Open Platinum Aggregate Frameworks with Overhead Dithiolate Bridges

Siew Huay Chong; William Henderson; T S Andy Hor

doi:10.1002/ejic.200700620

Open Platinum Aggregate Frameworks with Overhead Dithiolate Bridges

Siew Huay Chong, William Henderson, T S Andy Hor

Chemistry

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Abstract

A convenient method has been developed to bring together two discrete moieties of [Pt₂(μ-S)₂(PPh₃)₄] to give an open Pt₄ aggregate of Pt₂···(spacer)···Pt₂, as exemplified in the isolation of [(PPh₃)₄Pt₂(μ-S)(μ-SRS)(μ-S)Pt₂(PPh₃)₄](PF₆)₂ [R = m-CH₂C₆H₄CH₂, p-CH₂C₆H₄CH₂, CH₂C₁₀H₆CH₂, and CH₂(C₆H₄)₂CH₂]. The spacer is a dithiolate with an extended skeletal backbone formed from the alkylation of sulfide with a suitable dibromo-organic compound. This synthetic methodology can tolerate a range of conformationally contrasting thiolate substituents with different chemical functionalities. Shorter or stereochemically more restrictive spacers could opt to be an intramolecular bridge over the Pt₂ core, as given in [Pt₂(μ-S-o-CH₂C₆H₄-C₆H₄CH₂S)(PPh₃)₄](PF₆)₂. A few representative complexes have been characterized by single-crystal X-ray diffraction analysis.

Original language	English
Pages (from-to)	4958-4964
Journal	European Journal of Inorganic Chemistry
Volume	2007
Issue number	31
DOIs	https://doi.org/10.1002/ejic.200700620
Publication status	Published - 30 Nov 2007

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@article{e31558502acd4ba6af9b361f652b779e,

title = "Open Platinum Aggregate Frameworks with Overhead Dithiolate Bridges",

abstract = "A convenient method has been developed to bring together two discrete moieties of [Pt2(μ-S)2(PPh3)4] to give an open Pt4 aggregate of Pt2···(spacer)···Pt2, as exemplified in the isolation of [(PPh3)4Pt2(μ-S)(μ-SRS)(μ-S)Pt2(PPh3)4](PF6)2 [R = m-CH2C6H4CH2, p-CH2C6H4CH2, CH2C10H6CH2, and CH2(C6H4)2CH2]. The spacer is a dithiolate with an extended skeletal backbone formed from the alkylation of sulfide with a suitable dibromo-organic compound. This synthetic methodology can tolerate a range of conformationally contrasting thiolate substituents with different chemical functionalities. Shorter or stereochemically more restrictive spacers could opt to be an intramolecular bridge over the Pt2 core, as given in [Pt2(μ-S-o-CH2C6H4-C6H4CH2S)(PPh3)4](PF6)2. A few representative complexes have been characterized by single-crystal X-ray diffraction analysis.",

author = "Chong, \{Siew Huay\} and William Henderson and Hor, \{T S Andy\}",

year = "2007",

month = nov,

day = "30",

doi = "10.1002/ejic.200700620",

language = "English",

volume = "2007",

pages = "4958--4964",

journal = "European Journal of Inorganic Chemistry",

issn = "1434-1948",

publisher = "Wiley-VCH Verlag GmbH \& Co KGaA",

number = "31",

}

TY - JOUR

T1 - Open Platinum Aggregate Frameworks with Overhead Dithiolate Bridges

AU - Chong, Siew Huay

AU - Henderson, William

AU - Hor, T S Andy

PY - 2007/11/30

Y1 - 2007/11/30

N2 - A convenient method has been developed to bring together two discrete moieties of [Pt2(μ-S)2(PPh3)4] to give an open Pt4 aggregate of Pt2···(spacer)···Pt2, as exemplified in the isolation of [(PPh3)4Pt2(μ-S)(μ-SRS)(μ-S)Pt2(PPh3)4](PF6)2 [R = m-CH2C6H4CH2, p-CH2C6H4CH2, CH2C10H6CH2, and CH2(C6H4)2CH2]. The spacer is a dithiolate with an extended skeletal backbone formed from the alkylation of sulfide with a suitable dibromo-organic compound. This synthetic methodology can tolerate a range of conformationally contrasting thiolate substituents with different chemical functionalities. Shorter or stereochemically more restrictive spacers could opt to be an intramolecular bridge over the Pt2 core, as given in [Pt2(μ-S-o-CH2C6H4-C6H4CH2S)(PPh3)4](PF6)2. A few representative complexes have been characterized by single-crystal X-ray diffraction analysis.

AB - A convenient method has been developed to bring together two discrete moieties of [Pt2(μ-S)2(PPh3)4] to give an open Pt4 aggregate of Pt2···(spacer)···Pt2, as exemplified in the isolation of [(PPh3)4Pt2(μ-S)(μ-SRS)(μ-S)Pt2(PPh3)4](PF6)2 [R = m-CH2C6H4CH2, p-CH2C6H4CH2, CH2C10H6CH2, and CH2(C6H4)2CH2]. The spacer is a dithiolate with an extended skeletal backbone formed from the alkylation of sulfide with a suitable dibromo-organic compound. This synthetic methodology can tolerate a range of conformationally contrasting thiolate substituents with different chemical functionalities. Shorter or stereochemically more restrictive spacers could opt to be an intramolecular bridge over the Pt2 core, as given in [Pt2(μ-S-o-CH2C6H4-C6H4CH2S)(PPh3)4](PF6)2. A few representative complexes have been characterized by single-crystal X-ray diffraction analysis.

U2 - 10.1002/ejic.200700620

DO - 10.1002/ejic.200700620

M3 - Article

SN - 1434-1948

VL - 2007

SP - 4958

EP - 4964

JO - European Journal of Inorganic Chemistry

JF - European Journal of Inorganic Chemistry

IS - 31

ER -

Open Platinum Aggregate Frameworks with Overhead Dithiolate Bridges

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