Dielectric, fluorescence, filter, nano tribological and photoconductivity studies of 4-(4-chlorophenyl)-7,7-dimethyl-7,8-dihydro-4H-1-benzopyran-2,5(3H,6H)-dione (CPDMDHHBPHHD) macro and nano crystals

Abstract

The present investigation is focused on the macro and nanocrystals of 4-(4-chlorophenyl)-7,7-dimethyl-7,8-dihydro-4H-1-benzopyran-2,5(3H,6H)-dione (CPDMDHHBPHHD), its synthesis, and the various characterization and comparative studies performed to assess its applications. Nanocrystals were prepared by milling procedure and its evaluation and utility than macro-sized entitled crystals were thoroughly discussed. The single crystal XRD study reveals the macro-crystalline lattice parameters with the empirical formula as C 17 H 17 ClO 3 and a = 11.9005 Å, b = 5.7971 Å, c = 22.608 Å and β = 93.97°. The crystal system is monoclinic with space group P2 1 /n. The nanoform of entitled crystals specimen are of 16 nm of size. Characterization studies for macro-and nano-scaling such as dielectric, fluorescence (FL), photoconductivity, tribological study, and nano influx for filters were performed and reported. From the present study, it could be concluded that CPDM-DHHBPHHD crystals are known to be best for electronic filters, frequency doubling circuits, second harmonic generation (SHG) efficiency, and nano level influx value which is useful for opto-electronic applications.

Synthesis, physical, chemical, biological, mechanical and electronic studies of polypyrrole (PPy) of versatile scales for electro-mechano, pharmaceutical utilities

“…The effective role of PPy is tried for electronic filters as the influx in microns for the opto-electronic filters and is 3.7873; 3.7874; 3.7874; 3.7874; 3.7874 and 3.7875 corresponding to MR values as 0.5; 1.0; 1.5; 2.0; 2.5 and 3 respectively, showed no much variations as samples are not anisotropic and are amorphous in nature; so, as the MR values [ [39] , [40] , [41] , [42] , [43] ] are getting elevated in esteem and for filters used in optoelectronic type, minor variations are seen and are also in fourth decimal places. Furthermore, in the burglar alarm to enhance the efficiency of the system, PPy coated components are 1.12, 1.13, 1.13, 1.13, 1.13 and 1.16 times efficient than the uncoated ones and are reducing the noise level due to fine homogeneous particles [ [43] , [44] , [45] , [46] , [47] , [48] ]. The IC-741 type of voltage doubling circuital portfolio represents double the value for normal case and is 2.01; 2.03; 2.03; 2.03; 2.03; 2.03 times for the versatile scaling MR values and confirmed the doubling of voltage in circuits.…”

“…The IC-741 type of voltage doubling circuital portfolio represents double the value for normal case and is 2.01; 2.03; 2.03; 2.03; 2.03; 2.03 times for the versatile scaling MR values and confirmed the doubling of voltage in circuits. The mechanical representation of samples figuring out the proper projection of their hardness or softness and identifying it based on their value to tribological parameters and here, the hardness profile of MR as 0.5 is tried for Vicker's scale of 25, 50 and 100 g and their H V value in kg/mm 2 as 56.2; 68.6 and 97.9 and give rise to n as above 2 and is of Reverse Indentation Size Effect and other samples are in progress for analysis and are pelleted and analyzed [ [43] , [44] , [45] , [46] , [47] , [48] ]. The versatile method of the carbothermal way [ [49] , [50] , [51] , [52] , [53] ] is deliberately represented to proceed for PPy in the future with other typical studies [ 49 , [54] , [55] , [56] , [57] , [58] , [59] ].…”

“…The versatile method of the carbothermal way [ [49] , [50] , [51] , [52] , [53] ] is deliberately represented to proceed for PPy in the future with other typical studies [ 49 , [54] , [55] , [56] , [57] , [58] , [59] ]. The biological impacts for insulin deficiency altered by alpha-amylase inhibited concentration of PPy with various MR of versatile scales or % with IC-50 as 48.75; 48.75; 48.75; 48.75; 48.76 and 48.76 correspond to 0.5; 1.0; 1.5; 2.0; 2.5 and 3.0 MR leads to a better scope of activity against the ailment of diabetics and no change in data of IC-50 is observed and the uniformity is due to the amorphous type of nature of versatile MR esteem of 6 samples of PPys [ [43] , [44] , [45] , [46] , [47] , [48] ]. While performing for MR-0.5 Alpha Glucosidase based provision of IC-50 as 61.09 and is the slightly higher value than the former one.…”

Physio-chemical and biological Characterizations of 4 Bromo – 4'Chloro Benzylidene Aniline μ-crystals for Engineering Utilities

“…The electronic transition takes place in the specimen is properly identified with UV-vis spectrum by the absorbance data of 4B4CBA micro scaled one as in Fig. 3 and found that cut-off value is 389 nm and corresponding band gap by absorbance spectrum is 3.18 eV and the micro-photonic use of micro scaled 4B4CBA is analyzed as the 0-7 eV as hν data and (0-4*10 11 ) (αhν) 2 (cm −1 eV) 2 data in X and Y axis for the Tauc's classification of 4B4CBA plot as in Fig. 4 and found that it is 3.18 eV as the photonic band gap.…”

“…The NLO process needs materials that control the amplitude, optical beam frequency, phase and polarization. [2][3][4][5][6][7][8][9] Generally, most organic crystals possess their absorption in the visible blue region and some have their cutoff wavelength greater than 450 nm. This shows the possibility of a decrease in the conversion efficiency of the second harmonic generation (SHG) because of the self-absorption of the materials when using a semiconductor laser.…”