Bridging allyl ligands upon allene insertion into electron-deficient triosmium-hydride clusters [Os3(CO)9(μ3-NSC7H3R)(μ-H)] (R = H, Me)

Hossain, Md. Iqbal; Ghosh, Shishir; Hogarth, Graeme; Kabir, Shariff E.

doi:10.1016/j.jorganchem.2011.04.024

Cited by 11 publications

(2 citation statements)

References 46 publications

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“…The topographic analysis of electron density within the structure of the Quantum Theory of Atoms in Molecules (QTAIM) has progressed into an effective technique for studying chemical bonding. 7,8 . Studies on light-atom systems (transition metal 1-3 periodic table) made it possible to establish important connections between the charged particle charge's structural features, bonding styles, and Laplacian 9,10 .…”

Section: Introductionmentioning

confidence: 99%

QTAIM analysis for Metal - Metal and Metal- Non-metal Bonds in Tri-Osmium cluster

Shatha Raheem Helal Alhimidi,

Manal A. Mohammed Al-Jabery,

Nadia Ezzat Alkurbasy

et al. 2023

J. K. Chem. Sci.

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Electron density of the interaction of the compound's chemical bonding has been computed using topological analysis. The findings suggest that Os-Os, Os-N, and Os-H bonds have experienced bond critical points (BCP) with corresponding bonds paths (BP). The presence of N-C bridging atoms is significantly impacted by electron density of Os2-Os3 bond distribution therefore no critical point found and bond path. So, due to their positive electron density (b), negative laplacian 2(b), and positive the total energy density H(b) values, the Os-NC, Os-H, and Os-CO bonds all have transit closed-shell topological properties.

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Section: Introductionmentioning

confidence: 99%

QTAIM analysis for Metal - Metal and Metal- Non-metal Bonds in Tri-Osmium cluster

Shatha Raheem Helal Alhimidi,

Manal A. Mohammed Al-Jabery,

Nadia Ezzat Alkurbasy

et al. 2023

J. K. Chem. Sci.

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“…Electron-deficient benzoheterocyclic triosmium clusters has been of special interest in the area of recent organometallic chemistry [1].The structures and reactivity of electron-deficient compound and their product are very sensitive on the nature of the substituent group of the heterocyclic ring [2][3][4][5]. Chemistry of electron-deficient triosmium clusters has been widely studied in recent years because of their high reactive comparative to their electron precise counterparts [2,6,7].…”

Section: Introductionmentioning

confidence: 99%

QTAIM View of Os–Os Bonding in Triosmium Cluster [Os3(CO)9(µ-ɳ2-C7H3(2-CH3)NS)(µ-CH2)CH3]

et al. 2020

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The topological features of the Triosmium cluster [Os3(CO)9(µ-ɳ 2 -C7H3(2-CH3)NS)(µ-CH2)CH3], containing carbonyl and 2methylbenzothiazol ide ligands, has been examined using density functional theory (DFT) and QTAIM-based "Quantum Theory Atoms in Molecules". The topological parameters of the electron density in the cluster have been calculated. The QTAIM analysis of the topological features demonstrated that the core part Os3C1 in the cluster is significantly absence a bond critical point and its bond path between Os1-Os3. Whereas, the analysis Os1-Os2 and Os2-Os3 interactions revealed the occurrence of bond paths and bond critical points between these atoms. A multicentre 4c-5e interaction for the Os3C1 core has been proposed. The topological parameters calculation show that the interactions in the bridging 2-methylbenzothiazolide Ligand are a typical for shared shell with the existence of some double-bond character.

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Reaction of electron-deficient 6-methoxyquinolinate-substituted cluster [Os3(CO)9{μ3-η1,κ1-C9H5N(6-OMe)}(μ-H)] with PPh3: Thermally induced ligand isomerization, decarbonylation and orthometallation

Begum

Chowdhury

Ghosh

et al. 2018

Inorganica Chimica Acta

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The reaction of the electron-deficient 6-methoxyquinolinate-substituted triosmium cluster [Os3(CO)9{μ3-η 1 ,κ 1-C9H5N(6-OMe)}(μ-H)] (1) with PPh3 proceeds readily at room temperature to afford the electron-precise adduct [Os3(CO)9(PPh3){μ-η 1 ,κ 1-C9H5N(6-OMe)}(μ-H)] (2), in which the PPh3 ligand is bound to the osmium that serves as the coordination site for the hydride and the metallated-carbon atom of the benzoheterocycle. This reaction also leads to a change in the hapticity of the 6-methoxyquinolinate ligand from μ3-η 1 ,κ 1 to μ-η 1 ,κ 1 as confirmed by X-ray crystallography. Thermolysis of 2 in boiling toluene furnishes five new triosmium clusters (3-7) as a result of ligand isomerization, decarbonylation and orthometallation of the ancillary PPh3 ligand. Clusters 3 and 4 are isomers of 2 and the location of the metal-bound hydride and PPh3 with respect to 6methoxyquinolinate moiety is the only difference between these isomers. Control experiments show that 5 is a decarbonylation product of 4 which converts in to 6 as a result of further decarbonylation with concomitant orthometallation of one of the phenyl rings of the coordinated PPh3 ligand, whilst 7 is formed from 6 through replacement of an equatorial 2 carbonyl of the nitrogen-bound osmium by PPh3 ligand. All the new clusters have been characterized by a combination of analytical and spectroscopic methods as well as by X-ray crystallography in the case of 2, 3, 6 and 7.

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Bridging allyl ligands upon allene insertion into electron-deficient triosmium-hydride clusters [Os3(CO)9(μ3-NSC7H3R)(μ-H)] (R = H, Me)

Cited by 11 publications

References 46 publications

QTAIM analysis for Metal - Metal and Metal- Non-metal Bonds in Tri-Osmium cluster

QTAIM analysis for Metal - Metal and Metal- Non-metal Bonds in Tri-Osmium cluster

QTAIM View of Os–Os Bonding in Triosmium Cluster [Os3(CO)9(µ-ɳ2-C7H3(2-CH3)NS)(µ-CH2)CH3]

Reaction of electron-deficient 6-methoxyquinolinate-substituted cluster [Os3(CO)9{μ3-η1,κ1-C9H5N(6-OMe)}(μ-H)] with PPh3: Thermally induced ligand isomerization, decarbonylation and orthometallation

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