Related Experiment Video
Updated: Jul 7, 2026

Thermocapillary Convection Space Experiment on the SJ-10 Recoverable Satellite
Published on: March 11, 2020
Face reverse degree topological analysis of TP-COFs, existence of isentropic COFs and spectral characteristics
Thirsha Rajendran1, Micheal Arockiaraj2, Arul Jeya Shalini3
1Department of Mathematics, Loyola College, University of Madras, Chennai, India.
Abstract:
The recent synthesis of triple-pore covalent organic frameworks (TP-COFs), specifically TP-COF-DAB and TP-COF-BZ, represents a significant milestone in framework chemistry, as replicating such multi-pore architectures remains highly challenging. Despite their structural novelty, the mathematical perspective of their topology and associated properties is still limited. In this study, closed-form expressions are derived for reverse degree topological indices of these TP-COFs based on a bitrapezium topological arrangements. Scaled face reverse degree indices are employed to explicitly characterize pore geometry in triple-pore architectures. Furthermore, reverse degree based entropy measures are computed to quantify structural orderness and to explore isentropic configurations within the TP-COF family. Using these structural parameters, quantitative structure-property models are constructed for spectral energy, demonstrating strong predictive capability. In addition, the spectral diameter and HOMO-LUMO gap are analyzed using graph spectral techniques, providing insights into the spectral characteristics of TP-COFs.
Related Concept Videos
Torsion in Vector Calculus
Reynolds Transport Theorem
Region of Convergence of Laplace Tarnsform
Consider a decaying exponential signal that begins at a specific time. When deriving its Laplace transform, the time-domain variable is replaced with a complex variable. This substitution...
Path Between Thermodynamics States
Discrete-Time Fourier Series
For a discrete-time periodic signal x[n]...
Cyclic Processes And Isolated Systems
In the case of a non-isolated system, the change in the internal energy is zero only if the process is cyclic. A thermodynamic process is considered cyclic if the system undergoes a series of changes and returns to its initial state.
Consider a cyclic process that returns to its initial state, undergoing a four-step process. The heat transfer along each path...

