作者:Bhanu P. Mudraboyina、James A. Wisner
DOI:10.1002/chem.201201668
日期:2012.10.29
self‐complementary oligomers that contain an underlying AADD hydrogen bond sequence are presented, and their self‐association was examined in the solution and solid state. The molecular recognition between the two strands is highly sensitive to substitutions of their component heterocycles. Substitution with electron‐donating and ‐withdrawing groups and the influence of preorganization has a large effect on the
介绍了四个包含基础AADD氢键序列的自互补低聚物的设计和合成,并在溶液和固态下检查了它们的自缔合。两条链之间的分子识别对其组成杂环的取代高度敏感。用给电子和吸电子基团取代以及预组织的影响对所研究复合物的整体稳定性有很大影响。特别地,证明了关于在ADAD低聚物中的各个位置处的取代的宽范围(> 10 5 M -1)的稳定性。在最极端的情况下,测得的二聚常数(K二聚体≥4.5×10 7 M -1)与迄今为止报道的中性AADD阵列最稳定的同型二聚体相当。