Yunqing Lin, Chu‐Chieh Lin, Jyh-Horung Chen
Oct 1, 1994
Citations
0
Influential Citations
11
Citations
Journal
Polyhedron
Abstract
Abstract The title compound di(1,3-propanediolato)(tetraphenylporphyrinato)phosphorus(V) chloride, [P(tpp)(OCH2CH2CH2OH)2]+ Cl−, has been synthesized and its molecular structure determined by X-ray analysis. The cation displays and octahedral coordination geometry for the phosphorus atom. The displacement of the phosphorus atom from the porphyrin mean plane is 0.016 A. The geometry around the phosphorus centre of the P(tpp)(OCH2CH2CH2OH)+2Cl− molecule has PO(1) = 1.638(4), PO(2) = 1.642(4) and PNp = 1.844(4) A. There is hydrogen bonding between the axial 1,3-propanediolate groups and the chloride counterion. NMR spectroscopy provides a complementary method for the investigation of the 1,3-propanediolate ligand. The 13C resonances (24°C) of this axial ligand were observed at 59.3 [POC*CCOH, with 2J(PC) = 15.1 Hz], 30.0 [POCC*COH, 3J(PC) = 16.1 Hz] and 57.0 ppm (POCCC*OH). 1H spectra show shielding effects arising from the porphyrin ring current.