Evidence map›Paper›PMID 41021823›Full record

ArticleChemistry, an Asian journal2026

Impact of Substitution Position on the Excited-State Dynamics and Nonlinear Optical Properties of Tetraphenylethylene-Corroles.

Rahul Murali, Renikindi Sravani, Swathi Nenavath, Seelam Prasanthkumar, Venugopal Rao Soma, L Giribabu, Sai Santosh Kumar Raavi

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Article in Chemistry, an Asian journal, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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5 · Who and what money

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7 authors.

Rahul Murali *Ultrafast Photophysics and Photonics Laboratory, Department of Physics, Indian Institute of Technology Hyderabad, Kandi, Telangana, 502285, India.
Renikindi Sravani *Department of Polymers & Functional Materials, CSIR-Indian Institute of Chemical Technology, Tarnaka, Hyderabad, Telangana, 500007, India.
Swathi NenavathDepartment of Polymers & Functional Materials, CSIR-Indian Institute of Chemical Technology, Tarnaka, Hyderabad, Telangana, 500007, India.
Seelam PrasanthkumarDepartment of Polymers & Functional Materials, CSIR-Indian Institute of Chemical Technology, Tarnaka, Hyderabad, Telangana, 500007, India.
Venugopal Rao SomaSchool of Physics and DIA-CoE ( formerly ACRHEM), University of Hyderabad, Hyderabad, Telangana, 500046, India.ORCID https://orcid.org/0000-0001-5361-7256
L GiribabuDepartment of Polymers & Functional Materials, CSIR-Indian Institute of Chemical Technology, Tarnaka, Hyderabad, Telangana, 500007, India.
Sai Santosh Kumar RaaviUltrafast Photophysics and Photonics Laboratory, Department of Physics, Indian Institute of Technology Hyderabad, Kandi, Telangana, 502285, India.ORCID https://orcid.org/0000-0002-2496-9233

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Investigating the structure-property relationship in π-conjugated organic materials is crucial for designing efficient materials for diverse optoelectronic applications. Tailoring the molecular structure enables tuning the nonlinear optical (NLO) properties of π-conjugated systems. Herein, we report the synthesis, characterization, and photophysical properties of tetraphenylethylene (TPE)-substituted corroles in meso (meso-TPE-Cor) and beta position (β-TPE-Cor). The excited state dynamics, investigated using femtosecond transient absorption spectroscopy (fs-TAS) with excitation at the Soret band (400 nm), revealed an internal conversion in the 250-303 fs range, vibrational relaxation (VR) in 7.1-12.7 ps range, an intersystem crossing (ISC) in 0.94-1.05 ns range, and the triplet lifetime in 0.111-0.126 µs range. Comparatively, β-TPE-Cor exhibited faster ISC and VR than meso-TPE-Cor. Furthermore, the NLO properties of both the corroles were investigated using the femtosecond Z-scan technique. Both the corroles exhibited significantly strong NLO parameters, characterized by prominent three-photon absorption (3PA) coefficients (∼10

Indexed as

CorrolesExcited state dynamicsFemtosecond Z‐scanStructure–property relationshipThree‐photon absorption

Identifiers

PMID41021823
PMCPMC13394292

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