without changing your settings we'll assume you are happy to receive all RSC cookies.
You can change your cookie settings by navigating to our Privacy and Cookies page and following the instructions. These instructions
are also obtainable from the privacy link at the bottom of any RSC page.
The first examples of carbonyl heterocubane-type clusters, [Fe4(μ3-Q)2(μ3-AsMe)2(CO)12] (2, Q = Se (a), Te (b)), which simultaneously contain elements of group 15 and 16, were obtained by thermolysis of [Fe3(μ3-Q)(μ3-AsMe)(CO)9] (1) in acetonitrile. The clusters2 possess a cubic Fe4Q2As2 core with alternating Fe and Q/As atoms. The coordination environment of the Fe atoms is close to octahedral, and those of Q or As atoms are tetrahedral, which determines the distorted cubic cluster core geometry. The second main products of thermolysis are the clusters [Fe6(μ3-Q)(μ4-Q)(μ4-AsMe)2(CO)12] (3a,b), whose core contains double the elemental composition of the initial cluster1. In the case of the Se-containing cluster two other minor products [Fe4(μ4-Se)(μ4-SeAsMe)(CO)12] (4) and [Fe3(μ3-AsMe)2(CO)9] (5) are formed. Based on the structures and properties of the products, a reaction route for the conversion of 1 into 2 is proposed, which includes the associative formation of the clusters3 as intermediates, unlike the dissociative pathways previously known for the transformations of similar clusters of the type [Fe3Q2(CO)9].
Fetching data from CrossRef. This may take some time to load.