Yttrium and samarium complexes with a linked 1,4,7-triazacyclononane-aryloxide ancillary ligand
作者:J. Cui、I. C. Santos、J. M. Carretas
DOI:10.1134/s0022476614050230
日期:2014.9
The reaction of yttrium trichloride with the stoichiometric amount of the potassium salt of the 1-(3,5-di-tert-butyl-2-hydroxybenzyl)-4,7-diisopropyl-1,4,7-triazacyclononane ligand ( (i) Pr-2-TACN-CH2C6H2 (t) Bu2OH) (TACN = 1,4,7-triazacyclononane) in DME affords in good yield complex [ (i) Pr-2-TACN-CH2C6H2 (t) Bu2O]YCl2 (1). This complex is characterized by elemental analysis and H-1 nuclear magnetic resonance; the solid state structure is determined by the single crystal X-ray diffraction analysis. In complex 1, the metal centre is six-coordinated by the aryloxide oxygen atom, the three nitrogen atoms of the TACN ligand, and two chlorine atoms. The X-ray structure of isomorphic samarium complex [ (i) Pr-2-TACN-CH2C6H2 (t) Bu2O]SmCl2 (2) is also determined.
Titanium <i>tert</i>-Butyl- and Trimethylsilyl-imido Complexes with Monopendant Arm Triazacyclononane Ligands
作者:Jonathan D. Gardner、David A. Robson、Leigh H. Rees、Philip Mountford