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Journal articles on the topic 'Carbonato de Guanidina'

Author: Grafiati

Published: 4 June 2025

Last updated: 1 August 2025

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1

Carolina, Pfaff, González Douglas, Brito Joaquín, Gómez Luisana, and Díaz Yraida. "Síntesis y evaluación HDS de nitruros mixtos de níquel y vanadio usando carbonato de guanidina como acomplejante." Catálisis 8 (January 1, 2019): 19–23. https://doi.org/10.5281/zenodo.4016376.

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Se sintetizaron nitruros de vanadio y níquel, a partir de Complejos Metal-Orgánicos por la interacción con carbonato de guanidina ([C(NH2)3]2CO3) por el método de Reacción a Temperatura Programada empleando 100mL/min de amoniaco o nitrógeno a 500750°C; y posteriormente pasivados a temperatura ambiente con una mezcla oxígeno/argón (1% molar).  Se caracterizaron por: Difracción de Rayos X, Análisis Químico Elemental, Microscopía Electrónica de Barrido y Área Específica, evidenciando

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2

Carolina, Pfaff, González Douglas, Rico Emily, Brito Joaquín, and Díaz Yraida. "Preparación y evaluación catalítica en hidrodesulfuración de nitruros mixtos de cobalto y vanadio usando carbonato de guanidina como acomplejante." Catálisis 8 (January 1, 2019): 15–18. https://doi.org/10.5281/zenodo.4016362.

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Se sintetizaron nitruros de vanadio y cobalto, a partir de Complejos Metal-Orgánicos por la interacción con carbonato de guanidina ([C(NH2)3]2CO3) por el método de Reacción a Temperatura Programada empleando 100mL/min de amoniaco o nitrógeno a 500-800°C; y posteriormente pasivados a temperatura ambiente con una mezcla oxígeno/argón (1% molar).  Se caracterizaron por: Difracción de Rayos X, Análisis Químico Elemental, Microscopía Electrónica de Barrido y Área Específica, evidenciando forma

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3

Tiritiris, Ioannis, Jochen Mezger, Edmont V. Stoyanov та Willi Kantlehner. "Orthoamide und Iminiumsalze, LXXI [1]. Zur Fixierung von Kohlendioxid mit organischen Basen (Teil 2) – Reaktionen von Guanidinen und ω-Aminoalkyl-guanidinen mit Kohlendioxid/ Orthoamides and IminiumSalts, LXXI [1]. Capturing of Carbon Dioxidewith OrganicBases (Part 2) – Reactions of Guanidines and ω-Aminoalkyl-guanidines with Carbon Dioxide". Zeitschrift für Naturforschung B 66, № 4 (2011): 407–18. http://dx.doi.org/10.1515/znb-2011-0411.

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The guanidines 1, 4, 6, 8, 10, and 12 react with carbon dioxide in the presence of traces of water to give the guanidinium hydrogen carbonates 3, 5, 7, 9, 11, and 13. The crystal structures of the salts reveal the presence of centrosymmetric hydrogen carbonate ion dimers, which are connected by O-H・・・O hydrogen bonds. Additionally the cations are associated with the anions via N-H・・・O hydrogen bonds. The reaction of the N-(aminoalkyl)guanidine 14 with CO2 in the presence of traces of water affords a stable hygroscopic carbamic acid as the hydrogen carbonate salt 15. In the crystal structur

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4

Mihara, Masatoshi, Kaname Moroga, Tetsuo Iwasawa, et al. "Selective Synthesis of Carbonates from Glycerol, CO2, and Alkyl Halides Using tert-Butyltetramethylguanidine." Synlett 29, no. 13 (2018): 1759–64. http://dx.doi.org/10.1055/s-0037-1610027.

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Herein, we describe the guanidine-promoted synthesis of carbonates from glycerol, CO2, and alkyl halides. Specifically, a linear tricarbonate (1,2,3-tri-O-butoxycarbonylglycerol), a dicarbonate [butyl (2-oxo-1,3-dioxolan-4-yl)methyl carbonate] containing a linear and a cyclic moiety, and a cyclic monocarbonate (4-hydroxymethyl-2-oxo-1,3-dioxolan) were selectively obtained in good yields, which were strongly affected by the steric bulkiness of the guanidine group substituents. The developed method exhibits the advantages of high efficiency and mild conditions, thus being a powerful tool for the

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5

Dai, Qiu Ju, and Ming Gao. "Thermal Degradation of Hemp Treated with Guanidine Carbonate." Advanced Materials Research 705 (June 2013): 106–9. http://dx.doi.org/10.4028/www.scientific.net/amr.705.106.

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Hemp was treated with guanidine carbonate to impart flame retardance. The thermal degradation of the samples were studied by thermogravimetry (TG) and differential thermal analysis (DTA). The flame retardance was determined by LOI. Morphology of the char structure was studied by SEM to obtain information concerning the thermal degradation mechanism. For hemp treated with guanidine carbonate, which has higher LOI and char yield values, the oxidative decomposition stages include a decomposition stage at lower temperatures (172-210°C) , leading to more carbonaceous residue and small amount of fla

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6

Shi, Tujin, Junfang Zhao, PY Iris Shek, Alan C. Hopkinson, and KW Michael Siu. "Carbonate, carbamate, urea, and guanidine as model species for functional groups in biological molecules A combined density functional theory and mass spectrometry examination of polysodiation and gas-phase dissociation." Canadian Journal of Chemistry 83, no. 11 (2005): 1941–52. http://dx.doi.org/10.1139/v05-204.

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Electrospray mass spectrometric analyses of carbonate, carbamate, urea, and guanidine in the presence of sodium ions results in polysodiated complexes of the type, [M (n 1)H + nNa]+, where M is the species analyzed and n = 2 and (or) 3. These complexes are unusual in their high sodium contents and their attractive structures. The [M H + 2Na]+ complexes fragment to produce [Na2NH2]+, Na+, and a product ion resulting from the loss of NH3. The [M 2H + 3Na]+ complexes dissociate to give a number of fragment ions, including [Na3O]+, [Na2OH]+, [NaOCNNa]+, [Na2NH2]+, [Na3CN2]+, and Na+, depen

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7

Shang, Yuhan, Mai Zheng, Haibo Zhang, and Xiaohai Zhou. "The Guanidine-Promoted Direct Synthesis of Open-Chained Carbonates." Australian Journal of Chemistry 72, no. 12 (2019): 933. http://dx.doi.org/10.1071/ch18623.

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In order to reduce CO2 accumulation in the atmosphere, chemical fixation methodologies were developed and proved to be promising. In general, CO2 was turned into cyclic carbonates by cycloaddition with epoxides. However, the cyclic carbonates need to be converted into open-chained carbonates by transesterification for industrial usage, which results in wasted energy and materials. Herein, we report a process catalyzed by tetramethylguanidine (TMG) to afford linear carbonates directly. This process is greener and shows potential for industrial applications.

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8

Wang, Xingxing, Peng Zhang, Penglei Cui, Weiguo Cheng, and Suojiang Zhang. "Glycerol carbonate synthesis from glycerol and dimethyl carbonate using guanidine ionic liquids." Chinese Journal of Chemical Engineering 25, no. 9 (2017): 1182–86. http://dx.doi.org/10.1016/j.cjche.2017.06.025.

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9

Sivakumar, Reajean, Julien Kwiatoszynski, Amaury Fouret, et al. "Enantiomer-Specific Oriented Attachment of Guanidine Carbonate Crystals." Crystal Growth & Design 16, no. 7 (2016): 3573–76. http://dx.doi.org/10.1021/acs.cgd.6b00547.

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10

Xu, Yaohui, Liangjuan Gao, Jinyuan Yang, Qingxiu Yang, Wanxin Peng, and Zhao Ding. "Effective and Efficient Porous CeO2 Adsorbent for Acid Orange 7 Adsorption." Materials 16, no. 7 (2023): 2650. http://dx.doi.org/10.3390/ma16072650.

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A porous CeO2 was synthesized following the addition of guanidine carbonate to a Ce3+ aqueous solution, the subsequent addition of hydrogen peroxide and a final hydrothermal treatment. The optimal experimental parameters for the synthesis of porous CeO2, including the amounts of guanidine carbonate and hydrogen peroxide and the hydrothermal conditions, were determined by taking the adsorption efficiency of acid orange 7 (AO7) dye as the evaluation. A template−free hydrothermal strategy could avoid the use of soft or hard templates and the subsequent tedious procedures of eliminating templates,

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11

Chen, Angjun, Chen Chen, Yuhe Xiu, et al. "Niobate salts of organic base catalyzed chemical fixation of carbon dioxide with epoxides to form cyclic carbonates." Green Chemistry 17, no. 3 (2015): 1842–52. http://dx.doi.org/10.1039/c4gc02244k.

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Peroxoniobate salts of amidine and guanidine have been utilized as halogen-free catalysts for the synthesis of cyclic carbonates from epoxides and CO<sub>2</sub> under solvent-free and halide-free conditions.

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12

Raju, Harode, та C. Sharma T. "Synthesis of 2-amino-4,6-diarylpyrimidines from α-halochalcone". Journal of Indian Chemical Society Vol. 79, Feb 2002 (2002): 190. https://doi.org/10.5281/zenodo.5878820.

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Department of Chemistry, Government Arts & Science College. Ratlam-457 001, India School of Studies in Chemistry, Vikram University, Ujjain-456 010, India <em>Manuscript received 31 January 2001, revised 3 July 2001, accepted 18 July 2001</em> 2-Amino-4,6-diarylpyrimidines have been prepared by reacting α-bromochalcones with guanidine in presence of sodium carbonate.

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13

Diallo, Abdou Khadri, Evgueni Kirillov, Martine Slawinski, Jean-Michel Brusson, Sophie M. Guillaume, and Jean-François Carpentier. "Syndioselective ring-opening polymerization and copolymerization of trans-1,4-cyclohexadiene carbonate mediated by achiral metal- and organo-catalysts." Polymer Chemistry 6, no. 11 (2015): 1961–71. http://dx.doi.org/10.1039/c4py01713g.

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14

Viswanathan, Thimma Mohan, Kaniraja Chitradevi, Azar Zochedh, et al. "Guanidine–Curcumin Complex-Loaded Amine-Functionalised Hollow Mesoporous Silica Nanoparticles for Breast Cancer Therapy." Cancers 14, no. 14 (2022): 3490. http://dx.doi.org/10.3390/cancers14143490.

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The current study focuses on developing a tumour-targeted functionalised nanocarrier that wraps hollow mesoporous silica nanoparticles. The guanidine carbonate and curcumin are immobilised on the surface of 3-aminopropyl-triethoxy silane (APTES)-decorated hollow mesoporous silica nanoparticles (HMSNP), as confirmed through XPS and NMR analysis. XPS analysis demonstrates that the shape of the hysteresis loops is modified and that pore volume and pore diameter are consequently decreased compared to control. Guanidine (85%) and guanidine–curcumin complex (90%) were successfully encapsulated in HM

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15

Kasturi, Abishek, Jorge F. Gabitto, Radu Custelcean, and Costas Tsouris. "A Process Intensification Approach for CO2 Absorption Using Amino Acid Solutions and a Guanidine Compound." Energies 14, no. 18 (2021): 5821. http://dx.doi.org/10.3390/en14185821.

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Environmentally friendly amino-acid salt solutions are used for the absorption of carbon dioxide from concentrated flue-gas streams via chemical absorption. Process intensification reduces operating and capital costs by combining chemical reactions and separation operations. Here, we present a new process-intensification approach that combines the CO2 capture and the amino-acid regeneration steps into a single process carried out in a slurry three-phase reactor. The absorbed CO2 precipitates as a solid carbonated guanidine compound. The cycle is completed by separation of the solid precipitate

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16

Narule, Meghasham, Jyotsna Meshram, B. Santhakumari, and A. Shanware. "Synthesis of 2-[4-(10H-Substituted Phenothiazine-3-yl)-6-Pyrimidin-2-Phenylthiol/ol/amine/thiol] Pyrroles." E-Journal of Chemistry 4, no. 1 (2007): 53–59. http://dx.doi.org/10.1155/2007/572543.

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2-[4-Hydroxy benz-1(propene-1-one)]Pyrrole II on treatment with phenyl thiourea, guanidine carbonate, urea and thiourea in alcoholic KOH yielded compounds III, IV, V, VI which on treatment with different aryl anilines gave compounds VII, VIII, IX, X which under goes cyclisation with sulphur and iodine to give 2-[4-(10H-substituted phenothiazine-3-yl)-6-pyrimidin-2-phenylthiol/-ol/-amine/-thiol] pyrrole XI(a-j), XII(a-j), XIII(a-j) and XIV(a-j) respectively. The structural products were characterized by elemental analysis and spectral data.

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17

Zhang, Xue, Qianhong Gao, and Dadong Shao. "Application of magnetic guanidine/carbonate substituted hydroxyapatite in uranium extraction from seawater." Journal of Environmental Chemical Engineering 12, no. 6 (2024): 114586. http://dx.doi.org/10.1016/j.jece.2024.114586.

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18

K, Dinesh Babu, Philominathan P, and Murali K. "Linear and non-linear optical properties of spray deposited guanidine carbonate thin films." Optik 186 (June 2019): 350–62. http://dx.doi.org/10.1016/j.ijleo.2019.03.048.

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19

Chen, Yu-Juan, Zhao-En Liu, Qian Yang, Chun-Feng Wang, and Ke-Lei Zhuo. "Nitrogen-Doped Highly Photoluminescent Carbon Dots Derived from Citric Acid and Guanidine Carbonate." Journal of Nanoscience and Nanotechnology 19, no. 7 (2019): 4058–63. http://dx.doi.org/10.1166/jnn.2019.16332.

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20

Yokota, Kenichirou, Masayori Hagimori, Naoko Mizuyama, et al. "Synthesis, solid-state fluorescence properties, and computational analysis of novel 2-aminobenzo[4,5]thieno[3,2-d]pyrimidine 5,5-dioxides." Beilstein Journal of Organic Chemistry 8 (February 16, 2012): 266–74. http://dx.doi.org/10.3762/bjoc.8.28.

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New fluorescent compounds, benzo[4,5]thieno[3,2-d]pyrimidine 5,5-dioxides (3a–g), 2-amino-4-methylsulfanylbenzo[4,5]thieno[3,2-d]pyrimidine (6), and 2-amino-4-methylsulfanyl-7-methoxybenzo[4,5]furo[3,2-d]pyrimidine (7), were synthesized in good yields from heterocyclic ketene dithioacetals (1a–c) and guanidine carbonate (2a) or (S)-methylisothiourea sulfate (2b) in pyridine under reflux. Among the fused pyrimidine derivatives, compound 3c, which has an amino group at the 2-position and a benzylamino group at the 4-position of the pyrimidine ring, showed the strongest solid-state fluorescence.

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21

Aggarwal, Natasha N., B. C. Revanasiddappa, Banylla Felicity, Vijay Kumar, and Hemanth Kumar. "SYNTHESIS, IN SILICO ANALYSIS AND ANTICONVULSANT ACTIVITY OF NOVEL PYRIMIDINE DERIVATIVES." Indian Drugs 58, no. 05 (2021): 21–29. http://dx.doi.org/10.53879/id.58.05.12570.

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In this present study, a novel series of chalcones (C1-10) were synthesized by reacting 4-nitro acetophenone and various substituted aromatic aldehydes in an alcohol medium. The title compounds, pyrimidine derivatives (PD1-10), were obtained by the cyclization of chalcones (C1-10) with guanidine carbonate in an alcoholic medium. Each of the newly synthesized compounds was structurally assigned in accordance with FT-IR, 1 H-NMR and mass spectral data. All the synthesized compounds were subjected to in silico analysis among which, some of the synthesized compounds were chosen and evaluated for i

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22

Ananoria, Abhel Y., and Bryan B. Pajarito. "Water Diffusion in Natural Rubber Vulcanizates: Effect of Ingredient Loading on Swelling and Mechanical Properties." Key Engineering Materials 705 (August 2016): 30–34. http://dx.doi.org/10.4028/www.scientific.net/kem.705.30.

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The effect of compounding ingredients to swelling and mechanical properties of vulcanized natural rubber (NR) in deionized water at 80°C was investigated. Rubber sheets are compounded according to a fractional factorial design of experiment, where ingredients are treated as factors varied at two levels of loading. Results show that sulfur, used oil, calcium carbonate (CaCO3), reclaimed rubber, asphalt, diphenyl guanidine (DPG), mercaptobenzothiazole (MBT), and mercaptobenzothiazole disulfide (MBTS) are some of the significant ingredients of the formulation affecting the material properties of

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23

Amanapu, H. P., K. V. Sagi, L. G. Teugels, and S. V. Babu. "Role of Guanidine Carbonate and Crystal Orientation on Chemical Mechanical Polishing of Ruthenium Films." ECS Journal of Solid State Science and Technology 2, no. 11 (2013): P445—P451. http://dx.doi.org/10.1149/2.018311jss.

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24

Mirza, Nouman R., Nathan J. Nicholas, Yue Wu, Kathryn H. Smith, Sandra E. Kentish, and Geoffrey W. Stevens. "Viscosities and Carbon Dioxide Solubilities of Guanidine Carbonate and Malic Acid-Based Eutectic Solvents." Journal of Chemical & Engineering Data 62, no. 1 (2016): 348–54. http://dx.doi.org/10.1021/acs.jced.6b00680.

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25

Gibot, P., P. Fioux, F. Schnell, and D. Spitzer. "Formation of HxN-rich graphitic carbon nitride network from guanidine carbonate salt by pyrolysis." Diamond and Related Materials 59 (October 2015): 7–12. http://dx.doi.org/10.1016/j.diamond.2015.08.004.

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26

Hao, Siyu, Dong Feng, Feng Wu, et al. "Highly transparent and fire-safe polypropylene carbonate composites via guanidine phosphate hydrogen bonding complexation." Polymer Degradation and Stability 218 (December 2023): 110548. http://dx.doi.org/10.1016/j.polymdegradstab.2023.110548.

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27

Hong, Shiqi, Along Cui, Suolan Liu, and Songwang Yang. "Guanidine carbonate modified TiO2/Perovskite interface for efficient and stable planar perovskite solar cells." Organic Electronics 130 (July 2024): 107063. http://dx.doi.org/10.1016/j.orgel.2024.107063.

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28

Pawlędzio, Sylwia, and Xiaoping Wang. "Crystal Engineering of Hydrogen Bonding for Direct Air Capture of CO2: A Quantum Crystallography Perspective." Crystals 14, no. 1 (2024): 77. http://dx.doi.org/10.3390/cryst14010077.

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Rising atmospheric CO2 levels demand efficient and sustainable carbon capture solutions. Direct air capture (DAC) via crystallizing hydrogen-bonded frameworks such as carbonate salts has emerged as a promising approach. This review explores the potential of crystal engineering, in tandem with advanced quantum crystallography techniques and computational modeling, to unlock the full potential of DAC materials. We examine the critical role of hydrogen bonding and other noncovalent interactions within a family of bis-guanidines that governs the formation of carbonate salts with high CO2 capture c

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29

Ghasemi, Saeed, Simin Sharifi, and Javid Shahbazi Mojarrad. "Design, Synthesis and Biological Evaluation of Novel Piperazinone Derivatives as Cytotoxic Agents." Advanced Pharmaceutical Bulletin 10, no. 3 (2020): 423–29. http://dx.doi.org/10.34172/apb.2020.051.

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Purpose : In this study, a series of piperazin-2-one derivatives were prepared through bioisosteric substitution of the imidazole ring of L-778,123 (imidazole-containing FTase inhibitor) and rearrangement of groups based on the tipifarnib structure. Final compounds were evaluated for their cytotoxic activities on cancer and normal cell lines by MTT assay. Methods: Methyl α-bromophenylacetic acid and 1-(3-chlorophenyl) piperazin-2-one were synthesized using previously described methods. Methyl 2-(4-chlorophenyl)-2-(4-(3- chlorophenyl)-3-oxopiperazin-1-yl) acetate was prepared by reaction betwee

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30

Kvartenko, Oleksandr, Larysa Sabliy, Nataliya Kovalchuk, and Andriy Lysytsya. "The use of the biological method for treating iron containing underground waters." Journal of Water and Land Development 39, no. 1 (2018): 77–82. http://dx.doi.org/10.2478/jwld-2018-0061.

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AbstractThe use of the biological method is promising for treating underground waters from iron compounds. Iron bacteria used in the process are widely spread in weak acidic and neutral underground waters containing iron ions (II), dissolved carbon dioxide and minimum concentrations of oxygen. The relevant direction of present-day biotechnology is the use of iron bacteria for treating underground waters. The goal of this research is to compare the efficiency of using the biological method for treating underground iron containing weak acidic and neutral waters under different conditions. As the

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31

Alves, M., R. Méreau, B. Grignard, C. Detrembleur, C. Jérôme, and T. Tassaing. "DFT investigation of the reaction mechanism for the guanidine catalysed ring-opening of cyclic carbonates by aromatic and alkyl-amines." RSC Advances 7, no. 31 (2017): 18993–9001. http://dx.doi.org/10.1039/c7ra00220c.

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32

Gürpınar, Kübra, Yaprak Gürsoy Tuncer, Ş. Betül Sopacı, et al. "Some Nitrogen Rich Energetic Material Synthesis by Nucleophilic Substitution Reaction from Polynitro Aromatic Compounds." Acta Chimica Slovenica 68, no. 4 (2021): 930–44. http://dx.doi.org/10.17344/acsi.2021.6904.

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Three new nitrogen-rich energetic compounds, N-(5-chloro-2,4-dinitrophenyl)hydrazine (1), N-(5-chloro-2,4-dinitrophenyl) guanidine (2) and N-(5-chloro-2,4-dinitrophenyl)-4-aminopyrazole (3) prepared by the nucleophilic substitution reaction of 1,3-dichloro-4,6-dinitrobenzene with hydrazine, guanidinium carbonate and 4-aminopyrazole. The compounds were characterized by 1H NMR, 13C NMR, IR and mass spectroscopy. Only compound 2 could be prepared in a suitable crystal and molecular model was determined by X-ray analysis. Compounds were investigated by TG and DSC. Thermal degradation and thermokin

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33

Zhang, Xia, Changchao Jia, and Jian Liu. "Guanidine carbonate assisted supramolecular self-assembly for synthesizing porous g-C3N4 for enhanced photocatalytic hydrogen evolution." International Journal of Hydrogen Energy 46, no. 38 (2021): 19939–47. http://dx.doi.org/10.1016/j.ijhydene.2021.03.126.

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34

Rock, S. E., D. J. Crain, J. P. Zheng, C. M. Pettit, and D. Roy. "Electrochemical investigation of the surface-modifying roles of guanidine carbonate in chemical mechanical planarization of tantalum." Materials Chemistry and Physics 129, no. 3 (2011): 1159–70. http://dx.doi.org/10.1016/j.matchemphys.2011.05.079.

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35

Silambarasan, A., P. Rajesh, and P. Ramasamy. "Study on structural, morphological, optical and thermal properties of guanidine carbonate doped nickel sulfate hexahydrate crystal." Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy 134 (January 2015): 345–49. http://dx.doi.org/10.1016/j.saa.2014.06.096.

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36

Ca', Nicola Della, Bartolo Gabriele, Giuseppe Ruffolo, Lucia Veltri, Tito Zanetta, and Mirco Costa. "Effective Guanidine-Catalyzed Synthesis of Carbonate and Carbamate Derivatives from Propargyl Alcohols in Supercritical Carbon Dioxide." Advanced Synthesis & Catalysis 353, no. 1 (2011): 133–46. http://dx.doi.org/10.1002/adsc.201000607.

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37

Laanemäe, Joel, Rutha Jäger, Patrick Teppor, Olga Volobujeva, and Enn Lust. "Waste Tire Derived Carbon Support for Non-Platinum-Group Metal Catalyst Materials for Oxygen Reduction Reaction in Alkaline Medium." ECS Transactions 111, no. 5 (2023): 63–72. http://dx.doi.org/10.1149/11105.0063ecst.

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A porous carbon material was synthesized using waste tire granules via pyrolysis. Six non-platinum-group metal catalyst materials were synthesized based on this carbon material, Fe(NO3)3 · 9H2O, and either dicyandiamide or guanidine carbonate as the nitrogen source. Synthesis parameters such as pyrolysis temperature, precursor mass ratios, and acid washing time were varied for each material. All catalysts were characterized physically using HR-SEM, SEM-EDX, and N2 sorption analyses as well as electrochemically using the rotating disk electrode method in 0.1 M KOH. The materials were rich in na

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38

Devi, S., and Deepa Jananakumar. "Structural, optical and thermal studies of novel nonlinear optical materials – L-Valine doped Guanidine carbonate single crystals." Materials Today: Proceedings 42 (2021): 1353–55. http://dx.doi.org/10.1016/j.matpr.2020.12.1207.

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39

Qu, Qinghua, Linyan Cheng, Peiru Wang, et al. "Guanidine-functionalized basic binuclear poly(ionic liquid)s for low partial pressure CO2 fixation into cyclic carbonate." Separation and Purification Technology 339 (July 2024): 126682. http://dx.doi.org/10.1016/j.seppur.2024.126682.

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40

Kim, Wooram, Mijeong Park, Jong-Ki Jeon, and Youngmin Jo. "Synthesis Optimization of Guanidinium Dinitramide (GDN)." Journal of Nanoscience and Nanotechnology 20, no. 11 (2020): 6855–61. http://dx.doi.org/10.1166/jnn.2020.18798.

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Dinitramide anion [−N(NO2)2] salt composed of resonance structure is a plausible oxidizing agents, as efficient propellant. Among them, guanidinium dinitramide (GDN) is an organic compound improving the stability against moisture, as well long term storage. An additional advantage composed guanidinium ion is the reaction efficient via the decomposed by-product during pyrognostics, maximum yield of 99%. The types of GDN (GDN-I, II, III, IV, V) were synthesized using several starting material such as guanidine acetate, chloride, carbonate, nitrate and sulfate under hydrodeprivation. In this work

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41

Zakaria, P. N. M., F. I. Saaid, A. A. M. Raffi, I. S. M. Noor, H. J. Woo, and W. Tan. "Efficiency enhancement of dye-sensitized solar cell with PVdF-HFP:MPII:NaI quasi-solid-state electrolyte." IOP Conference Series: Earth and Environmental Science 1151, no. 1 (2023): 012053. http://dx.doi.org/10.1088/1755-1315/1151/1/012053.

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Abstract Quasi-solid-state polymer electrolyte (QSSPE) based on poly(vinylidene fluoride-co-hexafluoropropylene) (PVdF-HFP) was prepared using sodium iodide (NaI) salt, 1-methyl-3-propylimidazolium iodide (MPII) ionic liquid, propylene carbonate (PC) and 1,2-dimethoxyethane (DME) plasticizers. This paper discusses the effects of using a binary mixture of large (MPII) and small (NaI) cation alkaline salts on enhancing the performance of DSSCs with gel polymer electrolytes. The amount of NaI was varied while the other components were kept constant to study the dependence of dye-sensitized solar

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S., N. SAWHNEY, S. DHINDSA G., and VIR DHARAM. "Synthesis of some 2-Heterocyclylphenothiazines as Potential Anti-inflammatory Agents." Journal of Indian Chemical Society Vol. 65, Sep 1988 (1988): 643–47. https://doi.org/10.5281/zenodo.6042671.

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Department of Chemistry, Kurukshetra University, Kurukshetra-132-119 <em>Manuscript received 20 January 1987 revised 25 April 1988, accepted 4 July 1988</em> Twenty six compounds belonging to five different series (1-5), namely, 2-(2-alkyl- or aryl-4-thiazolyl)- and 2-(2-amino- or substituted-amino-4-thiazolyl) phenothiazines (1 and 2, respectively), their 10-acetyl analogues (3),-(2-amino-6-aryl-4-pyrimidinyl)- and 2-(5-aryl-4,5-dihydro-3-pyrazolyl)-phenothiazines (4 and 5, respectively) have been synthesised throuah different routes, 1 and 2 were synthesised by the condensation of 2-chl

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Tominaga, Yoshinori, Miki Hirose, Masayori Hagimori, Yasuhiro Shigemitsu, Naoko Mizuyama, and Bo-Cheng Wang. "One-Pot Synthesis of 6-Substituted Amino-2,4-diaminopyrimidine Derivatives Using Ketene Dithioacetals with Amines and Guanidine Carbonate." HETEROCYCLES 78, no. 4 (2009): 899. http://dx.doi.org/10.3987/com-08-11587.

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Sagi, K. V., H. P. Amanapu, L. G. Teugels, and S. V. Babu. "Investigation of Guanidine Carbonate-Based Slurries for Chemical Mechanical Polishing of Ru/TiN Barrier Films with Minimal Corrosion." ECS Journal of Solid State Science and Technology 3, no. 7 (2014): P227—P234. http://dx.doi.org/10.1149/2.0021407jss.

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Karacan, İsmail, and Gülhan Erdoğan. "An investigation on structure characterization of thermally stabilized polyacrylonitrile precursor fibers pretreated with guanidine carbonate prior to carbonization." Polymer Engineering & Science 52, no. 5 (2011): 937–52. http://dx.doi.org/10.1002/pen.22160.

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Della Ca', Nicola, Bartolo Gabriele, Giuseppe Ruffolo, Lucia Veltri, Tito Zanetta, and Mirco Costa. "ChemInform Abstract: Effective Guanidine-Catalyzed Synthesis of Carbonate and Carbamate Derivatives from Propargyl Alcohols in Supercritical Carbon Dioxide." ChemInform 42, no. 22 (2011): no. http://dx.doi.org/10.1002/chin.201122040.

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Goloshchapov, Dmitry, Vladimir Kashkarov, Kirill Nikitkov, and Pavel Seredin. "Investigation of the Effect of Nanocrystalline Calcium Carbonate-Substituted Hydroxyapatite and L-Lysine and L-Arginine Surface Interactions on the Molecular Properties of Dental Biomimetic Composites." Biomimetics 6, no. 4 (2021): 70. http://dx.doi.org/10.3390/biomimetics6040070.

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Differences in the surface interactions of non-stoichiometric nanocrystalline B-type carbonate-substituted hydroxyapatite (n-cHAp) with the amino acids L-Lysine hydrochloride (L-LysHCl) and L-Arginine hydrochloride (L-ArgHCl) in acidic and alkaline media were determined using structural and spectroscopic analysis methods. The obtained data confirm that hydroxyapatite synthesized using our technique, which was used to develop the n-cHAp/L-LysHCl and n-cHAp/L-ArgHCl composites, is nanocrystalline. Studies of molecular composition of the samples by Fourier transform infrared spectroscopy under th

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Grześkowiak, Wojciech Łukasz, Izabela Ratajczak, Magdalena Zborowska, Marcelina Przybylska, and Marcin Patora. "Phosphorus–Nitrogen Interaction in Fire Retardants and Its Impact on the Chemistry of Treated Wood." Materials 17, no. 21 (2024): 5283. http://dx.doi.org/10.3390/ma17215283.

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This work focuses on the changes in the chemical composition of wood caused by impregnation with fire retardants such as guanidine carbonate (GC), urea (U), diammonium phosphate (DAP) and their mixtures. The treated wood was tested using the oxygen index (LOI), Py–GC/MS analysis and FTIR Spectroscopy. The wood was vacuum treated at a pressure of 0.8 MPa for 20 min and then subjected to thermal degradation using the LOI. This way, degraded and nondegraded layers were obtained and ground (0.2 mm). All treatment variants achieved the class of non-flammable materials based on LOI tests; the except

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Syed Abd Halim, Syarifah Nurhusna Qadirah, Noor Aina Mohd Nazri, and Nik Abdul Hadi Md Nordin. "Comparative Effects of Graphitic Carbon Nitride Precursors on the Photocatalytic Degradation of Pyrene." Materials Science Forum 1076 (December 8, 2022): 181–91. http://dx.doi.org/10.4028/p-y056c4.

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Pyrene is a ubiquitous, persistent, and mutagenic pollutant that belongs to the polycyclic aromatic hydrocarbons. Graphitic carbon nitride (g-C3N4) has emerged as a promising photocatalyst for degradation of various pollutants in water and wastewater treatment due to its unique band structure and excellent physiochemical stability. This paper presents the comparative study of composites g-C3N4 from various combinations of precursors using thermal polycondensation at 600 °C. Comparative experiments revealed that the preparation conditions of both precursors and the mass ratios of precursor infl

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E, Vinoth. "Biodiesel Production from Waste Cooking Oil." International Journal of Students' Research in Technology & Management 3, no. 8 (2015): 448–50. http://dx.doi.org/10.18510/ijsrtm.2015.383.

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Biodiesel is receiving increased attention as an alternative, non-toxic, biodegradable and renewable diesel fuel and contributes a minimum amount of net greenhouse gases, such as CO2, SO2 and NO emissions to the atmosphere. Exploring new energy resources, such as biofuel is of growing importance in recent years. The possibility of obtaining oil from plant resources has created a great importance in several countries. Vegetable oil after esterification being used as bio diesel, Considering the cost and demand of the edible oil is bearable, so it may be preferred for the preparation of bio diese

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