Department of Chemistry and Chemical Biology, Rutgers, the State University of New Jersey, 610 Taylor Road, Piscataway, NJ 08854-8087, USA.
Dalton Trans. 2010 Aug 7;39(29):6794-800. doi: 10.1039/c001812k. Epub 2010 Jun 21.
Lanthanide chalcogenolates react with either TeO(2) in pyridine or py-SO(3) in THF to give oxychalcogenido clusters. The sulfido derivatives (THF)(8)Ln(8)S(2)O(2)(SePh)(16) (Ln = Ce, Nd) are isostructural with previously reported oxoselenido compounds, and must be prepared at low temperatures to avoid the introduction of Se into the sulfide position. Analogous telluride derivatives for the early lanthanides were not obtained, but reactions of in situ prepared Ln(TePh)(3) with elemental Te and TeO(2) gave a complicated heterocluster product, with tetrametallic polytelluride [(py)(7)Ln(4)(mu(4)-Te)(mu(2)-Te(2))(2)(mu-eta(2)-eta(2)-Te(2)Te(Ph)Te(2))(TePh)] co-crystallizing with the oxotellurido compound [(py)(5)Ln(3)(mu(3)-O)(mu(2)-Te(2))(3)(TePh)] (Ln = Ho, Er). An analysis of the thermal decomposition of these compounds did not identify the oxo-containing products, with the sulfide compounds decomposing to give only Ln(3)Se(4) and the telluride compounds forming crystalline LnTe and Te metal.
镧系元素的硫属元素化合物与 TeO(2)在吡啶或 py-SO(3)在 THF 中反应，生成氧硫属元素簇。 硫化物衍生物 (THF)(8)Ln(8)S(2)O(2)(SePh)(16)（Ln = Ce，Nd）与之前报道的氧化硒化物化合物具有相同的结构，必须在低温下制备以避免硒进入硫化物位置。 对于早期镧系元素的类似碲化物衍生物没有得到，但通过原位制备的 Ln(TePh)(3)与元素 Te 和 TeO(2)的反应得到了一种复杂的杂核簇产物，其中包含四金属多碲化物 [(py)(7)Ln(4)(mu(4)-Te)(mu(2)-Te(2))(2)(mu-eta(2)-eta(2)-Te(2)Te(Ph)Te(2))(TePh)]与氧化碲化物化合物 [(py)(5)Ln(3)(mu(3)-O)(mu(2)-Te(2))(3)(TePh)]（Ln = Ho，Er）共结晶。 对这些化合物的热分解分析没有鉴定出含氧化合物，硫化物化合物分解仅得到 Ln(3)Se(4)，而碲化物化合物形成结晶 LnTe 和 Te 金属。
