氢键供体Hydrogen-bond donors被认为比氢键受体hydrogen-bond acceptors给药物设计者带来更多问题。类药物化合物的大部分极性来自于氢键受体,因为它们的数量通常超过了氢键供体,并且在单个基础上溶解度更大。讨论了这种极性不平衡对优化渗透性和水溶性的影响。在优化配体对目标的识别方面应该考虑的一个因素是,氢键供体的存在...
网络氢键给体 网络释义 1. 氢键给体 ...形成氢键的 H-A的氢原子必须带有一些酸性, 作为氢键给体(hydrogen-bond donor), 酸性氢原子可以与硷性跟能提供电 … tw.knowledge.yahoo.com|基于7个网页
Hydrogen Bond DonorThe synthesis of high molecular weight poly(vinyl ethers) under mild conditions is a significant challenge since cationic polymerizations are highly sensitivity to chain transfer and termination events. We identified a novel and highly effective hydrogen bond donor (HBD)锕恟ganic ...
hydrogen bond donor catalysishydrogen bondsvinyl ethersThe synthesis of high-molecular-weight poly(vinyl ethers) under mild conditions is a significant challenge, since cationic polymerization reactions are highly sensitive to chain-transfer and termination events. We identified a novel and highly effective...
Asymmetric formation of γ-lactams via C–H amidation enabled by chiral hydrogen-bond-donor catalysts. Nat Catal 2, 219–227 (2019). https://doi.org/10.1038/s41929-019-0230-x Download citation Received05 November 2018 Accepted09 January 2019 Published18 February 2019 Issue DateMarch 2019 DOI...
Google Share on Facebook hydrogen bond (redirected fromHydrogen bonds) Thesaurus Medical Encyclopedia hydrogen bond n. A chemical bond in which a hydrogen atom of one molecule is attracted to an electronegative atom, especially a nitrogen, oxygen, or fluorine atom, usually of another molecule. ...
A hydrogen bond is a weak type of bond that occurs between the hydrogen atoms of one molecule and more electronegative atoms of other molecules such as nitrogen, oxygen and fluorine.Answer and Explanation: A hydrogen bond donor is the atom that is covalently bonded to the hydrogen atom that ...
Hydrogen bonds (H-bonds) are a specific type of electrostatic interaction between a proton attached to an electronegative atom (such as N or O) and a lone pair of electrons on an electronegative atom such as N, O, or F. The former is called the H-bond donor, the latter the H-bond ...
Overview A hydrogen bond (H bond) is the attractive non-covalent interaction between a hydrogen atom covalently bonded to an electronegative atom (hydrogen bond donor) and another electronegative atom (hydrogen bond acceptor), such as nitrogen, oxygen, or fluorine. ...
6) hydrogen donor 供氢体 1. Compound photoinitiator systems were composed by photoinitiator bis[2-(o- chlorophenyl)-4,5-diphenylimidazole](BCIM)and photosensitizer N,N-bis(diethylami- no)benzophenone(EMK)with four different kind of hydrogen donors N-phenylglycine (NPG),2-mereaptobenzothiazole(...