Organometallic compounds of the lanthanides. 59. [1,1'-(3-Oxapentamethylene)dicyclopentadienyl]yttrium and -lutetium 3,5-dimethylpyrazolates. X-ray crystal structure of [O(CH2CH2C5H4)2Ln(.mu.-N2C3HMe2)(.mu.-OH)Ln(C5H4CH2CH2)2O] (Ln = yttrium, lutetium)

Abstract

Organometallic Compounds of the Lanthanides. 59.1 (1,1'-(3-Oxapentamethylene)dicyclopentadienyl)yttrium and -lutetium 3,5-Dimethylpyrazolates. X-ray Crystal Structure of [0(CH2CH2C5H4)2Ln(y-N2C3HMe2)(M-0H)Ln(C5H4CH2CH2)20] (Ln = Y, Lu)

Structural variation in cerium aryloxide complexes templated by hemilabile K+–amine interactions

“…In the IR spectrum, a sharp -OH stretch was observed at 3712 cm À1 , which was consistent with previously reported RE-OH complexes, Nd(OH) at 3577 cm À1 and Y(OH) at 3350 cm À1 . 17,18 Through cyclic voltammetry measurements, the Ce III/IV couple was determined to be À0.82 V versus Fc/Fc + .…”

Novel insertion of dimethylsilanone into an Yb–N bond and molecular structure of the insertion product [{Yb(η2-C3N2HMe2-3,5)(µ-η1:η2-OSiMe2C3N2HMe2-3,5)(η-C5H4Me)}2]

“…Another remarkable feature of the structure is that the heterobinuclear centres (Yb and Si) are bridged in unusual ways by two different ligands. 8 The coordination environment about the silicon atom is approximately tetrahedral. The Si-N distance of 1.792(6) A is slightly longer than thFse found in [Sm(C5Me5){ N(SiMe3)2}], 1.712(7)-1.713(7) A.…”

Uranium-sulfilimine chemistry. Hydrolysis of Cp*2UCl2 with HNSPh2·H2O and the crystal structure of Cp*2UCl(OH)(HNSPh2), a metallocene terminal hydroxy complex of tetravalent uranium

“…A few actinide metallocene hydroxides have been reported [1,2] and there are a few lanthanide analogues [3][4][5][6][7][8][9][10][11]. For the actinindes several closely related, but not formally organometallic, molecular complexes have been structurally characterized [12,13].…”