Reactions of an anionic chelate phosphane/borata-alkene ligand with [Rh(nbd)Cl]2, [Rh(CO)2Cl]2and [Ir(cod)Cl]2

Kohei Watanabe; Atsushi Ueno; Xin Tao; Karel Škoch; Xiaoming Jie; Sergei Vagin; Bernhard Rieger; Constantin G. Daniliuc; Matthias C. Letzel; Gerald Kehr; Gerhard Erker

doi:10.1039/d0sc02223c

Reactions of an anionic chelate phosphane/borata-alkene ligand with [Rh(nbd)Cl]₂, [Rh(CO)₂Cl]₂and [Ir(cod)Cl]₂

Kohei Watanabe, Atsushi Ueno, Xin Tao, Karel Škoch, Xiaoming Jie, Sergei Vagin, Bernhard Rieger, Constantin G. Daniliuc, Matthias C. Letzel, Gerald Kehr, Gerhard Erker

Wacker-Chair of Macromolecular Chemistry

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

15 Scopus citations

Abstract

Borata-alkenes can serve as anionic olefin equivalent ligands in transition metal chemistry. A chelate ligand of this type is described and used for metal coordination. Deprotonation of the Mes2P(CH2)2B(C6F5)2 frustrated Lewis pair in the α-CH[B] position gave the methylene-bridged phosphane/borata-alkene anion. It reacted with the [Rh(nbd)Cl] or [Rh(CO)2Cl] dimers to give the respective neutral chelate [P/CB][Rh] complexes. The reaction of the [P/CB]- anion with [Ir(cod)Cl]2 proceeded similarly, only that the complex underwent a subsequent oxidative addition reaction at the mesityl substituent. Both the resulting Ir(iii)hydride complex 15 and the P/borata-alkene Rh system 12 were used as hydrogenation catalysts. The [P/CB(C6F5)2]Rh(nbd) complex 12 served as a catalyst for arylacetylene polymerization.

Original language	English
Pages (from-to)	7349-7355
Number of pages	7
Journal	Chemical Science
Volume	11
Issue number	28
DOIs	https://doi.org/10.1039/d0sc02223c
State	Published - 28 Jun 2020

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@article{3300097076ae4c729b1a53a12f3ae471,

title = "Reactions of an anionic chelate phosphane/borata-alkene ligand with [Rh(nbd)Cl]2, [Rh(CO)2Cl]2and [Ir(cod)Cl]2",

abstract = "Borata-alkenes can serve as anionic olefin equivalent ligands in transition metal chemistry. A chelate ligand of this type is described and used for metal coordination. Deprotonation of the Mes2P(CH2)2B(C6F5)2 frustrated Lewis pair in the α-CH[B] position gave the methylene-bridged phosphane/borata-alkene anion. It reacted with the [Rh(nbd)Cl] or [Rh(CO)2Cl] dimers to give the respective neutral chelate [P/CB][Rh] complexes. The reaction of the [P/CB]- anion with [Ir(cod)Cl]2 proceeded similarly, only that the complex underwent a subsequent oxidative addition reaction at the mesityl substituent. Both the resulting Ir(iii)hydride complex 15 and the P/borata-alkene Rh system 12 were used as hydrogenation catalysts. The [P/CB(C6F5)2]Rh(nbd) complex 12 served as a catalyst for arylacetylene polymerization.",

author = "Kohei Watanabe and Atsushi Ueno and Xin Tao and Karel {\v S}koch and Xiaoming Jie and Sergei Vagin and Bernhard Rieger and Daniliuc, {Constantin G.} and Letzel, {Matthias C.} and Gerald Kehr and Gerhard Erker",

note = "Publisher Copyright: {\textcopyright} The Royal Society of Chemistry.",

year = "2020",

month = jun,

day = "28",

doi = "10.1039/d0sc02223c",

language = "English",

volume = "11",

pages = "7349--7355",

journal = "Chemical Science",

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TY - JOUR

T1 - Reactions of an anionic chelate phosphane/borata-alkene ligand with [Rh(nbd)Cl]2, [Rh(CO)2Cl]2and [Ir(cod)Cl]2

AU - Watanabe, Kohei

AU - Ueno, Atsushi

AU - Tao, Xin

AU - Škoch, Karel

AU - Jie, Xiaoming

AU - Vagin, Sergei

AU - Rieger, Bernhard

AU - Daniliuc, Constantin G.

AU - Letzel, Matthias C.

AU - Kehr, Gerald

AU - Erker, Gerhard

PY - 2020/6/28

Y1 - 2020/6/28

N2 - Borata-alkenes can serve as anionic olefin equivalent ligands in transition metal chemistry. A chelate ligand of this type is described and used for metal coordination. Deprotonation of the Mes2P(CH2)2B(C6F5)2 frustrated Lewis pair in the α-CH[B] position gave the methylene-bridged phosphane/borata-alkene anion. It reacted with the [Rh(nbd)Cl] or [Rh(CO)2Cl] dimers to give the respective neutral chelate [P/CB][Rh] complexes. The reaction of the [P/CB]- anion with [Ir(cod)Cl]2 proceeded similarly, only that the complex underwent a subsequent oxidative addition reaction at the mesityl substituent. Both the resulting Ir(iii)hydride complex 15 and the P/borata-alkene Rh system 12 were used as hydrogenation catalysts. The [P/CB(C6F5)2]Rh(nbd) complex 12 served as a catalyst for arylacetylene polymerization.

AB - Borata-alkenes can serve as anionic olefin equivalent ligands in transition metal chemistry. A chelate ligand of this type is described and used for metal coordination. Deprotonation of the Mes2P(CH2)2B(C6F5)2 frustrated Lewis pair in the α-CH[B] position gave the methylene-bridged phosphane/borata-alkene anion. It reacted with the [Rh(nbd)Cl] or [Rh(CO)2Cl] dimers to give the respective neutral chelate [P/CB][Rh] complexes. The reaction of the [P/CB]- anion with [Ir(cod)Cl]2 proceeded similarly, only that the complex underwent a subsequent oxidative addition reaction at the mesityl substituent. Both the resulting Ir(iii)hydride complex 15 and the P/borata-alkene Rh system 12 were used as hydrogenation catalysts. The [P/CB(C6F5)2]Rh(nbd) complex 12 served as a catalyst for arylacetylene polymerization.

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U2 - 10.1039/d0sc02223c

DO - 10.1039/d0sc02223c

M3 - Article

AN - SCOPUS:85094206632

SN - 2041-6520

VL - 11

SP - 7349

EP - 7355

JO - Chemical Science

JF - Chemical Science

IS - 28

ER -

Reactions of an anionic chelate phosphane/borata-alkene ligand with [Rh(nbd)Cl]₂, [Rh(CO)₂Cl]₂and [Ir(cod)Cl]₂

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