Tin-chalcogen bonding

The main aim was to verify the changes in the tin-chalcogen bonding on passing from open to cyclic molecules, also in light of previous experience on some Group XIV... 

Table 2.1.6 Sn NMR parameters of compounds with tin-chalcogen bonds ...

The first imidotin-chalcogenide cluster containing a terminal tin-chalcogen bond to be reported was the tellurium complex 62 (Scheme 2.2.13), which was unexpectedly obtained from the reaction of... 

Element-element bonds, addition to G-G multiple bonds arsenic—selenium bonds, 10, 782 boron—boron bonds, 10, 727 boron—sulfur bonds, 10, 778 B-S and B-Ge bonds, 10, 758 chalcogen—chalcogen additions, 10, 752 germanium—germanium bonds, 10, 747 germanium-tin bonds, 10, 780 overview, 10, 725-787 phosphorus—phosphorus bonds, 10, 751 phosphorus—selenium bonds, 10, 782 phosphorus-sulfur bonds, 10, 781 Se-Si and Se-Ge bonds, 10, 779 silicon-germanium bonds, 10, 770 silicon-phosphorus bonds, 10, 780 silicon-silicon bonds, 10, 734 silicon-sulfur bonds, 10, 779 silicon-tin bonds, 10, 770 tin-boron bonds, 10, 767 tin-tin bonds, 10, 748... 

Similarly, stannanethione 166 and stannaneselone 168 kinetically stabilized by Tbt and Ditp groups have Sn chemical shifts of 531 and 440 ppm, respectively. Kuchta and Parkin have reported the synthesis of stable terminal chalcogenido complexes of tin 193 (Scheme 58), and the chemical shifts for the central tin atom appears at a much higher field, i.e. —303 ppm (193a, X=S) and —444 ppm (193b, X=Se). This clearly shows that the thermodynamically stabilized tin-chalcogen double bonds in 193 (X=S, Se) are electronically perturbed to a great extent. 

The single-bond compounds between Si, Ge, and Sn and chalcogens (S, Se, Te) are reactive and used as synthetic intermediates in the synthesis of organic compounds, organochalcogen compounds, organo-silicon, -germanium and -tin compounds, and transition metal-chalcogen complexes and clusters. 

Homonuclear carbonyl dimers, palladium complexes, 8, 206 Homonuclear element-element bonds, addition to C-C multiple bonds boron-boron bonds, 10, 727 chalcogen-chalcogen additions, 10, 752 germanium-germanium bonds, 10, 747 phosphorus-phosphorus bonds, 10, 751 silicon—silicon bonds, 10, 734 tin—tin bonds, 10, 748... 

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