共查询到20条相似文献,搜索用时 15 毫秒
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Christoph L. Teske 《无机化学与普通化学杂志》1993,619(6):1154-1154
?Ytterbiumdisulfide”?: A Correction The still open questions concerning preparation and crystal structure of ?Ytterbiumdisulfide”? could be answered now using new experimental results. The formerly investigated single crystals were not YbIIS2 but BaS2. 相似文献
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Buncha Pulpoka Jong Sueng Kim Seung Hwan Yang Jacques Vicens 《Journal of heterocyclic chemistry》2001,38(6):1383-1385
Two novel calix[4]cryptands were synthesized from 1,3‐alternate calix[4]bis‐azacrown. “Mappemonde II” consists of one 1,3‐calix[4]bis‐azacrown wrapped by a benzo‐crown ether loop. “Mill II” is composed of two 1,3‐calix[4]bis‐azacrowns linked by two benzo‐crown ether strands. 相似文献
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Hlne Freichels Vincent Pourcelle Ccile S. Le Duff Jacqueline Marchand‐Brynaert Christine Jrme 《Macromolecular rapid communications》2011,32(7):616-621
α‐Methoxy‐ω‐alkyne poly(ethylene glycol) (PEG) was tagged with pendent N‐hydroxy‐succinimidyl activated esters by photografting of a molecular clip. This easily synthesized heterofunctional PEG was found to be a versatile building block for (i) conjugation with an amino derivative and (ii) grafting to azido functional aliphatic polyesters backbone by Huisgen's 1,3‐dipolar cycloaddition. This original combination of “clip” and “click” reactions provides a versatile and straightforward pathway for the synthesis of functional amphiphilic and degradable copolymers valuable for biomedical applications such as in drug‐delivery.
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