Article
Chemistry, Multidisciplinary
Arindam Mukhopadhyay, Swati Jindal, Vijay Kumar Maka, Jarugu Narasimha Moorthy
Summary: The study explores the impact of N-heteroaryl rings on the spectrokinetic properties of photogenerated o-quinonoid colored reactive intermediates in pyridyl- and pyrimidylethynylated benzopyrans. It reveals that the modification of photochromic behaviors and spectrokinetic properties in the presence of acid is influenced by the relative proton affinities of N-heteroaryl rings and resonance effects relayed through the ethynyl spacers. This research demonstrates the unique opportunity to modulate both photochromic and acidochromic properties of benzopyrans by leveraging N-heteroaromatic rings.
Article
Chemistry, Inorganic & Nuclear
Swati Jindal, Jarugu Narasimha Moorthy
Summary: In this study, a novel class of linkers with zwitterionic characteristics, similar to naturally occurring amino acids, was used to construct functional MOFs. The resulting MOF, Zn-DMBI, demonstrated unique properties and the ability to interact with guest species through electrostatic interactions. By exfoliating the material into zwitterionic 2D metal-organic nanosheets (MONs), a palatable fluorescence was observed. Furthermore, the suspension of luminescent MONs (LMONs) in methanol enabled selective sensing of anions, with a particular focus on dihydrogen phosphate.
INORGANIC CHEMISTRY
(2022)
Article
Chemistry, Multidisciplinary
Soumen Payra, Navin Yadav, Jarugu Narasimha Moorthy
Summary: This study investigated the reaction pathways of aryl olefins and thiols in the presence of Oxone in different solvent systems, revealing two distinct reaction pathways leading to the synthesis of two different products.
NEW JOURNAL OF CHEMISTRY
(2022)
Article
Chemistry, Multidisciplinary
Kanyashree Jana, Jarugu Narasimha Moorthy
Summary: The spatial disposition of three benzene rings in triptycene allows for 'homoconjugation', a contentious issue in the literature. Through the design and synthesis of a diagnostic photochromic molecular system, the persistence of a photogenerated colored o-quinonoid intermediate supports the operation of homoconjugation.
NEW JOURNAL OF CHEMISTRY
(2022)
Article
Chemistry, Organic
Keshaba N. Parida, Jarugu Narasimha Moorthy
Summary: This article introduces the development of improved IBX with enhanced solubility and reactivity in organic solvents. The design principles to eliminate the explosive attributes by manipulating the structure of IBX are discussed. A convenient oxidative transformation method using Oxone (R) catalyst is presented, and the applications of improved IBX in efficient oxidations are summarized.
Article
Chemistry, Multidisciplinary
Parag Tamuly, Farasha Sama, Jarugu Narasimha Moorthy
Summary: A layered metal-organic framework (MOF), Cd-BPDP, was synthesized using a metal-assisted self-assembly method. The MOF was then exfoliated into porous 2D metal-organic nanosheets (MONs) through ultrasonication and mechanical grinding techniques. The resulting MONs showed significant iodine capture ability, attributed to the increased surface area, charge-transfer complex formation, and reinforced binding of iodine through charge transfer.
ADVANCED MATERIALS INTERFACES
(2022)
Article
Chemistry, Organic
Navin Yadav, Soumen Payra, Jarugu Narasimha Moorthy
Summary: A metal-free and green iodine-catalyzed protocol is described for the synthesis of unsymmetrical thiosulfonates. The reactions occur at room temperature and provide good-to-excellent yields of the desired products.
ASIAN JOURNAL OF ORGANIC CHEMISTRY
(2022)
Article
Nanoscience & Nanotechnology
Chetna Yadav, Ajay Kumar Sahoo, Jarugu Narasimha Moorthy
Summary: In this study, two porous organic polymers (POPs) were synthesized and used to stabilize metal nanoparticles. By embedding metal nanoparticles into the POPs, recyclable catalysts were achieved, and it was also demonstrated that the POPs exhibited high selectivity for adsorbing clean fuel, hydrogen gas.
ACS APPLIED NANO MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Kanyashree Jana, Jarugu Narasimha Moorthy
Summary: Regioisomeric naphthopyrans annulated with triptycene, Prox-NP and Dist-NP, exhibit different photochromic behaviors. Prox-NP produces a stable colored intermediate, Prox-NPQ, while Dist-NP does not. The rigid triptycene scaffold of Prox-NP leads to higher constraint and stability.
CHEMISTRY-A EUROPEAN JOURNAL
(2023)
Article
Chemistry, Organic
Kanyashree Jana, Debarghya Sarkar, Preeti Jaiswal, Jarugu Narasimha Moorthy
Summary: A set of donor-acceptor azahelical coumarins (DA-AHCs) with high fluorosolvatochromic shifts and high quantum yields in solution and solid states were designed and synthesized. The excited-state properties of these compounds were investigated, revealing the contribution of intramolecular charge transfer and crystal packing to their emission behaviors. The analysis showed that strengthened hydrogen bonding promoted quenching, efficient crystal packing promoted high emission, and loose crystal packing contributed to excited-state deactivation.
JOURNAL OF ORGANIC CHEMISTRY
(2023)
Article
Chemistry, Organic
Navin Yadav, Sushil Ranjan Bhatta, Jarugu Narasimha Moorthy
Summary: This study demonstrates a visible light-mediated synthesis of hetero-arenes (isoquinolines, benzothiazoles, and quinazolines) through the use of isocyanides and inexpensive acyl peroxides. It is the first time that singlet-excited isocyanides have been shown to decompose acyl peroxides into aryl/alkyl radicals. The resulting radicals attack isocyanides, leading to the formation of imidoyl radicals which subsequently cyclize to generate heteroarene products. The protocol eliminates the need for external photocatalysts, oxidants, additives, and bases.
JOURNAL OF ORGANIC CHEMISTRY
(2023)
Article
Chemistry, Physical
Alka Karn, Chetna Yadav, Ajay Kumar Sahoo, Jarugu Narasimha Moorthy
Summary: A porous organic polymer (POP) with carboxylic acid functionalities, known as Carboxy-POP, has been developed for efficient heterogeneous catalytic reactions. The catalyst exhibits high catalytic activity, easy operation, high yields, short reaction times, and good recyclability.
Article
Chemistry, Organic
Navin Yadav, Soumen Payra, Parag Tamuly, Jarugu Narasimha Moorthy
Summary: In this study, the synthesis of beta-hydroxysulfones instead of beta-ketosulfones was selectively demonstrated using dye-sensitized photocatalysis. The reaction utilized inexpensive and readily available olefins and sulfonyl hydrazides/N-hydroxy sulfonamides in the presence of oxygen. It was found that the hydroxysulfonylation reaction, which employed rose bengal as a photocatalyst and dioxygen as an oxidant, selectively produced secondary and tertiary beta-hydroxysulfones in good yields. The formation of beta-hydroxysulfones and beta-ketosulfones was shown to proceed through different routes depending on the concentration of oxygen.
ORGANIC & BIOMOLECULAR CHEMISTRY
(2023)
Article
Chemistry, Multidisciplinary
Swati Jindal, Gulshan Anjum, Vijay Kumar Maka, Jarugu Narasimha Moorthy
Summary: A water-stable In-MOF with a conformationally-flexible tetraacid linker exhibited significantly enhanced solid-state fluorescence quantum yield due to rigidification by metalation. Grinding of the In-MOF led to a drastic enhancement in fluorescence intensity, correlated with particle size reduction and particle aggregation. The study also demonstrated the sensing capability of metal ions by suspended In-MOF particles in water, showing both mechanoluminescence and aggregation-enhanced emission of MOF particles for the first time.
Article
Nanoscience & Nanotechnology
Swati Jindal, Vijay Kumar Maka, Gulshan Anjum, Jarugu Narasimha Moorthy
Summary: A fluorescent 4-connecting bisimidazole-tetraacid linker was designed to access a metal-organic layered material with enhanced fluorescence in its 2D metal-organic framework nanosheets generated by solvent-assisted exfoliation. The suspension of 2D MONs serves as an efficient turn-on fluorescent material for sensing of the toxic nerve agent mimics, with a detection limit of approximately 0.52 ppm for diethyl chlorophosphate.
ACS APPLIED NANO MATERIALS
(2021)
