Decoding the Morphological Diversity in Two Dimensional Crystalline Porous Polymers by Core Planarity Modulation. Issue 27 (8th March 2016)

• Record Type: Journal Article
• Authors: Halder, Arjun; Kandambeth, Sharath; Biswal, Bishnu P.; Kaur, Gagandeep; Roy, Neha Chaki; Addicoat, Matthew; Salunke, Jagadish K.; Banerjee, Subhrashis; Vanka, Kumar; Heine, Thomas; Verma, Sandeep; Banerjee, Rahul
• Is Part Of: Angewandte Chemie international edition. Volume 55:Issue 27(2016)
• Page Start: 7806
• Page End: 7810
• Publication Date: 2016-03-08
• Subjects: covalent organic frameworks -- density functional calculations -- dihedral angles -- morphology -- stacking interactions; Chemistry -- Periodicals; 540
• DOI: 10.1002/anie.201600087
• Languages: English
• ISSNs: 1433-7851

Abstract

Abstract: Two new chemically stable triazine‐ and phenyl‐core‐based crystalline porous polymers (CPPs) have been synthesized using a single‐step template‐free solvothermal route. Unique morphological diversities were observed for these CPPs [2, 3‐DhaTta (ribbon) and 2, 3‐DhaTab (hollow sphere)] by simply altering the linker planarity. A detailed time‐dependent study established a significant correlation between the molecular level structures of building blocks with the morphology of CPPs. Moreover, a DFT study was done for calculating the interlayer stacking energy, which revealed that the extent of stacking efficiency is responsible for governing the morphological diversity in these CPPs. Abstract : Two self‐templated, morphologically diverse (ribbon and hollow sphere) crystalline porous polymers (CPPs) are characterized. Surprisingly, these polymers reflect how a slight change in torsion angles of the linker core dramatically affects the overall crystallinity, surface area, and the final morphology in the CPPs.