Porphyrin building blocks for modular construction of bioorganic model systems
作者:Jonathan S. Lindsey、Sreedharan Prathapan、Thomas E. Johnson、Richard W. Wagner
DOI:10.1016/s0040-4020(01)85364-3
日期:1994.1
We outline a modular building block strategy for the covalent assembly of porphyrin-containing model systems. Molecular design issues for the synthesis of porphyrin dimers, dye-porphyrin dyads, and multi-porphyrin arrays have been used to guide the development of this approach. The major design constraints are to achieve directed coupling of free base and/or metalloporphyrin building blocks in dilute
Soluble Synthetic Multiporphyrin Arrays. 1. Modular Design and Synthesis
作者:Richard W. Wagner、Thomas E. Johnson、Jonathan S. Lindsey
DOI:10.1021/ja961611n
日期:1996.11.13
via mild Pd-mediated reactions (2−4 mM of each porphyrin in toluene/triethylamine (5:1) with Pd2(dba)3 and AsPh3 at 35 °C for 2 h) yields the corresponding diphenylethyne-linked multiporphyrinarray in 70−80% yield. The arrays are easily purified by a sequence of flash silica chromatography, preparative size exclusion chromatography, and gravity elution silica chromatography. The diphenylethyne linkers
Self-assembly with fluorescence readout in a free base dipyrrin–polymer triggered by metal ion binding in aqueous solution
作者:Rui Liu、Pothiappan Vairaprakash、Jonathan S. Lindsey
DOI:10.1039/c9nj01787a
日期:——
(260 nm) than in DMF (310 nm), where a more extendedconformation is expected. The increase in fluorescence of the bis(Pod-dipyrrinato)Zn(II) complex is readily observed by visual inspection (i.e., naked-eye readout). The conversion of a compact folded unimer (15 nm) to a more extended dimer (260 nm) triggered by metal ion addition denotes a conformationally malleable, environmentally sensitive molecular