Ring-expansion and solvation of cyclodimeric Pd(II) complex

Tae Hwan Noh; Young Mee Na; Young A. Lee; Ok Sang Jung

doi:10.1016/j.molstruc.2009.03.030

Ring-expansion and solvation of cyclodimeric Pd(II) complex

Tae Hwan Noh
, Young Mee Na
, Young A. Lee
, Ok Sang Jung^*

^*Corresponding author for this work

Department of Chemistry

Pusan National University

Research output: Contribution to journal › Journal article › peer-review

Abstract

The reaction of (COD)PdCl₂ (COD = 1,5-cyclooctadiene) in ethanol with 1,7-bis(4-pyridyl)octamethyltetrasiloxane (p-poms) in acetone at room temperature affords single crystals consisting of cyclodimers, [PdCl₂(p-poms)]₂, whereas the reaction in the solvents at boiling temperature yields amorphous solid of cyclotrimers, [PdCl₂(p-poms)]₃. The cyclodimers are completely converted to the cyclotrimers in a boiling chloroform solution. In contrast, the cyclotrimers are partly returned to the cyclodimers in chloroform in the 10-60 °C range. Furthermore, the cyclodimers are retained in dimethyl sulfoxide (Me₂SO), but sonication of the Me₂SO solution results in the stepwise transformation to the cyclotrimers of stepwise Me₂SO-adducts, [Pd₃Cl₅(Me₂SO)(p-poms)₃]·Cl and [PdCl(Me₂SO)(p-poms)]₃·Cl₃ and further the sonication at 60 °C finally yields [Pd(Me₂SO)₂(p-poms)]₃·Cl₆.

Original language	English
Pages (from-to)	144-148
Number of pages	5
Journal	Journal of Molecular Structure
Volume	928
Issue number	1-3
DOIs	https://doi.org/10.1016/j.molstruc.2009.03.030
State	Published - 2009.06.30

Keywords

1,7-Bis(4-pyridyl)octamethyltetrasiloxane
Cyclodimer
Cyclotrimer
Dimethyl sulfoxide adduct
Palladium(II) complexes

Quacquarelli Symonds(QS) Subject Topics

Engineering - Petroleum
Chemistry

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10.1016/j.molstruc.2009.03.030

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@article{e26b9430c8814ef49eb8a2b2d132fe10,

title = "Ring-expansion and solvation of cyclodimeric Pd(II) complex",

abstract = "The reaction of (COD)PdCl2 (COD = 1,5-cyclooctadiene) in ethanol with 1,7-bis(4-pyridyl)octamethyltetrasiloxane (p-poms) in acetone at room temperature affords single crystals consisting of cyclodimers, [PdCl2(p-poms)]2, whereas the reaction in the solvents at boiling temperature yields amorphous solid of cyclotrimers, [PdCl2(p-poms)]3. The cyclodimers are completely converted to the cyclotrimers in a boiling chloroform solution. In contrast, the cyclotrimers are partly returned to the cyclodimers in chloroform in the 10-60 °C range. Furthermore, the cyclodimers are retained in dimethyl sulfoxide (Me2SO), but sonication of the Me2SO solution results in the stepwise transformation to the cyclotrimers of stepwise Me2SO-adducts, [Pd3Cl5(Me2SO)(p-poms)3]·Cl and [PdCl(Me2SO)(p-poms)]3·Cl3 and further the sonication at 60 °C finally yields [Pd(Me2SO)2(p-poms)]3·Cl6.",

keywords = "1,7-Bis(4-pyridyl)octamethyltetrasiloxane, Cyclodimer, Cyclotrimer, Dimethyl sulfoxide adduct, Palladium(II) complexes",

author = "Noh, \{Tae Hwan\} and Na, \{Young Mee\} and Lee, \{Young A.\} and Jung, \{Ok Sang\}",

year = "2009",

month = jun,

day = "30",

doi = "10.1016/j.molstruc.2009.03.030",

language = "English",

volume = "928",

pages = "144--148",

journal = "Journal of Molecular Structure",

issn = "0022-2860",

number = "1-3",

}

TY - JOUR

T1 - Ring-expansion and solvation of cyclodimeric Pd(II) complex

AU - Noh, Tae Hwan

AU - Na, Young Mee

AU - Lee, Young A.

AU - Jung, Ok Sang

PY - 2009/6/30

Y1 - 2009/6/30

N2 - The reaction of (COD)PdCl2 (COD = 1,5-cyclooctadiene) in ethanol with 1,7-bis(4-pyridyl)octamethyltetrasiloxane (p-poms) in acetone at room temperature affords single crystals consisting of cyclodimers, [PdCl2(p-poms)]2, whereas the reaction in the solvents at boiling temperature yields amorphous solid of cyclotrimers, [PdCl2(p-poms)]3. The cyclodimers are completely converted to the cyclotrimers in a boiling chloroform solution. In contrast, the cyclotrimers are partly returned to the cyclodimers in chloroform in the 10-60 °C range. Furthermore, the cyclodimers are retained in dimethyl sulfoxide (Me2SO), but sonication of the Me2SO solution results in the stepwise transformation to the cyclotrimers of stepwise Me2SO-adducts, [Pd3Cl5(Me2SO)(p-poms)3]·Cl and [PdCl(Me2SO)(p-poms)]3·Cl3 and further the sonication at 60 °C finally yields [Pd(Me2SO)2(p-poms)]3·Cl6.

AB - The reaction of (COD)PdCl2 (COD = 1,5-cyclooctadiene) in ethanol with 1,7-bis(4-pyridyl)octamethyltetrasiloxane (p-poms) in acetone at room temperature affords single crystals consisting of cyclodimers, [PdCl2(p-poms)]2, whereas the reaction in the solvents at boiling temperature yields amorphous solid of cyclotrimers, [PdCl2(p-poms)]3. The cyclodimers are completely converted to the cyclotrimers in a boiling chloroform solution. In contrast, the cyclotrimers are partly returned to the cyclodimers in chloroform in the 10-60 °C range. Furthermore, the cyclodimers are retained in dimethyl sulfoxide (Me2SO), but sonication of the Me2SO solution results in the stepwise transformation to the cyclotrimers of stepwise Me2SO-adducts, [Pd3Cl5(Me2SO)(p-poms)3]·Cl and [PdCl(Me2SO)(p-poms)]3·Cl3 and further the sonication at 60 °C finally yields [Pd(Me2SO)2(p-poms)]3·Cl6.

KW - 1,7-Bis(4-pyridyl)octamethyltetrasiloxane

KW - Cyclodimer

KW - Cyclotrimer

KW - Dimethyl sulfoxide adduct

KW - Palladium(II) complexes

UR - https://www.scopus.com/pages/publications/67349101190

U2 - 10.1016/j.molstruc.2009.03.030

DO - 10.1016/j.molstruc.2009.03.030

M3 - Journal article

AN - SCOPUS:67349101190

SN - 0022-2860

VL - 928

SP - 144

EP - 148

JO - Journal of Molecular Structure

JF - Journal of Molecular Structure

IS - 1-3

ER -

Ring-expansion and solvation of cyclodimeric Pd(II) complex

Abstract

Keywords

Quacquarelli Symonds(QS) Subject Topics

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