Tris(triethylsilyl)antimony and related compounds

Vyazankin, N. S.; Razuvaev, G. A.; Kruglaya, O. A.; Semchikova, G.S.

doi:10.1016/s0022-328x(00)80201-6

Cited by 63 publications

(3 citation statements)

References 6 publications

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“…In addition, the participation of the group 15 p elements in the formation of the silyl radicals is established. For example, homolysis of tris(triethylsilyl)antimony led to antimony and free triethylsilyl radicals 28. In case of bismuth, the formation of its (R′) 2 Bi · radicals was observed in the gas phase.…”

Section: Resultsmentioning

confidence: 99%

Reduction vs. Metathesis in the Reactions of Bismuth Tribromide with a Bulky Lithium Silanide – An Experimental and Theoretical Study

2010

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Keywords: Bismuth / Silicon / Lithium / Crystal structure analysis / Density functional calculations On reaction of BiBr 3 with Li(thf) 3 SiPh 2 tBu (1) in the corresponding ratios redox/metathesis reactions were observed, yielding dibismuthane (tBuPh 2 Si) 4 Bi 2 (2) and disilylbismuth halide (tBuPh 2 Si) 2 BiBr (3). The latter is a reaction intermediate in the formation of the dark-red 2. The X-ray crystal structures of 1-3 were determined by low-temperature X-ray diffraction. The Si 2 Bi-BiSi 2 core of 2 is in the semi-eclipsed conformation. No oligomerization of "nonthermochromic" 2 was observed. Compound 3 is a mixed substituted monomer with a pyramidal environment around the bismuth center. On the basis of quantum chemical calculations, the formation of tertiary bismuthane (tBuPh 2 Si) 3 Bi is not expected for steric reasons. According to DFT-optimized geometries of the simplified model systems n[(H 3 Si) 2 Bi] 2 (n = 1-3), the closed-shell attraction between intermolecular Bi centers in the chain provides a moderate elongation of the intramolecular Bi-Bi

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Section: Resultsmentioning

confidence: 99%

Reduction vs. Metathesis in the Reactions of Bismuth Tribromide with a Bulky Lithium Silanide – An Experimental and Theoretical Study

2010

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“…system [8]. The synthesis is carried out in a small excess of organic ligands, which are subsequently frozen.…”

Section: Methodsmentioning

confidence: 99%

“…This effect must lead to an increase of 35 Cl NQR frequency according to equation (8). Therefore, one can think that the change of the 35 Cl NQR frequency in the TiCl 4 L 2 series is firstly due to differences of the order of the TiCl bond.…”

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Ligand effect on chlorine electron density distribution in titanium tetrachloride complexes

et al. 2000

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C1 Kα line shifts and 35Cl NQR frequencies have been measured for series of titanium tetrachloride complexes. Nonempirical calculations of corresponding free ligands have been carried out on the MP2/6‐31G* level. Dependencies of the experimental data obtained on experimental and calculated parameters of ligand donor ability have been analyzed. It is shown that the electron density on acceptor chlorine atoms and the electric field gradient on their nuclei are determined at first by the polarizing effect of the ligand. © 2000 John Wiley & Sons, Inc. Heteroatom Chem 11:177–181, 2000

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A Tripodal Triaminostannate as a Metal Nucleophile: Synthesis of Transition Metal−Tin Heterodimetallic Complexes

Lutz

Findeis

Haukka

et al. 2001

Eur. J. Inorg. Chem.

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The coordination capability of the previously reported triamidostannate [MeSi{SiMe2N(4‐CH3C6H4)}3SnLi(OEt2)] (1) as a precursor for transition metal−tin heterodimetallic complexes is presented. Whereas reaction with CH3I, Me3SiCl, or Me3SnCl yielded the derivatives [MeSi{SiMe2N(4‐CH3C6H4)}3Sn−R] (R = Me, 2; Me3Si, 3; Me3Sn, 4), demonstrating the nucleophilic properties of the stannate(II), its complexation to transition metal centres was achieved by halide substitution with [CuCl(PPh3)]4, [CpM(CO)2X] (M = Fe, X = Cl; M = Ru, X = Br), [CpM(CO)3Cl] (M = Mo, W) and trans(Cl)‐[RuCl2(bpy)(CO)2] to give [MeSi{SiMe2N(4‐CH3C6H4)}3Sn−Cu(PPh3)] (5), [MeSi{SiMe2N(4‐CH3C6H4)}3Sn− M(CO)2Cp (M = Fe: 6; Ru: 7)], [MeSi{SiMe2N(4‐CH3C6H4)}3Sn−M(CO)2Cp] (M = Mo: 8; W: 9) and [(MeSi{SiMe2N(4‐CH3C6H4)}3Sn)2Ru(bpy)(CO)2] (10), of which 6, 9 and 10 were characterized by X‐ray diffraction.

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Tris(triethylsilyl)antimony and related compounds

Cited by 63 publications

References 6 publications

Reduction vs. Metathesis in the Reactions of Bismuth Tribromide with a Bulky Lithium Silanide – An Experimental and Theoretical Study

Reduction vs. Metathesis in the Reactions of Bismuth Tribromide with a Bulky Lithium Silanide – An Experimental and Theoretical Study

Ligand effect on chlorine electron density distribution in titanium tetrachloride complexes

A Tripodal Triaminostannate as a Metal Nucleophile: Synthesis of Transition Metal−Tin Heterodimetallic Complexes

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