Ashwene Rajagopal

ORCID: 0000-0003-1541-7290
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About
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Research Areas
  • Crystallization and Solubility Studies
  • X-ray Diffraction in Crystallography
  • Advanced Photocatalysis Techniques
  • Electrocatalysts for Energy Conversion
  • Perovskite Materials and Applications
  • Metalloenzymes and iron-sulfur proteins
  • Crystallography and molecular interactions
  • Advanced Nanomaterials in Catalysis
  • Luminescence and Fluorescent Materials
  • Catalysis and Hydrodesulfurization Studies
  • Polyoxometalates: Synthesis and Applications
  • Nanocluster Synthesis and Applications
  • Diabetic Foot Ulcer Assessment and Management
  • CO2 Reduction Techniques and Catalysts
  • Nanoplatforms for cancer theranostics
  • Wound Healing and Treatments
  • Copper-based nanomaterials and applications
  • Chalcogenide Semiconductor Thin Films
  • Gas Sensing Nanomaterials and Sensors
  • Analytical Chemistry and Sensors
  • Photodynamic Therapy Research Studies
  • Organoboron and organosilicon chemistry
  • Oxidative Organic Chemistry Reactions
  • Radical Photochemical Reactions
  • biodegradable polymer synthesis and properties

Royal College of Surgeons in Ireland
2020-2023

Beaumont Hospital
2020-2023

Dublin City University
2020-2022

Universität Ulm
2018-2022

Institute of Inorganic Chemistry of the Slovak Academy of Sciences
2018

Pondicherry University
2014

The first example of molecular lanthanide tungstate clusters for photochemical and electrochemical hydrogen evolution catalysis is reported.

10.1039/c8cc06334f article EN Chemical Communications 2018-01-01

Recent results concerning molecular molybdenum sulfido clusters as model systems for heterogeneous hydrogen evolution catalysis by sulfides are summarized and also compared to the related chemistry of active site enzyme Mo-nitrogenase.

10.1039/c8se00155c article EN Sustainable Energy & Fuels 2018-01-01

The first example of light driven, homogeneous hydrogen evolution reactivity a molecular molybdenum sulfide is presented together with experimental and theoretical insights into the reasons for unusually high activity.

10.1039/c7se00599g article EN Sustainable Energy & Fuels 2018-01-01

Achieving light-driven splitting of water with high efficiency remains a challenging task on the way to solar fuel exploration. In this work, combine advantages heterogeneous and homogeneous photosystems, we covalently anchor noble-metal- carbon-free thiomolybdate [Mo3S13]2- clusters onto photoactive metal oxide supports act as molecular co-catalysts for photocatalytic splitting. We demonstrate that strong surface-limited binding surfaces takes place. The attachment involves loss majority...

10.1021/acscatal.2c00972 article EN cc-by ACS Catalysis 2022-05-20

The first example of light driven, homogeneous hydrogen evolution reactivity by the smallest thiomolybdate cluster [Mo<sub>2</sub>S<sub>12</sub>]<sup>2−</sup> is reported together with initial insights into catalytic and deactivation mechanism.

10.1039/c8se00346g article EN Sustainable Energy & Fuels 2018-10-30

The integration of molecular photosensitizers and catalysts into functional soft matter supports holds great promise for future energy conversion technologies.

10.1039/d0ta01059f article EN Journal of Materials Chemistry A 2020-01-01

Abstract In this work, we present a new synthetic strategy for fourfold‐substituted perylene monoimides via tetrabrominated monoanhydrides. X‐ray diffraction analysis unveiled the intramolecular stacking orientation between substituents and semicircular packing behavior. We observed remarkable influence of substituent on longevity nature excited state upon visible light excitation. presence poly(dehydroalanine)‐graft‐poly(ethylene glycol) graft copolymers as solubilizing template,...

10.1002/chem.202004326 article EN cc-by-nc-nd Chemistry - A European Journal 2020-11-25

A series of aluminium complexes supported by amidinate-based N,O-chelate ligands are synthesized and characterized. While [L(Dipp)AlMe2] () [L(Ph)AlMe2] prepared treating N-benzoyl-N'-2,6-diisopropylphenylbenzamidine (L(Dipp)H) N-benzoyl-N'-phenylbenzamidine (L(Ph)H) with a slight excess 1 equiv. AlMe3, [(L(Dipp))2AlMe] [(L(Ph))3Al] can be obtained using the AlMe3 in 2 : 3 molar ratios respectively. Complexes have been characterized (1)H/(13)C NMR spectroscopy elemental analysis. The...

10.1039/c4dt02026j article EN Dalton Transactions 2014-08-12

The unique optical and photoredox properties of heptazine-based polymeric carbon nitride (PCN) materials make them promising semiconductors for driving various productive photocatalytic conversions. However, their typical absorption onset at ca. 430-450 nm is still far from optimum efficient sunlight harvesting. Despite many reports successful attempts to extend the light range PCNs, determination structural features responsible red shift edge beyond 450 has often been obstructed by highly...

10.1002/chem.202102945 article EN cc-by Chemistry - A European Journal 2021-09-29

We report the synthesis and photophysical properties of a neutral BODIPY photosensitizing copolymer (poly-8-(4-hydroxymethylphenyl)-4,4-difluoro-2,6-diethynyl-4-bora-3a,4a-diaza-s-indacene) containing ethynylbenzene links between units. The absorbs further towards red in UV-vis spectrum compared to precursor. Photolysis polymer produces singlet excited state which crosses triplet surface less than 300 ps. This was used form oxygen with quantum yield 0.34. steps leading population were...

10.1021/acs.jpcb.0c09634 article EN cc-by The Journal of Physical Chemistry B 2021-02-04

Solar hydrogen evolution from water is a necessary step to overcome the challenges of rising energy demand and associated environmental concerns. Low-cost photocatalytic architectures based on polymeric light absorbers coupled highly efficient molecular catalysts might represent an attractive platform address this issue. However, to-date, our mechanistic knowledge these systems still largely underdeveloped. In study, molybdenum sulfide evolving catalyst, [Mo 3 S 13 ] 2– , loaded onto carbon...

10.26434/chemrxiv.12941741.v1 preprint EN cc-by-nc-nd 2020-09-11

Solar hydrogen evolution from water is a necessary step to overcome the challenges of rising energy demand and associated environmental concerns. Low-cost photocatalytic architectures based on polymeric light absorbers coupled highly efficient molecular catalysts might represent an attractive platform address this issue. However, to-date, our mechanistic knowledge these systems still largely underdeveloped. In study, molybdenum sulfide evolving catalyst, [Mo 3 S 13 ] 2– , loaded onto carbon...

10.26434/chemrxiv.12941741.v2 preprint EN cc-by-nc-nd 2020-10-05

Solar hydrogen evolution from water is a necessary step to overcome the challenges of rising energy demand and associated environmental concerns. Low-cost photocatalytic architectures based on polymeric light absorbers coupled highly efficient molecular catalysts might represent an attractive platform address this issue. However, to-date, our mechanistic knowledge these systems still largely underdeveloped. In study, molybdenum sulfide evolving catalyst,...

10.26434/chemrxiv.12941741 preprint EN cc-by-nc-nd 2020-09-11
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