Characterization methods of organic electrode materials

The development of novel organic electrode materials is of great significance for improving the reversible capacity and cycle stability of rechargeable batterie...     

Cyanide Bridged Platinum-Iron Complexes as Cisplatin Prodrug Systems: Design and Computational Study

The potential role of cyanide-bridged platinum-iron complexes as an anti-cancer Pt(IV) prodrug is studied. We present design principles of a dual-function prodrug that can upon reduction dissociate and release concurrently six cisplatin units and a ferricyanide anion per prodrug unit. The prodrug molecule is a unique complex of hepta metal centers consisting of a ferricyanide core with six Pt(IV) centers each bonded to the Fe(III) core through a cyano ligand. The functionality of the prodrug is addressed through density functional theory (DFT) calculations.     

Selective Photocatalytic Oxidation of Sulfides in Lanthanide Metal -Organic Frameworks Incorporating Ru(2,2′-bpy)3 photosensitizer

Three isostructural lanthanide metal-organic frameworks (Ln-MOFs) were synthesized with uncoordinated N^N site, and the Ru(N^N)₃ photosensitizer was introduced via coordination link. These functionalized frameworks showed excellent performance in the photocatalytic oxidation of sulfides with good conversion and high sulfoxide selectivity.     

The Stationary Optomechanical Entanglement Between an Optical Cavity Field and a Cubic Anharmonic Oscillator

International Journal of Theoretical Physics - Currently, the creation of the quantum entanglement is still one of the most challenging goals. Here, we theoretically investigate the stationary...     

Inherent mass transfer engineering of a Co,N co-doped carbon material towards oxygen reduction reaction

Oxygen reduction reaction (ORR) is an important process for the conversion and utilization of a wide range of renewable energy sources, and is critical for the ...     

SYNTHESIS,CHARACTERIZATION, CRYSTAL STRUCTURE,AND DFT STUDY OF N-(2-METHOXY-5- (4,4,5,5-TETRAMETHYL-1,3,2-DIOXABOROLAN-2-YL) PYRIDIN-3-YL)CYCLOPROPANESULFONAMIDE

Journal of Structural Chemistry - N-(2-methoxy-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridin-3-yl)cyclopropanesulfonamide is an organic intermediate with borate and sulfonamide groups,...     

基于扩展有限元法的颗粒增强复合材料静态及动态断裂行为研究

运用不含裂尖增强函数的扩展有限元法,分别研究了静态及动态载荷作用下颗粒增强复合材料的断裂行为.假定基体和颗粒都为线弹性材料并且绑定完好,研究了不同颗粒位置、数量对基体裂纹尖端断裂参数的影响.数值模拟结果清晰地显示了含刚性颗粒和柔性颗粒时不同的失效机制.结果同时证明论文采用的数值方法能够准确预报颗粒增强复合材料的断裂行为,也更易于被工程界所接受.     

A new method for solving Biot＇s consolidation of a finite soil layer in the cylindrical coordinate system

A new method is developed to solve Biot＇s consolidation of a finite soil layer in the cylindrical coordinate system. Based on the governing equations of Biot＇s consolidation and the technique of Laplace transform, Fourier expansions and Hankel transform with respect to time t, coordinate θ and coordinate r, respectively, a relationship of displacements, stresses, excess pore water pressure and flux is established between the ground surface （z = 0） and an arbitrary depth z in the Laplace and Hankel transform domain. By referring to proper boundary conditions of the finite soil layer, the solutions for displacements, stresses, excess pore water pressure and flux of any point in the transform domain can be obtained. The actual solutions in the physical domain can be acquired by inverting the Laplace and the Hankel transforms.     

《共同纲领》与新中国的不成文宪法（1949−1954）

统一战线与政治协商会议各有各的历史传统,它们是在1948−1949年新的政治协商会议筹备过程中逐步被认知并结合起来的,从而使得统一战线获得政治协商会议这种组织形式,而政治协商会议也因此获得了新的基础与性质。中国人民政治协商会议第一届全体会议具有双重属性,既作为统一战线的组织形式,又作为全国人民代表大会的临时代行机关,这种双重属性决定了“三大文件”不同的性质与功能。《政协组织法》和《共同纲领》本质上是党派间的政治合意,是政协作为统一战线组织形式的自我立法,《政府组织法》建构了中央人民政府,在内容上更接近于现代成文宪法,是政协第一届全体会议作为全国人民代表大会临时代行机关的政治决断。“三大文件”虽然具有不同的属性和功能,但共同构成中华人民共和国成立的法权基础,成为1949−1954年间中国的“不成文宪法”。     

Tributylstibine-mediated olefination of carbonyl compounds with bromomalonic ester and with dibromomalonic ester—A possible pathway through a stibonium ylide via halophilic initiation by tertiary stibines

Tributylstibine can mediate the olefination of carbonyl compounds with bromomalonic ester and with dibromomalonic ester. An initial halophilic attack of tributylstibine on the bromine of bromomalonic or dibromomalonic ester forming an ion pair of bromotributylstibonium cation and malonic (A) or bromomalonic ester carbanion (B) , respectively, is proposed. These ion pairs react with carbonyl compounds to achieve subsequent olefination. Alternatively, 2 equiv of A collapse, with elimination of malonic ester, to form stiborane D , and the ion pair B reacts with another equivalent of tributylstibine to form stiborane D. This last undergoes a Wittig-type reaction with carbonyl compound to achieve olefination.