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- double crown ether 双冠醚
- The king is portrayed wearing the royal nemes headcloth, the royal beard and the double crown, symbolizing his rule over Upper and Lower Egypt. 这个国王被刻画佩带皇家头巾、皇家胡子和双层冠帽,作为统治着上、下埃及的象征。
- First round Osaka steel Pakistan 2-1 defeat 2006 Asian champion and second-place finisher Syria double crown Wang Ahl Calama. 首回合大阪钢巴2-1击败2006亚冠亚军叙利亚双冠王阿尔卡拉马。
- Under acid condition open chaining crown ether diaromatic aldehyde can react, and they will synthesize a compound of chaining crown ether diaromatic aldehyde thiosemi-carbazone kind. 摘要链状冠醚二芳醛在酸性条件下与氨基硫脲反应,合成了链状冠醚二芳醛缩氨硫脲类化合物。
- The king is also an incarnation of this god, hence the two birds wear the double crown and are flanked by the sun disk with a uraeus holding an "ankh" (life sign). 胸饰的中心部位有谢索斯特斯的两边各有一头隼,它被看作是王权的保护者。
- As for Looney's signature work, thought generally is when 16 years old kills time the double crown king on behalf of a Everton lineman unit to hang certainly shoots. 至于鲁尼的成名作,普遍认为是16岁时代表埃弗顿一线队绝杀双冠王时的吊射。
- Two new exocyclic ring-fused boron-dipyrromethene (BDP) dyes with benzo crown ether subunit at meso-position were prepared.Their spectroscopic and electrochemical properties were investigated. 本文报道了两种中位为苯并冠醚亚单元取代的含稠合外环的硼-二吡咯亚甲基染料的合成、光谱和电化学性质。
- It is reported that cadmium in the form of CdI 2- 4 can be preconcentrated by its complex reaction with a crown ether called polybenzo 15 crown 5 (A type), which is coated on a molecular sieve and filled into a glass column. 报道了用装有涂布了聚苯并 15 冠 5 (A型 )的分子筛的玻璃分离柱可用于水中痕量镉的预富集。 此分离方法是基于CdI2 - 4络阴离子与冠醚的络合反应。
- Synthesis and characterization of Schiff base type liquid crystalline crown ether ligandsA new kind of schiff base type liquid crystalline crown ether ligand was synthesized on the base of molecul. 二、席夫碱型液晶冠醚配体的合成与表征从分子设计出发,设计并合成了一类新的席夫碱型液晶冠醚化合物。
- Two amide type double armed crown ethers containing dibenzo 18 crown 6 unit were synthesized and their structures were confirmed by IR, 1HNMR,MS and elemental analysis. 合成了2个含二苯并-18-冠-6单元的酰胺型双臂冠醚化合物,其结构经IR、1HNMR、MS和元素分析确证,该2个化合物都不具有液晶性。
- Three kinds of crown ethers were synthesized for the study of sodium ion-selective electrode. They are bis(crown ether)s, derivatives of hydroxy-crown ether and open-chain amide. 本文为满足研制钠离子选择电极的需要,根据主客体化学、配位化学和离子选择电极等理论,设计并合成了三类新型冠醚化合物,它们的结构经元素分析、红外、核磁共振和质谱数据确证。
- crown ether silicon slice cleaning agent 冠醚硅片清洗剂
- Synthesis of Open Chaining Crown Ether Compound 开链冠醚衍生物的合成
- Keywords lactonic crown ether;synthesis; 内酯型冠醚;冠醚化合物;合成;
- Keywords crown ether;thiosemicarbazide;synthesis; 冠醚;合成;氨基硫脲;
- A review with 21 references on development and applications of calix crown ethers are described. 摘要综述了杯芳冠醚的产生、发展及应用研究的新进展,展望了它的工业应用前景。
- crown ether compounds mimetic enzyme 冠醚化合物的模拟酶
- crown ether crosslinked chitosan 冠醚交联壳聚糖
- Keywords crown ether;porphine ring;synthesis; 冠醚;卟吩环;合成;