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- 与 ligands 相关的网络例句 [注:此内容来源于网络,仅供参考]
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UV-Vis spectrum showed that some monomer or oligomer were existed in this film. The results demonstrated that the PPy chains were served as both the reductant of chloroauric acid and the ligands to stabilize gold-NPs.
接着利用吡咯单体及寡聚体具有的还原性,将新合成的聚吡咯膜浸泡在氯金酸水溶液中搅拌反应,通过扫描电镜观察发现,在膜中还原生成了大量的金纳米粒子,同时在膜的表面也观察到了金纳米粒子的存在。
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The results showed that the mole ratio of three ligands to CoCl_2, NiCl_2 were 1:1 and to CuCl_2, ZnCl_2, CdCl_2 were 2:1, The IR, UV-Vis and FS of complexes were investigated. Their IR peaks were classified as the corresponding groups or bonds; The relation of their structure with the conjugative effects, absorbtion wavelength and molar absorb coefficients were discussed with the UV-Vis and FS.
结果表明:噻唑类配体与金属CuCl_2,CdCl_2配位比分别2∶3和3∶2,至于配位机理还需进一步探讨;硒二唑配体与CoCl_2和NiCl_2配位比均是1∶1,而与CuCl_2、ZnCl_2和CdCl_2的配位均为比2∶1;对配合物的IR吸收峰进行了归类与指认,并对配合物的紫外和荧光光谱进行讨论分析,推测硒二唑类化合物与金属发生配位的部位是v中Se原子与金属配位。
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Crystal structural analysis reveals that, because water molecules bond to Cu atoms, the dhbd ligand can only adopt a hydroxyl oxygen atom to bridge two reversed U-shaped subunits into a novel centrosymmetric dual-U-shaped tetranuclear Cu structure. Each U-shaped frame consists of two crystallographically distinct Cu atoms, two dpphen ligands and one coordinated water molecule.
晶体结构分析表明,由于水的配位阻断, 2,3-二羟基丁二酸根仅通过单羟基氧桥联两个U形双核亚单元形成具有一个对称中心的双U形四核结构,其中U型亚单元包含晶体学上不对称的2个Cu原子、1个2,3-二羟基丁二酸根、2个4,7-二苯基-1,10-邻菲咯啉和1个配位H2O分子。
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Inthis papor,we synthesize and symbolize three sulphide bicarboxylate ligands such as 2.5-bis-1.3,4-thiadiazole;2,2 -(o-phenylenedimethylenethio) diacetic acid(L11); 2,2 -(m-phenylenedimethylenethio) diacetic acid.
本文合成和表征了2,2′-(1,3,4-噻二唑-2,5-二硫基)二乙酸、2,2′-邻苯二甲硫基二乙酸和2,2′-间苯二甲硫基二乙酸三个含硫二元羧酸配体。
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For certain reactions, they function as chemoenzymes and produce both good chemical and optical yields. Over the last decade a wide range of C〓-symmetric chiral bisoxazoline ligands have been synthesized from readily available diacid derivatives and amino alcohols.
但是,手性双噁唑啉催化的某些不对称反应的机理以及影响双噁唑啉分子催化性能的结构要素目前仍不是很清楚,诱导某些反应的不对称选择性仍有待于进一步提高,因此需设计和合成新的双噁唑啉类配体。
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Five new Mn metal-organic coordination polymers, _n (1),{·1.5H_2O}_n (2), _n (3), _n (4) and {[Mn_3_2_2_2(H_2O)_2]·2H_2O}_n (5), were prepared through hydrothermal reactions of Mn acetate with H_2tbip or H_2mip in the presence of different dipyridyl co-ligands.
利用5-叔丁基间苯二甲酸、5-甲基间苯二甲酸和醋酸锰以及不同含氮辅助配体在水热条件下自组装得到了5个配位聚合物,_n(1),{·1.5H_2O}_n(2),_n(3),_n(4)和{Mn_3_2_2_2·2H_2O}_n(5)。
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To further extend the scope of this type Cannizzaro disproportionation reaction and the reactivity of enolate ligand in complex with aldehyde,we designed to synthesis new rare earth complexes containing arylamido and.enolate mixed ligands,studied their reactivity with aromatic aldehydes for the disproportionation reaction.
为了进一步探索这种歧化反应的应用范围及配合物中作为配体的乙烯醇基与醛的反应性,我们设计合成了含胺基、乙烯醇基混合配体的新型稀土配合物,并研究了其与芳香醛的反应。
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Firstly,two novel rare earth complexes(CH_2=CHO)Ln~Ⅲ[2,6-_2PhNSiMe _3]_2Li_3Ln=Y(2,Yb(3)containing arylamido and enolate mixed ligands have been synthesized by treatment of 2 equiv of of 2,6-~iPr_2PhNHSiMe_3 with exces n-BuLi at -78℃in THF for 12h,followed by reaction with 1 equiv of LnCl_3at 80℃for 24h in one-pot.All the two compounds were characterized by spectroscopic methods,elemental analyses,and a single-crystal X-ray diffraction study.
首先,-78℃下,在两当量的2,6-~iPr_2PhNHSiMe_3(1)THF溶液中加入过量的n-BuLi,反应12小时,再加入一当量的LnCl_380℃下,反应24小时,一锅法合成了含胺基、乙烯醇基混合配体的新型稀土金属配合物(CH_2=CHO)Ln~Ⅲ[2,6-_2PhNSiMe_3]_2Li_3Ln=Y(2、Yb(3),上述化合物结构经单晶X-ray衍射、光谱和元素分析表征,表明我们得到的是一类新型的三价稀土配合物。
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The chelating ability of its enolate anion (TTF-ph-tfac) has been investigated with [MIICl_2·xH_2O] (M = Zn and Co) leading to complexes Zn(TTF-ph-tfac)_2(CH_3OH)_2 (7) and Co(TTF-ph-tfac)_2(CH_3OH)_2 (8), where the metal center is coordinated by two TTF-ph-tfac ligands. This redox active ligand shows promising features for the elaboration of hybrid organic-inorganic building blocks.
具有反铁磁行为的化合物5在110-120K观察到了相转变的发生,是目前已报道的该类化合物中最高的相变温度。3、TTF-ph-tfac烯醇阴离子具有很强的配位能力,与金属氯化物螯合配位分别生成了配合物Zn(TTF-ph-tfac)_2(CH_3OH)_2 (7)和Co(TTF-ph-tfac)_2(CH_3OH)_2 (8),每个中心金属都桥连两个TTF-ph-tfac配体。
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The results show that:(1) When N-methylethylenediamine and N, N'-methylethylenediamine equatorially coordinated to Cd〓, arenedisulfonates such as 1, 5-naphthalenedisulfonate, 2, 6-naphthalenedisulfonate and 4, 4'-bipenyldisulfonate act as a bridging ligands coordinated to adjacent Cd〓 centers, leading to a one dimensional chain structure.
研究结果表明:(1)N-甲基乙二胺和N,N'-二甲基乙二胺与Cd〓在赤道平面配位后,芳烃二磺酸根离子作为桥联配体与相邻的Cd〓在轴向配位形成了一维链状结构。
- 推荐网络例句
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The split between the two groups can hardly be papered over.
这两个团体间的分歧难以掩饰。
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This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.
这种做法不仅鼓励了更多的反应,而且减少跟风的可能性。
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The new PS20 solar power tower collected sunlight through mirrors known as "heliostats" to produce steam that is converted into electricity by a turbine in Sanlucar la Mayor, Spain, Wednesday.
聚光:照片上是建在西班牙桑路卡拉马尤城的一座新型PS20塔式太阳能电站。被称为&日光反射装置&的镜子将太阳光反射到主塔,然后用聚集的热量产生蒸汽进而通过涡轮机转化为电力