Synthesis and Crystal Structure of a Meso-Meso Directly Linked Bisporphyrin
نویسندگان
چکیده
منابع مشابه
A meso-meso directly linked octameric porphyrin square.
A meso-meso directly linked cyclic octameric porphyrin square was synthesized via stepwise Suzuki-Miyaura cross coupling reactions, and its ability to capture a guest molecule in the inside cavity has been confirmed.
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The cascade reaction of sterically hindered dipyrromethanes and formaldehyde furnished meso(10)-meso(10') linked corroles--a new type of porphyrinoid--compounds with interesting photophysical properties.
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The preparation of β-meso directly linked porphyrin-corrole hybrids was realized for the first time via an InCl3-catalyzed condensation reaction of 2-formyl-5,10,15,20-tetraphenylporphyrins with meso-substituted dipyrromethanes. Hybrid compounds have been characterized by 1H NMR, 13C NMR, 2D NMR, UV-vis absorption and fluorescence spectroscopy.
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The mol-ecular structure of the title compound, C7H10Br2O4, confirms the meso (2R,6S) configuration. In the crystal, mol-ecules are linked by pairs of O-H⋯O=C hydrogen bonds between their terminal carboxyl groups in an R 2 (2)(8) motif, forming extended chains that propagate parallel to the c axis. Adjacent chains are linked by C=O⋯Br halogen bonds.
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The porphyrin core of the title centrosymmetric compound, C44H26N8O8·2C6H5NO2, is approximately planar, the maximum deviation being 0.069 (3) Å. The planes of the benzene rings of the nitro-phenyl substituents are almost perpendicular to the porphyrin mean plane, making dihedral angles of 73.89 (9) and 89.24 (9)°. The two pyrrole ring H atoms are equally disordered over the four pyrrole ring N ...
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ژورنال
عنوان ژورنال: Zeitschrift für Naturforschung B
سال: 2011
ISSN: 1865-7117,0932-0776
DOI: 10.1515/znb-2011-0601