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Title
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Supramolecular architecture constructed from the hemidirected lead(II) complex with N'-(4-hydroxybenzylidene)isonicotinohydrazide
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Type
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JournalPaper
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Keywords
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Lead(II) Tetrel bonding Coordination polymer X-ray crystallography Hirshfeld surface analysis Topology
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Abstract
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In this work we have directed our attention to the N'-(4-hydroxybenzylidene)isonicotinohydrazide (HL) as a linker for the production of a Pb(II) extended structure. As a result, discrete homoleptic coordination compound [PbL2] with two deprotonated ligands L was isolated. All the covalent PbN/O bonds are collected on a half of hemisphere of the globe of the coordination sphere yielding a large gap in the coordination sphere of Pb(II). This enables a close approach of the amide nitrogen atom from an adjacent molecule with the formation of a tetrel bond of about 3.0 Å, yielding 1D polymeric chains. These chains are interlinked via intermolecular OH⋯N hydrogen bonds and CH⋯π interactions, yielding a 3D structure. Considering OH⋯N intermolecular hydrogen bonds, molecules of [PbL2] form a single helical structural unit of a hexagonal shape. These motifs are mutualy interpenetrated and the overall 3D network of [PbL2] belongs to a ThSi2 network. The Pb⋯N tetrel bonding interaction was stiduied in details using DFT.
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Researchers
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Damir A Safin (Not In First Six Researchers), Antonio Frontera (Not In First Six Researchers), Ennio Zangrando, (Fifth Researcher), Arunava Gupta (Fourth Researcher), Fengrui Qu (Third Researcher), Ghodrat Mahmoudi (Second Researcher), Farhad Akbari Afkhami (First Researcher)
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