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Articles by Chandran Muthuselvi
Total Records ( 7 ) for Chandran Muthuselvi
  Chandran Muthuselvi , Arulanandam Shagaya Princy and Sankara Sabapathy Pandiarajan
  Background and Objective: The crystal structure of title compound (4-Carboxyanilinium Dihydrogen Phosphate) was already reported. But in the best of the knowledge, there is no report on spectroscopy and antimicrobial activity studies of this compound. So objective of study was to grow the 4-carboxyanilinium dihydrogen phosphate complex crystal from slow evaporation technique and characterized by single crystal XRD, powder XRD, FTIR, FT-Raman, UV-Visible spectroscopy, SEM with EDX and antimicrobial activity studies. Materials and Methods: The title crystal (4-Carboxyanilinium Dihydrogen Phosphate Semi-Organic Complex Crystal) was obtained by slow evaporation technique from the aqueous ethanol solution of 4-aminobenzoic acid and orthophosphoric acid in 1:1 stoichiometric ratio. In this crystal growth process, 4-aminobenzoic acid, orthophosphoric acid, ethanol and deionized water were used as the raw materials which were purchased from Sigma Aldrich Company, India. Results: The crystal lattice parameters and space group was obtained from the single crystal XRD study. The powder X-ray diffraction peaks were indexed using the INDX software. The FTIR and FT-Raman spectra of 4-carboxyanilinium dihydrogen phosphate crystal have been recorded at room temperature. The spectra were interpreted in terms of these wavenumber assignments. The optical band gap was determined from the UV-Visible spectroscopy analysis. Also, the morphology and antimicrobial activity studies were performed on the title crystal. Conclusion: The title crystal has monoclinic crystal system with the space group P21/n. The average crystalline size is found to be as 54 nm. Further, the presence of functional groups and elements were verified using FTIR and FT-Raman spectroscopy and energy dispersive X-ray studies. The SEM analysis shows that the complex crystal has smooth surface and flower like morphology. The optical band gap is determined as 3.8 eV. The antimicrobial activity study shows that the complex crystal screened the bacteria than that of the parent crystal. This modified chemical structure may improve the solubility and reduce the toxicity of drug compound.
  Chandran Muthuselvi , Murugesan Pandeeswari and Sankara Sabapathy Pandiarajan
  Objective: The main objective of the present work was to grow 4-carboxyanilinium nitrate C7H8NO2+. NO3‾ semi-organic crystal by slow evaporation method and analyzed by various techniques. The positively charged carboxyanilinium cation and nitrate anion were existing in this crystal structure. Materials and Methods: 4-aminobenzoic acid, nitric acid, ethanol and deionized water were used in the crystal growth process as the raw materials. The semi-organic crystal of 4-carboxyanilinium nitrate is crystallized from the aqueous ethanol solution of 4-aminobenzoic acid mixed with aqueous solution of nitric acid in 2:1 stoichiometric ratio by slow evaporation technique. Results: The crystal lattice parameters and space group was obtained from the single crystal XRD study. The powder X-ray diffraction peaks were indexed using the INDX software. The FTIR and FT-Raman spectra of 4-carboxyanilinium nitrate crystal had been recorded at room temperature. The spectra were interpreted in terms of the wavenumber assignments. The SEM analysis shows that the complex crystal has smooth surface and well defined shape morphology. The optical band gap was determined from the UV-Visible spectroscopy analysis. Conclusion: The unit cell parameters and space group were estimated by single crystal X-ray diffraction technique. The average crystalline size of grown crystal is found to be as 72 nm. Further, the presence of functional groups and elements were verified using FTIR and FT-Raman spectroscopy and energy dispersive X-ray studies. Also, the optical band gap of title crystal is determined as 3.90 eV. The grown crystals were involved in an antibacterial activity against certain potentially threatening microbes which shows that the complex crystal screened the bacteria than that of the parent crystal.
  Chandran Muthuselvi , Sankara Sabapathy Pandiarajan , Bhagatsingh Ravikumar , Shunmuganarayanan Athimoolam and Rajaputi Venkatraman Krishnakumar
  Background and Objective: The crystal structure of 7’-Nitro-6’-phenyl-1’,6’,7’,7a’-tetrahydro-spiro[indeno[1,2-b]quinoxaline-11,5’-pyrrolo[1,2-c][1,3]thiazole](NPTSIPT) crystal was recently reported by authors group. The main objective of the present study was to analyze the vibrational spectra of title compound. So it was crystallized by slow evaporation method and characterized by the single crystal XRD, FT-IR, FT-Raman and UV-Visible spectroscopy analysis. Materials and Methods: The raw materials used for this crystallization are benzene-1, 2-diamine, 1H-indene-1, 2, 3-trione, thiazolidine-4-carboxylic acid, methanol, chloroform and trans-β-nitro styrene which were purchased from Sigma Aldrich Company through local scientific companies in Tamil Nadu, India. The crystals were obtained by the slow evaporation method using the chloroform as a solvent. Results: Using X-ray diffractometer, the unit cell parameters and space group of title crystal was obtained. The FT-IR and FT-Raman spectroscopic techniques have been used to identify the vibrational modes of compound. The optical property was analyzed by UV-Visible spectroscopy. Conclusion: The single crystal XRD study revealed that the title compound belongs to triclinic crystal system with centro symmetric space group P1̄. The vibrational spectra have been investigated by FT-IR, FT- Raman spectroscopic techniques to elucidate the various functional groups present in the molecule. The optical property was analyzed by UV-Visible spectroscopy which showed that the grown crystal has high transparency in the entire visible region. Due to the wide variety of biomedical applications in biological and pharmaceutical fields, the modified quinoxaline structure of title compound is considered for study in this present research.
  Chandran Muthuselvi , Sankara Sabapathy Pandiarajan , Bagathsingh Ravikumar , Shunmuganarayanan Athimoolam and Rajaputi Venkatraman Krishnakumar
  Background and Objective: Quinoxaline derivatives shown antibacterial, antiviral and anticancer properties which have received considerable interest due to their biological properties. Thus the halogen substituted indeno quinoxaline derivative hetero cyclic compound of 6’-(3-bromo phenyl)-7’-nitro-1’, 6’, 7’, 7a’-tetrahydro-3’ H-spiro[indeno[1, 2-b]quinoxaline-11, 5’-pyrrolo[1,2-c]thiazole] (BPNTSIPT) has been crystallized by slow evaporation method and characterized by FT-IR, FT-Raman and UV-Visible spectroscopy analyzes. Materials and Methods: Colourless block shaped crystals were obtained from slow evaporation method by recrystallization of synthesized compound with ethanolic solution. Benzene-1, 2-diamine, 1H-indene-1, 2, 3-trione, thiazolidine-4-carboxylic acid, methanol, chloroform and trans-β-bromo nitrostyrenes are the raw materials used for this crystallization. Results: The complete vibrational FT-IR and FT-Raman spectra were interpreted in terms of functional group wavenumbers. The optical property of the title compound was analyzed by UV-Visible spectroscopy study. The crystal has the maximum absorbance peaks at 267, 347 and 369 nm. Conclusion: The FT-IR and FT-Raman spectra were studied and the functional group assignments of title compound have been seen to be in good agreement with the corresponding results in the literature. The title crystal has 4.3 eV optical band gap, this showed that it is a predictable dielectric material. Due to the wide variety of biomedical applications of modified quinoxaline structure in biological and pharmaceutical fields, it was taken to study and analyzed in this present work.
  Chandran Muthuselvi , Sankara Sabapathy Pandiarajan , Bhagatsingh Ravikumar , Shunmuganarayanan Athimoolam , Navaneethakrishnan Srinivasan and Rajaputi Venkatraman Krishnakumar
  Background and Objective: The single crystal of ethyl 6'-cyano-7'-phenyl-1',6',7',7a' tetrahydro-3'H-spiro[indeno[1,2-b] quinoxaline-11,5'-pyrrolo [1,2-c] thiazole-6'-carboxylate (ECPTSIPTC) was crystallized by slow evaporation method after synthesis of compound. The main objective of the present study was to analyze complete vibration spectra of ECPTSIPTC compound through the FT-IR and FT-Raman techniques. Materials and Methods: Indeno quinoxaline, thioproline, ethyl cyano acetate, benzaldehyde, ethyl acetate and chloroform were used to grow the single crystal of title compound which were purchased from Sigma Aldrich company through local scientific companies in Tamil Nadu, India. The slow evaporation technique was employed to grow needle shaped ECPTSIPTC crystal using the chloroform as a solvent. Results: The vibrational spectra were recorded at room temperature using the FT-IR and FT-Raman spectrometers in the wavelength range 4000-400 cm–1. The optical property was performed by double beam spectrophotometer in the wavelength range 200-1100 nm. Conclusion: The FT-IR, FT-Raman vibrational spectral studies confirmed the various functional groups present in the title compound. The optical property of the title compound shows that the grown crystal has high transparency in the entire visible region and the energy gap was found to as 4.8 eV. Due to the wide applications of title compound in biological and pharmaceutical fields, it was considered for study in this present work.
  Chandran Muthuselvi , Sankara Sabapathy Pandiarajan , Bhagatsingh Ravikumar , Shunmuganarayanan Athimoolam , Navaneethakrishnan Srinivasan and Rajaputi Venkatraman Krishnakumar
  Background and Objective: The indeno quinoxaline pyrrolothiazole derivative crystal of ethyl 6'-cyano-7'-(p-tolyl)-1',5a,6’,7',7a',9a-hexa hydro-3'H-spiro [indeno [1,2-b]quinoxaline-11,5'-pyrrolo[1,2-c] thiazole]-6'-carboxylate (ECPTHSIPTC) was crystallized from slow evaporation method at room temperature. The grown crystal was characterized by the FT-IR, FT-Raman and UV-Visible spectroscopy techniques. The complete vibrational spectra of various functional groups wavenumber assignment for title crystal were interpreted in the present work. Materials and Methods: Ethyl cyano acetate, thioproline, benzaldehyde, indeno quinoxaline, ethyl acetate and chloroform were the raw materials used to synthesis the title compound. The synthesized compound was recrystallized from chloroform solution by the slow evaporation method. Results: FT-IR and FT-Raman spectrometers were used to record the vibrational spectra of title crystal at room temperature in the wavenumber range 4000- 400 cm1. The optical property was performed by double beam spectrophotometer in the wavelength range 200−1100 nm. Conclusion: The both spectroscopy studies confirmed the various functional groups present in the title compound. The UV-Visible spectroscopy study showed that the grown crystal has high transparency in the entire visible region and the optical band gap was found as 3.25 eV. The ECPTHSIPTC crystal was taking into account to study and investigated in this present work due to the wide-ranging applications in biological and pharmaceutical fields.
  Chandran Muthuselvi , Natarajan Rathika and Kumar Selvalakshmi
  Background and Objective: The glycine compound with inorganic acid play an extensive roles in the nonlinear optical applications. The main objective of the present work was to observe the growth and characterization of the title crystal using single crystal XRD, PXRD, FT-IR and FT-Raman, UV-Visible spectroscopy, SEM with EDX and antimicrobial activity studies. Materials and Methods: Glycine, perchloric acid and deionized water used for the crystallization, the single crystals were obtained at room temperature and the antimicrobial activity of title crystal was observed against 5 different kinds of micro-organisms. Results: The crystal system, lattice parameters and space group were determined and are found to be in good agreement with the already reported values. The crystalline nature and various functional groups present in the crystal were analyzed. The optical band gap was determined as 5.4 eV and morphology with the elemental analysis have been performed. The antimicrobial activity was established against the 5 different micro-organisms. Conclusion: The title compound belongs to triclinic crystal system with the space group P. The FT-IR, FT- Raman spectroscopic techniques elucidate the several functional groups present in the molecule. The UV-visible spectroscopy study revealed that the grown crystal has high transparency in the entire visible region. The morphology and elemental analysis have also been performed. The antibacterial activity does not appear against the PAO-1, MRSA, S.epi, C.Vio and S.Mar micro-organisms.
 
 
 
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