双层囊泡作为极性溶剂中C60-富勒烯二元体自组装形成球形分形聚集体的前体。

Bilayer vesicles as precursors for spherical fractal aggregates from the self-assembly of a C60-fullerene-dyad in polar solvent.

作者信息

Gayathri S Shankara, Patnaik Archita

机构信息

Department of Chemistry, Indian Institute of Technology Madras, Chennai 600036, India.

出版信息

J Chem Phys. 2006 Apr 7;124(13):131104. doi: 10.1063/1.2186992.

DOI:10.1063/1.2186992

PMID:16613442

Abstract

Spherical fractal aggregates of approximately 10 microm were formed from a pi-electronic amphiphile, C(60)-didodecyloxybenzene dyad when extracted from THF into water, necessitating a critical dielectric constant epsilon > or =30 in binary THF-water mixtures. Molecular dynamics simulations revealed the unit cluster to such a form involves an aggregation number approximately 90 with predominant soft associative molecular interactions which corroborated the octadecahedral model proposed for the cluster growth.

摘要

当从四氢呋喃（THF）萃取到水中时，π电子两亲物C(60)-二十二烷氧基苯二聚体形成了约10微米的球形分形聚集体，这使得在二元THF - 水混合物中需要临界介电常数ε≥30。分子动力学模拟表明，形成这种形式的单位聚集体涉及的聚集数约为90，主要是软缔合分子相互作用，这证实了为聚集体生长提出的十八面体模型。