6533b827fe1ef96bd1286ecd
RESEARCH PRODUCT
Strukturen von [Me4Sb]2[MeSbI4]MeSbI2, und [Me4Sb]I. Darstellung von Me3Sb · MeSbI2 und farbwechsel bei Me4Sb2 · Me2SbBr
Ulrich BehrensHans Joachim BreunigD. Bryan SowerbyMartin DrägerKlaus H. EbertSabahittin GülecMichael J. Begleysubject
StereochemistryChemistryOrganic Chemistrychemistry.chemical_elementCrystal structureBiochemistrySquare pyramidal molecular geometryAdductIonInorganic ChemistryCrystallographyTetragonal crystal systemAntimonyMaterials ChemistryMoleculePhysical and Theoretical ChemistryWurtzite crystal structuredescription
Abstract The crystal structures of the complex [Me 4 Sb] 2 [MeSbI 4 ] ( 1 ) and its precursors MeSbI 2 ( 2 ) and [Me 4 Sb]I ( 3 ) are reported. In 1 there are tetrahedral cations and square pyramidal anions with Sb-I distances of 290–320 pm. The structure of 2 contains MeSbI 2 molecules. They associate via iodine bridges to form linear chains with alternating short and long Sb-I distances. The coordination around antimony is distorted tetragonal pyramidal. The tetrahedral coordination of the ions in 3 results in the formation of a wurtzite type structure with antimony-iodine distances of 406 and 435 pm. The novel adducts Me 3 Sb·Me 2 SbI 2 ( 4 ) and Me 2 SbSbMe 2 ·Me 2 SbBr ( 5 ) are formed by reaction of the components. They decompose easily with formation of antimony(V) compounds. Crystals of 5 are yellow but become reversibly black on cooling.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 1992-04-01 | Journal of Organometallic Chemistry |