The metalation of HP(SiMe₃)₂ with Y[CH(SiMe₃)₂]₃ gives the homoleptic {Y[P(SiMe₃)₂]₃}₂ (1) which crystallizes from toluene in the monoclinic space group P2₁/c. The yttrium atoms are in a distorted tetrahedral environment with Y-P bond lengths of 267.7 and 284.8 pm to the terminal and bridging substituents, respectively. The metathesis reaction of [1, 3-(Me₃Si)₂C₅H₃]₂YCl with KPSitBu₃ yields (tetrahydrofuran-O)-1, 1', 3, 3'-tetrakis(trimethylsilyl)yttrocene-tri(tert-butyl)silylphosphanide (2). The molecular structure of 2 in solution was deduced by NMR spectroscopy and X-ray crystallography. The coupling constants ¹J(Y, P) and ¹J(P, H) show values of 144.0 Hz and 201.0 Hz, respectively.

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Volume628, Issue2

February 2002

Pages 330-332

Synthese und Strukturen von Yttrium-tris[bis(trimethylsilyl)phosphanid] und 1, 1', 3, 3'-Tetrakis(trimethylsilyl)yttrocen-tri(tert-butyl)silylphosphanid

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Synthese und Strukturen von Yttrium-tris[bis(trimethylsilyl)phosphanid] und 1, 1', 3, 3'-Tetrakis(trimethylsilyl)yttrocen-tri(tert-butyl)silylphosphanid

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