Synthesis and reactivity of bimetallic palladium(II) methyl complexes with new functional phosphine ligands

Jang Sub Kim; Ayusman Sen; Ilia A. Guzei; Louise M. Liable-Sands; Arnold L. Rheingold

Synthesis and reactivity of bimetallic palladium(II) methyl complexes with new functional phosphine ligands

Jang Sub Kim
, Ayusman Sen
, Ilia A. Guzei
, Louise M. Liable-Sands
, Arnold L. Rheingold

Chemistry

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

18 Scopus citations

Abstract

Bimetallic palladium(II) methyl complexes, [Pd(dppmpH)(CH₃)(μ-Cl)]₂ (1) and [Pd(dippmpH)(CH₃)(μ-Cl)]₂ (2) were synthesized by the reaction of (COD)Pd(CH₃)(Cl) (COD = 1,5-cyclooctadiene) with the new functional phosphine ligands 2-diphenylphosphino-4-methylphenol (dppmpH) and 2-diisopropylphosphino-4-methylphenol (dippmpH). The homolytic cleavage of the CH₃-Pd bond was found to occur when complexes 1 and 2 were heated or photolyzed to form a methyl radical and the corresponding oxygen-bridged bimetallic palladium(II) complexes, [Pd(dppmp)(Cl)]₂ (3) and [Pd(dippmp)(Cl)]₂ (4), respectively. The molecular structures of complexes 1, 3 and 4 were determined by single-crystal X-ray diffraction. Reaction of small molecules, such as CO, SO₂ and CH₂=CH₂, with complexes 1 and 2 was observed and characterized by IR, ¹H, ¹³C and ³¹P{¹H} NMR spectroscopy.

Original language	English (US)
Pages (from-to)	4726-4731
Number of pages	6
Journal	Journal of the Chemical Society. Dalton Transactions
Issue number	24
State	Published - Dec 21 2002

All Science Journal Classification (ASJC) codes

General Chemistry

Cite this

@article{b085c88dd171473fa9c5ee6916202d15,

title = "Synthesis and reactivity of bimetallic palladium(II) methyl complexes with new functional phosphine ligands",

abstract = "Bimetallic palladium(II) methyl complexes, [Pd(dppmpH)(CH3)(μ-Cl)]2 (1) and [Pd(dippmpH)(CH3)(μ-Cl)]2 (2) were synthesized by the reaction of (COD)Pd(CH3)(Cl) (COD = 1,5-cyclooctadiene) with the new functional phosphine ligands 2-diphenylphosphino-4-methylphenol (dppmpH) and 2-diisopropylphosphino-4-methylphenol (dippmpH). The homolytic cleavage of the CH3-Pd bond was found to occur when complexes 1 and 2 were heated or photolyzed to form a methyl radical and the corresponding oxygen-bridged bimetallic palladium(II) complexes, [Pd(dppmp)(Cl)]2 (3) and [Pd(dippmp)(Cl)]2 (4), respectively. The molecular structures of complexes 1, 3 and 4 were determined by single-crystal X-ray diffraction. Reaction of small molecules, such as CO, SO2 and CH2=CH2, with complexes 1 and 2 was observed and characterized by IR, 1H, 13C and 31P\{1H\} NMR spectroscopy.",

author = "Kim, \{Jang Sub\} and Ayusman Sen and Guzei, \{Ilia A.\} and Liable-Sands, \{Louise M.\} and Rheingold, \{Arnold L.\}",

year = "2002",

month = dec,

day = "21",

language = "English (US)",

pages = "4726--4731",

journal = "Journal of the Chemical Society. Dalton Transactions",

issn = "1472-7773",

number = "24",

}

TY - JOUR

T1 - Synthesis and reactivity of bimetallic palladium(II) methyl complexes with new functional phosphine ligands

AU - Kim, Jang Sub

AU - Sen, Ayusman

AU - Guzei, Ilia A.

AU - Liable-Sands, Louise M.

AU - Rheingold, Arnold L.

PY - 2002/12/21

Y1 - 2002/12/21

N2 - Bimetallic palladium(II) methyl complexes, [Pd(dppmpH)(CH3)(μ-Cl)]2 (1) and [Pd(dippmpH)(CH3)(μ-Cl)]2 (2) were synthesized by the reaction of (COD)Pd(CH3)(Cl) (COD = 1,5-cyclooctadiene) with the new functional phosphine ligands 2-diphenylphosphino-4-methylphenol (dppmpH) and 2-diisopropylphosphino-4-methylphenol (dippmpH). The homolytic cleavage of the CH3-Pd bond was found to occur when complexes 1 and 2 were heated or photolyzed to form a methyl radical and the corresponding oxygen-bridged bimetallic palladium(II) complexes, [Pd(dppmp)(Cl)]2 (3) and [Pd(dippmp)(Cl)]2 (4), respectively. The molecular structures of complexes 1, 3 and 4 were determined by single-crystal X-ray diffraction. Reaction of small molecules, such as CO, SO2 and CH2=CH2, with complexes 1 and 2 was observed and characterized by IR, 1H, 13C and 31P{1H} NMR spectroscopy.

AB - Bimetallic palladium(II) methyl complexes, [Pd(dppmpH)(CH3)(μ-Cl)]2 (1) and [Pd(dippmpH)(CH3)(μ-Cl)]2 (2) were synthesized by the reaction of (COD)Pd(CH3)(Cl) (COD = 1,5-cyclooctadiene) with the new functional phosphine ligands 2-diphenylphosphino-4-methylphenol (dppmpH) and 2-diisopropylphosphino-4-methylphenol (dippmpH). The homolytic cleavage of the CH3-Pd bond was found to occur when complexes 1 and 2 were heated or photolyzed to form a methyl radical and the corresponding oxygen-bridged bimetallic palladium(II) complexes, [Pd(dppmp)(Cl)]2 (3) and [Pd(dippmp)(Cl)]2 (4), respectively. The molecular structures of complexes 1, 3 and 4 were determined by single-crystal X-ray diffraction. Reaction of small molecules, such as CO, SO2 and CH2=CH2, with complexes 1 and 2 was observed and characterized by IR, 1H, 13C and 31P{1H} NMR spectroscopy.

UR - https://www.scopus.com/pages/publications/0037153801

UR - https://www.scopus.com/pages/publications/0037153801#tab=citedBy

M3 - Article

AN - SCOPUS:0037153801

SN - 1472-7773

SP - 4726

EP - 4731

JO - Journal of the Chemical Society. Dalton Transactions

JF - Journal of the Chemical Society. Dalton Transactions

IS - 24

ER -

Synthesis and reactivity of bimetallic palladium(II) methyl complexes with new functional phosphine ligands

Abstract

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