The synthesis, chemical and physical properties of silver(I) carboxylates and their use for joining of copper
作者:Peter Frenzel、Susann Hausner、Marcus Korb、Guntram Wagner、Heinrich Lang
DOI:10.1016/j.ica.2018.04.022
日期:2018.10
Abstract The synthesis of [AgO2CCR2OC(O)OMe] (6, R = H; 7, R = Me) by treatment of HO2CCR2OC(O)OMe (4, R = H; 5, R = Me) with [AgNO3] in presence of NEt3 is reported. The reaction of 6 and 7 with 2 equiv of PPh3 gave [AgO2CCR2OC(O)OMe(PPh3)2] (8, R = H; 9, R = Me). The thermal behavior of 6 and 7 was studied by TG, DSC and TG-MS of which the latter evinced decarboxylation as initial decomposition step
摘要用[AgNO3]处理HO2CCR2OC(O)OMe(4,R = H; 5,R = Me)合成[AgO2CCR2OC(O)OMe](6,R = H; 7,R = Me)。据报道存在NEt3。6和7与2当量的PPh3的反应得到[AgO2CCR2OC(O)OMe(PPh3)2](8,R = H; 9,R = Me)。通过TG,DSC和TG-MS研究了6和7的热行为,其中TG-MS表现出脱羧作用为初始分解步骤,随后发生Ag C,CC和CO键断裂,生成银。对于铜铜连接,将6和7与乙二醇(EG)或二甘醇(DEG)混合,制成可涂抹的糊剂。在7-EG与Cu片接触时,形成[Cu2(O2CCMe2OC(O)OMe)4·2H2O](12)。因此,在250°C下仅使用6-EG和6-DEG进行Cu的无压连接。通过添加Ag µm颗粒,可实现19 MPa的拉伸剪切强度,与商业化的Ag纳米糊相比,具有更高的价值。通过