The application of V(V) catalysts in oxidation of sulfides with peroxides offers an efficient procedure, that is compatible with different functional groups, and leads to good yields and selectivities. However, the understanding of the factorsaffecting the reactivity of different catalysts is still far to be complete. An experimental and theoretical study on a series of V(V) complexes containing variously
Synthesis, crystal structures, photoluminescence, electrochemistry and DFT study of aluminium(III) and gallium(III) complexes containing a novel tetradentate Schiff base ligand
作者:James Charles Truscott、Jeanet Conradie、Hendrik C. Swart、Mart-Marie Duvenhage、Hendrik Gideon Visser
DOI:10.1107/s2053229619008805
日期:2019.8.1
[Ga(C22H18N2O4)(H2O)2]NO3·C2H5OH, 2, were obtained after successful synthesis in ethanol. Both complexes crystallized in the triclinic space group P, with two molecules in the asymmetric unit. In both structures, in one of the independent molecules the tetradentateligand is almost planar while in the other independent molecule the ligand shows significant distortions from planarity, as illustrated by
的6,6的铝和镓复合物的单晶' - (1 Ë,1' ë) - [1,2-亚苯基双(azanylylidene)]双(methanylylidene)}双(2-甲氧基苯酚),即二水(6 ,6' - (1- Ë,1' ë) - [1,2-亚苯基双(azanylylidene)]双(methanylylidene)}双(2- methoxyphenolato)-κ 4 Ô 1,ñ,ñ ',Ô 1' )硝酸铝(III)乙醇单溶剂化物,[Al(C 22 H 18 N 2 O 4)(H 2 O)2 ] NO 3 ·C 2 H 5 OH,1和二水(6,6' - (1- Ë,1' ë) - [1,2-亚苯基双(azanylylidene)]双(methanylylidene)}双(2- methoxyphenolato)-κ 4 Ô 1,Ñ,Ñ ' ,Ô 1' )镓(III),硝酸乙醇单溶剂,[镓(C
LIGHT-EMITTING DEVICE
申请人:Takasago International Corporation
公开号:EP1630217A1
公开(公告)日:2006-03-01
A light-emitting device such as an organic electroluminescent device is disclosed wherein a platinum complex represented by the following general formula:
(wherein, rings A and B each independently represent an aromatic ring optionally having substituent (s) or an aromatic heterocyclic ring optionally having substituent (s) ; X represents an oxygen atom or a sulfur atom; R1, R2, R3and R4 each independently represent a hydrogen atom or a substituent; and more, R1 and R2, R2 and R3, and R3 and R4 may respectively combine together to form a fused ring.) is used as a light-emitting layer material, a charge transporting material or the like.
Aqueous coating composition including the reaction product of maleic anhydride with an unsaturated compound and an amine.
申请人:Akzo Nobel Coatings International B.V.
公开号:EP2719731A1
公开(公告)日:2014-04-16
An aqueous coating composition comprising
a. a binder polymer
b. a maleimide compound having sufficient acid groups such that the acid value of the maleimide compound is at least 30mg KOH/g of the maleimide compound.
一种水性涂料组合物,包括
a. 粘合剂聚合物
b. 马来酰亚胺化合物,该马来酰亚胺化合物具有足够的酸性基团,使马来酰亚胺化合物的酸值至少为 30mg KOH/g。
Salen−Manganese Complexes as Catalytic Scavengers of Hydrogen Peroxide and Cytoprotective Agents: Structure−Activity Relationship Studies
作者:Susan R. Doctrow、Karl Huffman、Catherine Bucay Marcus、Georges Tocco、Evelyne Malfroy、Christy A. Adinolfi、Henry Kruk、Keith Baker、Natalie Lazarowych、Julius Mascarenhas、Bernard Malfroy
DOI:10.1021/jm020207y
日期:2002.9.1
Synthetic catalytic scavengers of reactive oxygen species (ROS) may have broad clinical applicability. In previous papers, two salen-manganese complexes, EUK-8 and EUK-134, had superoxide dismutase (SOD) and catalase activities and prevented ROS-associated tissue injury. This study describes two series of salen-manganese complexes, comparing catalytic ROS scavenging properties and cytoprotective activities. The compounds vary widely in ability to scavenge hydrogen peroxide, with this activity most influenced by salen ring alkoxy subsitution and aromatic bridge modifications. In contrast, all compounds show comparable SOD activities. The most active alkoxy-substituted catalase mimetics protected cultured cells from hydrogen peroxide, and a subset of these were also neuroprotective in a rodent stroke model. Thus, structural modification of the prototype EUK-8 yields compounds with enhanced catalase activity and, in turn, biological effectiveness. This supports the concept that salen-manganese complexes represent a class of SOD and, in particular, catalase mimetics potentially useful against ROS-associated diseases.