@article {1067, title = {Preparation of [meso-tetraphenylchlorophinato]nickel(II) by stepwise deformylation of [meso-tetraphenyl-2,3-diformyl-secochlorinato]nickel(II): conformational consequences of breaking the structural integrity of nickel porphyrins}, journal = {Inorganica Chimica Acta}, volume = {358}, number = {10}, year = {2005}, note = {ISI Document Delivery No.: 941PBTimes Cited: 10Cited Reference Count: 66}, month = {Jun}, pages = {2943-2953}, type = {Article}, abstract = {The stepwise, Wilkinson{\textquoteright}s catalyst-induced decarbonylation of [meso-tetraphenyl-2,3-diformylsecochlorinato]Ni(II) (4) to produce the monoformylated pigment [meso-tetraphenyl-2-formylsecochlorinato] (5) and [meso-tetrapheiiylchlorophinato]Ni(II) (6) is described. Thus, we have shown how to degrade one pyrrolic unit of the starting material, [meso-tetraphetiylporphyrinato]Ni(II) (2) in three steps to an aldimine linkage. The conformational changes of the porphyrinic macrocycle during the course of this degradation, as determined by comparison of the X-ray crystal structures of the compounds, are discussed. A comparative study delineates the UV-Vis spectroscopical consequences. In addition, the chemical reactivity of [meso-tetraphenylchlorophinato]Ni(II) (6) suggests the existence of an azepine-derived pyrrole-modified porphyrins (11, 12). (c) 2004 Elsevier B.V. All rights reserved.}, keywords = {CHEMISTRY, CHIRALITY-MEMORY MOLECULE, CHLORIN, CHLOROPHIN, chlorophins, COMPLEXES, ELECTRONIC-SPECTRA, macrocycle, METHYLCOENZYME-M REDUCTASE, nickel(II) porphyrin conformations ruffling, porphyrins, secochlorins, SYSTEM, TUNICATE TRIDIDEMNUM-SOLIDUM, Wilkinson{\textquoteright}s catalyst}, isbn = {0020-1693}, url = {://000230225600013}, author = {Bruckner, C. and Hyland, M. A. and Sternberg, E. D. and Macalpine, J. K. and Rettig, S. J. and Patrick, B. O. and Dolphin, D.} }