
TY  - JOUR
A1  - Arnold, DP 
A1  - Bartley, JP 
A1  - James, DA 
T1  - Self-Aggregation of a Synthetic Amphiphilic Porphyrin
JF  - Australian Journal of Chemistry
JO  - Aust. J. Chem.
Y1  - 1992
VL  - 45
IS  - 8
SP  - 1191
EP  - 1203
KW  - 
UR  - https://doi.org/10.1071/CH9921191 
N2  - The cationic amphiphile meso-tetrakis (1-octyloxycarbonylmethyl-4-pyridinio) porphyrin has been prepared by quaternization of tetra(4-pyridyl) porphyrin . Its self-aggregation into columnar face-to-face stacks is indicated by n.m.r. and electronic absorption spectra in chloroform and chloroform/methanol mixtures. In 10 mole % CD3OD/CDCl3 solution, concentration-dependent dimerization occurs, with an association constant Kd 5.81&#215;103 dm3 mol-1. In pure methanol, chemical shifts are concentration dependent, but do not fit a simple dimerization model. In water/methanol mixtures, aggregation occurs so that the hydrocarbon chains approach the porphyrin core, but the macrocycles do not stack in a face-to-face manner. 
ER  -

