通过与电子受体分子二正己基N-取代的1,2,4,8-萘四甲酸的卟啉相互作用,设计并合成了Zn(II)-金属化的5,15-二芳基卟啉的新供体-受体杂化体二酰亚胺(NDI)。通过同步加速器X射线衍射研究了这些超分子复合物中的结合相互作用,并通过1 H NMR光谱在溶液中进行了探测。通过将多个甲氧基和氟基团作为取代基引入卟啉的5,15-二芳基,首次实现了卟啉π密度的系统调节。对于这些,卟啉-NDI结合强度的变化由1确定。使用Swain型双参数方法显示1 H NMR滴定与通过结晶学验证的二芳基卟啉的外围取代图案紧密相关。新的1:1的供体-受体配合物形成了芳族堆积体系的特征,即取代卟啉与NDI之间的平行排列和短平面间距 通过在官能化的卟啉外围位点引入取代基来修饰卟啉表面上的电子密度,代表了电子可调芳族表面的一般解决方案:对它们的溶液和固态行为的理解将显着改善新型功能性供体-受体的合理设计。超分子材料
A Strategy for the Assembly of Multiple Porphyrin Arrays Based on the Coordination Chemistry of Ru-Centered Porphyrin Pentamers
作者:Chi Ching Mak、Nick Bampos、Scott L. Darling、Marco Montalti、Luca Prodi、Jeremy K. M. Sanders
DOI:10.1021/jo001564o
日期:2001.6.1
An approach which employs pentameric porphyrin arrays as building blocks toward larger porphyrin arrays is described. Two flexible, and one relatively rigid, Ru-centered porphyrinpentamers (1-3) were synthesized and fully characterized. Their potential as building blocks toward larger porphyrin arrays has been studied via their coordination chemistry using bidentate and tetradentate ligands. DABCO
Thermotropic phase transitions in 5,15-bis(4-alkoxyphenyl)octaalkylporphyrins
作者:Ernst J. R. Sudhöulter、Marinus van Dijk、Cees J. Teunis、Georgine M. Sanders、Sybolt Harkema、Gerrit M. H. van de Velde、Pieter G. Schouten、John M. Warman
DOI:10.1039/jm9960600357
日期:——
Nineteen novel alkyl substituted porphyrins have been synthesized and their thermal phase behaviour has been investigated in detail. Twelve compounds showed a reversible phase transition below the isotropization temperature. From time resolved microwave conductivity (TRMC) measurements and powder X-ray diffractometry it was concluded that the molecular packing does not change significantly at the lower phase transition temperature and that the porphyrin cores occupy isolated positions. Single X-ray diffraction measurements showed that the porphyrins are arranged in a layered structure and that the space between the layers is occupied by the alkyl substituents of the pyrrole units. The phase transitions at the lower temperature were therefore identified as changes in the crystal ordering of the porphyrins.
Synthesis and Fluorescence Properties of Selectively Metallated Diporphyrins with Electron-Accepting Moieties
作者:Toshi Nagata
DOI:10.1246/bcsj.64.3005
日期:1991.10
Synthesis of selectively metallated diporphyrins with electron-accepting moieties is described. Steady-state fluorescence spectra of these compounds snowed substantial quenching of the fluorescence of the free-base porphyrin. A possible “superexchange” mechanism of long-range electron transfer is discussed.
Inclusion of C60 into an adjustable porphyrin dimer generated by dynamic disulfide chemistry
作者:Amy L. Kieran、Sofia I. Pascu、Thibaut Jarrosson、Jeremy K. M. Sanders
DOI:10.1039/b417951j
日期:——
A new, highly flexible porphyrin dimer was isolated in preparative scale from a dynamic disulfide library; this receptor adjusts to fit guests with a wide range of steric requirements and, whilst C60 proved to be an unsuitable template for this library, a new C60-porphyrin complex was isolated and characterised.
Synthesis and Characterization of Doubly-Strapped Porphyrins
作者:Toshi Nagata
DOI:10.1246/bcsj.65.385
日期:1992.2
Synthesis of a “doubly-strapped” porphyrin is described, which has two –O(CH2)10O– straps on both sides of the porphyrin ring. This porphyrin did not form the zinc complex when treated with zinc acetate, even under forcing conditions. Such inertness toward zinc insertion can be attributed to the steric hindrance of the –O(CH2)10O– straps. Oligoporphyrins with one strapped ring were also synthesized. Reaction of these porphyrins with zinc acetate resulted in insertion of zinc into all non-strapped rings, while the strapped ring remained unchanged. These doubly-strapped porphyrins will be useful in constructing oligoporphyrins as photosynthetic model compounds, in which photochemical and electrochemical properties are controlled by selective metal insertion.