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Self‐Assembly of N‐Heterocyclic Derivatives of Divalent Germanium, Tin, and Lead
Author(s) -
Zabula Alexander V.,
Rogachev Andrey Yu.,
West Robert
Publication year - 2014
Publication title -
chemistry – a european journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.687
H-Index - 242
eISSN - 1521-3765
pISSN - 0947-6539
DOI - 10.1002/chem.201405062
Subject(s) - tin , divalent , germanium , chemistry , pyridine , moiety , crystallography , monomer , supramolecular chemistry , intermolecular force , nuclear magnetic resonance spectroscopy , crystal structure , stereochemistry , molecule , organic chemistry , polymer , silicon
A new class of exceptionally stable asymmetric N‐heterocyclic germylenes, stannylenes, and plumbylenes has been successfully isolated and characterized by single‐crystal X‐ray diffraction analysis and multinuclear NMR spectroscopy. Their stability results from tetrameric supramolecular aggregation through strong intermolecular N py →E II (E=Ge, Sn, Pb) interactions involving the nitrogen atom of a neighboring pyridine moiety. The electronic structures and stabilities of the prepared divalent derivatives of Ge, Sn, and Pb in monomeric and aggregated forms are discussed based on theoretical investigations.