PUMA publications for /tag/backbonding;tungsten%20backbonding;molybdenum%20bipyrazinehttps://puma.ub.uni-stuttgart.de/tag/backbonding;tungsten%20backbonding;molybdenum%20bipyrazinePUMA RSS feed for /tag/backbonding;tungsten%20backbonding;molybdenum%20bipyrazine2024-04-10T23:23:22+02:00Correlation between solvatochromism and back-bonding in four isomeric (a-diimine)M(CO)4 complexes (M = Cr, Mo, W)https://puma.ub.uni-stuttgart.de/bibtex/21b27f9eb73434bb5053eae2c37d2fece/huebleriachuebleriac2022-06-15T11:26:56+02:00backbonding backbonding;bipyrimidine backbonding;biyridazine backbonding;chromium backbonding;molybdenum backbonding;tungsten bipyrazine complex diimine metal solvatochromism <span data-person-type="author" class="authorEditorList "><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Sylvia Ernst" itemprop="url" href="/person/1d5756cbef44e72b341e4380ca7cba75f/author/0"><span itemprop="name">S. Ernst</span></a></span>, </span><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Yvonne Kurth" itemprop="url" href="/person/1d5756cbef44e72b341e4380ca7cba75f/author/1"><span itemprop="name">Y. Kurth</span></a></span>, </span> and <span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Wolfgang. Kaim" itemprop="url" href="/person/1d5756cbef44e72b341e4380ca7cba75f/author/2"><span itemprop="name">W. Kaim</span></a></span></span>. </span><span class="additional-entrytype-information"><span itemtype="http://schema.org/PublicationIssue" itemscope="itemscope" itemprop="isPartOf"><em><span itemprop="journal">Journal of Organometallic Chemistry</span>, </em> <em><span itemtype="http://schema.org/PublicationVolume" itemscope="itemscope" itemprop="isPartOf"><span itemprop="volumeNumber">302 </span></span>(<span itemprop="issueNumber">2</span>):
<span itemprop="pagination">211--215</span></em> </span>(<em><span>1986<meta content="1986" itemprop="datePublished"/></span></em>)</span>Wed Jun 15 11:26:56 CEST 2022Journal of Organometallic Chemistry2211--215Correlation between solvatochromism and back-bonding in four isomeric (\textgreek{a}-diimine)M(CO)4 complexes (M = Cr, Mo, W)3021986backbonding backbonding;bipyrimidine backbonding;biyridazine backbonding;chromium backbonding;molybdenum backbonding;tungsten bipyrazine complex diimine metal solvatochromism Long-wavelength charge transfer absorption energies of isomeric complexes (L)M(CO)4 (L = 3,3'-bipyridazine, 2,2'- and 4,4'-bipyrimidine, 2,2'-bipyrazine; M = Cr, Mo, W) were measured in various solvents and compared with those for corresponding 2,2'-bipyridine complexes. Linear correlations of energies of absorption max. with solvent parameters EMLCT* (MLCT = metal to ligand charge transfer) revealed that the solvent dependence \textgreek{Du}/\textgreek{D}EMLCT* within the L series increases with decreasing abs. charge transfer transition energy in a given solvent, i.e. with increasing back-donation into the ligand \textgreek{p}* orbital. Complexes of the most strongly back-bonding ligand, 4,4'-bipyrimidine, thus display by far the most pronounced solvent dependence, with \textgreek{Du}/\textgreek{D}EMLCT* 4100 cm-1 for the molybdenum system. [on SciFinder(R)]Correlation between solvatochromism and back-bonding in four isomeric (a-diimine)M(CO)4 complexes (M = Cr, Mo, W)https://puma.ub.uni-stuttgart.de/bibtex/21b27f9eb73434bb5053eae2c37d2fece/b_schwederskib_schwederski2019-07-15T13:41:23+02:00backbonding backbonding;bipyrimidine backbonding;biyridazine backbonding;chromium backbonding;molybdenum backbonding;tungsten bipyrazine complex diimine metal solvatochromism <span data-person-type="author" class="authorEditorList "><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Sylvia Ernst" itemprop="url" href="/person/1d5756cbef44e72b341e4380ca7cba75f/author/0"><span itemprop="name">S. Ernst</span></a></span>, </span><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Yvonne Kurth" itemprop="url" href="/person/1d5756cbef44e72b341e4380ca7cba75f/author/1"><span itemprop="name">Y. Kurth</span></a></span>, </span> and <span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Wolfgang. Kaim" itemprop="url" href="/person/1d5756cbef44e72b341e4380ca7cba75f/author/2"><span itemprop="name">W. Kaim</span></a></span></span>. </span><span class="additional-entrytype-information"><span itemtype="http://schema.org/PublicationIssue" itemscope="itemscope" itemprop="isPartOf"><em><span itemprop="journal">Journal of Organometallic Chemistry</span>, </em> <em><span itemtype="http://schema.org/PublicationVolume" itemscope="itemscope" itemprop="isPartOf"><span itemprop="volumeNumber">302 </span></span>(<span itemprop="issueNumber">2</span>):
<span itemprop="pagination">211--215</span></em> </span>(<em><span>1986<meta content="1986" itemprop="datePublished"/></span></em>)</span>Mon Jul 15 13:41:23 CEST 2019Journal of Organometallic Chemistry2211--215Correlation between solvatochromism and back-bonding in four isomeric (\textgreek{a}-diimine)M(CO)4 complexes (M = Cr, Mo, W)3021986backbonding backbonding;bipyrimidine backbonding;biyridazine backbonding;chromium backbonding;molybdenum backbonding;tungsten bipyrazine complex diimine metal solvatochromism Long-wavelength charge transfer absorption energies of isomeric complexes (L)M(CO)4 (L = 3,3'-bipyridazine, 2,2'- and 4,4'-bipyrimidine, 2,2'-bipyrazine; M = Cr, Mo, W) were measured in various solvents and compared with those for corresponding 2,2'-bipyridine complexes. Linear correlations of energies of absorption max. with solvent parameters EMLCT* (MLCT = metal to ligand charge transfer) revealed that the solvent dependence \textgreek{Du}/\textgreek{D}EMLCT* within the L series increases with decreasing abs. charge transfer transition energy in a given solvent, i.e. with increasing back-donation into the ligand \textgreek{p}* orbital. Complexes of the most strongly back-bonding ligand, 4,4'-bipyrimidine, thus display by far the most pronounced solvent dependence, with \textgreek{Du}/\textgreek{D}EMLCT* 4100 cm-1 for the molybdenum system. [on SciFinder(R)]