2012
DOI: 10.1039/c2dt12369j
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Synthesis and characterisation of selected group 14 derivatives of the 2,5-(CF3)2C6H3 (Ar) ligand

Abstract: Selected group 14 tetrahalides EX(4) (E = Si, Ge or Sn; X = Cl or Br) have been reacted in various molar ratios with ArLi, where Ar = 2,5-(CF(3))(2)C(6)H(3). The compounds Ar(2)SiCl(2)1, Ar(3)SiF 3, Ar(2)Si(OH)(2)4, Ar(2)GeCl(2)7, Ar(2)Ge(Br)Ge(Br)Ar(2)8, Ar(3)SnCl 10, Ar(4)Sn 11 and Ar(3)SnBr 12 have been isolated, and characterised by single-crystal X-ray diffraction, elemental analysis and (19)F solution-state NMR spectroscopy.

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Cited by 10 publications
(6 citation statements)
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“…The reaction between a Grignard reagent and GeCl 4 (molar ratio 3:1) resulted in the formation of a mixture of the corresponding chlorides and bromides (i.e., 1a/1b and 2a/2b ) (Scheme ) as well as other byproducts (evidently, monoaryl-, diaryl-, and tetraarylgermanes) as the minor constituents. Such a complex mixture of compounds is typical when it comes to the preparation of organogermanes and unavoidable in many cases. To the best of our knowledge, there are only a few reported cases in which a halogenated triarylgermane was obtained as a sole product and in one step from the reaction between GeCl 4 and a Grignard or an organolithium reagent (Mes 3 GeCl, ( p -Tol) 3 GeCl, (C 6 F 5 ) 3 GeCl, and ( o -Ph 2 PC 6 H 4 ) 3 GeCl).…”
Section: Resultsmentioning
confidence: 99%
“…The reaction between a Grignard reagent and GeCl 4 (molar ratio 3:1) resulted in the formation of a mixture of the corresponding chlorides and bromides (i.e., 1a/1b and 2a/2b ) (Scheme ) as well as other byproducts (evidently, monoaryl-, diaryl-, and tetraarylgermanes) as the minor constituents. Such a complex mixture of compounds is typical when it comes to the preparation of organogermanes and unavoidable in many cases. To the best of our knowledge, there are only a few reported cases in which a halogenated triarylgermane was obtained as a sole product and in one step from the reaction between GeCl 4 and a Grignard or an organolithium reagent (Mes 3 GeCl, ( p -Tol) 3 GeCl, (C 6 F 5 ) 3 GeCl, and ( o -Ph 2 PC 6 H 4 ) 3 GeCl).…”
Section: Resultsmentioning
confidence: 99%
“…For instance, crystals of bis(2,5-bis(trifluoromethyl) phenyl)(dichloro)germane (refcode ZAVCUW) have two symmetrically nonequivalent molecules in the unit cell [110]. Both of these molecules show two fairly short and linear TBs oriented along the extensions of the Cl-Ge bonds (Nc values span the range 0.78-0.79; the C-Ge···F angles are between 176.15°and 174.93°) (Fig.…”
Section: Halogen Atoms As Tetrel Bond Acceptorsmentioning
confidence: 99%
“…The ortholithiation of 1,4-difluorobenzene (eq 24) underscored the ease with which rate-limiting steps can shift . Isotope effects played a prominent role in this process (see sections and ).…”
Section: Case Studiesmentioning
confidence: 99%