Palladium(II) complexes supported by a bidentate bis(secondary)phosphine linked by pyridine

Matthew S. Winston; John E. Bercaw

doi:10.1016/j.ica.2014.08.002

Palladium(II) complexes supported by a bidentate bis(secondary)phosphine linked by pyridine

Matthew S. Winston, John E. Bercaw

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

2 Scopus citations

Abstract

A series of complexes of the type (PNP-H2)PdX2 (X=Cl, Br, I) have been synthesized, where PNP-H2 is a bis(secondary)phosphine ligand linked by a pyridine, 2,6-(2'-(Ph(H)P)(C6H4))2(C5H3N). Due to chirality at phosphorus, the parent ligand exists as a mixture of nearly equivalent rac and meso diastereomers non-interconverting at room temperature. When ligated to Pd(II) halides, however, the diastereomeric ratio is dependent upon the halide. The chloro, bromo, and iodo complexes have been characterized crystallographically. Conformationally similar meso diastereomers of each dihalide are roughly C s symmetric in the solid state, while the rac diastereomers (identified only for X=Br, I) show substantially different solid-state conformations. © 2014 Elsevier B.V.

Original language	English (US)
Pages (from-to)	30-35
Number of pages	6
Journal	Inorganica Chimica Acta
Volume	422
DOIs	https://doi.org/10.1016/j.ica.2014.08.002
State	Published - Oct 2014
Externally published	Yes

Bibliographical note

KAUST Repository Item: Exported on 2020-10-01
Acknowledgements: The Bruker KAPPA APEXII X-ray diffractometer was purchased via an NSF CRIF:MU award to the California Institute of Technology, CHE-0639094. We gratefully acknowledge the support of the KAUST Center-In-Development at King Fahd University of Petroleum and Minerals (Dhahran, Saudi Arabia) and the USDOE Office of Basic Energy Sciences (Grant No. DE-FG03-85ER13431).
This publication acknowledges KAUST support, but has no KAUST affiliated authors.

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title = "Palladium(II) complexes supported by a bidentate bis(secondary)phosphine linked by pyridine",

abstract = "A series of complexes of the type (PNP-H2)PdX2 (X=Cl, Br, I) have been synthesized, where PNP-H2 is a bis(secondary)phosphine ligand linked by a pyridine, 2,6-(2'-(Ph(H)P)(C6H4))2(C5H3N). Due to chirality at phosphorus, the parent ligand exists as a mixture of nearly equivalent rac and meso diastereomers non-interconverting at room temperature. When ligated to Pd(II) halides, however, the diastereomeric ratio is dependent upon the halide. The chloro, bromo, and iodo complexes have been characterized crystallographically. Conformationally similar meso diastereomers of each dihalide are roughly C s symmetric in the solid state, while the rac diastereomers (identified only for X=Br, I) show substantially different solid-state conformations. {\textcopyright} 2014 Elsevier B.V.",

author = "Winston, {Matthew S.} and Bercaw, {John E.}",

note = "KAUST Repository Item: Exported on 2020-10-01 Acknowledgements: The Bruker KAPPA APEXII X-ray diffractometer was purchased via an NSF CRIF:MU award to the California Institute of Technology, CHE-0639094. We gratefully acknowledge the support of the KAUST Center-In-Development at King Fahd University of Petroleum and Minerals (Dhahran, Saudi Arabia) and the USDOE Office of Basic Energy Sciences (Grant No. DE-FG03-85ER13431). This publication acknowledges KAUST support, but has no KAUST affiliated authors.",

year = "2014",

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doi = "10.1016/j.ica.2014.08.002",

language = "English (US)",

volume = "422",

pages = "30--35",

journal = "Inorganica Chimica Acta",

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AU - Winston, Matthew S.

AU - Bercaw, John E.

N1 - KAUST Repository Item: Exported on 2020-10-01 Acknowledgements: The Bruker KAPPA APEXII X-ray diffractometer was purchased via an NSF CRIF:MU award to the California Institute of Technology, CHE-0639094. We gratefully acknowledge the support of the KAUST Center-In-Development at King Fahd University of Petroleum and Minerals (Dhahran, Saudi Arabia) and the USDOE Office of Basic Energy Sciences (Grant No. DE-FG03-85ER13431). This publication acknowledges KAUST support, but has no KAUST affiliated authors.

PY - 2014/10

Y1 - 2014/10

N2 - A series of complexes of the type (PNP-H2)PdX2 (X=Cl, Br, I) have been synthesized, where PNP-H2 is a bis(secondary)phosphine ligand linked by a pyridine, 2,6-(2'-(Ph(H)P)(C6H4))2(C5H3N). Due to chirality at phosphorus, the parent ligand exists as a mixture of nearly equivalent rac and meso diastereomers non-interconverting at room temperature. When ligated to Pd(II) halides, however, the diastereomeric ratio is dependent upon the halide. The chloro, bromo, and iodo complexes have been characterized crystallographically. Conformationally similar meso diastereomers of each dihalide are roughly C s symmetric in the solid state, while the rac diastereomers (identified only for X=Br, I) show substantially different solid-state conformations. © 2014 Elsevier B.V.

AB - A series of complexes of the type (PNP-H2)PdX2 (X=Cl, Br, I) have been synthesized, where PNP-H2 is a bis(secondary)phosphine ligand linked by a pyridine, 2,6-(2'-(Ph(H)P)(C6H4))2(C5H3N). Due to chirality at phosphorus, the parent ligand exists as a mixture of nearly equivalent rac and meso diastereomers non-interconverting at room temperature. When ligated to Pd(II) halides, however, the diastereomeric ratio is dependent upon the halide. The chloro, bromo, and iodo complexes have been characterized crystallographically. Conformationally similar meso diastereomers of each dihalide are roughly C s symmetric in the solid state, while the rac diastereomers (identified only for X=Br, I) show substantially different solid-state conformations. © 2014 Elsevier B.V.

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U2 - 10.1016/j.ica.2014.08.002

DO - 10.1016/j.ica.2014.08.002

M3 - Article

SN - 0020-1693

VL - 422

SP - 30

EP - 35

JO - Inorganica Chimica Acta

JF - Inorganica Chimica Acta

ER -

Palladium(II) complexes supported by a bidentate bis(secondary)phosphine linked by pyridine

Abstract

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