卤键是一种新的分子间非共价作用力,它存在于卤素原子(路易斯酸)和具有孤电子对的原子或π-电子体系(路易斯碱)之间,在超分子化学、材料科学、生物识别和药物设计等领域已经显示出独特的优势。本文主要从卤键的特征和在化学传感和分子识别中的应用以及发展前景等几方面进行了介绍,期望引起人们对卤键的更多关注。
Halogen bonding (XB) is a noncovalent interaction between halogen atoms, that work as electron density acceptors (XB donors ) and neutral or anionic electron density donors (XB acceptors ). It has displayed strong advantages in materials science, supramolecular chemistry, biological recognition and drug design etc. The definition, characteristics of halogen bonding and its applications in chemical sensing and molecular recognition are discussed in this review.