
2.Fudan Univ, Dept Chem, Shanghai 200433, Peoples R China
Recommended Citation
GB/T 7714
Yu, XY,Jin, GX,Hu, NH,et al. Synthesis and structural characterization of organolanthanide complexes with 1,2-dicarba-closo-dodecaborane-1,2-dichalcogenolate ligands[J]. ORGANOMETALLICS,2002,21(25):5540-5548.
APA Yu, XY,Jin, GX,Hu, NH,&Weng, LH.(2002).Synthesis and structural characterization of organolanthanide complexes with 1,2-dicarba-closo-dodecaborane-1,2-dichalcogenolate ligands.ORGANOMETALLICS,21(25),5540-5548.
MLA Yu, XY,et al."Synthesis and structural characterization of organolanthanide complexes with 1,2-dicarba-closo-dodecaborane-1,2-dichalcogenolate ligands".ORGANOMETALLICS 21.25(2002):5540-5548.
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