o-ANISYLSTANNYL DERIVATIVES (o-MeOC6H4)nSnX4-n . CRYSTAL STRUCTURES OF (o-An)nSnX4-n (n = 2, X = Ph or I; n = 1, X = Br)

Ferguson, George; Low, John N.; Ross, J. N.; Storey, Emily J.; Wardell, Jámes L.

doi:10.1515/mgmc.1999.22.7.453

Cited by 2 publications

(1 citation statement)

References 18 publications

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“…The intramolecular Sn⋅⋅⋅O distances are at the borderline or shorter than the sum of the van der Waals radii of tin (2.20 Å)63 and oxygen (1.50 Å) 63. Intramolecular Sn⋅⋅⋅⋅O contacts of 2.884(3)–3.067(2) Å and 2.38(4) Å have been reported for compounds in which the tin and oxygen atoms are part of four‐64, 65 and five‐membered66, 67 rings, respectively. The Sn(2)–Cl(2′) distance amounts to 4.232(1) Å which is greater than the sum of the van der Waals radii of tin and chlorine (1.70 Å) 63.…”

Section: Resultsmentioning

confidence: 99%

[cyclo-CH2{Sn(Cl2)CH2Si(Me2)}2O]: Synthesis and Complexation Behaviour of a Novel, Cyclic, Bidentate Lewis Acid and Its Conversion into a Tin-Containing Fluorosilane with Intermolecular Si−F⋅⋅⋅Sn Bridges

Schulte¹,

Schürmann²,

Jurkschat³

2001

Chem. Eur. J.

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Acid-catalysed hydrolysis of [CH2[(Sn(Ph2)CH2Si(OiPr)Me2]2] followed by subsequent reaction with mercuric chloride in acetone afforded the novel silicon- and tin-containing eight-membered ring [cyclo-CH2[Sn(Cl2)CH2Si(Me2)]2O] in good yield, the crystal structure of which is reported. 119Sn NMR and X-ray studies indicate that [cyclo-CH2[Sn(Cl2)CH2Si(Me2)]2O] acts as a bidentate Lewis acid towards chloride ions exclusively forming the 1:1 complex [(Ph3P)2N]+[cyclo-CH2[Sn(Cl2)CH2Si(Me2)]2OCl]- upon addition of [(Ph3P)2N]+Cl- . Also reported are the synthesis and structure of [K(dibenzo[18]crown-6)]+[cyclo-CH2(Sn(Cl2)CH2Si(Me2)]2OF]-, the first completely characterised organostannate with a C2SnCl2F- substituent pattern. No ring-opening polymerisation could be achieved for [cyclo-CH2[Sn(Cl2)CH2Si(Me2)]2O] or for its perphenylated derivative [cyclo-CH2[Sn(Ph2)CH2Si(Me2)]2O]. The reaction of [cyclo-CH2[Sn(Cl2)CH2Si(Me2)]2O] with Me3O+BF4- gave the tin-containing fluorosilane [CH2[Sn(Cl2)CH2Si(F)Me2]2], in which the Si-F bond is activated by intermolecular Si-F...Sn interactions in the solid state.

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Section: Resultsmentioning

confidence: 99%

[cyclo-CH2{Sn(Cl2)CH2Si(Me2)}2O]: Synthesis and Complexation Behaviour of a Novel, Cyclic, Bidentate Lewis Acid and Its Conversion into a Tin-Containing Fluorosilane with Intermolecular Si−F⋅⋅⋅Sn Bridges

Schulte¹,

Schürmann²,

Jurkschat³

2001

Chem. Eur. J.

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Hypervalent Compounds of Organic Germanium, Tin and Lead Derivatives

Baukov

Tandura

2009

Patai's Chemistry of Functional Groups

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Introduction and Outline Self‐Associates Pentacoordinate Anionic Compounds Pentacoordinate Intermolecular Neutral Compounds Pentacoordinate Intramolecular Neutral Germanium Compounds Pentacoordinate Intramolecular Neutral Tin and Lead Compounds Pentacoordinate Cationic Compounds Hexacoordinate Anionic Compounds Hexacoordinate Neutral Compounds Hexacoordinate Cationic Tin Compounds Acknowledgments

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o-ANISYLSTANNYL DERIVATIVES (o-MeOC6H4)nSnX4-n . CRYSTAL STRUCTURES OF (o-An)nSnX4-n (n = 2, X = Ph or I; n = 1, X = Br)

Cited by 2 publications

References 18 publications

[cyclo-CH2{Sn(Cl2)CH2Si(Me2)}2O]: Synthesis and Complexation Behaviour of a Novel, Cyclic, Bidentate Lewis Acid and Its Conversion into a Tin-Containing Fluorosilane with Intermolecular Si−F⋅⋅⋅Sn Bridges

[cyclo-CH2{Sn(Cl2)CH2Si(Me2)}2O]: Synthesis and Complexation Behaviour of a Novel, Cyclic, Bidentate Lewis Acid and Its Conversion into a Tin-Containing Fluorosilane with Intermolecular Si−F⋅⋅⋅Sn Bridges

Hypervalent Compounds of Organic Germanium, Tin and Lead Derivatives

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