4.6 Article

Fully Tin-Coated Coinage Metal Ions: A Pincer-Type Bis-stannylene Ligand for Exclusive Tetrahedral Complexation

Journal

CHEMISTRY-A EUROPEAN JOURNAL
Volume -, Issue -, Pages -

Publisher

WILEY-V C H VERLAG GMBH
DOI: 10.1002/chem.202203583

Keywords

coinage metals; luminescence; pincers; stannylene; tetrahedra

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This article describes the synthesis of a novel bis-stannylene pincer ligand and its complexation with coinage metals (Cu-I, Ag-I and Au-I). In the solid state, all coinage metal centers are in tetrahedral coordination environments and are exclusively coordinated by four neutral Sn-II donors. Sn-119 NMR provided information about the behavior in solution. All of the isolated compounds have photoluminescent properties, and these were investigated at low and elevated temperatures. Compared to the free bis-stannylene ligand, coordination to coinage metals led to an increase in the luminescence intensity. The new compounds were investigated in detail through all-electron relativistic density functional theory (DFT) calculations.
The synthesis of a novel bis-stannylene pincer ligand and its complexation with coinage metals (Cu-I, Ag-I and Au-I) are described. All coinage metal centres are in tetrahedral coordination environments in the solid state and are exclusively coordinated by four neutral Sn-II donors. Sn-119 NMR provided information about the behaviour in solution. All of the isolated compounds have photoluminescent properties, and these were investigated at low and elevated temperatures. Compared to the free bis-stannylene ligand, coordination to coinage metals led to an increase in the luminescence intensity. The new compounds were investigated in detail through all-electron relativistic density functional theory (DFT) calculations.

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