Supramolecular Frameworks Built up from Red-Phosphorescent trans-Re6 Cluster Building Blocks: One Pot Synthesis, Crystal Structures, and DFT Investigations. - Archive ouverte HAL Access content directly
Journal Articles Journal of Inorganic and General Chemistry / Zeitschrift für anorganische und allgemeine Chemie Year : 2015

Supramolecular Frameworks Built up from Red-Phosphorescent trans-Re6 Cluster Building Blocks: One Pot Synthesis, Crystal Structures, and DFT Investigations.

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1
Racha El Osta
  • Function : Author
Antoine Demont
  • Function : Author
Thi Thuong Nguyen
  • Function : Author
Konstantin A. Brylev
  • Function : Author
Youri V. Mironov
  • Function : Author
Nikolay G. Naumov
  • Function : Author
Noboru Kitamura
  • Function : Author

Abstract

The reaction of a K4[\Re6Si8\(OH)a6]·8H2O rhenium cluster salt with 4,4'-bipyridine (bpy) or 4-aminopyridine (apy) in an aq. soln. at mild temp. and pressure conditions lead to cluster functionalization and to the formation of two new compds. [\Re6Si8\(OH)a2(bpy)a4]·bpy·4H2O (1) and [\Re6Si8\(OH)a2(apy)a4]·2apy·2H2O (2). Their crystal structures are built up from trans-[\Re6Si8\(OH)a2(L)a4] neutral units and the cohesions of both supramol. frameworks are based on π-π stacking as well as hydrogen bonds, involving the cluster units trans-[\Re6Si8\(OH)a2(L)a4], interstitial L ligands and water mols. 1 and 2 present 2D and 3D cluster frameworks, resp. Both compds. show red-NIR luminescence in the solid states. DFT calcns. demonstrate that assocn. of face capped Re6 clusters with bpy and apy ligands enabled to form supramol. frameworks that retain luminescent properties of the cluster units.

Dates and versions

hal-01153429 , version 1 (19-05-2015)

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Racha El Osta, Antoine Demont, Nathalie Audebrand, Yann Molard, Thi Thuong Nguyen, et al.. Supramolecular Frameworks Built up from Red-Phosphorescent trans-Re6 Cluster Building Blocks: One Pot Synthesis, Crystal Structures, and DFT Investigations.. Journal of Inorganic and General Chemistry / Zeitschrift für anorganische und allgemeine Chemie, 2015, 641 (6), pp.1156-1163. ⟨10.1002/zaac.201500074⟩. ⟨hal-01153429⟩
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