88667-89-4Relevant academic research and scientific papers
Picosecond Relaxation of Strongly Coupled Porphyrin Dimers
Bilsel, Osman,Rodriguez, Juan,Holten, Dewey
, p. 3508 - 3512 (1990)
Subpicosecond time-resolved absorption studies have been carried out on several lanthanide porphyrin complexes consisting of a Ce(IV) ion sandwiched between two strongly coupled cofacial porphyrin macrocycles.Following excitation, two relaxation processes
Metal Complexes with Tetrapyrrole Ligands, XXXI. Neutral and Anionoid Bisporphinates of Cerium and Praeseodymium
Buchler, Johann W.,Kapellmann, Heinz-Guenter,Knoff, Martina,Lay, Kiong-Lam,Pfeifer, Stefan
, p. 1339 - 1345 (2007/10/02)
The preparation of the lanthanoid bisporphinates, bis-cerium(IV) and bishydrogenpraseodymium(III) from Ce(acac)3 and Pr(acac)3 in boiling 1,2,4-trichlorobenzene is described.Ce(TTP)2 is a diamagnetic and rather inert CeIV derivative, PrH(TTP)2 is a paramagnetic PrIII complex and may be deprotonated to give the anion (-) which is characterized by conductivity measurements, electrophoresis, and isolation of its tetra(n-butyl)ammonium or tetraphenylarsonium salt.The compounds are identified by UV/VIS, IR, 1H NMR, and mass spectra.The data are consistent with a sandwich-type square antiprismatic array of the two porphinate disks about the CeIV or PrIII ion as found earlier in the bis-phthalocyaninates U(Pc)2 or NdH(Pc)2. - Keywords: - Rare Earth Porphinates, Cerium(IV) Bisporphinate, Praseodymium(III) Bisporphinates
