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In this thesis, a series of complexes based on aromatic multicarboxylic acids have been successfully synthesized in solutions or under hydrothermal conditions. Their structure and properties are investigated.(1) Eight complex compounds have been synthesized and characterized by X-ray single crystal diffractive technology: The eight complexes are listed as following: [Cu242] complex 1 [Cd22(H2O)4]·4H2O complex 2 [Co(H2btc)(H2O)3] complex 3 [Co2(H2O)2]·H2O complex 4 [Ni22(H2O)4] complex 5 [Cu22(H2O)4] complex 6 [Co(H2biim)2(H2O)2](H2btc) complex 7 [Zn(H2biim)2(H2O)2](H2btc) complex 8 The structure of complex 1 is dinuclear complex resulted from weak interactions(0-D chain); complex 2 is 1-D chain stucture result from interactions of water molecules; complex 3、4、5、6 are coordination polymers using hydrothermal synthses, where the first kind ligand is H4btc, the second kind ligand is phen and Co2+、Ni2+、Cu2+ as center ions, respectively. While the coordination enviroment of Co2+ is the same in complex 3, the coordination geometries around the Co atoms in complex 4 are obviously different because of the different reaction conditions. In complex 4, the 1-D chains are connected into 2-D layer through carboxy groups of ligand H4btc. The structures of complex 5、6 are 1-D chain stucture result from interactions of carboxy groups in ligand H4btc. Complex 7、8 are homeomorphy compounds. Either of them are linked to the 3-D chains through intermolecular hydrogen bonds. Each H4btc lose two protons and H2btc2- acts as negative electron balance.
合成了8个结构新颖的配合物,并用X-射线单晶结构分析方法确定了晶体结构,分别为: [Cu242] 配合物1 [Cd22(H2O)4]·4H2O 配合物2 [Co(H2btc)(H2O)3] 配合物3 [Co2(H2O)2]·H2O 配合物4 [Ni22(H2O)4] 配合物5 [Cu22(H2O)4] 配合物6 [Co(H2biim)2(H2O)2](H2btc)配合物7 [Zn(H2biim)2(H2O)2](H2btc)配合物8 配合物1是一个依靠弱作用连接的双核铜结构;配合物2借助水分子形成一维链状结构;配合物3、4、5、6是以H4btc为第一配体、phen为第二配体,通过水热法合成的配合物,其中,Co2+、Ni2+、Cu2+为中心离子;配合物3中的二价钴离子具有相同的配位环境,不同反应条件下得到的配合物4中的二价钴离子存在不同的配位环境,在配合物4中,一维链通过H4btc上的羧基形成一个二维层结构;配合物5、6是借助H4btc上的羧基形成的一维链状结构;配合物7、8属于异质同晶结构,它们的分子通过分子间氢键形成三维网状结构,H4btc上的羧基失去2个质子,作为一个二价负离子起到电荷平衡作用。
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The antifatigue function of more than forty kinds of insect,fungi,bacteria and algae was studied and sifted first in this study by detecting swimming endurance and biochemical indexes. Then,in order to choose the better ones from the compoud additives formulas composed of L-carnitine, taurine, octacosanol,vitaminE and insectA ,a cross design experiment was done. InsectA was discovered in the first experiment that it greatly improved the antifatigue function in mice. Finally, the acute toxicities, thirty-day feeding effects and the mechanisms of No. 1 antifatigue compoud additives(No.1ACF) were studied.
本研究首先通过小鼠游泳耐力试验和血液生化指标的测定对40余种昆虫、菌藻的抗疲劳作用进行了筛选;在此基础上,应用正交设计方法对以L-肉碱、二十八醇、牛磺酸和本实验筛选出的抗疲劳功效较好的昆虫A为原料的配方进行了抗疲劳作用筛选,并对筛选出的最佳配方,即抗疲劳复方添加剂1号配方进行了小鼠急性经口毒性试验、30天喂养试验和抗疲劳作用机理研究。
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That the legislative and executive powers of the state should be separate and distinct from the judicative; and, that the members of the two first may be restrained from oppression by feeling and participating the burthens of the people, they should, at fixed periods, be reduced to a private station, return into that body from which they were originally taken, and the vacancies be supplied by frequent certain, and regular elections in which all, or any part of the former members, to be again eligible, or ineligible, as the laws shall direct.
五、州的立法权和行政权应与司法分立,并应有明确界限;前两者的成员如能感受并分担人民的疾苦,就可以不致压迫人民;他们应在规定的期限,恢复平民身分,回到他们原来的单位去,其空缺则通过经常的、确定的、定期的选举来填补;在选举中,将按照法律规定,确定以前的所有成员或部分成员是否仍符合条件。
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That the legislative and executive powers of the state should be separate and distinct from the judicative; and, that the members of the two first may be restrained from oppression by feeling and participating the burthens of the people, they should, at fixed periods, be reduced to a private station, return into that body from which they were originally taken, and the vacancies be supplied by frequent certain, and regular elections in which all, or any part of the former members, to be again eligible, or ineligible, as the laws shall direct.
五、 州的立法权、行政权应与司法权分立,并要有明确的界限;前两者的成员如能感受并分担人民的疾苦,就不至于压迫人民;他们应在规定的任职期限之后恢复平民身份,回到他们原来所在的机构,其空缺则通过经常的、确定的以有定期的选举来填补;在选举当中、将按照法律规定,确定以前的所有成员或部分成员是否仍符合连任的条件。
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Six compounds have been isolated from Lysimachia congestiflora, and ardicrenin (5) is isolated from this species for the first time.
从聚花过路黄中分离得到6个化合物,其中化合物(5)为首次从该植物中发现。
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First, we investigate the methods of sepiolite s purification from ore , from which we get the incompact short fibrous sepiolite for the experiment ; the prime activatited term is also obtained through this experiment. We use activated sepiolite to process the absorption experiment on heavy meatal ion ( Ni2+, Cr6+, Pb2+, Cu2+, Cd2+), noble metal ion, dynamite cotnposton in water and industrial oil. we take Ni2+ for example to confirm the prime adsorbent term , from the experiment we get the adsorbent isotherm . Make the dynamic absorption experiment and regenerate experiment using sepiolite on the heavy metal(Ni2+) on the base of static absorption experiment.
我们首先研究了从矿石中提纯海泡石的方法,制得供实验用的松散短纤维状海泡石;通过实验确定了最佳活化条件;进行了活化后的海泡石对重金属离子Cr~(6+、Pb~(2+)、Cu~(2+)、Cd~(2+)、贵金属离子、水中炸药组份、工业油的吸附实验;以Ni~(2+)为例选择了最佳吸附条件;通过实验作出了以上各组分的吸附等温线;在静态吸附实验的基础上进行了海泡石对重金属Ni~(2+的动态吸附实验及再生实验。
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Quality first, customer first is our consistent principle of service, my Deputy Secretary for Germany and the United States from the date spraying equipment, the development of cooperation with Japan MESAD Co., Ltd. to introduce the latest technology and materials.
&质量第一,顾客至上&是我司一贯的服务宗旨,我司已从代理德美日噴涂設備,發展为同日本MESAD株式会社合作,引进最新技术及材料。
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This second " romantic star " manorial arena of the first belle is surpassed at 18 spread out first-run and voting big fight, contest condition it may be said is all-time and intense, ferial the girl of fire of li of fire of act wind wind is full be nothing difficult of nature of manorial lira ticket, those gentle and quiet and missish girls are same after person of unwilling also house, call a horn, help a good friend, these way is used too much, do not have new meaning, we should come bit more special, DIY just can not say just oh, had from the definition you seen firework specially good effect do not have?
本次&浪漫之星&庄园第一美女擂台赛于18展开首轮投票大战,赛况可谓空前激烈,平日里行事风风火火的姑娘满庄园里拉票自然不在话下,那些文静矜持的姑娘们一样也不甘居人后,喊喇叭,拉好友,这些个招数用得太多了,没新意,咱要来个特别点的,DIY可不只是说说而已哦,自定义烟花特效你见过没?
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The present doctoral dissertation was carried out to study the chemical constituents isolated from stems of two medicinal schisandraceous plants.34 compounds were isolated from the ethanol extracts of the stems S.henryi collected in the Jiangxi province by various column chromatographies.27 of them were identified on the basis of spectral analysis.There are 18 lignans,(including 5 dibenzocyclooctadienes,6 aryltetralins,2 tetrahydrofurans,3 diarylbutanes,2 other lignans),3 flavanols,2 glyceroesters,1 naphthoquinone,1 xanthine and 2 steroids,of which 6 compounds were new compounds,and 7 compounds were isolated from this family for the first time.
采用多种色谱技术进行分离纯化,从翼梗五味子藤茎的乙醇提取物中分离到34个化合物,综合运用现代波谱学技术鉴定了27个化合物,包括木脂素类化合物18个(其中联苯环辛烯类木脂素5个,芳基四氢萘类木脂素6个,四氢呋喃类木脂素2个,二芳基丁烷类3个,其他类型木脂素2个),黄烷醇类化合物3个,甘油酯类化合物2个,萘醌类化合物1个,黄嘌呤类化合物1个,甾体类化合物2个,其中,5个为新化合物,7个为本科首次报道。
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Through the tests on gas driving water and water driving gas, the flow law of gas and water was real-time observed. Mainly based on the test of water driving gas as an example, the development of molding coal sample and NMR triaxial osmoscope was demonstrated. The experiment process of water driving gas and parameters were demonstrated. NMRI images of molding sample in horizontal cross-section along the driving direction were obtained by NMRI instrument. The results from images were analyzed and compared. Some novel laws were obtained as the following:(1) the leading edge of water driving has inconsistency. This certified the important previous conclusion that the storage of methane mainly was absorbed in inner surface of pore from NMRI technique;(2) the existence of dominant driving pathway was tested and the way kept almost fixed. The pathway is apt to exist in the edge of coal samples where pore and fracture fully develop;(3) the variation of water flow determines the transport velocity of leading edge of water driving and it has lag effect;(4) the effectiveness of the first driving is better than the second driving;and (5) the subsequence of water driving gas are from trunk fractures to branch fractures, then to branch pores.
主要以水驱气NMRI试验为例,详细介绍了核磁共振三轴渗透仪和型煤试件的研制,并重点阐述了水驱气试验过程和相关参数,利用NMRI技术实时观测得到了不同时间沿驱替方向型煤试件水平剖面的NMRI成像图,最后对试验结果进行了比较分析,揭示了一些新的规律认识:(1)水驱替前缘具有不一致性,从NMRI试验角度验证了前人甲烷类气体赋存形式主要以吸附在孔隙内表面为主的重要结论;(2)煤试件存在优势驱替路径,且这种优势路径在驱替过程中基本保持不变,水驱气的优势驱替路径易产生在煤试件边缘,即煤孔隙裂隙发育区;(3)水驱流量变化决定了水驱前缘的运移速度,且对水驱气效果具有滞后效应;(4)水驱气初次驱替效果好于二次驱替效果;(5)水驱替气的顺序为:主要大裂隙—周边裂隙—周边孔隙。
- 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