Light absorption study of aggregating porphyrin in aqueous solutions

被引:20
作者
Micali, N [1 ]
Scolaro, LM
Romeo, A
Mallamace, F
机构
[1] CNR, Ist Tecn Spettroscopiche, I-98166 Messina, Italy
[2] Univ Messina, Dipartimento Chim Inorgan Chim Analit & Chim Fis, I-98166 Messina, Italy
[3] CNR, ICTPN, I-98166 Messina, Italy
[4] MIT, Dept Nucl Engn, Cambridge, MA 02139 USA
[5] Univ Messina, Dipartimento Fis, I-98166 Messina, Italy
关键词
D O I
10.1103/PhysRevE.57.5766
中图分类号
O35 [流体力学]; O53 [等离子体物理学];
学科分类号
070204 ; 080103 ; 080704 ;
摘要
UV-visible absorption measurements have been applied to the study of the aggregation kinetics of the porphyrin t-H2Pagg in aqueous solution. The temporal evolution of the spectra can be related to the time dependence of the monomer concentration and the mean cluster size. Results from the absorption experiments agree with the findings of previous light scattering measurements, and with the current theoretical models and molecular dynamics simulations of diffusion-limited aggregation kinetics.
引用
收藏
页码:5766 / 5770
页数:5
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