Academic literature on the topic 'Sodium Phenoxide'

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Journal articles on the topic "Sodium Phenoxide"

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Fraser, Marie E., Suzanne Fortier, Mary K. Markiewicz, André Rodrigue, and John W. Bovenkamp. "The crystal structures of the 1:1:1 complexes of dicyclohexano-18-crown-6 (isomer B) with potassium phenoxide and phenol and dicyclohexano-18-crown-6 (isomer A) with sodium phenoxide and phenol." Canadian Journal of Chemistry 65, no. 11 (1987): 2558–63. http://dx.doi.org/10.1139/v87-425.

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The crystal structures of the 1:1:1 complexes of dicyclohexano-18-crown-6 (isomer B) with potassium phenoxide and phenol, and of dicyclohexano-18-crown-6 (isomer A) with sodium phenoxide and phenol have been determined. The potassium phenoxide complex crystallizes in space group Pnca with a = 14.150(3), b = 23.794(6), c = 9.491(1) Å, and Z = 4. Thesodium phenoxide complex crystallizes in space group Pbca with a = 21.201(4), b = 24.406(6), c = 12.492(3) Å, and Z = 8. Both structures were solved by direct methods and refined by full matrix least-squares calculations to residuals, R, of 0.059 for
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2

Wang, Jintao, Qijun Pei, Yang Yu, et al. "Investigation on the Formation of Rare-Earth Metal Phenoxides via Metathesis." Inorganics 11, no. 3 (2023): 115. http://dx.doi.org/10.3390/inorganics11030115.

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A number of alkali organometallic complexes with suitable thermodynamic properties and high capacity for hydrogen storage have been synthesized; however, few transition metal–organic complexes have been reported for hydrogen storage. Moreover, the synthetic processes of these transition metal–organic complexes via metathesis were not well characterized previously, leading to a lack of understanding of the metathesis reaction. In the present study, yttrium phenoxide and lanthanum phenoxide were synthesized via metathesis of sodium phenoxide with YCl3 and LaCl3, respectively. Quasi in situ NMR,
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3

Domiński, Adrian, Tomasz Konieczny, Magdalena Zięba, Magdalena Klim та Piotr Kurcok. "Anionic Polymerization of β-Butyrolactone Initiated with Sodium Phenoxides. The Effect of the Initiator Basicity/Nucleophilicity on the ROP Mechanism". Polymers 11, № 7 (2019): 1221. http://dx.doi.org/10.3390/polym11071221.

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It was shown that selected sodium phenoxide derivatives with different basicity and nucleophilicity, such as sodium p-nitrophenoxide, p-chlorophenoxide, 1-napthoxide, phenoxide and p-methoxyphenoxide, are effective initiators in anionic ring-opening polymerization (AROP) of β-butyrolactone in mild conditions. It was found that phenoxides as initiators in anionic ring-opening polymerization of β-butyrolactone behave as strong nucleophiles, or weak nucleophiles, as well as Brønsted bases. The resulting polyesters possessing hydroxy, phenoxy and crotonate initial groups are formed respectively by
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Fraser, Marie E., Suzanne Fortier, André Rodrigue, and John W. Bovenkamp. "The crystal structures of the 1:2 host:guest complexes of dicyclohexano-18-crown-6 (isomers A and B) with sodium and potassium phenoxide." Canadian Journal of Chemistry 64, no. 4 (1986): 816–23. http://dx.doi.org/10.1139/v86-134.

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The crystal structures of the 1:2 host:guest complexes of dicyclohexano-18-crown-6 (isomer B) with potassium phenoxide and dicyclohexano-18-crown-6 (isomer A) with sodium phenoxide have been determined. The potassium phenoxide complex crystallizes in space group [Formula: see text] with a = 10.023(2), b = 11.238(2), c = 7.546(2) Å, α = 95.73(2), β = 103.04(2), γ = 92.03(2)°, and Z = 1. The sodium phenoxide complex crystallizes in space group P21/n with a = 19.185(12), b = 13.266(5), c = 13.038(5) Å, β = 96.55(4)°, and Z = 4. Both structures were solved by direct methods and refined by full mat
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Dunn, Edward J., Robert Y. Moir, Erwin Buncel, J. Garfield Purdon, and Robert A. B. Bannard. "Metal ion catalysis in nucleophilic displacement reactions at carbon, phosphorus, and sulfur centers. II. Metal ion catalysis in the reaction of p-nitrophenyl diphenylphosphinate with alkali metal phenoxides in ethanol." Canadian Journal of Chemistry 68, no. 10 (1990): 1837–45. http://dx.doi.org/10.1139/v90-286.

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The reactions of p-nitrophenyl diphenylphosphinate (1) with lithium, sodium, potassium, and benzyltrimethylammonium phenoxides (BTMAOPh) have been studied by spectrophotometric techniques in anhydrous ethanol at 25 °C. The reactivity (kobs) of the alkali metal phenoxides increases in the order BTMAOPh < KOPh < NaOPh < LiOPh. The rate of reaction of 1 with LiOPh is enhanced when lithium salts (LiSCN, LiNO3, LiClO4, LiOAc) are added to the reaction media. The addition of the alkali metal complexing agents dicyclohexyl-18-crown-6 ether or [2.2.2]cryptand for Na+, and [2.1.1]cryptand for
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Murchie, Michael P., John W. Bovenkamp, André Rodrigue, Kimberley A. Watson, and Suzanne Fortier. "Complexes of 15-crown-5 and cyclohexano-15-crown-5 with lithium, sodium, and potassium phenoxide having macrocycle: salt ratios of 1:1 and 1:2. The crystal structures of two polymorphs of 15-crown-5•2LiOPh." Canadian Journal of Chemistry 66, no. 10 (1988): 2515–23. http://dx.doi.org/10.1139/v88-395.

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The syntheses, in ethereal solvents, of the complexes of 15-crown-5 and cyclohexano-15-crown-5 with lithium, sodium, and potassium phenoxide are described. The two macrocycles form complexes with lithium and sodium phenoxide with host:guest ratios of 1:2. Potassium phenoxide, however, was complexed by the two macrocycles to give products with macrocycle:salt ratios of 1:1. Crystals of 15-crown-5•2LiOPh were obtained for X-ray diffraction structure determinations. In fact, the crystal structures of two co-crystallizing polymorphs of this complex (1a and 1b) have been determined. Polymorph 1a cr
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Rodrigue, André, John W. Bovenkamp, Benoit V. Lacroix, Robert A. B. Bannard, and Gerald W. Buchanan. "Complexes of 18-crown-6 macrocyclic ethers obtained from ethereal solvents. Complexes of potassium and sodium salts with host:guest ratios of 1:2 and 1:3." Canadian Journal of Chemistry 64, no. 4 (1986): 808–15. http://dx.doi.org/10.1139/v86-133.

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This paper describes the synthesis, in ethereal solvents, of the complexes of 18-crown-6, the cis–syn–cis and the cis–anti–cis isomers of dicyclohexano-18-crown-6, and dibenzo-18-crown-6 with the potassium and sodium salts of phenoxide and thiocyanate (as well as some potassium oximate salts). In general, the macrocycles break down the aggregates of the potassium salts so that the complexes of the contact ion pairs are isolated. The complex of the cis–anti–cis isomer of dicyclohexano-18-crown-6, however, which has a low stability constant, complexes the dimer of potassium phenoxide to give a c
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Fang, Yao-ren, Zhu-gen Lai, and Kenneth Charles Westaway. "Isotope effects in nucleophilic substitution reactions X. The effect of changing the nucleophilic atom on ion-pairing in an SN2 reaction." Canadian Journal of Chemistry 76, no. 6 (1998): 758–64. http://dx.doi.org/10.1139/v98-056.

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The effect of ion-pairing in an SN2 reaction is very different when the nucleophilic atom is changed from sulfur to oxygen, i.e., changing the nucleophile from thiophenoxide ion to phenoxide ion. When the nucleophile is sodium thiophenoxide, ion-pairing markedly alters the secondary α -deuterium kinetic isotope effect (transition state structure) and the substituent effect found by changing the para substituent on the nucleophile. When the nucleophile is sodium phenoxide, ion-pairing does not significantly affect the secondary α -deuterium or the chlorine leaving group kinetic isotope effects
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Mohammad, Omar, Jude A. Onwudili, and Qingchun Yuan. "Potential Large-Scale CO2 Utilisation for Salicylic Acid Production via a Suspension-Based Kolbe–Schmitt Reaction in Toluene." Molecules 29, no. 11 (2024): 2527. http://dx.doi.org/10.3390/molecules29112527.

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Conversion of CO2 into organic chemicals offers a promising route for advancing the circularity of carbon capture, utilisation, and storage in line with the international 2050 Net Zero agenda. The widely known commercialised chemical fixation of CO2 into organic chemicals is the century-old Kolbe–Schmitt reaction, which carboxylates phenol (via sodium phenoxide) into salicylic acid. The carboxylation reaction is normally carried out between the gas–solid phases in a batch reactor. The mass and heat transfer limitations of such systems require rather long reaction times and a high pressure of C
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Freund, Amy S., Michael Calichman, and Christopher W. Allen. "The Reactions of Hexafluorocyclotriphosphazene with Sodium Phenoxide." Zeitschrift f�r anorganische und allgemeine Chemie 630, no. 12 (2004): 2059–62. http://dx.doi.org/10.1002/zaac.200400310.

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Dissertations / Theses on the topic "Sodium Phenoxide"

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Markovi, Z., JP Engelbrecht, and S. Markovi. "Theoretical Study of the Kolbe-Schmitt Reaction Mechanism." A Journal of Chemical Sciences, 2002. http://encore.tut.ac.za/iii/cpro/DigitalItemViewPage.external?sp=1002008.

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Abstract A theoretical study of the Kolbe-Schmitt reaction mechanism, performed using a DFT method, reveals that the reaction between sodium phenoxide and carbon dioxide proceedswith the formation of three transition states and three intermediates. In the first step of the reaction, a polarized ONa bond of sodium phenoxide is attacked by the carbon dioxide molecule, and the intermediate NaPh-CO2 complex is formed. In the next step of the reaction the electrophilic carbon atom attacks the ring primarily at the ortho position, thus forming two new intermediates. The final product, sodium salicyl
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Books on the topic "Sodium Phenoxide"

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Bruce, Cook. The Feasibility of measuring the rate constant and secondary [alpha]-deuterium kinetic isotope effect for the Sn2 reaction between sodium phenoxide and benzyl chloride at low concentrations of phenoxide ion. Laurentian University, 1995.

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Book chapters on the topic "Sodium Phenoxide"

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Bährle-Rapp, Marina. "Sodium Phenoxide." In Springer Lexikon Kosmetik und Körperpflege. Springer Berlin Heidelberg, 2007. http://dx.doi.org/10.1007/978-3-540-71095-0_9680.

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Mikami, K., Y. Matsumoto, and T. Shiono. "Titanium–Alkoxy and –Phenoxy Complexes from Chlorotitanium Complexes by Ligand Exchange with Sodium Alkoxides or Phenoxides." In Compounds of Groups 7-3 (Mn..., Cr..., V..., Ti..., Sc..., La..., Ac...). Georg Thieme Verlag KG, 2003. http://dx.doi.org/10.1055/sos-sd-002-00755.

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Conference papers on the topic "Sodium Phenoxide"

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Aspden, R. G., G. Economy, R. H. Kunig, and W. M. Connor. "Intergranular Attack of Alloy 600." In CORROSION 1987. NACE International, 1987. https://doi.org/10.5006/c1987-87098.

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Abstract Parametric studies of laboratory initiated intergranular attack (IGA) in mill annealed Alloy 600 were conducted. In isothermal capsule tests an increase in test temperature from 600 to 650°F and, to a lesser extent, an increase in caustic concentration from near 10 to 50 weight percent enhanced IGA. Only one addition, Cr2O3, to caustic strongly increased the IGA rate. The contribution of some organic environments to IGA and stress corrosion cracking (SCC) was evaluated at 610°F. Highly stressed C-rings exhibited IGA and SCC in sodium phenoxide and sodium formate, unstable environments
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