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<h1 id="firstHeading" class="firstHeading mw-first-heading"><span class="mw-page-title-main">Halbsandwichkomplexe</span></h1>
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<div id="mw-content-text" class="mw-body-content mw-content-ltr" lang="de" dir="ltr"><div class="mw-content-ltr mw-parser-output" lang="de" dir="ltr"><p>Als <b>Halbsandwichkomplexe</b> versteht man im weiteren Sinn jene metallorganischen Verbindungen mit einem cyclischen <a href="Haptizit%C3%A4t" title="Haptizität">Polyhapto</a>-<a href="Ligand" title="Ligand">Liganden</a>. Oftmals sind es <a href="Cyclopentadienyl" class="mw-redirect" title="Cyclopentadienyl">Cyclopentadienyl</a>-Systeme, die über <a href="%CE%A0-Bindung" title="Π-Bindung">π-Bindungen</a> an ein zentrales Metallatom gebunden sind. Die Absättigung freier (Elektronen-)Valenzen erfolgt oft über <a href="Carbonylgruppe" title="Carbonylgruppe">Carbonylgruppen</a> (z. B. <a href="Tricarbonyl(%CE%B75-cyclopentadienyl)mangan" title="Tricarbonyl(η5-cyclopentadienyl)mangan">Tricarbonyl(η<sup>5</sup>-cyclopentadienyl)mangan</a>), <a href="Nitrosogruppe" class="mw-redirect" title="Nitrosogruppe">Nitrosogruppen</a> oder andere <a href="Heteroatome" class="mw-redirect" title="Heteroatome">Heteroatome</a> (z. B. <a href="Iod" title="Iod">Iod</a>). Aufgrund ihrer Form werden diese Verbindungen auch als <i>Klavierstuhl</i>-Komplexe bezeichnet.
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<div class="gallerytext"><a href="Tricarbonyl(%CE%B75-cyclopentadienyl)mangan" title="Tricarbonyl(η5-cyclopentadienyl)mangan">Tricarbonyl<br>(η<sup>5</sup>-cyclopentadienyl)mangan</a></div>
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<div class="gallerytext"><a href="(Methylcyclopentadienyl)mangantricarbonyl" title="(Methylcyclopentadienyl)mangantricarbonyl">Tricarbonyl<br>(η<sup>5</sup>-methylcyclopentadienyl)mangan</a></div>
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<div class="gallerytext">Dicarbonyl<br>(η<sup>5</sup>-cyclopentadienyl)iodoeisen(II)<sup id="cite_ref-cryst_1-0" class="reference"><a href="#cite_note-cryst-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup></div>
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<div class="mw-heading mw-heading2"><h2 id="Literatur">Literatur</h2></div>
<ul><li><a href="Christoph_Elschenbroich" title="Christoph Elschenbroich">Christoph Elschenbroich</a>: <i>Organometallchemie</i>, 6. Auflage, Wiesbaden 2008, ISBN 978-3-8351-0167-8, S. 444, 473.</li></ul>
<div class="mw-heading mw-heading2"><h2 id="Einzelnachweise">Einzelnachweise</h2></div>
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<li id="cite_note-cryst-1"><span class="mw-cite-backlink"><a href="#cite_ref-cryst_1-0">↑</a></span> <span class="reference-text">M. Zeller, E. Lazich, A. D. Hunter: <i>Dicarbonyl(η<sup>5</sup>-cyclopentadienyl)iodoiron(II)</i>, <i><a href="Acta_Cryst." class="mw-redirect" title="Acta Cryst.">Acta Cryst.</a></i>, Sect. E, <b>2003</b>, <i>59</i>, m914–m915, <a href="Digital_Object_Identifier" title="Digital Object Identifier">doi</a>:<span class="uri-handle" style="white-space:nowrap"><a rel="nofollow" class="external text" href="https://doi.org/10.1107/S1600536803019950">10.1107/S1600536803019950</a></span>.</span>
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<div class="mw-heading mw-heading2"><h2 id="Weblinks">Weblinks</h2></div>
<div class="sisterproject" style="margin:0.1em 0 0 0;"><div class="noresize noviewer" style="display:inline-block; line-height:10px; min-width:1.6em; text-align:center;" aria-hidden="true" role="presentation"><span class="mw-default-size" typeof="mw:File"><span title="Commons"></span></span></div><b><span class=""><a class="external text" href="https://commons.wikimedia.org/wiki/Category:Half_sandwich_compounds?uselang=de"><span lang="en">Commons</span>: Half sandwich compounds</a></span></b> – Sammlung von Bildern, Videos und Audiodateien</div></div><!--htdig_noindex--><div><div class="zim-footer">
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