122982-44-9Relevant academic research and scientific papers
A simplified, high-yield synthesis, and crystal structure of >
Brady, Fergal J.,Cardin, Christine J.,Cardin, David J.,Convery, Maire A.,Devereus, Michael M.,Lawless, Gerard A.
, p. 199 - 203 (1991)
The species iPr3-2,4,6)2>3> has been obtained in a simple, essentially quantitative, synthesis from SnCl2 and ArLi in diethyl ether at low temperature.The crystal structure analysis confirms the trimeric nature of the molecular units but reveals some unusual features.The crystal contains the unusual feature of an asymmetric unit that consists of three units of 3> in P21/c; the molecular unit is a scalene triangle, showing high consistency between the three molecules, in contrast to analogous trimeric species of silicon or germanium.The Sn-Sn bonds are lengthened (average value 2.942 Angstroem) owing to steric crowding.
SMALL RINGS WITH AND WITHOUT TIN-TIN BONDS
Schaefer, Annemarie,Weidenbruch, Manfred
, p. 13 - 16 (2007/10/02)
Thermolysis of hexakis(2,4,6-triisopropylphenyl)cyclotristannane 1 generates tetrakis(2,4,6-triisopropylphenyl)distannene 3 which can be trapped by various reagents.Addition of phenylacetylene to 3 yields a 1,2-distannacyclobutene derivative.Reaction of 3 with tellurium and selenium leads to tellura- and selenadistanniranes, 7,9, with an excess of these chalcogens the 1,3-dichalcogenadistannetanes, 8, 10, are formed.With elemental sulfur the 1,3-dithiadistannetane 12 along with the 1,2-dithiadistannetane 13 is formed.Thiadistannirane 11, which is not accessible by this route, is, however, smoothly obtained by reaction of 3 with methylthiirane.
