Enoch, S.Nipate, A.B.Lakshmi, V.Malakalapalli, R.R.2026-02-042023Chemical Communications, 2023, 59, 57, pp. 8846-884913597345https://doi.org/10.1039/d3cc01701jhttps://idr.nitk.ac.in/handle/123456789/21854Croconic acid, a novel highly electron-deficient building block, was introduced into a conjugated microporous polymer (CTPA). The CMP possesses strong donor-acceptor interactions, which resulted in near-IR absorption (red edge ∼1350 nm), a narrow bandgap (<1 eV) and high electrical conductivity upon doping (0.1 S m−1). Compared to the squaric acid congener (STPA), CTPA showed superior optical, electronic and electrical properties. © 2023 The Royal Society of Chemistry.Energy gapMicroporosityBuilding blockesConjugated microporous polymersDonor-acceptor interactionElectron-deficientHigh electrical conductivityNarrow bandgapNear-IR absorptionOptical electronicsRed edgeSquaric acidsConjugated polymerscroconic acidpolymerunclassified drugArticlechemical analysischemical structuredopingsynthesiselectric conductivityelectronElectric ConductivityElectronicsElectronsPolymers