Recently added

Synthesis and Properties of BODIPY Appended Tetraphenylethylene Scaffolds as Photoactive Arrays

Grover, Nitika (Wiley, 2021-07)

Tetraphenylethylene (TPE) and its derivatives exhibit excellent aggregation-induced emission (AIE) properties. The TPE unit is easily accessible, and many functional groups can be introduced in a facile manner to yield ...

Cover Feature: An Insight into Non-Covalent Interactions on the Bicyclo[1.1.1]pentane Scaffold

Grover, Nitika (Wiley, 2021-02)

The Cover Feature shows artist Ella Marushenko′s view of the docking between an iodinated bicyclo(1.1.1)pentane (BCP) derivative and 1,4-diazabicyclo[2.2.2]octane (DABCO). It illustrates noncovalent interactions of the BCP ...

Enantioselective Discrimination of Histidine by Means of an Achiral Cubane-Bridged Bis-Porphyrin

Grover, Nitika (ACS, 2021-11)

A Langmuir film of cubane-bridged bisporphyrin (H2por-cubane-H2por) at the air/water interface was developed and characterized. The floating film was successfully employed for the chiral discrimination between l- and ...

Facile synthesis of porphyrin-conjugates as amphiphilic modified photosensitizer structures of m-THPP bearing carbamate, carboxylate and sulfonate linkers

Grover, Nitika (World Scientific, 2022)

5,10,15,20-Tetrakis(3-hydroxyphenyl)porphyrin (m-THPP) bearing various nitrogen and sulfur containing heterocycles, aromatic, aliphatic and alicyclic residues covalently linked to the oxygen atom of the meta-hydroxy group ...

Fundamental electronic changes upon intersystem crossing in large aromatic photosensitizers: free base 5,10,15,20-tetrakis(4-carboxylatophenyl)porphyrin

Grover, Nitika (RSC, 2022)

Free base 5,10,15,20-tetrakis(4-carboxylatophenyl)porphyrin stands for the class of powerful porphyrin photosensitizers for singlet oxygen generation and light-harvesting. The atomic level selectivity of dynamic UV pump – ...

Nonplanar porphyrins: synthesis, properties, and unique functionalities

Grover, Nitika (RSC, 2022)

Porphyrins are variously substituted tetrapyrrolic macrocycles, with wide-ranging biological and chemical applications derived from metal chelation in the core and the 18π aromatic surface. Under suitable conditions, the ...

On-Surface Synthesis of Polyphenylene Wires Comprising Rigid Aliphatic Bicyclo[1.1.1]Pentane Isolator Units

Grover, Nitika (Wiley, 2023-03)

Bicyclo[1.1.1]pentane (BCP) motifs are of growing importance to the pharmaceutical industry as sp3-rich bioisosteres of benzene rings and as molecular building blocks in materials science. Herein we explore the behavior ...

Bicyclo[1.1.1]pentane Embedded in Porphyrinoids

Grover, Nitika (Wiley, 2023-03)

We report a two-step approach to obtain synthetically versatile bicyclo[1.1.1]pentane (BCP) derivatives using Grignard reagents. This method allows the incorporation of BCP units in tetrapyrrolic macrocycles and the synthesis ...

Deciphering the Photophysical Role of Conjugated Diyne in Butadiynyl Fluorophores: Synthesis, Photophysical and Theoretical Study

Pati, Avik K. (ACS, 2013-07)

The present work focuses on the current interest in diyne bridged chromophores necessitating a clearer understanding of the photophysics of such molecules. The significance of the diyne moiety in the photophysics has been ...

Photoinduced solid state keto–enol tautomerization of 2-(2-(3-nitrophenyl)-4,5-diphenyl-1H-imidazol-1-yloxy)-1-phenylethanone

Pati, Avik K. (RSC, 2014)

Excited state intramolecular proton transfer (ESIPT) plays an important role in biological systems and has also recently found applications in electronic devices such as transducers, switches etc. In this paper we report ...

Substituted diphenyl butadiynes: a computational study of geometries and electronic transitions using DFT/TD-DFT

Pati, Avik K. (RSC, 2014)

This work is aimed at theoretical understanding of electronic absorption and emission energies of a series of substituted diphenyl butadiynes through an assessment of several TDDFT functionals and a detailed study of solvent ...

Meta Effect of Absorption Energy in Donor–Acceptor Substituted Benzenoids: A Computational Study of Its Dependence on Acceptor Strength, Solvent Polarity, and Conjugation Length

Pati, Avik K. (ACS, 2014-08)

The present work focuses on theoretical understanding of electronic absorption energies of N,N-dimethylaniline with different ortho-, meta-, and para-substituted acceptor groups. The meta isomers exhibit the lowest absorption ...

On the photophysics of butadiyne bridged pyrene–phenyl molecular conjugates: multiple emissive pathways through locally excited, intramolecular charge transfer and excimer states

Pati, Avik K. (RSC, 2015-01)

The present work describes the photophysical properties of a group of butadiyne bridged pyrene–phenyl molecular hybrids having different substitutions with varying donor and acceptor abilities. In addition to emission from ...

Contrasting Solid-State Fluorescence of Diynes with Small and Large Aryl Substituents: Crystal Packing Dependence and Stimuli-Responsive Fluorescence Switching

Pati, Avik K. (ACS, 2015-09)

There has been a significant current interest in solid state luminescence of organic molecules and their stimuli responsive fluorescence switching behavior. Although small organic derivatives with olefinic, acetylenic, ...

Photophysics of Diphenylbutadiynes in Water, Acetonitrile–Water, and Acetonitrile Solvent Systems: Application to Single Component White Light Emission

Pati, Avik K. (ACS, 2016-07)

Diacetylenes have been the subject of current research because of their interesting optoelectronic properties. Herein, we report that substituted diphenylbutadiynes exhibit locally excited (LE) and excimer emissions in ...

White Light Emission in Butadiyne Bridged Pyrene–Phenyl Hybrid Fluorophore: Understanding the Photophysical Importance of Diyne Spacer and Utilizing the Excited-State Photophysics for Vapor Detection

Pati, Avik K. (ACS, 2016-07)

Generation of white light emission (WLE) from a single organic fluorophore is challenging because of the need to get fluorescence covering the visible region (400–700 nm) upon excitation of the dye at near-ultraviolet ...

Fluorescent 1-Arylidene-1,3-dihydroisobenzofuran: Ligand-Free Palladium Nanoparticles, Catalyzed Domino Synthesis and Photophysical Studies

Pati, Avik K. (Wiley, 2017-07)

The present work describes synthesis and photophysical studies of a class of fluorophores containing biologically relevant 1,3-dihydroisobenzofuran scaffold. Ligand-free palladium nanoparticles have been utilized for domino ...

Photophysics and peripheral ring size dependent aggregate emission of cross-conjugated enediynes: applications to white light emission and vapor sensing

Pati, Avik K. (RSC, 2018)

Photophysical understanding of organic fluorophores with π-conjugated scaffolds is crucial as such dyes are central to optoelectronic applications. This work presents a detailed photophysical investigation of a class of ...

Photoinduced intramolecular charge transfer in a cross-conjugated push–pull enediyne: implications toward photoreaction

Pati, Avik K. (RSC, 2018)

Push–pull organic fluorophores are important owing to their interesting optoelectronical properties. Here we report the photophysics of a new cross-conjugated push–pull enediynyl dye which belongs to an unexplored class ...

Small push-pull diacetylenes as emergent fluorophores

Pati, Avik K. (AIP, 2018-08)

Organic fluorophores containing acetylene spacers have gained significant current interest because of their wide-spread applications in optoelectronics. In this present review, we summarize our recent photophysical ...

Recently added

Department of Chemistry: Recent submissions

Search DSpace

Browse

All of DSpace

This Collection

My Account