Porphyrin nanotubes based on a hydrogen-bonded organic framework

• DOI: 10.1039/d2nr02499c
• Publication Date: 2022-09-14T14:21:59Z
• Authors: Sumra Idrees; Zhikai Li; Fang Fang; Huowang He; Irfan Majeed; Yihuan Zhang; Atsuhiro Osuka; Yan Cao; Zhuo Zeng; Xiaopeng Li; Hua-Wei Jiang
• Keywords: Nanoring; Selected area diffraction

Tubular structures offer a wide variety of applications; therefore, designing such materials with distinct dimensions is highly desirable yet challenging. In the current report, we have demonstrated synthesis one-dimensional (1D) tubular assembly comprising porphyrin nanoring subunits. The (PNR) 2 bearing ester groups was synthesized via Pt-mediated cyclization and then hydrolyzed to obtain PNR 3 carboxylic groups. Under optimized conditions, nanotubes (PNTs) were formed through hydrogen bonding between 3. morphology investigated by both SEM TEM displayed well-defined arrays nanotube bundles up several micrometers long. Small crystals PNTs obtained heating solution in DMSO. High-resolution transmission electron microscopy (HR-TEM) accompanied selected-area diffraction (SAED) exhibited line diffractions d-spacing values 6.17, 3.08, 2.07, 1.57 Å. miller indices these could be assigned as 300, 600, 900, 1200, respectively, suggesting that an ordered structure 1D has been formed.