Reaction of [Pt(κ2-C,N-ppy)(dmso)Cl], 1 (Hppy = 2-phenylpyridine), with Na[H2B(mb)2] (Hmb = 2-mercapto-benzimidazole) smoothly afforded the complex {[(κ3-S,B,S-HB(mb)2]Pt(κ2-C,N-ppy)H}, 2, featuring a strong reverse-dative Pt → B σ interaction in the solid state. When dissolved in thf (or acetone) solution, 2 undergoes a reversible Pt–H bond activation, establishing an equilibrium between the hexacoordinated 2 and the tetracoordinate complex {[(κ2-S,S-H2B(mb)2]Pt(κ2-C,N-ppy)}, 3, as ascertained by multinuclear NMR. Hydrolysis of the B–N bond in 2/3 resulted ultimately in the formation of a dimeric half-lantern platinum(II,II) complex [{Pt(κ2-C,N-ppy)(μ2-κ2-N,S-mb)}2], 4. The SC-XRD structures of 2 and 4 are reported.
A Borane Platinum Complex Undergoing Reversible Hydride Migration in Solution / Neshat, A.; Shahsavari, Hr.; Mastrorilli, P.; Todisco, S.; Haghighi, Mg.; Notash, B.. - In: INORGANIC CHEMISTRY. - ISSN 0020-1669. - STAMPA. - 57:3(2018), pp. 1398-1407. [10.1021/acs.inorgchem.7b02807]
A Borane Platinum Complex Undergoing Reversible Hydride Migration in Solution
Shahsavari, HR.
;Mastrorilli, P.
;Todisco, S.;
2018-01-01
Abstract
Reaction of [Pt(κ2-C,N-ppy)(dmso)Cl], 1 (Hppy = 2-phenylpyridine), with Na[H2B(mb)2] (Hmb = 2-mercapto-benzimidazole) smoothly afforded the complex {[(κ3-S,B,S-HB(mb)2]Pt(κ2-C,N-ppy)H}, 2, featuring a strong reverse-dative Pt → B σ interaction in the solid state. When dissolved in thf (or acetone) solution, 2 undergoes a reversible Pt–H bond activation, establishing an equilibrium between the hexacoordinated 2 and the tetracoordinate complex {[(κ2-S,S-H2B(mb)2]Pt(κ2-C,N-ppy)}, 3, as ascertained by multinuclear NMR. Hydrolysis of the B–N bond in 2/3 resulted ultimately in the formation of a dimeric half-lantern platinum(II,II) complex [{Pt(κ2-C,N-ppy)(μ2-κ2-N,S-mb)}2], 4. The SC-XRD structures of 2 and 4 are reported.| File | Dimensione | Formato | |
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