Röntgenographische und spektroskopische untersuchungen an di-t-butylzinn—chalkogen-vierringverbindungen

Hexakis(2,4,6-triisopropylphenyl)cyclotristannoxane - a Molecular Diorganotin Oxide with Kinetically Inert Sn-O Bonds

“…It is worth mentioning that the 119 Sn MAS NMR chemical shift measured for cyclo-(t-Bu 2 SnS) 2 (d 126.1) differs from that previously reported by Harris and Sebald (d 119.4, 117.3) [30] which is tentatively attributed to the presence of different polymorphs. Indeed, monoclinic (a-form) and triclinic (b-form) modifications have been reported for (t-Bu 2 SnS) 2 [31]. However, both 119 Sn MAS chemical shifts are consistent with the respective value of cyclo-(t-Bu 2 SnS) 2 in CDCl 3 solution (d 124.1) [27].…”

“…Solvents were dried according to standard procedures and freshly distilled prior to use. (2,4,6-i-Pr±C 6 H 2 ) 2 SnBr 2 , [37] cyclo-(t-Bu 2 SnO) 3 , [4] and cyclo-(t-Bu 2 SnS) 2 [31] were prepared according to literature procedures. t-Bu 2 SiCl 2 was commercially obtained (Fluka) and used as supplied.…”

Intramolecularly coordinated organotin(IV) sulphides and their reactivity to iodine

“…The diorganotin compounds were shown to form cyclic trimers (Me 2 SnS) 3 and (Ph 2 SnS) 3 [1] or a polymer (iPr 2 SnS) n [2]. Dimeric structures with central Sn 2 S 2 core can be stabilized by bulky ligands (tBu 2 SnS) 2 [3] or [(2,4,6-iPr 3 C 6 H 2 ) 2 SnS] 2 [4]. Tokitoh et al reported on utilization of sterically crowded aryls 2,4, and 2,4,6-tris[bis(trimethylsilyl)methyl]phenyl (Tb) for formation of unusual (Tb)(Tip)SnE 4 rings (E = S, Se) [5].…”

“…The diorganotin compounds were shown to form cyclic trimers (Me 2 SnS) 3 and (Ph 2 SnS) 3 [1] or a polymer (iPr 2 SnS) n [2]. Dimeric structures with central Sn 2 S 2 core can be stabilized by bulky ligands (tBu 2 SnS) 2 [3] or [(2,4,6-iPr 3 C 6 H 2 ) 2 SnS] 2 [4].…”

Notizen: Eine neue bicyclische Zinn-Selen-Verbindung. Synthese und Kristallstruktur von [{Cp(CO)2Fe}3ClSn3Se4] / A New Bicyclic Tin Selenium Compound. Synthesis and Crystal Structure of [{Cp(CO)2Fe}3ClSn3Se4]

“…Sn(l) und Sn (2) [5]. Ebenso liegen die S n-F e-A bstände mit 248, 8(2)-249,5(2) Weitere Einzelheiten zu den K ristallstrukturuntersuchungen können beim Fachinform ationszentrum Karlsruhe GmbH, D-76344 Eggenstein-Leopoldshafen, unter Angabe der Hinterlegungsnummer CSD 57362, der Autoren und des Zeitschriftenzitats ange fordert werden.…”