https://dspace.iiti.ac.in:8080/jspui/handle/123456789/9537 2026-05-12T17:06:27Z https://dspace.iiti.ac.in:8080/jspui/handle/123456789/18107 Title: Harnessing the potential of sulfamidyl radical in photocatalytic synthesis of organosilanes and organogermanes Authors: Bajya, Kalu Ram Abstract: The focus of this thesis is to harness the potential of sulfamidyl radical for the functionalization of Si-H/Ge-H bonds of hydrosilanes/hydrogermanes through hydrogen atom transfer for the photocatalytic synthesis of organosilicon and organogermanium compounds. Firstly, the sulfamidyl radical was generated under visible light-assisted photocatalytic reductive quenching condition by using simple sulfonamide as a precursor for sulfamidyl radical and achieved selective functionalization of Si-H/Ge-H bond over C-H bond of hydrosilanes/hydrogermanes. Moreover, sulfonamides are readily accessible from inexpensive and commercially available sulfonyl chlorides and amines, rendering them cost-effective HAT catalyst. The steric and electronic properties of sulfonamide can be systematically tuned, enabling optimal matching with the varying bond dissociation energies of the Si-H and Ge-H bond of hydrosilanes and hydrogermanes respectively. In addition, a complementary protocol was also developed for the generation of sulfamidyl radical under photocatalytic oxidative quenching condition using N-aminopyridinium salt, enabling the synthesis of organosilicon and organogermanium compounds. 2026-04-09T00:00:00Z https://dspace.iiti.ac.in:8080/jspui/handle/123456789/18092 Title: Exploring nucleotides as low molecular weight gelators to fabricate supramolecular multifunctional hydrogels for versatile applications [RESTRICTED THESIS-01 Year] Authors: Agarwal, Vidhi Abstract: [Abstract is restricted for 01 Year, due to IPR related issue] 2026-03-11T00:00:00Z https://dspace.iiti.ac.in:8080/jspui/handle/123456789/17958 Title: Machine learning driven high-throughput discovery of battery electrodes and electrolytes Authors: Manna, Souvik Abstract: As global energy demand rises, the shift from fossil fuels to renewables like solar, wind, and hydro has become essential.[1] However, the intermittent nature of these sources poses challenges for consistent energy supply.[2] Rechargeable batteries play a vital role in addressing this gap, enabling energy storage and controlled release.[3] Lithium-ion batteries (LIBs) currently dominate due to their high energy density and long cycle life, but concerns over lithium scarcity, safety, cost, and environmental impact are driving the search for alternative battery chemistries.[4, 5] Potassium-ion (K-ion), sodium-ion (Na-ion), magnesium-ion (Mg-ion), calcium-ion (Ca-ion), and aluminum-ion (Al-ion) batteries have attracted significant attention as potential successors to LIBs, owing to the earth-abundance and favourable electrochemical properties of these elements.[6] Nevertheless, the successful deployment of such systems hinges on the rational design of battery components such as electrodes, electrolytes, and interfaces that are both chemically compatible and electrochemically stable. In this regard, a fundamental scientific bottleneck persists: the discovery and optimization of materials for diverse battery chemistries remain heavily reliant on resource-intensive trial-and-error experimental protocols and high-cost quantum mechanical simulations.[7] 2026-01-30T00:00:00Z https://dspace.iiti.ac.in:8080/jspui/handle/123456789/17608 Title: Four, three and two coordinated Cu(I) complexes and their applications as electrochromic materials Authors: Kharabe, Laxman Sarjerao Abstract: Over the past few decades, due to rapid population growth, the demand for optoelectronic devices has increased steadily. A crucial way to address the existing issue of the energy crisis is to figure out ways to conserve and reuse the same. The significant advancements have been achieved in the development of optoelectronic devices, driven by progress in materials science. The Cu(I) complexes have shown promising potential to substitute the traditional heavy transition metal complexes. Copper is earth-abundant, inexpensive, and capable of forming diverse coordination environments, ranging from tetrahedral, trigonal planar to linear geometries [1–4]. Additionally, the synthesis of Cu(I) complexes has been extensively explored due to their intriguing photophysical properties, such as tunable emission, high photoluminescence quantum yields and lifetimes, long-lived excited states, and less shelf quenching effects due to d10 electronic configuration [5–7]. Predominantly, these properties of Cu(I) complexes are subjected to extensive investigation owing to their real-world application in organic light-emitting diodes (OLEDs), light-emitting electrochemical cells (LEECs), biological sensors, catalysis in organic transformations, etc. [8,9]. 2025-12-29T00:00:00Z