A variety of lanthanocene complexes, e.g. chlorides, hydrocarbyls, amides, hydrides and divalent derivatives, were synthesized by using a series of designed cyclopentadienyl, indenyl and fluorenyl ligands with rin...A variety of lanthanocene complexes, e.g. chlorides, hydrocarbyls, amides, hydrides and divalent derivatives, were synthesized by using a series of designed cyclopentadienyl, indenyl and fluorenyl ligands with ring bridges or dornor functionalized sidearms. X Ray crystallographic analyses reveal the formation of intramolecular coordination bonds between central metals and heteroatoms (O, N) in sidearms or bridging chains. Some applications of these complexes are also discussed in this account.展开更多
Reactions of [Cp2Ln(μ-Cl)]2 (Cp= η5-C5H5, Ln = Nd, Yb, Dy, Gd, Er) with an equivalent of [(THF)3LiE2C2Bi0H10Li. (THF)]2 (E= S, Se) in THF afforded the dinuclear sandwich complexes of formula [CP2LnE2C2B10H10]2[LI(TH...Reactions of [Cp2Ln(μ-Cl)]2 (Cp= η5-C5H5, Ln = Nd, Yb, Dy, Gd, Er) with an equivalent of [(THF)3LiE2C2Bi0H10Li. (THF)]2 (E= S, Se) in THF afforded the dinuclear sandwich complexes of formula [CP2LnE2C2B10H10]2[LI(THF)4]2[E = S, Ln=Nd (1a), Yb (2a), Dy (3a), Gd (4a), Er (5a); E=Se, Ln=Nd (1b), Yb (2b), Dy (3b), Gd (4b), Er (5b)]. The molecular structures of complexes la, 2a and 2b were determined by the single crystal X-ray structure analyses. Two lanthanide atoms are connected by a pair chalcogen (η1, η2-E2C2B10H10) bridging ligands and the central Ln2E2 four membered ring is not planar.展开更多
文摘A variety of lanthanocene complexes, e.g. chlorides, hydrocarbyls, amides, hydrides and divalent derivatives, were synthesized by using a series of designed cyclopentadienyl, indenyl and fluorenyl ligands with ring bridges or dornor functionalized sidearms. X Ray crystallographic analyses reveal the formation of intramolecular coordination bonds between central metals and heteroatoms (O, N) in sidearms or bridging chains. Some applications of these complexes are also discussed in this account.
基金theNationalNaturalScienceFoundationofChina (No .2 992 5 10 1)andtheMajorStateBasicResearchDevelop mentProgramofChina (No .G19990 6 480 0 )
文摘Reactions of [Cp2Ln(μ-Cl)]2 (Cp= η5-C5H5, Ln = Nd, Yb, Dy, Gd, Er) with an equivalent of [(THF)3LiE2C2Bi0H10Li. (THF)]2 (E= S, Se) in THF afforded the dinuclear sandwich complexes of formula [CP2LnE2C2B10H10]2[LI(THF)4]2[E = S, Ln=Nd (1a), Yb (2a), Dy (3a), Gd (4a), Er (5a); E=Se, Ln=Nd (1b), Yb (2b), Dy (3b), Gd (4b), Er (5b)]. The molecular structures of complexes la, 2a and 2b were determined by the single crystal X-ray structure analyses. Two lanthanide atoms are connected by a pair chalcogen (η1, η2-E2C2B10H10) bridging ligands and the central Ln2E2 four membered ring is not planar.
