A Comprehensive Study on Solar Power Plant at Educational Institute Level [42-49]
Author: P. V. Ramana, B. Sudheerprem Kumar, D. Maheswar
Online Modern Philosophy for Stability Detection Based on Critical Energy of Individual Machines [50-57]
Author: Wagdy M. MANSOUR, Mohamed A. ALI, Nader SH. ABDELHAKEEM
Implementing Behavior Prediction using Frequent Pattern Tree using Data Mining Technique in Smart Home [58-61]
Author: Ms. Sonam Sheikh, Prof. Vaidehi Baporikar
Artificial Neural Network Approach to Distribution Transformers Maintenance [62-70]
Author: Uhunmwangho Roland, Omorogiuwa Eseosa
A Comprehensive Review Of Schiff Base Transition Metal Complexes: Synthetic Strategies, Structural Insights, And Biological Applications
Authors: Niranjan Kumar Mandal, Ranjan Kumar
Abstract: Schiff base transition metal complexes have emerged as a pivotal class of compounds in coordination chemistry due to their structural diversity, facile synthesis, and broad-spectrum biological activities. This review critically compiles and analyzes literature from 2000 to 2013, emphasizing synthetic methodologies, coordination behavior, and characterization techniques of Schiff base ligands and their complexes with transition metals. Particular attention is given to their promising applications in antimicrobial, antioxidant, anticancer, and catalytic domains. The role of the azomethine (-C=N-) functional group in ligand-metal binding and its impact on physicochemical properties is discussed in detail. Advances in understanding structure-activity relationships highlight how metal ion identity and ligand substituents influence bioactivity and selectivity. Challenges such as limited substrate scope and stability issues are also addressed, alongside prospects for future research involving novel Schiff base frameworks and sustainable synthesis routes. This comprehensive overview serves as an essential resource for scientists exploring Schiff base complexes in bioinorganic and medicinal chemistry.
DOI: https://doi.org/10.5281/zenodo.17157634
A Review On Schiff Base Metal Complexes: Synthesis, Characterization, And Applications
Authors: Ranjan Kumar, Niranjan Kumar Mandal
Abstract: Schiff base metal complexes have garnered significant attention in coordination chemistry due to their diverse structural features, catalytic properties, and biological activities. These complexes, synthesized via the condensation of primary amines with carbonyl compounds (e.g., salicylaldehyde, acetylacetone), form stable chelates with transition metals (e.g., Cu(II), Ni(II), Co(II), Zn(II)), exhibiting a wide range of coordination geometries (e.g., square planar, tetrahedral, octahedral). Their structural adaptability allows for tailored electronic environments, making them excellent candidates for catalytic processes such as asymmetric synthesis, C–C coupling, and oxidation reactions. Additionally, their interactions with biological macromolecules (e.g., DNA, proteins) have spurred interest in their use as antimicrobial, anticancer, and diagnostic agents. This review highlights the synthesis (e.g., template methods, solvent-free routes), characterization techniques (e.g., UV-Vis, IR, XRD, EPR), and applications of Schiff base metal complexes, emphasizing their relevance in medicinal chemistry (e.g., bioinorganic drug design), catalysis (e.g., industrial and green chemistry), and material science (e.g., luminescent materials, MOFs). By consolidating key findings from the literature before 2014, this work provides a comprehensive understanding of these versatile compounds, identifying gaps in current knowledge and suggesting future research avenues for optimizing their functional utility.
DOI: https://doi.org/10.5281/zenodo.17157735
Mathematics And Astronomy In Ancient India: Contributions Of Aryabhata And Successors
Authors: Dr. Prahlad Singh
Abstract: Ancient Indian mathematics and astronomy evolved as part of a tightly linked scholarly tradition wherein numbers, geometry, trigonometry, calendars, and planetary astronomy were practiced and theorized simultaneously rather than as distinct and separate activities. In such an intellectual environment, Aryabhata, whose Aryabhatiya was written around 499 CE, emerged as the pivotal classical scholar. He provided not only mathematical formulas but also geometrical facts, sine values, solutions to indeterminate equations, models for planetary motion, theories of eclipses, and the remarkable proposition that the observed daily rotation of the stars is due to the rotation of the Earth. But what made Aryabhata influential was more than just his own contributions, since other Indian mathematicians and astronomers such as Bhaskara I, Brahmagupta, Lalla, and Bhaskara II preserved, disputed, modified, and elaborated on his teachings, resulting in one of the most impressive pre-modern mathematical astronomical traditions found anywhere in the world. This paper contends that the accomplishments of Aryabhata and the Indian tradition based on his work can be considered an important scholarly tradition in which mathematics worked for astronomy, astronomy inspired mathematics, and the practice of commentary was a powerful force of innovation.
DOI: https://doi.org/10.5281/zenodo.20049527