Fixation of both O2 and CO2 from air by a crystalline palladium complex bearing N-heterocyclic carbene ligands.
Fixation of both O2 and CO2 from air by a crystalline palladium complex bearing N-heterocyclic carbene ligands.
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DOI：
10.1021/ja051054h
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发表时间：
2005-04
影响因子：
15
通讯作者：
M. Yamashita;K. Goto;T. Kawashima
中科院分区：
文献类型：
--
作者：
M. Yamashita;K. Goto;T. Kawashima
带有新的N-杂环卡宾配体ITmt的双配位钯（0）配合物1的晶体直接且快速地固定空气中的O2和CO2以产生相应的过碳酸钯（II）配合物2。本反应由钯（0）络合物1的二氧化成钯（II）过氧络合物3和随后的CO2插入以产生过氧碳酸酯络合物2组成。通过显微红外光谱监测1的晶体与空气的反应，以确认两步固态反应的顺序。固体1对空气的独特反应性解释的卡宾配体，ITmt的结构特征。
Crystals of the two-coordinate palladium(0) complex 1 bearing the new N-heterocyclic carbene ligand, ITmt, directly and rapidly fixed both O2 and CO2 from air to produce the corresponding palladium(II) peroxocarbonate complex 2. The present reaction consists of dioxygenation of the palladium(0) complex 1 to the palladium(II) peroxo complex 3 and the subsequent CO2 insertion to produce the peroxocarbonate complex 2. Reaction of the crystals of 1 with air was monitored by microscopic IR spectroscopy to confirm the sequence of the two-step solid-state reaction. The unique reactivity of solid 1 toward air was explained in terms of the structural features of the carbene ligand, ITmt.