page_title: 1,4,7-Trimethyl-1,4,7-triazacyclononane
hierarchical_section_title: 1,4,7-Trimethyl-1,4,7-triazacyclononane
caption_attribution_description: English: generic complex of Me3TACN
context_page_description: 1,4,7-Trimethyl-1,4,7-triazacyclononane is the heterocyclic compound with the formula (CH₂CH₂NCH₃)₃. This colorless liquid is the N-methylated derivative of triazacyclononane, 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.
context_section_description: 1,4,7-Trimethyl-1,4,7-triazacyclononane is the heterocyclic compound 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.
caption: Generic octahedral metal complex of Me3TACN.
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