Journal of the Chemical Society, Dalton Transactions p. 2615 - 2622 (1992)
Update date:2022-08-04
Topics:
Forrester, Alexander R.
Garden, Simon J.
Howie, R. Alan
Wardell, James L.
The structures of (3-hydroxypropyl)iododiphenyltin 3 and 2,7-diiodo-2,7-diphenyl-1,6-dioxa-2,7-distannacyclodecane 6 have been determined by single-crystal X-ray diffraction.Compound 6, obtained by controlled thermolysis of 3, has a tricyclic structure, with a central Sn2O2 ring arising from transannular, Sn-O a transoid arrangement with respect to the central Sn2O2 ring, i.e. there is a stepped geometry.The tin atoms have trigonal-bipyramidal geometries being bonded in equatorial sites to two carbons and one oxygen a 4.2:1 mixture of two isomers: the major one has the solid structure while the minor one has the terminal rings in an umbrella configuration, i.e. the terminal rings are cisoid with respect to the central Sn2O2 ring.Two sets of tin couplings to C(3) a chelate complex, with trigonal-bipyramidal tin: three equatorial C, with I
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