Molecular structure of N-tosylimido-meso-tetraphenylporphyrinatozinc(II), Zn(N-NTs-tpp)

The crystal structure of N-tosylimido-meso-tetraphenylporphyrinatozinc (II) , Zn(N-NTs-tpp), was determined. The zinc is tetracoordinated with the nitr ogen atoms of only three pyrrole bases and with an extra nitrogen atom of t he nitrene fragment. The porphyrin ring is severely distorted, the pyrrole ring bonded to the NTs ligand making a large dihedral angle of 29.1 degrees with the plane containing the three pyrrole nitrogens bonded to the zinc ( i.e. the (3N) plane) and the other pyrroles making smaller angles of 13.8, 7.6 and 5.9 degrees. The zinc atom lies out of the (3N) plane by 0.39 Angst rom and the extra nitrogen N(4) by 1.54 Angstrom on the same side as the zi nc. (C) 2000 Elsevier Science Ltd All rights reserved.