A comparative examination of mono- and bis-chelate salicylatoborate complexes and the crystal structure of layered magnesium bis-salicylatoborate

Köse, Dursun Ali; Zümreoǧlu‐Karan, Birgül; Hökelek, Tuncer

doi:10.1016/j.ica.2011.05.012

Cited by 22 publications

(19 citation statements)

References 26 publications

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“…• C. The observed thermogravimetric behaviour was the same as reported for borate esters of salicylic acid, 19,20 proceeding in the following order: removal of crystal water molecules at low temperatures, intramolecular water elimination at ca. 175…”

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confidence: 70%

Organic biomolecules bind to phosphate through borate linkages in aqueous solutions

Aydogmus¹,

Köse²,

Beckett³

et al. 2014

Turk J Chem

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Solutions of salicyclic, ascorbic, and citric acids were reacted with boric acid, followed by NaH 2 PO 4 . The products, triphosphateborate ester of salicylic acid (1), orthosphateborate ester of ascorbic acid (2), triphosphateborate ester of ascorbic acid (3), and orthosphateborate ester of citric acid (4), were flash precipitated with cold acetone and characterised by microanalysis, thermal analysis, FT-IR, Raman, 11 B NMR, 31 P MAS NMR, and mass spectroscopic techniques. Analytical results indicated the presence of -C-O-B-O-P-linkages with the attached phosphate groupsvarying between orthophosphate and triphosphate, depending on the starting material. The biomolecules studied in this work may serve as models in the B-P-organic system and the results would provide a possible contribution to boron prebiotic chemistry.

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supporting

confidence: 70%

Organic biomolecules bind to phosphate through borate linkages in aqueous solutions

Aydogmus¹,

Köse²,

Beckett³

et al. 2014

Turk J Chem

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“…The ν s COO vibration was splitted into two sharp peaks at ∼1268 and ∼1242 cm −1 , revealing the complex structure of carboxylate group in the BScB anion. 47 The broad and strong vibrations in the range of 1200−900 cm −1 were assigned to the ν a (B−O) in tetrahedral boron complexes. The two strong vibrational bends centered at 764 and 698 cm −1 were attributed to the ν s (B−O) stretches of (BScB) 2 anion.…”

Section: ■ Results and Discussionmentioning

confidence: 99%

Halogen-Free Bis(imidazolium)/Bis(ammonium)-Di[bis(salicylato)borate] Ionic Liquids As Energy-Efficient and Environmentally Friendly Lubricant Additives

Gusain

Gupta

Saran

et al. 2014

ACS Appl. Mater. Interfaces

132

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Bis(imidazolium)- and bis(ammonium)-di[bis(salicylato)borate] ionic liquids with variable alkyl chain and cyclic ring structures, were synthesized and then evaluated them as potential lubricant additives. The copper strip test results revealed noncorrosive properties of these ionic liquids. Introduction of halogen content in bis(imidazolium) ionic liquid by replacement of bis(salicylato)borate (BScB) anion with hexafluorophosphate (PF6(-)), severely corroded the copper strip. Thermogravimetric results showed that bis(imidazolium) ionic liquids exhibited higher thermal stability than bis(ammonium) ionic liquids owing to compact structure provided by imidazolium rings, higher intermolecular interactions, smaller free volume and low steric hindrance. The lubrication properties of these ionic liquids as additives to synthetic lubricant poly(ethylene) glycol (PEG 200) were evaluated for steel balls. Results showed that bis(ammonium)- and bis(imidazolium)-(BScB)2 ionic liquids as additives significantly reduced both friction coefficient and wear of PEG 200. The structure of cations, particularly the variation in substituted alkyl chain length monitored the degree of reduction in friction and wear. The excellent lubrication properties were attributed to the formation of adsorbed tribo-thin film and tribochemical product during the tribo-contact. Being halogen-, phosphorus-, and sulfur-free, these ionic liquids (a) protects contact surfaces from tribo-corrosive events, (b) reduces the friction and wear, and (c) keep environment green and clean.

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“…[54] Chem.E ur.J.2015, 21,14258 -14267 www.chemeurj.org These acids are also known to form boron complexes with tetrahedrally coordinated boron. [55] An alternative to M-WCAs with tetrahedral boron could be M-WCAs with octahedral phosphorus. P V is known to form the weakly coordinating anions 19 and 20 (Figure 7, left).…”

Section: Possible Pitfalls and Their Mitigationmentioning

confidence: 99%

Macrocyclic Weakly Coordinating Anions

Landskron

2015

Chemistry A European J

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Herein, the concept of macrocyclic weakly coordinating anions (M-WCAs) is introduced. Synthetic methodologies are described how to access M-WCAs by thermodynamically controlled self-assembly in high yields, in particular through condensation and alkyne metathesis reactions. The anticipated properties and applications of M-WCAs in solid state and in solution are discussed, specifically for gas storage and separation, homogeneous and heterogeneous catalysis, and as liquid and solid electrolytes.

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A comparative examination of mono- and bis-chelate salicylatoborate complexes and the crystal structure of layered magnesium bis-salicylatoborate

Cited by 22 publications

References 26 publications

Organic biomolecules bind to phosphate through borate linkages in aqueous solutions

Organic biomolecules bind to phosphate through borate linkages in aqueous solutions

Halogen-Free Bis(imidazolium)/Bis(ammonium)-Di[bis(salicylato)borate] Ionic Liquids As Energy-Efficient and Environmentally Friendly Lubricant Additives

Macrocyclic Weakly Coordinating Anions

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