67583-89-5Relevant academic research and scientific papers
Cobalt Porphyrin-Mediated Oxygen Transport in a Polymer Membrane: Effect of the Cobalt Porphyrin Structure on the Oxygen-Binding Reaction, Oxygen-Diffusion Constants, and Oxygen-Transport Efficiency
Nishide, Hiroyuki,Suzuki, Takayuki,Kawakami, Hiroyoshi,Tsuchida, Eishun
, p. 5084 - 5088 (1994)
New derivatives of (meso-α,α,α,α-tetrakis(o-pivalamidophenyl)porphinato)cobalt (CoPs) were characterized by oxygen-binding equilibrium and rate constants of the cobalt centered in the porphyrins.They depended on the structure of the porphyrin; for example, the rate constants of oxygen binding and dissociation (kon and koff) for α3β-CoP4P (Chart 1) were 3 and 20 times as large as those for α4-CoB4P, respectively.Oxygen transport through the polymer membranes containing CoPs as the fixed oxygen carriers was facilitated and was affected by the oxygen-binding character or the structure of CoPs.The logarithmically linear correlation of the oxygen-dissociation rate constant of CoPs (koff = (3-66)E3 s-1) with the diffusion constant of oxygen via CoPs fixed in the membranes (Dcc = (3-140)E-9 cm2 s-1) was given for those six CoP derivatives.
