Abstract:Thiazolopyrimidnes are considered one of the most interesting classes in heterocyclic chemistry due to their pharmaceutical importance. Herein, we report the synthesis of some new heterocyclic compounds containing thiazolopyrimidine starting from compound (1) which was previously prepared in literature. The starting compound was allowed to react with different alkylating agents such as chloroacetone, chloroacetyl chloride, and phenacyl bromide to afford derivatives (2-4). Compound (5), benzylidene derivative, … Show more
“…The high bioaccumulation abilities of (Chlorophyta) Green and (cyanophyta) blue-green Algae for metals selecting are illustrated by the result acquired in Table 5 and Table 6 and Figure 7. work confirms the previous data that clarifies the importance of scientific research in nature (Ahmed et al, 2022;Abdel-Raheem et al, 2021a, 2021c, 2021dTolba et al, 2021aTolba et al, , 2021bAbdel-Raheem et al, 2020;Bakhite et al, 2017;Kamal El-Dean et al, 2019a, 2019bTolba et al, 2022aTolba et al, , 2022bAbdelhafeez et al, 2022;Abdelhamid et al, 2021;Elhady et al, 2022;Kaid et al, 2022;Mohamed et al, 2022;Abd-Ella et al, 2022;Gad et al, 2021;Al-Taifi et al, 2016;Bakhite et al, 2014;Fouad et al, 2023).…”
People who are involved in managing wastewater treatment face the challenge of achieving conservation goals with limited funds, and also of balancing needs for nature conservation. This context has been motivated with finding logic explanations of wastewater treatment by oxidation ponds. Description of progressive we have made with developing methods is for understanding how, when and where had done to apply the oxidation ponds for protecting biodiversity. The Rashid oxidation pond facility was highlighted as a model plant for utilizing this technology in wastewater treatment in the city of Rashid, El-Beheira Governorate, Egypt. The main concept is based on the interaction of chemical pollutants NO 2 , NO 3 , BOD 5 -in, and BOD 5 -out and heavy metals with microorganisms as Chlorophyta Green and cyanophyta, and how these oxidation ponds imitate the Continuous Chemical Reactor (CSTR) to build its core architecture for maximum usefulness. By applying the theoretical equation of (CSTR) on the experimental results of the oxidation pond according to Thirumurthi equation, it was discovered that (CSTR) and oxidation pond are matching together with a satisfactory ratio of congruence (85% -88%). Also, the heavy metals as (iron, Zinc and copper) are high percentage removal by the algae rules. This investigation established that the oxidation ponds may function as a Continuous Chemical Reactor under ultimate conditions and precautions.
“…The high bioaccumulation abilities of (Chlorophyta) Green and (cyanophyta) blue-green Algae for metals selecting are illustrated by the result acquired in Table 5 and Table 6 and Figure 7. work confirms the previous data that clarifies the importance of scientific research in nature (Ahmed et al, 2022;Abdel-Raheem et al, 2021a, 2021c, 2021dTolba et al, 2021aTolba et al, , 2021bAbdel-Raheem et al, 2020;Bakhite et al, 2017;Kamal El-Dean et al, 2019a, 2019bTolba et al, 2022aTolba et al, , 2022bAbdelhafeez et al, 2022;Abdelhamid et al, 2021;Elhady et al, 2022;Kaid et al, 2022;Mohamed et al, 2022;Abd-Ella et al, 2022;Gad et al, 2021;Al-Taifi et al, 2016;Bakhite et al, 2014;Fouad et al, 2023).…”
People who are involved in managing wastewater treatment face the challenge of achieving conservation goals with limited funds, and also of balancing needs for nature conservation. This context has been motivated with finding logic explanations of wastewater treatment by oxidation ponds. Description of progressive we have made with developing methods is for understanding how, when and where had done to apply the oxidation ponds for protecting biodiversity. The Rashid oxidation pond facility was highlighted as a model plant for utilizing this technology in wastewater treatment in the city of Rashid, El-Beheira Governorate, Egypt. The main concept is based on the interaction of chemical pollutants NO 2 , NO 3 , BOD 5 -in, and BOD 5 -out and heavy metals with microorganisms as Chlorophyta Green and cyanophyta, and how these oxidation ponds imitate the Continuous Chemical Reactor (CSTR) to build its core architecture for maximum usefulness. By applying the theoretical equation of (CSTR) on the experimental results of the oxidation pond according to Thirumurthi equation, it was discovered that (CSTR) and oxidation pond are matching together with a satisfactory ratio of congruence (85% -88%). Also, the heavy metals as (iron, Zinc and copper) are high percentage removal by the algae rules. This investigation established that the oxidation ponds may function as a Continuous Chemical Reactor under ultimate conditions and precautions.
“…The studied compound [ThiPy-3,8-Dc] , with the chemical structure and three dimensions shown in Fig. 1 , was synthesized and purified according to the literature 28 . Figure 1 The chemical structure and 3D of the fabricated organic compound ThiPy-3,8-Dc.…”
Section: Experimental Tools and Measurementsmentioning
We present here the FT-IR, DFT computation, XRD, optical, and photophysical characterization of a heterocyclic compound with thienopyrimidine and pyran moieties. TD-DFT/DMOl3 and TD-DFT/CASTEP computations were used to study the geometry of isolated and dimer molecules and their optical behavior. The indirect (3.93 eV) and direct (3.29 eV) optical energy bandgaps, HOMO–LUMO energy gap (3.02 eV), and wavelength of maximum absorption (353 nm) were determined in the gas phase with M062X/6-31+G (d, p). A thin film of the studied molecule was studied using XRD, FT-IR, and UV–Vis spectroscopy. The average crystallite size was found as 74.95 nm. Also, the photoluminescence spectroscopy revealed that the compound exhibited different emission bands at the visible range with different intensities depending on the degree of molecular aggregation. For instance, solutions with different concentrations emitted blue, cyan, and green light. On the other hand, the solid-state material produced a dual emission with comparable intensities at λmax = 455, 505, and 621 nm to cover the entire visible range and produce white emission from a single material with CIE coordinates of (0.34, 0.32) that are very similar to the ideal pure white light. Consequently, these findings could lead to the development of more attractive new luminous materials.
“…As a response to the challenges outlined above in addition to what we have already accomplished, − we present here a synthetic strategy for several novel indole–pyrimidine hybrids. Some substances’ photophysical characteristics in solid and solution forms were investigated.…”
Heterocyclic compounds
with effective solid-state luminescence
offer a wide range of uses. It has been observed that combining pyrimidine
and indole moieties in a single molecule can enhance material behavior
dramatically. Here, different heterocyclic compounds with indole and
pyrimidine moieties have been synthesized effectively, and their structures
have been validated using NMR, IR, and mass spectroscopy. The photoluminescence
behavior of two substances was investigated in powder form and solutions
of varying concentrations. After aggregation, one molecule displayed
a redshifted luminescence spectrum, whereas another homolog showed
a blueshift. Thus, density functional theory calculations were carried
out to establish that introducing a terminal group allows modifying
of the luminescence behavior by altering the molecular packing. Because
of the non-planarity, intermolecular interactions, and tiny intermolecular
distances within the dimers, the materials demonstrated a good emission
quantum yield (Φ
em
) in the solid state (ex. 25.6%).
At high temperatures, the compounds also demonstrated a stable emission
characteristic.
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