Hydrogen Bonding-Driven Highly Stable Homoduplexes Formed by Benzene/Naphthalene Amide Oligomers

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	Hydrogen Bonding-Driven Highly Stable Homoduplexes Formed by Benzene/Naphthalene Amide Oligomers
	Xu YX(徐云详)1; Zhan TG(占田广)1; Zhao X(赵新)1; Li ZT(黎占亭)1
刊名	Org. Chem. Front.
	2014
卷号	1 页码:73-78
其他题名	氢键驱动构筑高度稳定的苯和萘酰胺寡聚体同双股结构
通讯作者	赵新 ; 黎占亭
英文摘要	This paper describes the dimerization of aromatic amide oligomers in chloroform. The oligomers were prepared by step-by-step coupling of benzene-m-dicarboxylic acid and naphthalene-2,7-diamine. Triethylene glycol chains were introduced into the 5-position of the benzene rings to provide solubility in organic solvents. 1H NMR investigations revealed that, although shorter oligomers did not exhibit good dimerization ability, longer oligomers with five or more amide units could form stable homoduplexes which were stabilized by intermolecular multiple N–H?OvC hydrogen bonds. The association constants (Ka) of the 3-, 4- and 5-mer oligomers were determined using 1H NMR dilution experiments, while the Ka values of a 5-mer oligomer and a 7-mer oligomer, which were appended with two or one pyrene unit, were also evaluated using fluorescent dilution experiments. The results showed that the stability of the homoduplexes of the aromatic amide oligomers is nearly linearly related to the number of their amide units, and a Ka of 3.0 × 107 M?1 was determined for the 7-mer oligomer.
学科主题	物理有机化学
原文出处	http://dx.doi.org/10.1039/c3qo00032j
语种	英语
内容类型	期刊论文
源URL	[http://ir.sioc.ac.cn/handle/331003/39145]
专题	上海有机化学研究所_物理有机化学研究室
作者单位	1.中科院上海有机化学研究所 2.复旦大学
推荐引用方式 GB/T 7714	Xu YX,Zhan TG,Zhao X,et al. Hydrogen Bonding-Driven Highly Stable Homoduplexes Formed by Benzene/Naphthalene Amide Oligomers[J]. Org. Chem. Front.,2014,1:73-78.
APA	徐云详,占田广,赵新,&黎占亭.(2014).Hydrogen Bonding-Driven Highly Stable Homoduplexes Formed by Benzene/Naphthalene Amide Oligomers.Org. Chem. Front.,1,73-78.
MLA	徐云详,et al."Hydrogen Bonding-Driven Highly Stable Homoduplexes Formed by Benzene/Naphthalene Amide Oligomers".Org. Chem. Front. 1(2014):73-78.