N,S- and N,O-Substituted Stannylenes: Preparation and X-ray Diffraction Studies

Autor:	F. Ekkehardt Hahn, Alexander V. Zabula, Florian Hupka, Tania Pape, Alexander Hepp
Rok vydání:	2009
Předmět:	Diffraction Organic Chemistry Solid-state chemistry.chemical_element Oxygen Inorganic Chemistry Crystallography chemistry Yield (chemistry) Intramolecular force Atom X-ray crystallography Physical and Theoretical Chemistry Tin
Zdroj:	Organometallics. 28:4221-4224
ISSN:	1520-6041 0276-7333
DOI:	10.1021/om900174q
Popis:	The reaction of 2 equiv of Sn[N(SiMe3)2]2 with 1,2-benzodithiol gave the unstable N,S-substituted bis-stannylene 1, which decomposes in solution to yield Sn[N(SiMe3)2]2 and the S-heterocyclic stannylene 2. An X-ray diffraction analysis with crystals of 1 revealed the presence of two three-coordinated tin atoms with an S,S,N donor set and strong intramolecular Sn−S interactions. The related reaction of 3 equiv of Sn[N(SiMe3)2]2 with 2 equiv of 1,2-benzodiol gave the tris-stannylene 3 with two different types of SnII atoms. An X-ray diffraction analysis with crystals of 3 shows the central tin(II) atom to be coordinated by four oxygen donors while two additional peripheral tin(II) atoms are three-coordinated by a mixed O,O,N donor set. The central O4Sn core in 3 is strongly pyramidalized. In contrast to bis-stannylene 1 tris-stannylene 3 is stable both in the solid state and in solution.
Databáze:	OpenAIRE
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