Different types of metal ion complexants include acyclic ( podand ) , cyclic ( crown ether , calixarene ) , and bicyclic ( calix-crown , cryptand ) ligands .
金属离子络合剂的类型包括无环(醚),有环(冠醚,杯芳烃)和双环(杯冠,穴)配体.
Other acyclic monoamines and their derivatives ; salts thereof .
其他无环单胺及其衍生物以及它们的盐。
Another major contribution was by dr robert martin from object mentor , who wrote about dependecies and acyclic architectures