Nickel-based catalysts possess high catalytic activity for olefin polymerization, with single active center and wonderfu这类催化剂具有高催化活性、单活性中心和良好的分子剪裁性，可以在分子层次上实现烯烃聚合的分子设计与组装。
The active center of a mammalian alpha-amylase. Structure of the complex of a pancreatic alpha-amylase with a carbohydra哺乳动物α淀粉酶的活性中心。胰α淀粉酶和糖抑制剂的复合物精确到2.2A分辨率的结构。