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| Content Provider | Springer Nature Link |
|---|---|
| Author | Ilyin, Igor Yu. Konchenko, Sergey N. Pushkarevsky, Nikolay A. |
| Copyright Year | 2014 |
| Abstract | Reactions of cluster salts K$_{2}$[Fe$_{3}$Q(CO)$_{9}$] (Q = Se, Te) with AsI$_{3}$ in CH$_{2}$Cl$_{2}$ proceed differently depending on the chalcogen atom and the reaction conditions. For Te, the product of addition of μ$_{3}$-AsI vertex to the initial cluster, [Fe$_{3}$(CO)$_{9}$(μ$_{3}$-Te)(μ$_{3}$-AsI)] (2b) is the main component of the solution. By action of traces of water, such as wet silica gel, 2b is converted to a dimeric cluster [{Fe$_{3}$(CO)$_{9}$(μ$_{3}$-Te)}$_{2}$(μ$_{6}$,κ$^{3}$:κ$^{3}$-As$_{2}$)] (5), whose molecules contain two identical square-pyramidal cores joined by diarsane moiety. For Se, the product 2a, analogous to 2b, was only found on the basis of mass-spectra, as main component of the reaction solution, but could not be separated because of its instability and similarity of its properties to those of [Fe$_{3}$(CO)$_{9}$Se$_{2}$], a by-product. Two other products, [Fe$_{3}$(CO)$_{9}$(μ$_{3}$-Se)(µ$_{4}$,κ$^{3}$:κ$^{2}$-AsSe)Fe$_{2}$(CO)$_{6}$(μ-I)] (3) and K[{Fe$_{3}$(CO)$_{9}$(μ$_{3}$-Se)(μ$_{4}$-As)}$_{2}$Fe(CO)$_{3}$I] (4) were only found as little amount of crystals. The molecule of 3 consists of the pyramidal {Fe$_{3}$SeAs} core linked by the As–Se bond to a {Fe$_{2}$SeI} fragment. The cluster anion in 4 consists of two {Fe$_{3}$SeAs} cores joined via the {Fe(CO)$_{3}$I} unit. The products 3 and 4 presumably originate from the dissociation of the initial cluster core and their formation correlates with lower stability of Se-containing cluster 2a as compared to 2b. |
| Starting Page | 257 |
| Ending Page | 268 |
| Page Count | 12 |
| File Format | |
| ISSN | 10407278 |
| Journal | Journal of Cluster Science |
| Volume Number | 26 |
| Issue Number | 1 |
| e-ISSN | 15728862 |
| Language | English |
| Publisher | Springer US |
| Publisher Date | 2014-08-24 |
| Publisher Place | Boston |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Carbonyl clusters Iron Selenium Tellurium Arsenic Reactivity Catalysis Inorganic Chemistry Physical Chemistry |
| Content Type | Text |
| Resource Type | Article |
| Subject | Chemistry Biochemistry Condensed Matter Physics Materials Science |
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