Gezielte synthesen von zweifach μ3-verbrückten dreikernigen eisenclustern Fe3(CO)9(μ3-S)(μ3-X) (X = PR,AsR, SO) aus [Fe3(CO)9(μ3-S-t-C4H9)]? |
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| Authors: | Andreas Winter Laszlo Zsolnai Gottfried Huttner |
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| Institution: | Lehrstuhl für Synthetische Anorganische Chemie, Fakultät für Chemie, Universität Konstanz, Postfach 5560, D-7750 Konstanz B.R.D. |
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| Abstract: | The cluster anion Fe3(CO)9(μ3-S-t-C4H9)]?, which is easily obtained by deprotonation from the cluster compound Fe3(CO)9(μ2-H)(μ3-S-t-C4H9), reacts with XCl2 by elimination of t-C4H9Cl and Cl? to give the clusters Fe3(CO)9(μ3-S)(μ3-X) (X = PR: I, X = AsR: II, X = SO: III), in which one edge of the iron triangle is opened. The μ3-PR-bridged clusters I can also be obtained by reactions of SCl2 with the anions Fe3(CO)9(μ3-PR)]2?, prepared from Fe3(CO)9(μ2-H)2(μ3-PR) by deprotonation. The geometry of I and II is exemplified by X-ray structure analyses. Experimental evidence for a reaction pathway, proposed for the high yield syntheses of I, is discussed. |
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