Synthesis and characterization of a new bis-alanyl-appended porphyrin and its mononuclear Cu(II), Ni(II) and Zn(II) complexes. Crystal structure of the Ni(II) complex
摘要:
A new multi-chelating ligand, cis-5,15-bis(o-[beta-alanylamido]phenyl)-2,8,12,18-tetraethyl-3,7,13,17-tetramethylporphyrin, cis-(ala)2DPE, has been synthesized. Treatment of cis-(ala)2DPE with methanol solutions of Ni(II), Cu(II) or Zn(II) leads to the formation of mononuclear metal complexes in which the metal has inserted into the porphyrin core. An X-ray structure determination was carried out for [cis-(ala)2DPE]Ni(II).CHCl3.CH3OH. Crystal data are as follows: monoclinic, P2(1)/n, a = 14.195(5), b = 12.175(6), c = 28.071(1) angstrom, beta = 98.97(3)-degrees, R = 0.085, R(w) = 0.089.