@article {3625, title = {Synthesis of meso-phenyl-4,6-dipyrrins, preparation of their Cu(II), Ni(II), and Zn(II) chelates, and structural characterization of bis[meso-phenyl-4,6-dipyrrinato]Ni(II)}, journal = {Canadian Journal of Chemistry-Revue Canadienne De Chimie}, volume = {74}, number = {11}, year = {1996}, note = {ISI Document Delivery No.: WC124Times Cited: 73Cited Reference Count: 58}, month = {Nov}, pages = {2182-2193}, type = {Article}, abstract = {{meso-Phenyldipyrromethanes can be oxidized by 2,6-dicyano-3,5-dichloro-para-benzoquinone (DDQ) to the corresponding meso-phenyldipyrrins. As expected, these novel, stable bipyrrolic pigments readily form metal chelates with copper(II), nickel(II), and zinc(II). Their W-VIS spectra are compared with a series of blown alkyl-substituted dipyrrin chelates and, based oil the W-VIS spectral analysis, the dihedral angle between the two ligands iri the bis[meso-phenyldipyrrinato]Ni(II) complex was calculated to be 42 degrees. The molecular structure of this complex was determined by X-ray crystallography, essentially confirming the calculation. Crystals of C30H22N4Ni are orthorhombic}, keywords = {CRYSTAL-STRUCTURE, DIPYRROMETHENES, LIGANDS, meso-phenyldipyrrinato transition metal chelates, meso-phenyldipyrrins, meso-phenyldipyrromethanes, MOLECULAR, PYRROLE PIGMENTS, STEREOCHEMISTRY, TRANSITION-METAL COMPLEXES, X-RAY CRYSTALLOGRAPHY}, isbn = {0008-4042}, url = {://A1996WC12400032}, author = {Bruckner, C. and Karunaratne, V. and Rettig, S. J. and Dolphin, D.} }