Functional free-tetraphenylporphyrin (TPP) molecule was prepared by simple one-step method and subsequently zinc ion was introduced in the cavities of TPP (Zn-TPP). The prepared functional free Zn-TPP was grafted by covalent bonding of zinc with amine functionality present on the internal surface of organo-functionalised mesoporous SBA-15 molecular sieves through axial position. The resultant material was completely characterised using various analytical and spectroscopic techniques including Fourier-transform infrared spectroscopy (FT-IR), ultraviolet–visible spectroscopy, proton nuclear magnetic resonance, X-ray powder diffraction, thermo-gravimetry–differential thermal analysis, ¹³C magic-angle spinning nuclear magnetic resonance (MAS-NMR), N₂ physisorption studies, scanning electron microscopy (SEM) and transmission electron microscopy (TEM) techniques. The presence of organo-functionality and Zn-TPP on the surface was confirmed by conducting ¹³C MAS-NMR and FT-IR studies. Often, zinc containing functional porphyrin derivatives have shown as potential biological, luminescent properties, whereas in the present studies the functional free Zn-TPP and heterogenised functional-free Zn-TPP materials (SBA-15-AM-Zn-TPP) explored for the first time as catalytic materials for nitroaldol condensation under varying reaction conditions. The present functional free Zn-TPP has an advantage of ease on preparation and strong interaction on the surface linker through axial position, which made it a potential catalyst for aldol condensation and exhibit promising catalytic activity.

通过简单的一步法制备功能性游离四苯基卟啉（TPP）分子，然后将锌离子引入TPP（Zn-TPP）的腔中。通过使锌与存在于有机官能化介孔SBA-15分子筛内表面上的胺官能团通过轴向位置共价键合而接枝所制备的游离官能Zn-TPP。使用各种分析和光谱技术，包括傅立叶变换红外光谱（FT-IR），紫外可见光谱，质子核磁共振，X射线粉末衍射，热重分析-差热分析，¹³ C魔角旋转核磁共振（MAS-NMR），N ₂物理吸附研究，扫描电子显微镜（SEM）和透射电子显微镜（TEM）技术。通过进行¹³确认了表面上有机官能团和Zn-TPP的存在C MAS-NMR和FT-IR研究。通常，含锌的功能性卟啉衍生物已显示出潜在的生物学发光特性，而在本研究中，探索了无功能的Zn-TPP和杂化的无功能的Zn-TPP材料（SBA-15-AM-Zn-TPP）。在不同的反应条件下首次用作硝基醛缩合的催化材料。本发明的游离锌-TPP具有易于制备和通过轴向位置在表面连接基上的强相互作用的优点，这使其成为醛醇缩合的潜在催化剂并显示出有希望的催化活性。