Synergistic and Antagonistic Ligand Effects in the Transformation of Silver Compounds of Keto‐ and Cyano‐Functionalised Oximates and Nitronates: A Systematic Study Using Thermal Analysis
Synergistic and Antagonistic Ligand Effects in the Transformation of Silver Compounds of Keto‐ and Cyano‐Functionalised Oximates and Nitronates: A Systematic Study Using Thermal Analysis
复制标题
酮基和氰基官能化肟酸盐和硝酸盐银化合物转化中的协同和拮抗配体效应：利用热分析的系统研究
DOI：
10.1002/ejic.201500704
复制
发表时间：
2015
影响因子：
2.3
通讯作者：
J. J. Schneider
中科院分区：
文献类型：
--
作者：
R. Hoffmann;J. J. Schneider
分子银化合物是用于从溶液沉积银膜的目标前体分子。本文首次系统地研究了丙二腈、氰基乙酰胺、氰基乙酸甲酯的硝基和亚硝基衍生物以及硝基乙酰胺和硝基乙酸甲酯的银配合物的热分解。通过红外光谱法或质谱法对释放的气体进行的分析表明，分子内氧化还原反应对反应机理有显著影响，特别是硝基和亚硝基官能团与酰胺基和酯基的相互作用。所研究的带有氰基的配体通常导致氰化银的中间体形成，由此金属银仅在较高温度下形成。然而，硝基乙酰胺和硝基乙酸甲酯的银络合物在低于200 °C的温度下分解成金属银。玻璃基板上的银薄膜可以通过旋涂这些前体和随后的退火来合成。更高的转化温度导致更均匀的表面覆盖和更低的膜粗糙度。
Molecular silver compounds are target precursor molecules for the deposition of silver films from solution. The thermal decomposition of silver complexes of nitro and nitroso derivatives of malononitrile, cyanoacetamide and methyl cyanoacetate as well as with nitroacetamide and methyl nitroacetate was investigated for the first time in a systematic manner. The analysis of the evolving gases by means of infrared spectroscopy or mass spectrometry revealed that intramolecular redox reactions had a significant impact on the reaction mechanism, in particular the interactions of the nitro and nitroso functionalities with amido and ester groups. The studied ligands bearing cyano groups typically lead to the intermediary formation of silver cyanide, whereby metallic silver is formed only at higher temperatures. Silver complexes of nitroacetamide and methyl nitroacetate, however, undergo decomposition to metallic silver at temperatures already below 200 °C. Thin films of silver on glass substrates could be synthesised by spincoating of these precursors and subsequent annealing. Higher conversion temperatures lead to more uniform surface coverage and lower film roughness.
影响因子：
2.1
作者：
S. Jahn;A. Jakob;T. Blaudeck;P. Schmidt;H. Lang;R. Baumann
通讯作者：
S. Jahn;A. Jakob;T. Blaudeck;P. Schmidt;H. Lang;R. Baumann
影响因子：
8.6
作者：
Jahn, Stephan F.;Blaudeck, Thomas;Schmidt, Peer
通讯作者：
Schmidt, Peer