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Relevant bibliographies by topics / Compound K2

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Academic literature on the topic 'Compound K2'

Author: Grafiati

Published: 4 June 2025

Last updated: 1 August 2025

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Journal articles on the topic "Compound K2"

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Robl, Christian, and Karin Haake. "K2[SeMo3O13] · 3,5 H2O und K2[SMo3O13] · 4 H2O-Verbindungen mit kettenförmigen Heteropolyanionen des SeVI und SVI / K2[SeMo3O13] · 3.5 H2O and K2[SMo3O13] · 4 H2O-Compounds with Chain-Like Heteropoly-Anions of SeVI and SVI." Zeitschrift für Naturforschung B 48, no. 4 (1993): 399–403. http://dx.doi.org/10.1515/znb-1993-0401.

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Colourless monoclinic (space group C2/m) single crystals up to 1 mm long of K2[SeMo3O,3] · 3.5 H2O and K2[SMo3O13] · 4 H2O, respectively, were prepared from aqueous solution. Crystal data: Se compound a = 1703.5(2), b = 1088.5(1), c = 865.3(1) pm, β = 109.666(9)°, 1670 unique reflections, 123 parameters, Rg = 0.0233; S compound a = 1702.7(2), b = 1079.6(1), c = 884.9(1) pm, β = 112.248(9)°, 1458 unique reflections, 123 parameters, Rg = 0.0250. Both compounds cleave very easily to thin fibres. The chain-like heteropoly-anions are composed of chains of edge-sharing MoO6 coordination octahedra an

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Sun, Weimei, Xiaoying Ji, Larry J. Kricka, and H. Brian Dunford. "Rate constants for reactions of horseradish peroxidase compounds I and II with 4-substituted arylboronic acids." Canadian Journal of Chemistry 72, no. 10 (1994): 2159–62. http://dx.doi.org/10.1139/v94-274.

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The rate constants for the reactions of horseradish peroxidase compound I (k1) and compound II (k2) with three 4-substituted arylboronic acids, which enhance chemiluminescence in the horseradish peroxidase catalyzed oxidation of luminol by hydrogen peroxide, were determined at pH 8.6, total ionic strength 0.11 M, using stopped-flow kinetic measurements. For comparison, the rate constants of the reactions of 4-iodophenol with compounds I and II were also determined under the same experimental conditions. The three arylboronic acid derivatives and their rate constants are: 4-biphenylboronic acid

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Khudheyer Jawad Kadem. "Synthesis of Heterocyclic Compounds Containing Sulphur From Ethylene Diamine Tetra Acetic acid Derivatives." International Journal of Research in Pharmaceutical Sciences 11, SPL4 (2020): 1006–11. http://dx.doi.org/10.26452/ijrps.v11ispl4.4236.

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In this work, three novel Schiff's bases subsidiaries were set up from Ethylene Diamine Tetra Acetic corrosive Derivatives(K1, K2 and K3); (K1) which was blend from response of EDTA with 4-hydroxybenzaldehyde and 2,4-dintrophenyl hydrazine. (K2) which was union from response of EDTA with vinilline and 2,4-dintrophenyl hydrazine. (K3) which was amalgamation from response of EDTA with 4-aminoacetophenone and 2,4-dintrophenyl hydrazine after that combination three novel hetrocyclic compound Containing Sulfur molecule; Derivative with compounds containing carbonyl group (aldehyde or ketone) the ca

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Journal, Baghdad Science. "Synthesis and Characterization of 3 - Substituted Coumarin." Baghdad Science Journal 13, no. 1 (2016): 89–96. http://dx.doi.org/10.21123/bsj.13.1.89-96.

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The reaction of(2-oxo-2H-chromen-3-Carbonyl chloride)(k1) with hydrazine in boiling ethanol gives the hydrazide(K2).When compound (k2) reacts with various aromatic aldehydes ,the corres ponding Schiff bases(k3–k4) achieve new series of thiazotidines (k5–k6) and azetidinones (k7–k8) obtained from the reactions of appropriate Schiff bases with mercapto acetic acid and chloro acetyl chloride respectively. All the compounds are characterized by FT-IR,1H-NMR and GC-Ms.

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Lapshin, A. E., M. A. Petrova, and Yu F. Shepelev. "Crystal structure of the K2(Zn3P4O14) compound." Glass Physics and Chemistry 33, no. 6 (2007): 590–95. http://dx.doi.org/10.1134/s1087659607060107.

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Klinkhammer, Karl-Wilhelm, Werner Uhl, Jürgen Wagner, and Wolfgang Hiller. "K2[Al12iBu12], a Compound with Al12 Icosahedra." Angewandte Chemie International Edition in English 30, no. 2 (1991): 179–80. http://dx.doi.org/10.1002/anie.199101791.

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Li, Mei, Hang Xu, Ai Rong Xu, and Zhi Qiang Liang. "Treatment of Four Dyes Wastewater Using Fenton Reagent and Dynamical Research." Advanced Materials Research 550-553 (July 2012): 2382–85. http://dx.doi.org/10.4028/www.scientific.net/amr.550-553.2382.

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Fenton’s reagent was employed to treat four modeling compound of textile wastewater. The kinetic model of dye degradation during Fenton oxidation process was established. The results show that the relationship between and initial concentration of four dye is linear correlation. The calculated intrinsic rate constants of four dyes with ▪OH follow an order of k2(RB SRE)>k2(RR SBE)> k2(MB) >k2(RBB X-BR).

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Halder, Maurice, Ploingarm Petsophonsakul, Asim Akbulut, et al. "Vitamin K: Double Bonds beyond Coagulation Insights into Differences between Vitamin K1 and K2 in Health and Disease." International Journal of Molecular Sciences 20, no. 4 (2019): 896. http://dx.doi.org/10.3390/ijms20040896.

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Vitamin K is an essential bioactive compound required for optimal body function. Vitamin K can be present in various isoforms, distinguishable by two main structures, namely, phylloquinone (K1) and menaquinones (K2). The difference in structure between K1 and K2 is seen in different absorption rates, tissue distribution, and bioavailability. Although differing in structure, both act as cofactor for the enzyme gamma-glutamylcarboxylase, encompassing both hepatic and extrahepatic activity. Only carboxylated proteins are active and promote a health profile like hemostasis. Furthermore, vitamin K2

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Nisar, Maria, Mubushra Umbreen, Sunaina Rafique, et al. "Optical Properties of ZnS and Effect of Doping with Transition Elements." JOURNAL OF NANOSCOPE (JN) 1, no. 01 (2020): 21–33. http://dx.doi.org/10.52700/jn.v1i01.12.

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By the help of density functional theory for a Cu doped ZnS compound the charge density,Fermi surface and electronic structure have been examined. We have used (FP-LAPW)method, to deal with interchange relationship potential for solving of kohn-sham equations.We apply generalized gradient approximation (GGA), local density approximation (LDA)and Engel-Vosko GGA (EVGGA). Cu doped ZnS compound confirms that nature ofmaterial is metallic and Fermi energy (EF) is obtained by the overlapping of Cu-p and Znd state. At Fermi energy (EF) calculated density of states is 51.932, 18.655 and 13.235 states

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Marasović, Maja, Antonio Roščić, Borivoj Galić, and Mladen Miloš. "DETERMINATION OF ANTIOXIDANT CAPACITY OF SELECTED BOROXINES." CBU International Conference Proceedings 5 (August 24, 2017): 1159–63. http://dx.doi.org/10.12955/cbup.v5.1088.

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Our previous in vitro and in vivo studies on standard tumor cell lines: mammary adenocarcinoma 4T1, melanoma B16F10, and squamous cell carcinoma SCCVII have demonstrated that dipotassium-trioxohydroxytetrafluorotriborate, K2[B3O3F4OH], affects the growth of cancer cells. Based on indicative results of its anticancer activity, that are comparable to the standard cytostatic 5-fluorouracil, we decided to analyze the antioxidant capacity of K2[B3O3F4OH]. In our research, we include two other simpler representatives of the boroxine family compounds: trimethoxyboroxine and trimethylboroxine, which a

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Book chapters on the topic "Compound K2"

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Pardasani, R. T., and P. Pardasani. "Effective magnetic moment of K2[MoOF5]." In Magnetic Properties of Paramagnetic Compounds. Springer Berlin Heidelberg, 2012. http://dx.doi.org/10.1007/978-3-642-23675-4_667.

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Pardasani, R. T., and P. Pardasani. "Effective magnetic moment of K2[MnF5]∙H2O." In Magnetic Properties of Paramagnetic Compounds. Springer Berlin Heidelberg, 2012. http://dx.doi.org/10.1007/978-3-642-23675-4_1166.

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Pardasani, R. T., and P. Pardasani. "Effective magnetic moment of K2[MnL32]⋅2H2O." In Magnetic Properties of Paramagnetic Compounds. Springer Berlin Heidelberg, 2012. http://dx.doi.org/10.1007/978-3-642-23675-4_1266.

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Pardasani, R. T., and P. Pardasani. "Effective magnetic moment of K2[MnL22]⋅4.5H2O." In Magnetic Properties of Paramagnetic Compounds. Springer Berlin Heidelberg, 2012. http://dx.doi.org/10.1007/978-3-642-23675-4_1265.

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Pardasani, R. T., and P. Pardasani. "Effective magnetic moment of K2[MnL12]⋅3.5H2O." In Magnetic Properties of Paramagnetic Compounds. Springer Berlin Heidelberg, 2012. http://dx.doi.org/10.1007/978-3-642-23675-4_1264.

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Pardasani, R. T., and P. Pardasani. "Effective magnetic moment of K2[MnL52]⋅2H2O." In Magnetic Properties of Paramagnetic Compounds. Springer Berlin Heidelberg, 2012. http://dx.doi.org/10.1007/978-3-642-23675-4_1268.

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Pardasani, R. T., and P. Pardasani. "Effective magnetic moment of K2[MnL42]⋅H2O." In Magnetic Properties of Paramagnetic Compounds. Springer Berlin Heidelberg, 2012. http://dx.doi.org/10.1007/978-3-642-23675-4_1267.

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Pardasani, R. T., and P. Pardasani. "Effective magnetic moment of K2[MoO(O2)F4]." In Magnetic Properties of Paramagnetic Compounds. Springer Berlin Heidelberg, 2012. http://dx.doi.org/10.1007/978-3-642-23675-4_749.

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Pardasani, R. T., and P. Pardasani. "Effective magnetic moment of K2[Cu(Hhpo)2]·0.5H2O." In Magnetic Properties of Paramagnetic Compounds. Springer Berlin Heidelberg, 2012. http://dx.doi.org/10.1007/978-3-642-23675-4_4121.

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Pardasani, R. T., and P. Pardasani. "Effective magnetic moment of K2[Fe(CNO)4∙asa]." In Magnetic Properties of Paramagnetic Compounds. Springer Berlin Heidelberg, 2012. http://dx.doi.org/10.1007/978-3-642-23675-4_1405.

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Conference papers on the topic "Compound K2"

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Xiao, Dengyi, Mingsheng Lv, Guangcheng Hu, et al. "Characteristic of Tuwayil Formation and New Insight into its Contribution in Middle Cretaceous Petroleum System, Western UAE." In Abu Dhabi International Petroleum Exhibition & Conference. SPE, 2021. http://dx.doi.org/10.2118/207521-ms.

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Abstract In Western UAE, the Middle Cretaceous petroleum system is composed of Shilaif source, Mishrif/Tuwayil reservoir and Tuwayil/Ruwaydha seal. Oil is discovered in Tuwayil sandstone in DH and NN fields. Well correlation of Tuwayil siliciclastic interval shows high heterogeneity and rapid lithology varies. Currently, a few general studies about Tuwayil sandstone was published. However, detailed sedimentary facies, reservoir characteristics and accumulation mechanism about Tuwayil are ambiguous. Limitation on these aspects prohibits enlarging exploration activity of Tuwayil and makes barrie

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2

Church, F. C., R. E. Treanor, and H. C. Whinna. "ACTIVATION OF HEPARIN COFACTOR II BY PHOSVITIN, A PHOSPHOGLYCO-PROTEIN, AND OTHER PHOSPHATE-CONTAINING POLYANIONS." In XIth International Congress on Thrombosis and Haemostasis. Schattauer GmbH, 1987. http://dx.doi.org/10.1055/s-0038-1643867.

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We are characterizing the specificity of the polyanion-binding domain of the heparin/dermatan sulfate-dependent plasma protease inhibitor, heparin cofactor II (HCII). Various phosphate-containing polyanions accelerate the HCII-catalyzed inhibition of thrombin (T). Phosvitin, a phosphoprotein, enhances the HCII/T reaction at 25°C and pH 8.0 with the apparent second-order rate constant value (K2) increasing from 5 × 104 M−1 min−1 (in the absence of phosvitin) to 8 x 10' M”1 min as phosvitin increased from 0.05 to 30 ug/ml and then decreases as phosvitin is increased above 30 ug/ml. Apparent diss

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Rokni, Emad, Hsun Hsien Chi, and Yiannis A. Levendis. "In-Furnace Sulfur Capture by Co-Firing Coal With Alkali-Based Sorbents." In ASME 2016 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2016. http://dx.doi.org/10.1115/imece2016-65549.

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Over the last quarter of a century, since the 1990 US Clean Air Act Amendments were enacted the gaseous sulfur emission, in the form of sulfur dioxide, have been reduced [1] by a factor of 4, by switching to lower sulfur content coals, installation of flue gas desulfurization (FGD) sorbents or switching altogether to natural gas as a fuel. Penetration of alternative energy generation also has had a positive impact. However, current emissions of sulfur dioxide are still voluminous, amounting to 3,242,000 short tons annually in the USA [2]. As wet flue gas desulfurization is both real-estate- an

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Lijnen, H. R., L. Nelles, G. Lemmens, D. Collen, and W. E. Holmes. "A FUSION PROTEIN OF THE A-CHAIN OF t-PA WITH LOW Mr scu-PA COMBINES THE FIBRIN-SPECIFICITY OF BOTH MOLECULES." In XIth International Congress on Thrombosis and Haemostasis. Schattauer GmbH, 1987. http://dx.doi.org/10.1055/s-0038-1643943.

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A hybrid human cDNA was constructed by ligation of a cDNA fragment of tissue-type plasminogen activator (t-PA), encoding 5∲-untranslated, the pre-pro region and amino acids Ser 1 through Thr 263, with a cDNA fragment of urokinase-type plasminogen activator (u-PA), encoding amino acids Leu 144 through Leu 411. The hybrid cDNA was expressed in Chinese Hamster Ovary Cells and the translation product purified from the conditioned cell culture media in the presence of aprotinin. On SDS-gel electrophoresis under reducing conditions, the protein migrated as a single band with approximate Mr 70,000 an

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Reports on the topic "Compound K2"

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Ruangpornvisuti, Vithaya. A study of protonation and deprotonation of the novel amino acids : the compounds of aspartic acids : research repor. Chulalongkorn University, 1997. https://doi.org/10.58837/chula.res.1997.16.

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Acidity and basicity constants of N-acetylaspartic acid, aspartic acid, aspartylaspartic acid, Asp-Asp-Asp, Asp-Asp-Asp-Asp, Asp-Asp-Asp-Asp-Asp and Asp-Asp-asp-Asp-Asp-Asp were determined in 0.1 M potassium nitrate at 25 degree celsius, by means of potentiometric titration. Acidity constants of N-acetylaspartic acid are log K1 = -3.41 and log K2 = -5.13. Basicity constants, expressed as log K, of aspartic acid (asp) and polyaspartic acids (asp)n ; when n=2 to 6, are 9.80 and 8.79, 8.34, 8.50, 8.56 and 8.99 respectively. The number of acidity constant of polyaspartic acids (asp)n is equal to n

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