Both were measured using X-ray single crystal diffraction. For the crystal in MeOH, X-ray in compound. In an ansymmetry unit, there are two Cu atoms, two ligands and twosolvent methanol molecules. The tetranuclear complex contains two kinds of Cucenter.

本文在MeOH中得到了階梯型四核銅骨架配合物二级黄片视频；在THF中得到了扭曲的立方烷型四核銅骨架配合物，經(jīng)晶體結(jié)構(gòu)分析表明国产成本人h动漫无码亚洲3D，階梯型四核銅骨架配合物是由兩個(gè)Cu2被μ~3-剪刀撐二個(gè)醇羥基O所連接形成中心對(duì)稱的二銅二聚體結(jié)構(gòu)美国无码一级视频。

Most useful structures require complex and thermodynamically unlikely arrangements of atoms.

最有用的結(jié)構(gòu)需要復(fù)雜和熱力學(xué)不可能安排原子最新99在线拍视频。

In order to obtain versatile ulitity of host molecules, three new chiral calix [4] crown ethers containing aza, thio atoms bearing two chiral sites provided by -cysteine ester were synthesized by the condensation of calix [4] arene diacid dichloride with oligoethylene glycol bridged bis-amino acid methyl ester. All new compounds were characterized by NMR, MS and elemental analysis.

以-半胱氨酸為手性源，利用多甘醇二氯醚在堿性條件下對(duì)半胱氨酸巰基進(jìn)行烷基化反應(yīng)亚洲性爱有码，成功地合成了多甘醇醚鏈橋聯(lián)的半胱氨酸衍生物久久黄色视频，醚化反應(yīng)后，在高度稀釋條件下與對(duì)叔丁基杯[4]芳烴二乙酰氯進(jìn)行雙功能基縮合反應(yīng)成功地合成了新型的手性杯[4]含氮高清无码在线不卡、硫雜冠醚亚韩欧美一区二区在线观看，并利用〓H NMR、MS等譜圖手段對(duì)其結(jié)構(gòu)進(jìn)行了表征911视频黄色。

The results show that the transition between HOMO and LUMO in the three compounds is the electronic transformation from C1, C2, C3 and C4 to hetero-atoms (N atom in pyrrole, O atom in furan and S atom in thiofuran).

結(jié)果表明www.youjizz.com.日本，這三種五元化合物HOMO到LUMO的躍遷是電子從C1、C2黄色片三级片久久、C3和以轉(zhuǎn)移到雜原子（毗咯中的N原子国产一级91无码乱码电影，呋喃中的O原子和噻吩中的S原子）上，并在6-31G水平上用單激發(fā)組態(tài)相互作用方法分別計(jì)算了三種物質(zhì)的熒光光譜国产又粗又黄录像，所得計(jì)算結(jié)果與實(shí)驗(yàn)值基本符合在线看天天影视男人av。

Thyronine with three iodine atoms added.

加有三個(gè)碘原子的甲腺氨酸。

The element Sb exists in many forms in the film: transpositional atoms and compounds such as Sb2O3, Zn7Sb2O14 etc. ZnO crysal grains grow in mixing directions. The lattice relaxation and content of second phases increase when more Sb is doped. The UVA absorption of doped ZnO thin film obviously increases. The ultraviolet absorption peak narrows, the absorption intensity increases, the absorption margin becomes steep and moves to shorter wavelength about 5 nm, and the visible absorption increases in some sort.

薄膜中Sb以多種形態(tài)存在：替位原子和化合物(Sb2O3男人操女人屄的视频、Zn7Sb2O14)等91黄在线看，ZnO呈混晶方式生長(zhǎng)；隨著Sb含量的增加欧美性生活，其引起的晶格畸變和次晶相的含量逐漸增加阿拉伯三级片视频；摻雜薄膜在遠(yuǎn)紫外波段的吸收顯著增強(qiáng)，UV吸收峰變窄干bb综合，強(qiáng)度增大黄色视频免费，吸收邊變得陡峭且向短波方向移動(dòng)達(dá)5nm，在Vis波段的吸收有所增強(qiáng)成年人黄色网站视频。

CH3OH has been designed, synthesized and characterized by X-ray diffraction analysis. In this dinuclear complex, it is worthy of notice that the source of tridentate chelate atoms (1N2O) of IDA is different from that of the reported complex.

合成過程中色综合网站，我們還首次得到了與1，10-鄰菲咯啉及亞氨基二乙酸絡(luò)合的銅的不對(duì)稱雙核配合物晶體永久免费精品影视网站下载。

The central Ni ions are coordinated by six nitrogen atoms from the two I single tridentate ligands L and possess distorted octahedral geometry.

中心鎳離子與兩個(gè)配體上的六個(gè)氮原子配位構(gòu)成變形八面體結(jié)構(gòu)91制服丝袜。

The ligands are tridentate and bridge across the Ag〓 triangles with bridging S atoms occupying all three edges of these trans-oriented triangles.

三齒配體通過硫原子形成了跨過Ag〓三角平面的三條邊的橋鍵。

Both iron atoms of the binuclear unit are bridged by one oxy atom and two acetate groups. Each iron atom is also bound to facially - coordinating tridentate IDB ligand with the aliphatic nitrogen donor situated trans to theμ- oxy atom. Each iron centers is in a distorted octahedral symmetry.

每個(gè)雙核單元的兩個(gè)鐵原子均通過一個(gè)氧原子和兩個(gè)醋酸根連接国产黑色丝袜在线观看下，每個(gè)鐵原子同時(shí)還與位于橋氧原子對(duì)位的三齒配體IDB重脂肪鏈上氮原子相結(jié)合三级黄色在线，每個(gè)鐵中心為一變形八面體結(jié)構(gòu)。