Author: Jessica.F

de Paula, Fernando H. M. published the artcileAlkyl glyceryl ethers as water-based lubricant additives in mixtures with xanthan gum, Application of 1-Bromododecane, the publication is Colloids and Surfaces, A: Physicochemical and Engineering Aspects (2022), 127881, database is CAplus.

Water-based lubricants are greener and more environmentally friendly than comparable oil-based lubricants. However, water-based lubricants typically have a poorer performance and, thus, need to be formulated with various additives. Here, alkyl glyceryl ethers, a class of nonionic surfactants, were investigated as lubricant additives. To this purpose, aqueous solutions of newly synthesized ethers (with different alkyl chain lengths, C8, C10, C12, and C14) were formulated with xanthan gum. The lubrication performance of these formulations was then tested exptl. Clearly, alkyl glyceryl ethers showed a significantly improved performance (higher friction reduction) with increasing the alkyl chain length. However, the ethers had to be formulated with xanthan gum, with which they formed a complex, which promoted ether dispersion and probably adsorption on the metal surface in the aqueous phase, thereby drastically reducing friction. Thus, the alkyl glyceryl ethers synthesized in this work are attractive green and highly efficient lubricant additives, which can improve the sustainability of industrial lubrication processes.

Colloids and Surfaces, A: Physicochemical and Engineering Aspects published new progress about 143-15-7. 143-15-7 belongs to bromides-buliding-blocks, auxiliary class Bromide,Aliphatic hydrocarbon chain, name is 1-Bromododecane, and the molecular formula is C12H25Br, Application of 1-Bromododecane.

Referemce:
https://en.wikipedia.org/wiki/Bromide,
bromide – Wiktionary

de Paula, Fernando H. M. published the artcileAlkyl glyceryl ethers as water-based lubricant additives in mixtures with xanthan gum, Recommanded Product: 1-Bromooctane, the publication is Colloids and Surfaces, A: Physicochemical and Engineering Aspects (2022), 127881, database is CAplus.

Water-based lubricants are greener and more environmentally friendly than comparable oil-based lubricants. However, water-based lubricants typically have a poorer performance and, thus, need to be formulated with various additives. Here, alkyl glyceryl ethers, a class of nonionic surfactants, were investigated as lubricant additives. To this purpose, aqueous solutions of newly synthesized ethers (with different alkyl chain lengths, C8, C10, C12, and C14) were formulated with xanthan gum. The lubrication performance of these formulations was then tested exptl. Clearly, alkyl glyceryl ethers showed a significantly improved performance (higher friction reduction) with increasing the alkyl chain length. However, the ethers had to be formulated with xanthan gum, with which they formed a complex, which promoted ether dispersion and probably adsorption on the metal surface in the aqueous phase, thereby drastically reducing friction. Thus, the alkyl glyceryl ethers synthesized in this work are attractive green and highly efficient lubricant additives, which can improve the sustainability of industrial lubrication processes.

Colloids and Surfaces, A: Physicochemical and Engineering Aspects published new progress about 111-83-1. 111-83-1 belongs to bromides-buliding-blocks, auxiliary class Bromide,Aliphatic hydrocarbon chain, name is 1-Bromooctane, and the molecular formula is C8H17Br, Recommanded Product: 1-Bromooctane.

Referemce:
https://en.wikipedia.org/wiki/Bromide,
bromide – Wiktionary

Arrechea-Marcos, I. published the artcileMolecular aggregation of naphthalimide organic semiconductors assisted by amphiphilic and lipophilic interactions: a joint theoretical and experimental study, Name: 2,5-Dibromo-3,4-dinitrothiophene, the publication is Physical Chemistry Chemical Physics (2017), 19(8), 6206-6215, database is CAplus and MEDLINE.

Amphiphilic and lipophilic donor-acceptor naphthalimide-oligothiophene assemblies exhibiting almost identical intramol. properties, but differing in their intermol. interactions, were synthesized. Here the authors analyze the effect of replacing the normally used lipophilic alkyl chains with hydrophilic ones in directing mol. aggregation from an antiparallel to a parallel stacking. This different mol. packing of the amphiphilic, NIP-3T_Amphi, and lipophilic, NIP-3T_Lipo, systems is assessed by electronic spectroscopies, scanning electronic microscopy and DFT quantum-chem. calculations Theor. calculations indicate that the presence of amphiphilic interactions promotes a face-to-face parallel arrangement of neighbor mols., which induces improved electronic coupling and therefore enhances the charge transport ability and photoconducting properties of this type of materials. Time of flight and photoconducting measurements are used to determine the impact of the amphiphilic and lipophilic interactions on their possible performance in optoelectronic devices.

Physical Chemistry Chemical Physics published new progress about 52431-30-8. 52431-30-8 belongs to bromides-buliding-blocks, auxiliary class Liquid Crystal &OLED Materials, name is 2,5-Dibromo-3,4-dinitrothiophene, and the molecular formula is C4Br2N2O4S, Name: 2,5-Dibromo-3,4-dinitrothiophene.

Referemce:
https://en.wikipedia.org/wiki/Bromide,
bromide – Wiktionary

Braude, Irwin A. published the artcileMechanism of interaction of sodium dodecyl sulfate with mouse interferon, Synthetic Route of 518-67-2, the publication is Journal of Biological Chemistry (1979), 254(16), 7758-64, database is CAplus and MEDLINE.

Na dodecyl sulfate (SDS) and other alkyl sulfates, provided they contained a min. of 12 C atoms (or ≥22 Å in length), stabilized mouse interferon (MIF) in the presence of urea, 2-mercaptoethanol, and heat. When MIF was treated with the alkyl sulfates in the absence of urea and 2-mercaptoethanol, all alkyl sulfates inactivated MIF to the same extent, suggesting that the stabilizing effect of SDS on MIF most likely occurs during the refolding process. Unlike SDS, other amphiphiles such as dodecylamine, Li dodecyl sulfate, and Na 1-dodecane sulfonate did not have an appreciable stabilizing effect on MIF, thus emphasizing the necessity of specific counter-ions and polar groups for SDS to affect MIF stability. Subsequent to its reaction with SDS, MIF no longer was bound to controlled pore glass (CPG) beads. This is most likely due to SDS masking the protein’s silanol-binding sites. Furthermore, after it had reacted with interferon, a portion (∼20 to 50%) of the SDS was no longer retained by the anion exchange resin AG1-X10. Conversely, interferon (which does not bind to AG1-X2, a resin with a larger pore size than AG1-X10) was retained by the resin AG1-X2 after it has reacted with SDS. In addition, SDS-treated MIF was able to bind to the immobilized hydrophobic ligand hexyl-agarose under conditions where the majority of the MIF itself was not retained. Some SDS co-eluted with MIF from AG1-X10, indicating that SDS binds to MIF. Furthermore, since SDS-treated MIF was retained by AG1-X2 and hexyl-agarose, at least some of the detergent’s polar and hydrophobic regions are located at the surface of the interferon mol.

Journal of Biological Chemistry published new progress about 518-67-2. 518-67-2 belongs to bromides-buliding-blocks, auxiliary class Other Aromatic Heterocyclic,Salt,Amine,Benzene, name is Dimidium bromide, and the molecular formula is C20H18BrN3, Synthetic Route of 518-67-2.

Referemce:
https://en.wikipedia.org/wiki/Bromide,
bromide – Wiktionary

Griggs, Billy G. published the artcileAssignment of the carbon-13 chemical shifts of ethidium bromide and analogs in deuterium oxide solution, Application of Dimidium bromide, the publication is Organic Magnetic Resonance (1980), 14(5), 371-3, database is CAplus.

The ¹³C NMR of the title compounds (I; R = Et, Me, R¹ = Ph, X = Br; R = Me, R¹ = H, X = Cl), in D₂O, were assigned. The assignments were based on fully coupled spectra, selective ¹H decoupling, chem. shift arguments, the effect of pD on chem. shifts, and spectra obtained from a selected 180°-τ-90° pulse sequence in conjunction with gated irradiation to obtain nuclear Overhauser enhancement intensification.

Organic Magnetic Resonance published new progress about 518-67-2. 518-67-2 belongs to bromides-buliding-blocks, auxiliary class Other Aromatic Heterocyclic,Salt,Amine,Benzene, name is Dimidium bromide, and the molecular formula is C20H18BrN3, Application of Dimidium bromide.

Referemce:
https://en.wikipedia.org/wiki/Bromide,
bromide – Wiktionary

Biro, Robert published the artcilePolymeric ionic liquid absorbents for n-butanol recovery from aqueous solution, Formula: C12H25Br, the publication is AIChE Journal (2022), 68(8), e17676, database is CAplus.

A wide-ranging study of imidazolium-based polymeric ionic liquids (PILs) as absorbents in two-phase partitioning bioreactor applications is presented, with a particular focus on the removal of n-butanol from dilute aqueous solutions The study begins with a description of the synthesis and phase transition temperatures of poly(1-vinyl-3-alkylimidazolium) bromides bearing alkyl groups of different lengths, architecture, and composition, as well as analogs bearing various inorganic and carboxylate anions. Knowledge of polymer structure is used to generate insight into the solute affinity of each PIL, as quantified by the measurements of n-butanol partition coefficient (PC_BuOH) and n-butanol/water selectivity (α_b/w). These equilibrium experiments are extended to create a complete P[(VC_12-linIm)(Br)]/n-BuOH/water ternary phase diagram that is used to propose a streamlined n-butanol recovery process.

AIChE Journal published new progress about 143-15-7. 143-15-7 belongs to bromides-buliding-blocks, auxiliary class Bromide,Aliphatic hydrocarbon chain, name is 1-Bromododecane, and the molecular formula is C12H25Br, Formula: C12H25Br.

Referemce:
https://en.wikipedia.org/wiki/Bromide,
bromide – Wiktionary

Biro, Robert published the artcilePolymeric ionic liquid absorbents for n-butanol recovery from aqueous solution, Category: bromides-buliding-blocks, the publication is AIChE Journal (2022), 68(8), e17676, database is CAplus.

A wide-ranging study of imidazolium-based polymeric ionic liquids (PILs) as absorbents in two-phase partitioning bioreactor applications is presented, with a particular focus on the removal of n-butanol from dilute aqueous solutions The study begins with a description of the synthesis and phase transition temperatures of poly(1-vinyl-3-alkylimidazolium) bromides bearing alkyl groups of different lengths, architecture, and composition, as well as analogs bearing various inorganic and carboxylate anions. Knowledge of polymer structure is used to generate insight into the solute affinity of each PIL, as quantified by the measurements of n-butanol partition coefficient (PC_BuOH) and n-butanol/water selectivity (α_b/w). These equilibrium experiments are extended to create a complete P[(VC_12-linIm)(Br)]/n-BuOH/water ternary phase diagram that is used to propose a streamlined n-butanol recovery process.

AIChE Journal published new progress about 111-83-1. 111-83-1 belongs to bromides-buliding-blocks, auxiliary class Bromide,Aliphatic hydrocarbon chain, name is 1-Bromooctane, and the molecular formula is C8H17Br, Category: bromides-buliding-blocks.

Referemce:
https://en.wikipedia.org/wiki/Bromide,
bromide – Wiktionary

Sarkar, Bhaswati published the artcileInsights into the Formations of Host-Guest Complexes Based on the Benzimidazolium Based Ionic Liquids-β-Cyclodextrin Systems, Recommanded Product: 1-Bromooctane, the publication is ACS Physical Chemistry Au (2022), 2(1), 3-15, database is CAplus.

Inclusion complexation is one of the best strategies for developing a controlled release of a toxic drug without unexpected side effects from the very beginning of the administration to the target site. In this study, three benzimidazolium based ionic liquids (ILs) having bromide anion and cation bearing long alkyl chains, hexyl- ([C₆CFBim]Br), octyl- ([C₈CFBim]Br), and decyl- ([C₁₀CFBim]Br) were designed and synthesized as antibacterial drugs. Inclusion complexes (ICs) of studied ILs have been prepared by the combination of β-cyclodextrin (β-CD), considering these conjugations should enhance the benignity of ILs and make them potential candidates for the controlled drug release. Characterizations and structural anal. of studied ICs have been performed by ¹H NMR, 2D-ROESY NMR, FT-IR, HRMS, TGA, DSC, surface tension, ionic conductivity, dynamic light scattering (DLS), and isothermal titration calorimetry (ITC). Further, the morphol. of the ICs has been analyzed by SEM and TEM. Furthermore, neat ILs and ICs have been treated against Escherichia coli and Bacillus subtilis to investigate their antibacterial activity, which confirms the prevention of bacterium growth and the shrinkage of the bacterial cell wall. The findings of this work provide the proof of concept that studied benzimidazolium based ILs-β-CD host-guest complexes should act as a potential candidate in controlled drug delivery and other biomedical applications.

ACS Physical Chemistry Au published new progress about 111-83-1. 111-83-1 belongs to bromides-buliding-blocks, auxiliary class Bromide,Aliphatic hydrocarbon chain, name is 1-Bromooctane, and the molecular formula is C8H17Br, Recommanded Product: 1-Bromooctane.

Referemce:
https://en.wikipedia.org/wiki/Bromide,
bromide – Wiktionary

Korber, Nikolaus published the artcileDirected synthesis of stable hydrogen polyphosphides: preparation and structural characterization of HP₁₁^2- in (NBnMe₃)₂HP₁₁ and (PBnPh₃)₂HP₁₁ as well as its comparison with the first “naked” P₁₁^3- ion in (NEtMe₃)₃P₁₁, Category: bromides-buliding-blocks, the publication is Angewandte Chemie, International Edition in English (1996), 35(10), 1107-1110, database is CAplus.

Directed synthetic routes to hydrogen polyphosphides by soft protonation of an alkali metal polyphosphide were investigated. Precise conditions for the protonation reaction were crucial; only reaction conditions that produced the acid in situ resulted in quant. and reproducable yields. Thus, reaction of Cs₃P₁₁ with benzyltrimethylammonium tribromide in NH₃(l) afforded (PhCH₂NMe₃)₂HP₁₁ in 94% yield. The structure of (PhCH₂NMe₃)₂HP₁₁ was determined by x-ray crystallog. Reaction of Cs₃P₁₁ with [EtNMe₃]I or [PhCH₂NPh₃]Br in NH₃(l) afforded (EtNMe₃)₃P₁₁ and (Ph₃PCH₂Ph)₂HP₁₁, resp. In the latter reaction, [PhCH₂NPh₃]Br acted as a weak proton donor.

Angewandte Chemie, International Edition in English published new progress about 111865-47-5. 111865-47-5 belongs to bromides-buliding-blocks, auxiliary class Benzenes, name is Mono(N,N,N-trimethyl-1-phenylmethanaminium) tribromide, and the molecular formula is C10H16Br3N, Category: bromides-buliding-blocks.

Referemce:
https://en.wikipedia.org/wiki/Bromide,
bromide – Wiktionary

Zang, Na published the artcileSynthesis and properties of a novel porphyrin and its zinc complex, Synthetic Route of 1207448-58-5, the publication is Wuji Huaxue Xuebao (2009), 25(5), 781-786, database is CAplus.

One novel asymmetry porphyrin (5,10,15-triphenyl-20-{4-[6′-(4”-o-salicylidene)-phenylammonio]hexanoxo}phenylporphyrin) and its zinc complex were synthesized and characterized by ¹H NMR, MS and UV-Vis. By means of spectrophotometer technique, the thermodn. properties of the coordination reaction of zinc porphyrin with four substituted imidazoles were investigated. The reaction is an exothermic process with increase in entropy. For substituted imidazoles, the standard equilibrium constants decrease in the order of K^–(2-MeIm)>K^–(N-MeIm)K^–(2-Et-4-MeIm)>K^–(Im). The nonlinear optical property of porphyrin and its zinc complexes were studied by Z-scan experiment

Wuji Huaxue Xuebao published new progress about 1207448-58-5. 1207448-58-5 belongs to bromides-buliding-blocks, auxiliary class Bromide,Benzene,Phenol,Ether,Aldehyde, name is 4-((6-Bromohexyl)oxy)-2-hydroxybenzaldehyde, and the molecular formula is C3H8N2S, Synthetic Route of 1207448-58-5.

Referemce:
https://en.wikipedia.org/wiki/Bromide,
bromide – Wiktionary