PUMA publications for /tag/complex;polymnhttps://puma.ub.uni-stuttgart.de/tag/complex;polymnPUMA RSS feed for /tag/complex;polymn2024-03-28T23:51:14+01:00Ruthenium-triazene complexes as latent catalysts for UV-induced ROMPhttps://puma.ub.uni-stuttgart.de/bibtex/26f537615479a34e54e6be3d9fe678bda/huebleriachuebleriac2022-06-15T11:26:56+02:00carbene carbene;ruthenium catalyst complex complex;mol complex;polymn crystal metathesis opening photocatalyst photochem prepn ring ruthenium structure triazene <span data-person-type="author" class="authorEditorList "><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Dongren Wang" itemprop="url" href="/person/11b4b008cb80b6da302fac44caec3edfa/author/0"><span itemprop="name">D. Wang</span></a></span>, </span><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Joerg Unold" itemprop="url" href="/person/11b4b008cb80b6da302fac44caec3edfa/author/1"><span itemprop="name">J. Unold</span></a></span>, </span><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Martina Bubrin" itemprop="url" href="/person/11b4b008cb80b6da302fac44caec3edfa/author/2"><span itemprop="name">M. Bubrin</span></a></span>, </span><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Iris Elser" itemprop="url" href="/person/11b4b008cb80b6da302fac44caec3edfa/author/3"><span itemprop="name">I. Elser</span></a></span>, </span><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Wolfgang Frey" itemprop="url" href="/person/11b4b008cb80b6da302fac44caec3edfa/author/4"><span itemprop="name">W. Frey</span></a></span>, </span><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Wolfgang Kaim" itemprop="url" href="/person/11b4b008cb80b6da302fac44caec3edfa/author/5"><span itemprop="name">W. Kaim</span></a></span>, </span><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Guangjuan Xu" itemprop="url" href="/person/11b4b008cb80b6da302fac44caec3edfa/author/6"><span itemprop="name">G. Xu</span></a></span>, </span> and <span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Michael R. Buchmeiser" itemprop="url" href="/person/11b4b008cb80b6da302fac44caec3edfa/author/7"><span itemprop="name">M. Buchmeiser</span></a></span></span>. </span><span class="additional-entrytype-information"><span itemtype="http://schema.org/PublicationIssue" itemscope="itemscope" itemprop="isPartOf"><em><span itemprop="journal">European Journal of Inorganic Chemistry</span>, </em> <em><span itemtype="http://schema.org/PublicationVolume" itemscope="itemscope" itemprop="isPartOf"><span itemprop="volumeNumber">2013 </span></span>(<span itemprop="issueNumber">31</span>):
<span itemprop="pagination">5462--5468</span></em> </span>(<em><span>2013<meta content="2013" itemprop="datePublished"/></span></em>)</span>Wed Jun 15 11:26:56 CEST 2022European Journal of Inorganic Chemistry315462--5468Ruthenium-triazene complexes as latent catalysts for UV-induced ROMP20132013carbene carbene;ruthenium catalyst complex complex;mol complex;polymn crystal metathesis opening photocatalyst photochem prepn ring ruthenium structure triazene Three novel ruthenium(II) complexes, Grubbs' catalyst analogs, bearing triazene group, [RuX2(IMesH2)N,N-diethyl-N'-(2-benzylidene)triazene] (IMesH2 = 1,3-dimesitylimidazolin-2-ylidene; 2-4; X = Cl, CF3CO2, C6F5CO2) are prepd. and tested as photo-induced ring-opening metathetic polymn. of cycloalkenes. Single-crystal x-ray structure anal. of compds. 2-4 revealed that the triazene ligand exists in the trans form and that the aryl-connected nitrogen atom of the triazene binds to the ruthenium atom to form a five-membered chelate ring. Compds. 2-4 were applied to the UV-induced ring-opening metathesis polymn. (ROMP) of cis-cyclooctene (5) and dicyclopentadiene (6). Whereas all three precatalysts show pronounced thermal latency in the presence of 5 or 6, only compd. 2 displays significant photo-ROMP activity. The photoreactivity of precatalysts 2-4, which decreases with increasing electron-withdrawing character and with decreasing pKa of the X groups, is discussed and correlated with the x-ray data of 2-4, with low-temp. 1H NMR measurements as well as with cyclovoltammetric measurements. [on SciFinder(R)]Ruthenium-triazene complexes as latent catalysts for UV-induced ROMPhttps://puma.ub.uni-stuttgart.de/bibtex/26f537615479a34e54e6be3d9fe678bda/b_schwederskib_schwederski2019-07-15T13:41:23+02:00carbene carbene;ruthenium catalyst complex complex;mol complex;polymn crystal metathesis opening photocatalyst photochem prepn ring ruthenium structure triazene <span data-person-type="author" class="authorEditorList "><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Dongren Wang" itemprop="url" href="/person/11b4b008cb80b6da302fac44caec3edfa/author/0"><span itemprop="name">D. Wang</span></a></span>, </span><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Joerg Unold" itemprop="url" href="/person/11b4b008cb80b6da302fac44caec3edfa/author/1"><span itemprop="name">J. Unold</span></a></span>, </span><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Martina Bubrin" itemprop="url" href="/person/11b4b008cb80b6da302fac44caec3edfa/author/2"><span itemprop="name">M. Bubrin</span></a></span>, </span><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Iris Elser" itemprop="url" href="/person/11b4b008cb80b6da302fac44caec3edfa/author/3"><span itemprop="name">I. Elser</span></a></span>, </span><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Wolfgang Frey" itemprop="url" href="/person/11b4b008cb80b6da302fac44caec3edfa/author/4"><span itemprop="name">W. Frey</span></a></span>, </span><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Wolfgang Kaim" itemprop="url" href="/person/11b4b008cb80b6da302fac44caec3edfa/author/5"><span itemprop="name">W. Kaim</span></a></span>, </span><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Guangjuan Xu" itemprop="url" href="/person/11b4b008cb80b6da302fac44caec3edfa/author/6"><span itemprop="name">G. Xu</span></a></span>, </span> and <span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Michael R. Buchmeiser" itemprop="url" href="/person/11b4b008cb80b6da302fac44caec3edfa/author/7"><span itemprop="name">M. Buchmeiser</span></a></span></span>. </span><span class="additional-entrytype-information"><span itemtype="http://schema.org/PublicationIssue" itemscope="itemscope" itemprop="isPartOf"><em><span itemprop="journal">European Journal of Inorganic Chemistry</span>, </em> <em><span itemtype="http://schema.org/PublicationVolume" itemscope="itemscope" itemprop="isPartOf"><span itemprop="volumeNumber">2013 </span></span>(<span itemprop="issueNumber">31</span>):
<span itemprop="pagination">5462--5468</span></em> </span>(<em><span>2013<meta content="2013" itemprop="datePublished"/></span></em>)</span>Mon Jul 15 13:41:23 CEST 2019European Journal of Inorganic Chemistry315462--5468Ruthenium-triazene complexes as latent catalysts for UV-induced ROMP20132013carbene carbene;ruthenium catalyst complex complex;mol complex;polymn crystal metathesis opening photocatalyst photochem prepn ring ruthenium structure triazene Three novel ruthenium(II) complexes, Grubbs' catalyst analogs, bearing triazene group, [RuX2(IMesH2)N,N-diethyl-N'-(2-benzylidene)triazene] (IMesH2 = 1,3-dimesitylimidazolin-2-ylidene; 2-4; X = Cl, CF3CO2, C6F5CO2) are prepd. and tested as photo-induced ring-opening metathetic polymn. of cycloalkenes. Single-crystal x-ray structure anal. of compds. 2-4 revealed that the triazene ligand exists in the trans form and that the aryl-connected nitrogen atom of the triazene binds to the ruthenium atom to form a five-membered chelate ring. Compds. 2-4 were applied to the UV-induced ring-opening metathesis polymn. (ROMP) of cis-cyclooctene (5) and dicyclopentadiene (6). Whereas all three precatalysts show pronounced thermal latency in the presence of 5 or 6, only compd. 2 displays significant photo-ROMP activity. The photoreactivity of precatalysts 2-4, which decreases with increasing electron-withdrawing character and with decreasing pKa of the X groups, is discussed and correlated with the x-ray data of 2-4, with low-temp. 1H NMR measurements as well as with cyclovoltammetric measurements. [on SciFinder(R)]