In order to get further information on the effect of terminal groups on the spectral regularity of diarylpoly-ynes, we carried out the syntheses of bis(4-biphenylyl)poly-ynes (In, n=1–6) and 2,2′-difluorenylpoly-ynes (IIn, n=1–4 and 6). The bathochromic shift of the longest-wavelength absorption maxima (λL) along with the increase in n was found to be expressed by the following empirical formulas:In:λL=24
The linkers in fluorene-labeled 2′-deoxyuridines affect fluorescence discriminating phenomena upon duplex formation
作者:So Young Lee、Seung Woo Hong、Hyeonuk Yeo、Gil Tae Hwang
DOI:10.1039/d0ra01651a
日期:——
Three fluorene-labeled 2′-deoxyuridines that differ in terms of their linkers—UF (without linker), UFL (with ethynyl linker), and UDF (with diethynyl linker)—have been introduced at the central positions of oligodeoxynucleotides to examine the effects that their linkers have on the fluorescence emission properties upon duplex formation with fully matched and single-base-mismatched targets. Here, we