基于磺酸类席夫碱锌、镉配合物的TG-DTG和荧光性质研究

合成了两种席夫碱配合物[Zn(OBSP)2].2H2O(I)和[Cd(OBSP)2].2H2O(II)(KOBSP邻氨基苯磺酸缩吡啶—2—甲醛席夫碱的钾盐),并进行了热重和红外分析,最后研究了它们的荧光性质。结果表明,配合物(I)(II)的荧光来源可能是配体内部的π→π*的电荷跃迁引起的。     

配合物{[Ni(Phen)_3]·L·(OH)}的合成及其晶体结构

以邻菲罗啉(Phen)和邻氨基苯磺酸为配体,与硝酸镍利用水热合成法合成标题配合物{[Ni(Phen)3]·L·(OH)}(L=邻氨基苯磺酸阴离子)。通过红外光谱和元素分析对标题配合物进行结构表征,X-射线单晶衍射结果表明,标题配合物的分子式为:C42H31O4N7SNi,Mr=788,属单斜晶系,空间群为C2/c,晶胞参数:a=23.119?,b=15.792?,c=25.040?,β=111.2°,V=8523.3?3,Z=8,R1=0.0808,ωR2=0.2447。标题配合物由一个配阳离子[Ni(Phen)3]2+,一个邻氨基苯磺酸阴离子和一个氢氧根离子组成。在配阳离子中,中心Ni(II)与三个phen分子的六个氮原子配位,形成六配位的八面体构型。配阳离子通过静电引力与阴离子结合。化合物分子间通过氢键和Phen环π-π堆积作用形成三维结构。     

对甲基苯磺酸钕和对氨基苯磺酸钕的合成及其表征

过直接反应法合成了对甲基苯磺酸钕和对氨基苯磺酸钕,并通过元素分析、红外光谱、热重分析等手段对所得产物进行了表征.结果表明,这两种配合物中Nd与磺酸的比例均为13,且均含有2个水分子,配合物具有较高的热稳定性.     

一维链[Eu_2(dpa)_3(H_2O)_2]_n配合物的合成、结构与光谱表征

以2,2'-联苯二甲酸(H2dpa)、Eu2O3、乙醇、水为原料,通过水热合成法合成了配合物[Eu2(dpa)3(H2O)2]n(1),并通过X射线单晶结构分析、元素分析以及红外光谱、荧光光谱对配合物进行了表征.     

利用混合配体构筑3d-4f骨架:水热合成、结构和磁性研究

在水热条件下通过混合配体合成了一个3d-4f配位聚合物:[DyCo(2,3-pydc)2 (C2O4)0.5(H2O)3]· 3H2O.通过单晶X-射线衍射仪确定了该配合物的结构信息,进一步利用元素分析、红外光谱、热重对其进行了表征,测定了配合物的磁性质.     

2，6-吡啶二甲酸钠配合物的合成与晶体结构

在水溶液中合成了配合物Na(H2pydc)(Hpydc)(H2O)3(H2pydc为2,6-吡啶二甲酸),通过元素分析、红外光谱和单晶X射线衍射对配合物进行了表征.晶体数据分析表明,配合物为三斜晶系,空间群为PI,a=0.690 48(14)nm,b=1.116 5(2)nm,c=1.120 O(2)nm,α=85.53(3)°, β=82.23(3)°,γ=87.16(3)°,V=0.852 2(3)nm3,Z=2,F(000)=424,R1=0.048 1,wR2=0.126 7.配合物的中心原子钠与分子形式的配体H2pydc的一个氮原子(N(1))和两个氧原子(O(1),O(3)),单阴离子形式的配体Hpydc的一个氧原子O(5),以及三个水分子中的氧原子(O(9),O(10),O(11))配位,配位数为7.     

三维孔洞网状结构的Ni~(2 )和Co~(2 )配合物的合成及其结构和电化学性质

通过选用HCOOH,Ni(NO3)2,6H2O,CoCl2.2H2O等为原料,合成两种具有相同的?1,3-HCOO-桥联Ni2 和Co2 的三维孔洞结构的配合物[Ni(HCOO)2]n(1)和同样具有三维孔洞配合物[Co(HCOO)2]n.2H2O(2),通过水热和H-管扩散的方法得到了相同的两种配合物的晶体并用X-R A Y单晶衍射的方法表征了两种化合物的晶体结构。此外还测定了配合物1和2的电化学性质。     

巯基乙酸、异烟酰肼合锑(Ⅲ)三元配合物的合成、表征与抑菌活性研究

合成了新的巯基乙酸、异烟酰肼合锑(Ⅲ)三元配合物:[Sb(C2H2O2S)·(C2H3O2S)·C6H8N3O]Cl。经元素分析、X-射线粉末衍射、中红外、远红外光谱进行表征,确定了配合物的组成和结构。对XRD谱指标化,确定其晶系和晶胞参数,[Sb(C2H2O2S)·(C2H3O2S)·C6H8N3O]Cl:a=1.1858nm,b=2.3671nm,c=1.3850nm,β=87.67°;锑(Ⅲ)离子是通过N原子、S原子和O原子参与配位形成五配位的配合物。并对配合物进行了抑菌活性研究。     

二维配位聚合物[Sm（C7H6NO2）3（H2O）]n的合成与晶体结构

标题化合物[Sm(C7H6NO2)3(H2O)]n是由Sm2O3、4-氨基苯腈和水自组装反应得到.采用元素分析、IR及X-射线衍射法表征了该配合物.晶体结构表明:晶体属于单斜晶系,空间群P21/n.晶胞参数:a=0.9777(1)nm,b=2.2761(3)nm,c=0.9837(1)nm,β=100.02(1)°,V=2.1557(4)nm3,Z=4,Mr=576.76,Dc=1.777 g/cm3,μ=2.772 mm-1,F(000)=1140,Rint=0.0142,R1=0.0209,wR=0.0490.配合物的中心钐离子是八配位的双帽三棱柱体结构,4-氨基苯甲酸将配合物连接成二维网状结构,通过氢键最终形成三维超分子结构.     

蒽系双β-二酮桥联双核锌(Ⅱ)配合物的合成及荧光性能

以二苯甲酰甲烷、9,10-蒽-3,3'-双(1,3-戊二烯-2,4-二醇)、高氯酸锌为原料合成了新型固态三元配合物[Zn2(C24H20O4)(C15H11O2)2].4H2O,并用元素分析、电导率、红外光谱、电子光谱和电喷雾质谱对其进行了表征,确定了配合物的组成.研究了配合物在氮气气氛中的热分解行为,测得其荧光光谱的最大发射波长为430 nm.     

卡思卡特城堡

It is worthy of noting that, whilst Crookston Castle witnessed the earlier and happier portion of Mary's variegated life,     

不同的吃喝玩乐

一、吃和喝吃苹果 eat an apple, 吃药 take medicine,吃糖 have some sweets,吃饭 have one's meals,吃馆子 dine out,吃惊 be surprised/     

漏洞百出的教育

Many college freshmen arrive woefully unprepared to do college work, and as disadvantaged populations continue to grow, the share of the American work force that has made it through college is expected to plummet. Many experts blame that educational failure not just on high schools but also on colleges. School & College, a special report by The Chronicle, looks at efforts to fix the system. What reforms would better prepare students for college? What should schools and colleges be doing differently? How should state and federal officials help?     

汉字倒说

汉字的六书,《说文》对“转注”一类,语焉不详。后世学者提及转注,也仅限于许慎所举出的例字。《汉字例说》一文,作者从转注的角度综合考虑,对部分现代常用字作了分析,跟传统的解释有所不同。希望能抛砖引玉,互相切磋,以推进学术研究。     

只要努力,不要后悔

There are numbers of crossroads on our long and unpredictable life journey where we totally have no idea about which direction to choose. No matter what our decision is, we should not turn back, but face the music and go ahead instead. I am this kind of girl who always does try without regretting, one example is how I dealt with my love.     

浅谈移民问题

Migration occurs behind a variety of reasons and has a great effect on the whole world. People may migrate in order to improve their economic situation, or in order to escape civil strife, persecution, and environmental disasters. The impact of migration is complex, bringing both benefits anddisadvantages. This paper briefly talks about the causes of migration, the allocation of benefits, and the ways in which individual countries and the international community deal with this important subject.     

钱生钱!

我们绝大部分人都同意一件事情——我们喜欢金钱。但是你对金钱的喜欢之情足够到让你创立一份事业么?.财富通常被人忽视,主要在于人们不能真正了     

Sister Carrie, an Adherent of Desires

Sister Carrie is one of the most controversial characters in American literature.Thought as a "fallen woman" firstly,she was defined as a "new woman" by some critics later. However, by digging into the motivaton behind the whole process of Carrie's "success", the relationship between Carrie and her creator (the author), the social conditions of then American, it can be found that Carrie has never been free-standing on her thought and she has never found her real-sdf even after becoming a famous actress. In a society dominated by mass consumerism Carrie is only an adherent of her own desires. She also is a representative of all those country girls flooded into cities, a symbol and a sacrifice of the urbanization of America in a time countryside was overcome by cities.     

Improvement of one-cycle controller by use of proportional integral differential controller

1.IntroductionOne-cyclecontrolmethod,whichwasproposedaboutonedecadeago[1],hasbecomeanattractivemethodinspecialfieldssuchaspowerfactorcorrection[2-6],switchingamplifiers[7,8],etc.Themainideaofthiscontrollerisbasedonintegrationofdiodevoltageinone-cycleandforcesittobeexactlyequaltothereferencevalue.Themainadvantageofthiscontrollerisitsrealtimeabilitytorejectthevariationofinputvoltage[1].Despitethisgreatability,ithasnogoodperformancesinrejectingofloaddisturbanceandfollowingreferencecommands.Espec…