在这项工作中,描述了席夫碱配体的两种新的定义明确的 Cu (I) 配合物。为此,N,N'-双(反式肉桂醛)乙二亚胺[C 20 H 20 N 2 ](L)和[CuC 20 H 20 N 2)PPh 3 Cl] (C1 )和 [Cu(C 20 H 20 N 2 )PPh 3 Br] (C2)被合成。IR、NMR、XRD 和 TGA 分析用于表征这些化合物,单晶 X 射线晶体学证实了化合物的结构。在叠氮化物-炔烃点击反应(AAC)中研究了合成配合物的催化活性,最佳反应条件为15 mol%催化剂、30 min和45°C的水中,可以认为该配合物具有中等催化活性。Material Studio 2017 软件用于通过量子计算(模块 DMol 3和 LDA/PWC)获得所有结构的几何、能量、HOMO 和 LUMO。计算结果表明催化剂C2比催化剂C1 具有更高的反应活性,并且C1-催化产物的形成速度比C2-催化产品例外
A shaped article of a crosslinked elastomer, having a crosslink density continuously decreased from the surface toward the interior at a specific gradient, and being characterized with excellent surface non-stickiness and low friction properties, while maintaining tensile strength, elongation and compression set resistant properties as well as elastomeric properties.
Synthesis, characterization, and crystal structures of [Ag(ca2en)(PPh3)(X)] (X = N3, SCN) complexes
作者:Mehdi Amirnasr、Aliakbar Dehno Khalaji、Larry R. Falvello、Tatiana Soler
DOI:10.1016/j.poly.2005.12.021
日期:2006.6
Two mixed ligand silver(l) complexes, [Ag(caen)(PPh3)(X)], where ca(2)en(1) = a bidentate Schiff base, X = N-3 (1) and SCN (2), have been synthesized and characterized by elemental analyses and H-1 NMR.IR and UV-Vis spectroscopy. The crystal and molecular structures of (1) and (2) were determined by X-ray crystallography. The coordination polyhedron around the silver(l) center in these complexes is best described as a distorted tetrahedron. The N-3 and SCN anions are coordinated to silver(l) as terminal ligands and, unlike its copper analogue, the SCN ligand is coordinated through the S atom in complex (2). (c) 2006 Elsevier Ltd. All rights reserved.
ACRYLIC RUBBER COMPOSITION AND VULCANIZATE
申请人:ZEON CORPORATION
公开号:EP1378539B1
公开(公告)日:2006-11-22
Acrylic rubber composition and vulcanizate
申请人:——
公开号:US20040110905A1
公开(公告)日:2004-06-10
An acrylic rubber composition comprising (A) 100 parts by weight of an acrylic rubber comprising (a) 90 to 99.9% by weight of acrylic acid ester monomer units, (b) 0.1 to 10% by weight of carboxyl group-containing ethylenically unsaturated monomer units, and (c) 0 to 20% by weight of other copolymerizable monomer units, (B) 0.05 to 2.5 parts by weight of a primary monoamine compound, and (C) 0.05 to 5 parts by weight of a polyamine vulcanizer. The rubber composition gives a vulcanizate which is used as sealing material, hose material, vibration insulator material, tube material, belt material and boot material.