Heterobimetallic Metallaborane Chemistry:  Synthesis and Characterization of a “Lightly Stabilized” Molybdairidahexaborane, [{Cp*Ir}{(CO)3(THF)Mo}B4H8], and Its Direct Conversion to [{Cp*Ir}{(CO)3(L)Mo}B4H8] (L = CO, PPh3, NCPh, CNBu, NH3, PPh3CHC(O)OMe)

Alicia Beatty; Ramón Macías; Thomas P. Fehlner; Bruce Noll

doi:10.1021/om049308f

Heterobimetallic Metallaborane Chemistry: Synthesis and Characterization of a “Lightly Stabilized” Molybdairidahexaborane, [{CpIr}{(CO)3(THF)Mo}B4H8], and Its Direct Conversion to [{CpIr}{(CO)3(L)Mo}B4H8] (L = CO, PPh3, NCPh, CNBu, NH3, PPh3CHC(O)OMe)

Alicia Beatty, Ramón Macías, Thomas P. Fehlner, Bruce Noll

University of Missouri-St. Louis

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

Abstract

<div class="line" id="line-9"> The reaction of [Cp*IrB 4 H 10 ] (1) with [{η 6 -(C 6 H 4 )(CH 3 ) 2 }Mo(CO) 3 ] in tetrahydrofuran (THF) leads to [Cp*Ir(CO) 3 (THF)MoB 4 H 8 ] (2), which was characterized by NMR spectroscopy. Intermediate 2 subsequently decomposes to give the tetracarbonyl analogue [Cp*Ir(CO) 4 MoB 4 H 8 ] (3). In the presence of free CO, the same reaction constitutes a high-yield synthesis of 3. The treatment of 2 (formed in situ) with different Lewis bases led to the replacement of the THF ligand at the molybdenum center and generation of [Cp*Ir(CO) 3 (L)MoB 4 H 8 ] (L = PPh 3  (4), NCPh (5), CNBu (6), NH 3  (7)). Reaction of the benzonitrile derivative 5 with PPh 3 <img src="https://pubs.acs.org/entityImage/legacy/dbd.gif"/> CHCO 2 Me afforded the ylide compound [Cp*Ir(CO) 3 (PPh 3 <img src="https://pubs.acs.org/entityImage/legacy/dbd.gif"/> CHCO 2 Me)MoB 4 H 8 ] (8). All compounds have been spectroscopically characterized, and 3 and 5−7 have been structurally characterized in the solid state. This work demonstrates that, similarly to metal clusters, metallaboranes with labile metal ligands can serve as versatile synthons. </div>

Original language	American English
Journal	Organometallics
Volume	23
DOIs	https://doi.org/10.1021/om049308f
State	Published - Nov 3 2004

Disciplines

Chemistry

Access to Document

10.1021/om049308fLicense: Unspecified

Cite this

Beatty, A., Macías, R., Fehlner, T. P., & Noll, B. (2004). Heterobimetallic Metallaborane Chemistry: Synthesis and Characterization of a “Lightly Stabilized” Molybdairidahexaborane, [{Cp*Ir}{(CO)3(THF)Mo}B4H8], and Its Direct Conversion to [{Cp*Ir}{(CO)3(L)Mo}B4H8] (L = CO, PPh3, NCPh, CNBu, NH3, PPh3CHC(O)OMe). Organometallics, 23. https://doi.org/10.1021/om049308f

Heterobimetallic Metallaborane Chemistry: Synthesis and Characterization of a “Lightly Stabilized” Molybdairidahexaborane, [{Cp*Ir}{(CO)3(THF)Mo}B4H8], and Its Direct Conversion to [{Cp*Ir}{(CO)3(L)Mo}B4H8] (L = CO, PPh3, NCPh, CNBu, NH3, PPh3CHC(O)OMe). / Beatty, Alicia; Macías, Ramón; Fehlner, Thomas P. et al.
In: Organometallics, Vol. 23, 03.11.2004.

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

Beatty, A, Macías, R, Fehlner, TP & Noll, B 2004, 'Heterobimetallic Metallaborane Chemistry: Synthesis and Characterization of a “Lightly Stabilized” Molybdairidahexaborane, [{Cp*Ir}{(CO)3(THF)Mo}B4H8], and Its Direct Conversion to [{Cp*Ir}{(CO)3(L)Mo}B4H8] (L = CO, PPh3, NCPh, CNBu, NH3, PPh3CHC(O)OMe)', Organometallics, vol. 23. https://doi.org/10.1021/om049308f

@article{d0f143c424e345419621d9255b6d8557,

title = "Heterobimetallic Metallaborane Chemistry: Synthesis and Characterization of a “Lightly Stabilized” Molybdairidahexaborane, [{Cp*Ir}{(CO)3(THF)Mo}B4H8], and Its Direct Conversion to [{Cp*Ir}{(CO)3(L)Mo}B4H8] (L = CO, PPh3, NCPh, CNBu, NH3, PPh3CHC(O)OMe)",

abstract = " The reaction of [Cp*IrB 4 H 10 ] (1) with [{η 6 -(C 6 H 4 )(CH 3 ) 2 }Mo(CO) 3 ] in tetrahydrofuran (THF) leads to [Cp*Ir(CO) 3 (THF)MoB 4 H 8 ] (2), which was characterized by NMR spectroscopy. Intermediate 2 subsequently decomposes to give the tetracarbonyl analogue [Cp*Ir(CO) 4 MoB 4 H 8 ] (3). In the presence of free CO, the same reaction constitutes a high-yield synthesis of 3. The treatment of 2 (formed in situ) with different Lewis bases led to the replacement of the THF ligand at the molybdenum center and generation of [Cp*Ir(CO) 3 (L)MoB 4 H 8 ] (L = PPh 3  (4), NCPh (5), CNBu (6), NH 3  (7)). Reaction of the benzonitrile derivative 5 with PPh 3 CHCO 2 Me afforded the ylide compound [Cp*Ir(CO) 3 (PPh 3 CHCO 2 Me)MoB 4 H 8 ] (8). All compounds have been spectroscopically characterized, and 3 and 5−7 have been structurally characterized in the solid state. This work demonstrates that, similarly to metal clusters, metallaboranes with labile metal ligands can serve as versatile synthons. ",

author = "Alicia Beatty and Ram{\'o}n Mac{\'i}as and Fehlner, {Thomas P.} and Bruce Noll",

note = "The reaction of [Cp*IrB4H10] (1) with [{η6-(C6H4)(CH3)2}Mo(CO)3] in tetrahydrofuran (THF) leads to [Cp*Ir(CO)3(THF)MoB4H8] (2), which was characterized by NMR spectroscopy. Intermediate 2 subsequently decomposes to give the tetracarbonyl analogue [Cp*Ir(CO)4MoB4H8] (3). In the presence of free CO, the same reaction constitutes a high-yield synthesis of 3.",

year = "2004",

month = nov,

day = "3",

doi = "10.1021/om049308f",

language = "American English",

volume = "23",

journal = "Organometallics",

}

TY - JOUR

T1 - Heterobimetallic Metallaborane Chemistry: Synthesis and Characterization of a “Lightly Stabilized” Molybdairidahexaborane, [{Cp*Ir}{(CO)3(THF)Mo}B4H8], and Its Direct Conversion to [{Cp*Ir}{(CO)3(L)Mo}B4H8] (L = CO, PPh3, NCPh, CNBu, NH3, PPh3CHC(O)OMe)

AU - Beatty, Alicia

AU - Macías, Ramón

AU - Fehlner, Thomas P.

AU - Noll, Bruce

N1 - The reaction of [Cp*IrB4H10] (1) with [{η6-(C6H4)(CH3)2}Mo(CO)3] in tetrahydrofuran (THF) leads to [Cp*Ir(CO)3(THF)MoB4H8] (2), which was characterized by NMR spectroscopy. Intermediate 2 subsequently decomposes to give the tetracarbonyl analogue [Cp*Ir(CO)4MoB4H8] (3). In the presence of free CO, the same reaction constitutes a high-yield synthesis of 3.

PY - 2004/11/3

Y1 - 2004/11/3

N2 - The reaction of [Cp*IrB 4 H 10 ] (1) with [{η 6 -(C 6 H 4 )(CH 3 ) 2 }Mo(CO) 3 ] in tetrahydrofuran (THF) leads to [Cp*Ir(CO) 3 (THF)MoB 4 H 8 ] (2), which was characterized by NMR spectroscopy. Intermediate 2 subsequently decomposes to give the tetracarbonyl analogue [Cp*Ir(CO) 4 MoB 4 H 8 ] (3). In the presence of free CO, the same reaction constitutes a high-yield synthesis of 3. The treatment of 2 (formed in situ) with different Lewis bases led to the replacement of the THF ligand at the molybdenum center and generation of [Cp*Ir(CO) 3 (L)MoB 4 H 8 ] (L = PPh 3  (4), NCPh (5), CNBu (6), NH 3  (7)). Reaction of the benzonitrile derivative 5 with PPh 3 CHCO 2 Me afforded the ylide compound [Cp*Ir(CO) 3 (PPh 3 CHCO 2 Me)MoB 4 H 8 ] (8). All compounds have been spectroscopically characterized, and 3 and 5−7 have been structurally characterized in the solid state. This work demonstrates that, similarly to metal clusters, metallaboranes with labile metal ligands can serve as versatile synthons.

AB - The reaction of [Cp*IrB 4 H 10 ] (1) with [{η 6 -(C 6 H 4 )(CH 3 ) 2 }Mo(CO) 3 ] in tetrahydrofuran (THF) leads to [Cp*Ir(CO) 3 (THF)MoB 4 H 8 ] (2), which was characterized by NMR spectroscopy. Intermediate 2 subsequently decomposes to give the tetracarbonyl analogue [Cp*Ir(CO) 4 MoB 4 H 8 ] (3). In the presence of free CO, the same reaction constitutes a high-yield synthesis of 3. The treatment of 2 (formed in situ) with different Lewis bases led to the replacement of the THF ligand at the molybdenum center and generation of [Cp*Ir(CO) 3 (L)MoB 4 H 8 ] (L = PPh 3  (4), NCPh (5), CNBu (6), NH 3  (7)). Reaction of the benzonitrile derivative 5 with PPh 3 CHCO 2 Me afforded the ylide compound [Cp*Ir(CO) 3 (PPh 3 CHCO 2 Me)MoB 4 H 8 ] (8). All compounds have been spectroscopically characterized, and 3 and 5−7 have been structurally characterized in the solid state. This work demonstrates that, similarly to metal clusters, metallaboranes with labile metal ligands can serve as versatile synthons.

UR - https://pubs.acs.org/doi/abs/10.1021/om049308f

U2 - 10.1021/om049308f

DO - 10.1021/om049308f

M3 - Article

VL - 23

JO - Organometallics

JF - Organometallics

ER -

Heterobimetallic Metallaborane Chemistry: Synthesis and Characterization of a “Lightly Stabilized” Molybdairidahexaborane, [{Cp*Ir}{(CO)3(THF)Mo}B4H8], and Its Direct Conversion to [{Cp*Ir}{(CO)3(L)Mo}B4H8] (L = CO, PPh3, NCPh, CNBu, NH3, PPh3CHC(O)OMe)

Abstract

Disciplines

Access to Document

Other files and links

Cite this

Heterobimetallic Metallaborane Chemistry: Synthesis and Characterization of a “Lightly Stabilized” Molybdairidahexaborane, [{CpIr}{(CO)3(THF)Mo}B4H8], and Its Direct Conversion to [{CpIr}{(CO)3(L)Mo}B4H8] (L = CO, PPh3, NCPh, CNBu, NH3, PPh3CHC(O)OMe)