New diamino-diheterophenol ligands coordinate iron(III) to make structural and functional models of protocatechuate 3,4-dioxygenase

作者：Farrell Joshua R^*; Niconchuk Jonathan A; Renehan Peter R; Higham Christine S; Yoon Eric; Andrews Mark V; Shaw Janet L; Cetin Anil; Engle James; Ziegler Christopher J

来源：Dalton Transactions, 2014, 43(18): 6610-6613.

DOI：10.1039/c3dt53431f

Three diamino, dihetero-phenol ligands were synthesized by sequential Mannich condensations. These ligands were combined with FeCl3 to produce three five-coordinate Fe(III) complexes that are structural models for the enzyme 3,4-PCD. The three Fe(III) complexes were characterized by elemental analysis, single crystal X-ray diffraction studies, UV-vis spectroscopy, and cyclic voltammetry. Combining the Fe(III) complexes with 3,5-di-t-butylcatechol and O-2 resulted in oxidative cleavage similar to the function of 3,4-PCD.

• 出版日期2014