Abstract A novel silica supported ferrocene appended N -heterocyclic carbene-palladium complex (SilFemBenzNHC@Pd) has been prepared and characterized by using fourier transform infrared (FT-IR), fourier transform Raman (FT-Raman), X-ray photoelectron spectroscopy (XPS), scanning electron microscopy (SEM), thermogravimetric analysis (TGA) and energy dispersive X-ray analysis (EDX). This novel complex served as a robust heterogeneous catalyst for the synthesis of biaryls via homocoupling of aryl boronic acids under base-free conditions in water. Recyclability experiments were executed successfully for six successive runs. Graphic Abstract

中文翻译：

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使用二氧化硅负载的二茂铁附加 N-杂环卡宾-钯配合物可持续合成联芳基化合物

摘要 采用傅里叶变换红外（FT-IR）、傅里叶变换拉曼（FT-Raman）、X射线光电子能谱（ XPS)、扫描电子显微镜 (SEM)、热重分析 (TGA) 和能量色散 X 射线分析 (EDX)。这种新型复合物可作为一种强大的多相催化剂，用于在水中无碱条件下通过芳基硼酸的均偶联合成联芳基化合物。连续六次运行成功地执行了可回收性实验。图形摘要