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首页> 外文期刊>Bulletin of the Chemical Society of Japan >Adsorption Equilibria of Novel Phthalocyaninatomagnesium(II) Derivatives with Thioethers at the Toluene/Water Interface
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Adsorption Equilibria of Novel Phthalocyaninatomagnesium(II) Derivatives with Thioethers at the Toluene/Water Interface

机译：新型酞菁亚胺（II）衍生物与硫醚在甲苯/水界面的吸附平衡

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摘要

Three novel phthalocyaninatomagnesium(II) derivatives with eight peripheral thioethers (MgPc(SR)_8) such as (2,3,9,10,16,17,23,24-octakis-ethylthiophthalocyaninato)magnesium(II) (MgPc(SEt)_8),(2,3,9,10,16,17,23,24-octakis-benzylthiophthalocyaninato)magnesium(II) (MgPc(SBz)_8),and (2,3,9,10,16,17,23,24-octakis-benzhydrylthiophthalo-cyaninato)magnesium(II) (MgPc(SBh)_8) were synthesized.The interfacial adsorption and aggregation behavior of the three derivatives in a toluene/water system were examined by means of a high-speed stirring (HSS) method and a centrifugal liquid membrane (CLM) method.The interfacial adsorption constant of each MgPc(SR)_8 derivative at the toluene/water interface was determined by the HSS measurement.Only in the case of MgPc(SEt)_8,the formation of the trimer was observed at the interface.Moreover,the CLM measurements showed that the interfacial aggregate of MgPc(SEt)_8 had a new broad band (613 nm) at the blue flank of the Q band (702 nm) of MgPc(SEt)_8 monomer,which might be ascribed to H-aggregate.Extended double-dipole (EDD) model calculations suggested a cofacially stacked arrangement of MgPc(SEt)_8 molecules in the trimer.The interfacial spectral change indicated that the aggregation of MgPc(SEt)_8 at the toluene/water interface proceeded in a two-step,three-stage (monomer->dimer->trimer) formation.
机译：三种具有8个外围硫醚（MgPc（SR）_8）的新型新颖酞菁原子镁（II）衍生物，例如（2,3,9,10,16,17,23,24-辛基-乙基硫代酞菁钠）镁（II）（MgPc（SEt） _8），（2,3,9,10,16,17,23,24-辛基-苄硫基邻苯二甲酰氰基）镁（II）（MgPc（SBz）_8）和（2,3,9,10,16,17，合成了23,24-辛基-苯甲硫基酞菁-氰基镁（MgPc（SBh）_8），并通过高速搅拌研究了三种衍生物在甲苯/水体系中的界面吸附和聚集行为（HSS）方法和离心液膜（CLM）方法。通过HSS测量确定每种MgPc（SR）_8衍生物在甲苯/水界面的界面吸附常数，仅在MgPc（SEt）_8的情况下，此外，CLM测量表明MgPc（SEt）_8的界面聚集体在MgPc的Q波段（702 nm）的蓝色侧面有一个新的宽带（613 nm）。 （SEt）_8单体扩展的双偶极子（EDD）模型计算表明，三聚体中MgPc（SEt）_8分子的界面堆叠排列。界面光谱变化表明MgPc（SEt）_8的聚集在甲苯/水界面以两步，三阶段（单体→二聚体→三聚体）形成。

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