Facile C−H Bond Activation: Synthesis of the N<sub>4</sub>C Donor Set Pentadentate Ligand 1,4-Bis(2-pyridylmethyl)-1,4-diazacyclononane (dmpdacn) and a Structural Study of Its Alkyl−Cobalt(III) Complex [Co(dmpdacn-<i>C</i>)(OH<sub>2</sub>)](ClO<sub>4</sub>)<sub>2</sub>·H<sub>2</sub>O and Its Hydroxylated Derivative [Co(dmpdacnOH-<i>O</i>)Cl](ClO<sub>4</sub>)<sub>2</sub>·C<sub>3</sub>H<sub>6</sub>O
作者:Xiangting Zhou、Anthony I. Day、Alison J. Edwards、Anthony C. Willis、W. Gregory Jackson
DOI:10.1021/ic040081q
日期:2005.1.1
(dmpdacn) ligand with a N(4)C donor set deprotonates at a CH(2) gamma to an amine under extraordinarily mild conditions (pH 7) and binds as a pentadentate ligand to Co(III) as the [Co(dmpdacn-C)(OH(2))](2+) complex. This complex was characterized by 1D and 2D NMR techniques, and a single-crystal X-ray structure is reported. In an alternative synthesis from Co(II), dmpdacn, and air, the same C-bonded complex