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<title>UTas ePrints - Organopalladium-Functionalized Dendrimers: Insertion of Palladium(0) into Peripheral Carbon-Iodine Bonds of Carbosilane Dendrimers Derived from Polyols. Crystal Structure of Si{(CH2)3O2CC6H4I-4}4</title>
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<meta content="Hoare, J.L." name="eprints.creators_name" />
<meta content="Lorenz, K." name="eprints.creators_name" />
<meta content="Hovestad, N.J." name="eprints.creators_name" />
<meta content="Smeets, W.J.J." name="eprints.creators_name" />
<meta content="Spek, A.L." name="eprints.creators_name" />
<meta content="Canty, A.J." name="eprints.creators_name" />
<meta content="Frey, H." name="eprints.creators_name" />
<meta content="van Koten, G." name="eprints.creators_name" />
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<meta content="Allan.Canty@utas.edu.au" name="eprints.creators_id" />
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<meta content="2008-01-10 22:30:00" name="eprints.datestamp" />
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<meta content="Organopalladium-Functionalized Dendrimers: Insertion
of Palladium(0) into Peripheral Carbon-Iodine Bonds of
Carbosilane Dendrimers Derived from Polyols. Crystal
Structure of Si{(CH2)3O2CC6H4I-4}4" name="eprints.title" />
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<meta content="A carbosilane dendrimer with 12 peripheral iodoarene groups, Si{(CH2)3{Si(CH2)3O2C(C6H4I-4)}3}4 (G1-ArI, 5), and the corresponding G0 model compound, Si{(CH2)3O2CC6H4I-4}4 (G0-ArI, 4) have been prepared from polyol precursors. These compounds react with Pd(dba)2/tmeda (dba = dibenzylideneacetone, tmeda = N,N,N',N'-tetramethylethylenediamine) to yield
periphery-palladated complexes, Si{(CH2)3O2C(C6H4-4)PdI(tmeda)}4 (G0-ArPdI(tmeda), 6) and
Si{(CH2)3{Si(CH2)3O2C(C6H4-4)PdI(tmeda)}3}4 (G1-ArPdI(tmeda), 7). Dendrimer 7 represents the first example of an exclusively sigma-bonded completely periphery-palladated dendrimer. Reactions of the model palladium(II) complexes PdI(EtO2C(C6H4)-4)(tmeda) (2) and
PdI(EtO2C(C6H4)-4)(bpy) (3) (bpy = 2,2'-bipyridyl) with the transmetalation reagents LiMe and SnMe4 were not successful, while no reaction occurred with the related reagent Sn(C~N)Me3 [C~N = 8-(dimethylamino)-1-naphthyl]. The molecular structure of G0-ArI (5) has been determined by X-ray crystallography and has C2v symmetry in the solid state." name="eprints.abstract" />
<meta content="1997" name="eprints.date" />
<meta content="published" name="eprints.date_type" />
<meta content="Organometallics" name="eprints.publication" />
<meta content="16" name="eprints.volume" />
<meta content="4167-4173" name="eprints.pagerange" />
<meta content="10.1021/om970343e" name="eprints.id_number" />
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<meta content="† University of Tasmania.
‡ Freiburger Materialforschungszentrum.
§ Debye Institute, Utrecht University.
| Bijvoet Centre for Biololecular Research, Utrecht University.
X Abstract published in Advance ACS Abstracts, August 15, 1997.
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" name="eprints.referencetext" />
<meta content="Hoare, J.L. and Lorenz, K. and Hovestad, N.J. and Smeets, W.J.J. and Spek, A.L. and Canty, A.J. and Frey, H. and van Koten, G. (1997) Organopalladium-Functionalized Dendrimers: Insertion of Palladium(0) into Peripheral Carbon-Iodine Bonds of Carbosilane Dendrimers Derived from Polyols. Crystal Structure of Si{(CH2)3O2CC6H4I-4}4. Organometallics, 16 . pp. 4167-4173. ISSN 0276-7333" name="eprints.citation" />
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of Palladium(0) into Peripheral Carbon-Iodine Bonds of
Carbosilane Dendrimers Derived from Polyols. Crystal
Structure of Si{(CH2)3O2CC6H4I-4}4" name="DC.title" />
<meta content="Hoare, J.L." name="DC.creator" />
<meta content="Lorenz, K." name="DC.creator" />
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<meta content="A carbosilane dendrimer with 12 peripheral iodoarene groups, Si{(CH2)3{Si(CH2)3O2C(C6H4I-4)}3}4 (G1-ArI, 5), and the corresponding G0 model compound, Si{(CH2)3O2CC6H4I-4}4 (G0-ArI, 4) have been prepared from polyol precursors. These compounds react with Pd(dba)2/tmeda (dba = dibenzylideneacetone, tmeda = N,N,N',N'-tetramethylethylenediamine) to yield
periphery-palladated complexes, Si{(CH2)3O2C(C6H4-4)PdI(tmeda)}4 (G0-ArPdI(tmeda), 6) and
Si{(CH2)3{Si(CH2)3O2C(C6H4-4)PdI(tmeda)}3}4 (G1-ArPdI(tmeda), 7). Dendrimer 7 represents the first example of an exclusively sigma-bonded completely periphery-palladated dendrimer. Reactions of the model palladium(II) complexes PdI(EtO2C(C6H4)-4)(tmeda) (2) and
PdI(EtO2C(C6H4)-4)(bpy) (3) (bpy = 2,2'-bipyridyl) with the transmetalation reagents LiMe and SnMe4 were not successful, while no reaction occurred with the related reagent Sn(C~N)Me3 [C~N = 8-(dimethylamino)-1-naphthyl]. The molecular structure of G0-ArI (5) has been determined by X-ray crystallography and has C2v symmetry in the solid state." name="DC.description" />
<meta content="1997" name="DC.date" />
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<h1 class="ep_tm_pagetitle">Organopalladium-Functionalized Dendrimers: Insertion of Palladium(0) into Peripheral Carbon-Iodine Bonds of Carbosilane Dendrimers Derived from Polyols. Crystal Structure of Si{(CH2)3O2CC6H4I-4}4</h1>
<p style="margin-bottom: 1em" class="not_ep_block"><span class="person_name">Hoare, J.L.</span> and <span class="person_name">Lorenz, K.</span> and <span class="person_name">Hovestad, N.J.</span> and <span class="person_name">Smeets, W.J.J.</span> and <span class="person_name">Spek, A.L.</span> and <span class="person_name">Canty, A.J.</span> and <span class="person_name">Frey, H.</span> and <span class="person_name">van Koten, G.</span> (1997) <xhtml:em>Organopalladium-Functionalized Dendrimers: Insertion of Palladium(0) into Peripheral Carbon-Iodine Bonds of Carbosilane Dendrimers Derived from Polyols. Crystal Structure of Si{(CH2)3O2CC6H4I-4}4.</xhtml:em> Organometallics, 16 . pp. 4167-4173. ISSN 0276-7333</p><p style="margin-bottom: 1em" class="not_ep_block"></p><table style="margin-bottom: 1em" class="not_ep_block"><tr><td valign="top" style="text-align:center"><a href="http://eprints.utas.edu.au/2820/1/Organomet1997_2C_4167.pdf"><img alt="[img]" src="http://eprints.utas.edu.au/style/images/fileicons/application_pdf.png" class="ep_doc_icon" border="0" /></a></td><td valign="top"><a href="http://eprints.utas.edu.au/2820/1/Organomet1997_2C_4167.pdf"><span class="ep_document_citation">PDF</span></a> - Full text restricted - Requires a PDF viewer<br />231Kb</td><td><form method="get" accept-charset="utf-8" action="http://eprints.utas.edu.au/cgi/request_doc"><input accept-charset="utf-8" value="4012" name="docid" type="hidden" /><div class=""><input value="Request a copy" name="_action_null" class="ep_form_action_button" onclick="return EPJS_button_pushed( '_action_null' )" type="submit" /> </div></form></td></tr></table><p style="margin-bottom: 1em" class="not_ep_block">Official URL: <a href="http://dx.doi.org/10.1021/om970343e">http://dx.doi.org/10.1021/om970343e</a></p><div class="not_ep_block"><h2>Abstract</h2><p style="padding-bottom: 16px; text-align: left; margin: 1em auto 0em auto">A carbosilane dendrimer with 12 peripheral iodoarene groups, Si{(CH2)3{Si(CH2)3O2C(C6H4I-4)}3}4 (G1-ArI, 5), and the corresponding G0 model compound, Si{(CH2)3O2CC6H4I-4}4 (G0-ArI, 4) have been prepared from polyol precursors. These compounds react with Pd(dba)2/tmeda (dba = dibenzylideneacetone, tmeda = N,N,N',N'-tetramethylethylenediamine) to yield
periphery-palladated complexes, Si{(CH2)3O2C(C6H4-4)PdI(tmeda)}4 (G0-ArPdI(tmeda), 6) and
Si{(CH2)3{Si(CH2)3O2C(C6H4-4)PdI(tmeda)}3}4 (G1-ArPdI(tmeda), 7). Dendrimer 7 represents the first example of an exclusively sigma-bonded completely periphery-palladated dendrimer. Reactions of the model palladium(II) complexes PdI(EtO2C(C6H4)-4)(tmeda) (2) and
PdI(EtO2C(C6H4)-4)(bpy) (3) (bpy = 2,2'-bipyridyl) with the transmetalation reagents LiMe and SnMe4 were not successful, while no reaction occurred with the related reagent Sn(C~N)Me3 [C~N = 8-(dimethylamino)-1-naphthyl]. The molecular structure of G0-ArI (5) has been determined by X-ray crystallography and has C2v symmetry in the solid state.</p></div><table style="margin-bottom: 1em" cellpadding="3" class="not_ep_block" border="0"><tr><th valign="top" class="ep_row">Item Type:</th><td valign="top" class="ep_row">Article</td></tr><tr><th valign="top" class="ep_row">Subjects:</th><td valign="top" class="ep_row"><a href="http://eprints.utas.edu.au/view/subjects/259901.html">250000 Chemical Sciences > 259900 Other Chemical Sciences > 259901 Organometallic Chemistry</a></td></tr><tr><th valign="top" class="ep_row">Collections:</th><td valign="top" class="ep_row">UNSPECIFIED</td></tr><tr><th valign="top" class="ep_row">ID Code:</th><td valign="top" class="ep_row">2820</td></tr><tr><th valign="top" class="ep_row">Deposited By:</th><td valign="top" class="ep_row"><span class="ep_name_citation"><span class="person_name">Prof Allan J Canty</span></span></td></tr><tr><th valign="top" class="ep_row">Deposited On:</th><td valign="top" class="ep_row">11 Jan 2008 09:30</td></tr><tr><th valign="top" class="ep_row">Last Modified:</th><td valign="top" class="ep_row">01 Feb 2008 14:53</td></tr><tr><th valign="top" class="ep_row">ePrint Statistics:</th><td valign="top" class="ep_row"><a target="ePrintStats" href="/es/index.php?action=show_detail_eprint;id=2820;">View statistics for this ePrint</a></td></tr></table><p align="right">Repository Staff Only: <a href="http://eprints.utas.edu.au/cgi/users/home?screen=EPrint::View&eprintid=2820">item control page</a></p>
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