Cyclometallated complexes of ruthenium and osmium containing the o-C6H4PPh2 ligand

Martin A. Bennett; Alex M. Clark; María Contel; Clifton E.F. Rickard; Warren R. Roper; L. James Wright

doi:10.1016/S0022-328X(00)00086-3

Cyclometallated complexes of ruthenium and osmium containing the o-C₆H₄PPh₂ ligand

Martin A. Bennett^*, Alex M. Clark, María Contel, Clifton E.F. Rickard, Warren R. Roper, L. James Wright

^*Corresponding author for this work

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

23 Citations (Scopus)

Abstract

The reaction between [Hg(o-C₆H₄PPh₂)₂] and [MHCl(CO)(PPh₃)₃] gives the complexes [MCl(o-C₆H₄PPh₂)(CO)(PPh₃) ₂] [M=Ru (1), Os (2)], which contain a four-membered cyclometallated ring. A single-crystal X-ray diffraction study of 2 shows the geometry about osmium to be distorted octahedral with the phosphorus atoms in a meridional arrangement. Both complexes react with CO, which displaces one of the triphenylphosphine ligands, the product from 2 being [OsCl(o-C₆H₄PPh₂)(CO)₂(PPh ₃)]. In the case of 1, there is an accompanying migratory insertion of coordinated CO into the Ru-C bond to give the five-membered cyclic acyl complex [RuCl(o-C(O)C₆H₄PPh₂)(CO)₂(PPh ₃)]. Complex 2 reacts with AgSbF₆ in the presence of CO to give [Os(o-C₆H₄PPh₂)(CO)₂(PPh ₃)₂]SbF₆.

Original language	English
Pages (from-to)	299-304
Number of pages	6
Journal	Journal of Organometallic Chemistry
Volume	601
Issue number	2
DOIs	https://doi.org/10.1016/S0022-328X(00)00086-3
Publication status	Published - 28 Apr 2000

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@article{417a8e456cd44a78ab0beec75febab5a,

title = "Cyclometallated complexes of ruthenium and osmium containing the o-C6H4PPh2 ligand",

abstract = "The reaction between [Hg(o-C6H4PPh2)2] and [MHCl(CO)(PPh3)3] gives the complexes [MCl(o-C6H4PPh2)(CO)(PPh3) 2] [M=Ru (1), Os (2)], which contain a four-membered cyclometallated ring. A single-crystal X-ray diffraction study of 2 shows the geometry about osmium to be distorted octahedral with the phosphorus atoms in a meridional arrangement. Both complexes react with CO, which displaces one of the triphenylphosphine ligands, the product from 2 being [OsCl(o-C6H4PPh2)(CO)2(PPh 3)]. In the case of 1, there is an accompanying migratory insertion of coordinated CO into the Ru-C bond to give the five-membered cyclic acyl complex [RuCl(o-C(O)C6H4PPh2)(CO)2(PPh 3)]. Complex 2 reacts with AgSbF6 in the presence of CO to give [Os(o-C6H4PPh2)(CO)2(PPh 3)2]SbF6.",

keywords = "CO insertion, Cyclometallation, Osmium, Ruthenium",

author = "Bennett, {Martin A.} and Clark, {Alex M.} and Mar{\'i}a Contel and Rickard, {Clifton E.F.} and Roper, {Warren R.} and Wright, {L. James}",

year = "2000",

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day = "28",

doi = "10.1016/S0022-328X(00)00086-3",

language = "English",

volume = "601",

pages = "299--304",

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T1 - Cyclometallated complexes of ruthenium and osmium containing the o-C6H4PPh2 ligand

AU - Bennett, Martin A.

AU - Clark, Alex M.

AU - Contel, María

AU - Rickard, Clifton E.F.

AU - Roper, Warren R.

AU - Wright, L. James

PY - 2000/4/28

Y1 - 2000/4/28

N2 - The reaction between [Hg(o-C6H4PPh2)2] and [MHCl(CO)(PPh3)3] gives the complexes [MCl(o-C6H4PPh2)(CO)(PPh3) 2] [M=Ru (1), Os (2)], which contain a four-membered cyclometallated ring. A single-crystal X-ray diffraction study of 2 shows the geometry about osmium to be distorted octahedral with the phosphorus atoms in a meridional arrangement. Both complexes react with CO, which displaces one of the triphenylphosphine ligands, the product from 2 being [OsCl(o-C6H4PPh2)(CO)2(PPh 3)]. In the case of 1, there is an accompanying migratory insertion of coordinated CO into the Ru-C bond to give the five-membered cyclic acyl complex [RuCl(o-C(O)C6H4PPh2)(CO)2(PPh 3)]. Complex 2 reacts with AgSbF6 in the presence of CO to give [Os(o-C6H4PPh2)(CO)2(PPh 3)2]SbF6.

AB - The reaction between [Hg(o-C6H4PPh2)2] and [MHCl(CO)(PPh3)3] gives the complexes [MCl(o-C6H4PPh2)(CO)(PPh3) 2] [M=Ru (1), Os (2)], which contain a four-membered cyclometallated ring. A single-crystal X-ray diffraction study of 2 shows the geometry about osmium to be distorted octahedral with the phosphorus atoms in a meridional arrangement. Both complexes react with CO, which displaces one of the triphenylphosphine ligands, the product from 2 being [OsCl(o-C6H4PPh2)(CO)2(PPh 3)]. In the case of 1, there is an accompanying migratory insertion of coordinated CO into the Ru-C bond to give the five-membered cyclic acyl complex [RuCl(o-C(O)C6H4PPh2)(CO)2(PPh 3)]. Complex 2 reacts with AgSbF6 in the presence of CO to give [Os(o-C6H4PPh2)(CO)2(PPh 3)2]SbF6.

KW - CO insertion

KW - Cyclometallation

KW - Osmium

KW - Ruthenium

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U2 - 10.1016/S0022-328X(00)00086-3

DO - 10.1016/S0022-328X(00)00086-3

M3 - Article

SN - 0022-328X

VL - 601

SP - 299

EP - 304

JO - Journal of Organometallic Chemistry

JF - Journal of Organometallic Chemistry

IS - 2

ER -

Cyclometallated complexes of ruthenium and osmium containing the o-C₆H₄PPh₂ ligand

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