0000000000542340

AUTHOR

Axel Blecher

showing 2 related works from this author

Molekül- und kristallstruktur von hexamethylcyclo-tristannaselenan [(CH3)2SnSe]3

1978

Hexamethylcyclotristannaselenane [(CH3)2SnSe]3 forms tetragonal crystals, space groups P41212, with a  986.5(2), c  1769.7(4) pm, Z  4. The complete X-ray structural analysis (two independent determinations) shows the six-membered ring to have a twist-boat conformation similar to [(CH3)2SnS]3. The SnSe2C2 tetrahedra are only slightly distorted, the mean bond distances being SnSe 253.1 (251.7⋯254.0(4)) pm, Sn C 2.13 (2.09⋯2.17(3)) pm. Conformational details are discussed.

Inorganic ChemistryTetragonal crystal systemCrystallographyChemistryOrganic ChemistryMaterials ChemistryTetrahedronSpace groupPhysical and Theoretical ChemistryRing (chemistry)BiochemistryJournal of Organometallic Chemistry
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Fourier transform nmr investigations of organotin compounds

1980

Abstract NMR spectra have been obtained for fiteen title compounds, mainly with R = Me. Tin chemical shifts were found to lie within the expected ranges, but to vary little with R or, apparently, with change in ring size. While the magnitute of 1 (SnSe) was as predicted, the of 1 (SnTe) was more than twice as large as that previously observed for (Me 3 Sn) 2 Te. In compounds Me 6 Sn( 3 X 3 , 2 J(SnMSn) varied systematically with variations in x, but within relatively narrow limits (195-250 Hz); a much more drastic variation was observed for Me 6 Sn 3 X 2 , possibly due to bond angle changes at Sn and X.

Chemical shiftOrganic ChemistryAnalytical chemistrychemistry.chemical_elementBiochemistryInorganic ChemistryRing sizeNMR spectra databasesymbols.namesakeMolecular geometryFourier transformchemistryMaterials ChemistrysymbolsPhysical and Theoretical ChemistryTinJournal of Organometallic Chemistry
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