On the Question of Mixed-Valent States in Ligand-Bridged Dinuclear Organoplatinum Compounds [RkPt(μ-L)PtRk]n,k= 2 or 4†

We report selective formation of heterobimetallic PtII/CuI complexes that demonstrate how facile bond activation processes can be achieved by altering reactivity of common organoplatinum compounds through their interaction with another metal center. The interaction of the Cu center with Pt center and with a Pt-bound alkyl group increases the stability of PtMe2 towards undesired rollover cyclometalation. The presence of the CuI center also enables facile transmetalation from electron-deficient tetraarylborate [B(ArF)4]- anion and mild C-H bond cleavage of a terminal alkyne, which was not observed in the absence of an electrophilic Cu center. The DFT study indicates that the role of Cu center acts as a binding site for alkyne substrate, while activating its terminal C-H bond.

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Organoplatinum compounds VII

Journal of Organometallic Chemistry ◽

10.1016/s0022-328x(98)00481-1 ◽

1998 ◽

Vol 559 (1-2) ◽

pp. 191-196 ◽

Cited By ~ 12

Author(s):

H Donath ◽

E.V Avtomonov ◽

I Sarraje ◽

K.-H von Dahlen ◽

M El-Essawi ◽

...

Keyword(s):

Organoplatinum Compounds

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ChemInform Abstract: Comparison of Metal-Hydrogen, -Oxygen, -Nitrogen and -Carbon Bond Strengths and Evaluation of Functional Group Additivity Principles for Organoruthenium and Organoplatinum Compounds.

ChemInform ◽

10.1002/chin.198904098 ◽

1989 ◽

Vol 20 (4) ◽

Author(s):

H. E. BRYNDZA ◽

P. J. DOMAILLE ◽

W. TAM ◽

L. K. FONG ◽

R. A. PACIELLO ◽

...

Keyword(s):

Functional Group ◽

Group Additivity ◽

Carbon Bond ◽

Bond Strengths ◽

Organoplatinum Compounds

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Organoplatinum compounds

Journal of Organometallic Chemistry ◽

10.1016/s0022-328x(00)93416-8 ◽

1977 ◽

Vol 131 (2) ◽

pp. 317-320 ◽

Cited By ~ 6

Author(s):

Boris Neruda ◽

Eberhard Glozbach ◽

Jörg Lorberth

Keyword(s):

Organoplatinum Compounds

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Organoplatinum compounds

Journal of Organometallic Chemistry ◽

10.1016/0022-328x(88)83130-9 ◽

1988 ◽

Vol 352 (3) ◽

pp. 415-420 ◽

Cited By ~ 7

Author(s):

W. Massa ◽

G. Baum ◽

B.-S. Seo ◽

J. Lorberth

Keyword(s):

Organoplatinum Compounds

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Organoplatinum compounds: VI. Trimethylplatinum thiomethylate and trimethylplatinum iodide. The crystal structures of [(CH3)3PtS(CH3)]4 and [(CH3)3PtI]4·0.5CH3I

Journal of Organometallic Chemistry ◽

10.1016/s0022-328x(98)00414-8 ◽

1998 ◽

Vol 559 (1-2) ◽

pp. 203-207 ◽

Cited By ~ 16

Author(s):

K.H Ebert ◽

W Massa ◽

H Donath ◽

J Lorberth ◽

B.-S Seo ◽

...

Keyword(s):

Crystal Structures ◽

Organoplatinum Compounds

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Metal-Metal Cooperative Bond Activation by Heterobimetallic Alkyl, Aryl, and Acetylide PtII/CuI Complexes

10.26434/chemrxiv.11742687.v1 ◽

2020 ◽

Author(s):

Shubham Deolka ◽

Orestes Rivada Wheelaghan ◽

Sandra Aristizábal ◽

Robert Fayzullin ◽

Shrinwantu Pal ◽

...

Keyword(s):

Alkyl Group ◽

Bond Activation ◽

Bond Cleavage ◽

Terminal Alkyne ◽

Alkyl Aryl ◽

Metal Metal ◽

The Stability ◽

Selective Formation ◽

Organoplatinum Compounds

We report selective formation of heterobimetallic PtII/CuI complexes that demonstrate how facile bond activation processes can be achieved by altering reactivity of common organoplatinum compounds through their interaction with another metal center. The interaction of the Cu center with Pt center and with a Pt-bound alkyl group increases the stability of PtMe2 towards undesired rollover cyclometalation. The presence of the CuI center also enables facile transmetalation from electron-deficient tetraarylborate [B(ArF)4]- anion and mild C-H bond cleavage of a terminal alkyne, which was not observed in the absence of an electrophilic Cu center. The DFT study indicates that the role of Cu center acts as a binding site for alkyne substrate, while activating its terminal C-H bond.

Download Full-text