About: 1,4,7-Trimethyl-1,4,7-triazacyclononane     Goto   Sponge   NotDistinct   Permalink

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1,4,7-Trimethyl-1,4,7-triazacyclononane is the aza-crown ether with the formula (CH2CH2NCH3)3. This colorless liquid is the N-methylated derivative of triazacyclononane (TACN), a face-capping tridentate ligand that is popular in coordination chemistry. Although TACN is known for forming 2:1 "sandwich" complexes with many metal ions, corresponding 2:1 complexes of Me3TACN are only known for Ag+, Na+, and K+. This effect is mainly due to the greater bulk of Me3TACN, which requires ions with a larger ionic radius to accommodate two ligands.

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  • 1,4,7-Trimethyl-1,4,7-triazacyclononane (en)
  • 1,4,7-Triméthyl-1,4,7-triazacyclononane (fr)
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  • 1,4,7-Trimethyl-1,4,7-triazacyclononane is the aza-crown ether with the formula (CH2CH2NCH3)3. This colorless liquid is the N-methylated derivative of triazacyclononane (TACN), a face-capping tridentate ligand that is popular in coordination chemistry. Although TACN is known for forming 2:1 "sandwich" complexes with many metal ions, corresponding 2:1 complexes of Me3TACN are only known for Ag+, Na+, and K+. This effect is mainly due to the greater bulk of Me3TACN, which requires ions with a larger ionic radius to accommodate two ligands. (en)
  • Le 1,4,7-triméthyl-1,4,7-triazacyclononane, parfois abrégé Me3TACN, est un éther azacouronne de formule chimique (CH2CH2NCH3)3. Il s'agit d'un liquide transparent de couleur brune issu formellement de la N-méthylation du 1,4,7-triazacyclononane (C2H4NH)3 (TACN). C'est un ligand tridenté couramment utilisé en chimie de coordination. Divers dérivés apparentés ont été préparés avec différents substituants sur les atomes d'azote. * Structure générique d'un complexe octaédrique de Me3TACN. (fr)
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  • http://commons.wikimedia.org/wiki/Special:FilePath/Me3TACN.png
  • http://commons.wikimedia.org/wiki/Special:FilePath/(Me3TACN)ML3.png
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  • Me3TACN.png (en)
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  • 1,4,7-Trimethyl-1,4,7-triazacyclononane is the aza-crown ether with the formula (CH2CH2NCH3)3. This colorless liquid is the N-methylated derivative of triazacyclononane (TACN), a face-capping tridentate ligand that is popular in coordination chemistry. Although TACN is known for forming 2:1 "sandwich" complexes with many metal ions, corresponding 2:1 complexes of Me3TACN are only known for Ag+, Na+, and K+. This effect is mainly due to the greater bulk of Me3TACN, which requires ions with a larger ionic radius to accommodate two ligands. Several related derivatives have been prepared with diverse substituents on nitrogen. (en)
  • Le 1,4,7-triméthyl-1,4,7-triazacyclononane, parfois abrégé Me3TACN, est un éther azacouronne de formule chimique (CH2CH2NCH3)3. Il s'agit d'un liquide transparent de couleur brune issu formellement de la N-méthylation du 1,4,7-triazacyclononane (C2H4NH)3 (TACN). C'est un ligand tridenté couramment utilisé en chimie de coordination. Bien que le triazacyclononane soit connu pour former des complexes sandwich 2:1 avec de nombreux ions métalliques, les complexes 2:1 correspondants du triméthyltriazacyclononane ne sont connus qu'avec les cations d'argent Ag+, de sodium Na+ et de potassium K+. Cette particularité est principalement due à l'encombrement stérique plus important du triméthyltriazacyclononane, qui a besoin d'ions de plus grande taille pour accueillir deux ligands. Divers dérivés apparentés ont été préparés avec différents substituants sur les atomes d'azote. * Structure générique d'un complexe octaédrique de Me3TACN. (fr)
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  • 1,4,7-Trimethyl-1,4,7-triazonane (en)
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