单词	macrocyclic
释义	macrocyclic /ˌmakrə(ʊ)ˈsʌɪklɪk / /ˌmakrə(ʊ)ˈsɪklɪk/ adjective Chemistry Relating to or denoting a ring composed of a relatively large number of atoms, such as occur in haem, chlorophyll, and several natural antibiotics.The polar head is a macrocyclic lactone ring containing nine amino acid residues, three of which have positive charges, whereas one has negative charge.... The intermolecular interactions between the viologens and the macrocyclic molecule were investigated in a solution before photoirradiation. Collectively, they are called tetraamido macrocyclic ligands or TAML for short. Derivatives macrocycle noun ... Their device was based on a supramolecular system consisting of a p-electron-donating macrocycle threaded with a p-electron-accepting wire-like molecule. Very few porphyrins are known to form J-aggregates, the main requisite being the zwitterionic character with the protonation of the pyrrole nitrogen in the macrocycle. However, similar spectral changes can also be produced by the protonation of the macrocycle at the azomethine nitrogens, although there are very few reports in which this phenomenon is discussed.
随便看	grouper group firing group flashing group genitive group home group hug groupie grouping group insurance groupism groupist group language grouplet group marriage group mate group memory groupment group mentality group mind group norm Group of Eight Group of Seven Group of Seventy-Seven Group of Three Group of Twenty

英语词典包含243303条英英释义在线翻译词条，基本涵盖了全部常用单词的英英翻译及用法，是英语学习的有利工具。