Novel Dinuclear Tin(II) and Lead(II) Compounds with 2‐Pyridyl Functionalized Silylamido Ligands

Treatment of R2SiCl2 (R = Me, Ph) with 2‐aminopyridine in the presence of NEt3 led to the formation of the bis(N‐2‐pyridylamino)silanes R2Si{NH(2‐Py)}2, which were isolated as pale yellow solids. Crystal structure analyses revealed that both compounds exhibit tetrahedrally coordinated silicon atoms...

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Bibliographic Details
Published in:Zeitschrift für anorganische und allgemeine Chemie (1950) 2017-08, Vol.643 (14), p.938-944
Main Authors: Wagner, Christoph, Merzweiler, Kurt
Format: Article
Language:English
Subjects:
Amides
Atomic structure
Chemical bonds
Crystal structure
Distortion
Hydrogen bonding
Lead
Silanes
Silicon
Silylamide
Solid state
Tin
X‐ray crystallography
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Summary:Treatment of R2SiCl2 (R = Me, Ph) with 2‐aminopyridine in the presence of NEt3 led to the formation of the bis(N‐2‐pyridylamino)silanes R2Si{NH(2‐Py)}2, which were isolated as pale yellow solids. Crystal structure analyses revealed that both compounds exhibit tetrahedrally coordinated silicon atoms which are linked to two 2‐pyridylamido moieties and two organyl groups (Me or Ph). As a result of intermolecular hydrogen bonding between the NH groups and the pyridyl N atoms the R2Si{NH(2‐Py)}2 molecules are catenated in the solid state. Treatment of R2Si{NH(2‐Py)}2 with nBuLi afforded the corresponding amides R2Si{NLi(2‐Py)}2, which were subsequently reacted with MCl2 (M = Sn, Pb) to give the dinuclear silylamides [{R2Si(N‐2‐Py)2M}2]. Both the tin and the lead derivatives exhibit closely related molecular structures, in which the tin (or lead) atoms are linked to two amido N atoms and a pyridyl N atom in a distorted trigonal bipyramidal coordination mode.
ISSN:0044-2313
1521-3749
DOI:10.1002/zaac.201700167