Bimetallic Complexes of Group 8, 9, and 11 Metals Bridged by RB(NCH2PPh2)2C6H4 (R = H, 4-C6H4X; X = H, Me, F) Ligands

Simon Sung; Angelina Ang; Anthony F. Hill; Chenxi Ma; Richard Y. Kong; Jas S. Ward; Rowan D. Young

doi:10.1002/ejic.201800448

Bimetallic Complexes of Group 8, 9, and 11 Metals Bridged by RB(NCH₂PPh₂)₂C₆H₄ (R = H, 4-C₆H₄X; X = H, Me, F) Ligands

Simon Sung, Angelina Ang, Anthony F. Hill, Chenxi Ma, Richard Y. Kong, Jas S. Ward, Rowan D. Young^*

^*Corresponding author for this work

Research School of Chemistry

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

3 Citations (Scopus)

Abstract

The 1-aryl-2,1,3-diazaboroles ArB(NCH₂PPh₂)₂C₆H₄ (Ar = C₆H₅ 1a, 4-MeC₆H₄ 1b, 4-FC₆H₄ 1c) result from the reactions of ArBCl₂ with 1,2-(NHCH₂PPh₂)₂C₆H₄ in the presence of triethylamine. The reactions of these new proligands in addition to the parent diazaborole HB(NCH₂PPh₂)₂C₆H₄ (4) with a range of metal precursors [Ru₂(µ-Cl)₂Cl₂(η⁶-1,3,5-Me₃C₆H₃)₂], [M₂(µ-Cl)₂Cl₂(η⁵-C₅Me₅)₂], [M₂(µ-Cl)₂(η⁴-C₈H₁₂)₂] (M = Rh, Ir) and [AuCl(SC₄H₈)] have been explored. Rather than forming chelating, bidentate mono-metallic complexes, these ligands are found to support the formation of bimetallic complexes without any indication of B–C activation (oxidative addition, transmetallation etc.). In the presence of excess 1a–b, iridium is found to form ligand bridged coordination polymers.

Original language	English
Pages (from-to)	2855-2864
Number of pages	10
Journal	European Journal of Inorganic Chemistry
Volume	2018
Issue number	24
Early online date	11 Jun 2018
DOIs	https://doi.org/10.1002/ejic.201800448
Publication status	Published - 29 Jun 2018

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@article{fe59a11772bd4439a1cc35843395bf9e,

title = "Bimetallic Complexes of Group 8, 9, and 11 Metals Bridged by RB(NCH2PPh2)2C6H4 (R = H, 4-C6H4X; X = H, Me, F) Ligands",

abstract = "The 1-aryl-2,1,3-diazaboroles ArB(NCH2PPh2)2C6H4 (Ar = C6H5 1a, 4-MeC6H4 1b, 4-FC6H4 1c) result from the reactions of ArBCl2 with 1,2-(NHCH2PPh2)2C6H4 in the presence of triethylamine. The reactions of these new proligands in addition to the parent diazaborole HB(NCH2PPh2)2C6H4 (4) with a range of metal precursors [Ru2(µ-Cl)2Cl2(η6-1,3,5-Me3C6H3)2], [M2(µ-Cl)2Cl2(η5-C5Me5)2], [M2(µ-Cl)2(η4-C8H12)2] (M = Rh, Ir) and [AuCl(SC4H8)] have been explored. Rather than forming chelating, bidentate mono-metallic complexes, these ligands are found to support the formation of bimetallic complexes without any indication of B–C activation (oxidative addition, transmetallation etc.). In the presence of excess 1a–b, iridium is found to form ligand bridged coordination polymers.",

keywords = "Aryl-diazaborole, Boron, Bridging ligands, Coordination chemistry, Coordination modes",

author = "Simon Sung and Angelina Ang and Hill, \{Anthony F.\} and Chenxi Ma and Kong, \{Richard Y.\} and Ward, \{Jas S.\} and Young, \{Rowan D.\}",

note = "Publisher Copyright: {\textcopyright} 2018 WILEY-VCH Verlag GmbH \& Co. KGaA, Weinheim",

year = "2018",

month = jun,

day = "29",

doi = "10.1002/ejic.201800448",

language = "English",

volume = "2018",

pages = "2855--2864",

journal = "European Journal of Inorganic Chemistry",

issn = "1434-1948",

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number = "24",

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T1 - Bimetallic Complexes of Group 8, 9, and 11 Metals Bridged by RB(NCH2PPh2)2C6H4 (R = H, 4-C6H4X; X = H, Me, F) Ligands

AU - Sung, Simon

AU - Ang, Angelina

AU - Hill, Anthony F.

AU - Ma, Chenxi

AU - Kong, Richard Y.

AU - Ward, Jas S.

AU - Young, Rowan D.

PY - 2018/6/29

Y1 - 2018/6/29

N2 - The 1-aryl-2,1,3-diazaboroles ArB(NCH2PPh2)2C6H4 (Ar = C6H5 1a, 4-MeC6H4 1b, 4-FC6H4 1c) result from the reactions of ArBCl2 with 1,2-(NHCH2PPh2)2C6H4 in the presence of triethylamine. The reactions of these new proligands in addition to the parent diazaborole HB(NCH2PPh2)2C6H4 (4) with a range of metal precursors [Ru2(µ-Cl)2Cl2(η6-1,3,5-Me3C6H3)2], [M2(µ-Cl)2Cl2(η5-C5Me5)2], [M2(µ-Cl)2(η4-C8H12)2] (M = Rh, Ir) and [AuCl(SC4H8)] have been explored. Rather than forming chelating, bidentate mono-metallic complexes, these ligands are found to support the formation of bimetallic complexes without any indication of B–C activation (oxidative addition, transmetallation etc.). In the presence of excess 1a–b, iridium is found to form ligand bridged coordination polymers.

AB - The 1-aryl-2,1,3-diazaboroles ArB(NCH2PPh2)2C6H4 (Ar = C6H5 1a, 4-MeC6H4 1b, 4-FC6H4 1c) result from the reactions of ArBCl2 with 1,2-(NHCH2PPh2)2C6H4 in the presence of triethylamine. The reactions of these new proligands in addition to the parent diazaborole HB(NCH2PPh2)2C6H4 (4) with a range of metal precursors [Ru2(µ-Cl)2Cl2(η6-1,3,5-Me3C6H3)2], [M2(µ-Cl)2Cl2(η5-C5Me5)2], [M2(µ-Cl)2(η4-C8H12)2] (M = Rh, Ir) and [AuCl(SC4H8)] have been explored. Rather than forming chelating, bidentate mono-metallic complexes, these ligands are found to support the formation of bimetallic complexes without any indication of B–C activation (oxidative addition, transmetallation etc.). In the presence of excess 1a–b, iridium is found to form ligand bridged coordination polymers.

KW - Aryl-diazaborole

KW - Boron

KW - Bridging ligands

KW - Coordination chemistry

KW - Coordination modes

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U2 - 10.1002/ejic.201800448

DO - 10.1002/ejic.201800448

M3 - Article

SN - 1434-1948

VL - 2018

SP - 2855

EP - 2864

JO - European Journal of Inorganic Chemistry

JF - European Journal of Inorganic Chemistry

IS - 24

ER -

Bimetallic Complexes of Group 8, 9, and 11 Metals Bridged by RB(NCH₂PPh₂)₂C₆H₄ (R = H, 4-C₆H₄X; X = H, Me, F) Ligands

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