Very Large Changes in Bond Length and Bond Angle in a Heavy Group 14 Element Alkyne Analogue by Modification of a Remote Ligand Substituent.

Roland C. Fischer; Lihung Pu; James C. Fettinger; Marcin A. Brynda; Philip P. Power

doi:10.1021/ja0637090

Very Large Changes in Bond Length and Bond Angle in a Heavy Group 14 Element Alkyne Analogue by Modification of a Remote Ligand Substituent.

Roland C. Fischer, Lihung Pu, James C. Fettinger, Marcin A. Brynda, Philip P. Power

Institute of Inorganic Chemistry (6330)

Research output: Contribution to journal › Article › peer-review

Abstract

The synthesis and characterization of the compd. Me3Si-4-Ar'SnSnAr'-4-SiMe3 (Ar'-4-SiMe3 = C6H2-2,6-(C6H3-2,6-i-Pr2)2-4-SiMe3) shows that it has a Sn-Sn bond length = 3.066(1) Å and a Sn-Sn-C bending angle of 99.25(14)°. These parameters differ by ∼0.4 Å and ∼26° from those previously reported for the closely related Ar'SnSnAr' (Ar' = C6H3-2,6-(C6H3-2,6-i-Pr2)2). In accordance with the theor. predictions by Nagase and Takagi, very small amts. of energy (∼5 kcal mol-1) sep. structural isomers of distannynes that have large differences in their bonding parameters. [on SciFinder(R)]

Original language	English
Pages (from-to)	11366-11367
Number of pages	2
Journal	Journal of the American Chemical Society
Volume	128
Issue number	35
DOIs	https://doi.org/10.1021/ja0637090
Publication status	Published - 2006

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10.1021/ja0637090

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@article{db974accd650417e840ecfa4637c6865,

title = "Very Large Changes in Bond Length and Bond Angle in a Heavy Group 14 Element Alkyne Analogue by Modification of a Remote Ligand Substituent.",

abstract = "The synthesis and characterization of the compd. Me3Si-4-Ar'SnSnAr'-4-SiMe3 (Ar'-4-SiMe3 = C6H2-2,6-(C6H3-2,6-i-Pr2)2-4-SiMe3) shows that it has a Sn-Sn bond length = 3.066(1) {\AA} and a Sn-Sn-C bending angle of 99.25(14)°. These parameters differ by ∼0.4 {\AA} and ∼26° from those previously reported for the closely related Ar'SnSnAr' (Ar' = C6H3-2,6-(C6H3-2,6-i-Pr2)2). In accordance with the theor. predictions by Nagase and Takagi, very small amts. of energy (∼5 kcal mol-1) sep. structural isomers of distannynes that have large differences in their bonding parameters. [on SciFinder(R)]",

keywords = "potassium redn dimerization chlorostannyl terphenylsilane, crystal structure distannane bis terphenylsilane, mol structure distannane bis terphenylsilane",

author = "Fischer, {Roland C.} and Lihung Pu and Fettinger, {James C.} and Brynda, {Marcin A.} and Power, {Philip P.}",

year = "2006",

doi = "10.1021/ja0637090",

language = "English",

volume = "128",

pages = "11366--11367",

journal = "Journal of the American Chemical Society",

issn = "0002-7863",

publisher = "American Chemical Society",

number = "35",

}

TY - JOUR

T1 - Very Large Changes in Bond Length and Bond Angle in a Heavy Group 14 Element Alkyne Analogue by Modification of a Remote Ligand Substituent.

AU - Fischer, Roland C.

AU - Pu, Lihung

AU - Fettinger, James C.

AU - Brynda, Marcin A.

AU - Power, Philip P.

PY - 2006

Y1 - 2006

N2 - The synthesis and characterization of the compd. Me3Si-4-Ar'SnSnAr'-4-SiMe3 (Ar'-4-SiMe3 = C6H2-2,6-(C6H3-2,6-i-Pr2)2-4-SiMe3) shows that it has a Sn-Sn bond length = 3.066(1) Å and a Sn-Sn-C bending angle of 99.25(14)°. These parameters differ by ∼0.4 Å and ∼26° from those previously reported for the closely related Ar'SnSnAr' (Ar' = C6H3-2,6-(C6H3-2,6-i-Pr2)2). In accordance with the theor. predictions by Nagase and Takagi, very small amts. of energy (∼5 kcal mol-1) sep. structural isomers of distannynes that have large differences in their bonding parameters. [on SciFinder(R)]

AB - The synthesis and characterization of the compd. Me3Si-4-Ar'SnSnAr'-4-SiMe3 (Ar'-4-SiMe3 = C6H2-2,6-(C6H3-2,6-i-Pr2)2-4-SiMe3) shows that it has a Sn-Sn bond length = 3.066(1) Å and a Sn-Sn-C bending angle of 99.25(14)°. These parameters differ by ∼0.4 Å and ∼26° from those previously reported for the closely related Ar'SnSnAr' (Ar' = C6H3-2,6-(C6H3-2,6-i-Pr2)2). In accordance with the theor. predictions by Nagase and Takagi, very small amts. of energy (∼5 kcal mol-1) sep. structural isomers of distannynes that have large differences in their bonding parameters. [on SciFinder(R)]

KW - potassium redn dimerization chlorostannyl terphenylsilane

KW - crystal structure distannane bis terphenylsilane

KW - mol structure distannane bis terphenylsilane

U2 - 10.1021/ja0637090

DO - 10.1021/ja0637090

M3 - Article

SN - 0002-7863

VL - 128

SP - 11366

EP - 11367

JO - Journal of the American Chemical Society

JF - Journal of the American Chemical Society

IS - 35

ER -