01465nas a2200193   4500008004100000022001400041245006600055210006300121260007500184300000900259490000700268520081400275653001801089653001201107653001401119100002601133700001601159856009601175       2010                        eng d  a0369-820300aSolvent-induced viscosity changes in ionic liquids - a review0 aSolventinduced viscosity changes in ionic liquids a review  a5 LAJPATRAI RD, ALLAHABAD 211002, INDIAbNATL ACAD SCIENCES INDIAcJAN  a1-120 v803 a<p>The high viscosity of several ionic liquids is an undesirable property for their applications in a variety of chemical reactions and electrochemical devices. Addition of a solvent in an ionic liquid is known to reduce its high viscosity to a great extent. In this review, an attempt has been made to examine the published data on the reduction in viscosities of many ionic liquids upon the addition of molecular solvents, including water. A tentative description has been provided for the drop in viscosities under these conditions. Analysis of the viscosity data with the help of empirical equations has been summarized. This critical review also outlines the future outlook of the required studies that might be useful to those who are interested in using ionic liquids for a variety of applications.</p>10aionic liquids10asolvent10aviscosity1 aKhupse, Nageshwar, D.1 aKumar, Anil  uhttps://library.ncl.res.in/content/solvent-induced-viscosity-changes-ionic-liquids-review-001705nas a2200205   4500008004100000022001400041245009200055210006900147260000900216300001000225490000600235520104200241653001001283653001101293653001001304653001201314100002601326700002301352856012401375       2023                        eng d  a2058-988300aBatch and continuous flow mechanochemical synthesis of organic compounds including APIs0 aBatch and continuous flow mechanochemical synthesis of organic c  cDEC   a10-250 v93 a<p>Mechanochemistry is becoming an enabling technology for the synthesis of organic and inorganic compounds as well as for the synthesis of polymers as it underlines sustainability in a significant manner. Continuous mechanochemical synthesis further adds value to the approach through consistency, smaller footprint, and better energy efficiency. This review gives an indepth view of the present status of this subject along with critical engineering aspects that one needs to measure and monitor as eventually synthesis needs to be transformed into a process. The examples covered herein include the synthesis of organic compounds, viz., APIs, agrochemical intermediates, catalysts, and polymers. In the end, we also discuss the safety aspects of mechanochemical synthesis and recommendations for exploring this field further. Mechanochemistry is becoming an enabling technology for the synthesis of organic and inorganic compounds as well as for the synthesis of polymers as it underlines sustainability in a significant manner.</p>
10aacids10aAmides10aForce10asolvent1 aAtapalkar, Ranjit, S.1 aKulkarni, Amol, A.  uhttps://library.ncl.res.in/content/batch-and-continuous-flow-mechanochemical-synthesis-organic-compounds-including-apis01688nas a2200229   4500008004100000022001400041245011100055210006900166260000800235300001100243490000800254520092400262653001501186653002601201653001101227653001201238653001201250100002401262700002301286700001701309856013201326       2023                        eng d  a0926-669000aChallenges and opportunities for production of C5 sugar fatty acid esters (SFAEs) from renewable resources0 aChallenges and opportunities for production of C5 sugar fatty ac  cMAR  a1161700 v1933 a<p>
	Sugar fatty acid esters represent a billion-dollar market with huge global demand. Although glucose and sucrose-based surfactants have prevailed in the chemical industry for decades, C-5-based esters are relatively unknown and have recently started to gain attention owing to their multifunctional properties. These molecules can be derived from cheap and inexpensive biomass/renewable resources and present promising potential with diverse applications as additives in various nutraceutical, pharmaceutical, and cosmeceutical formulations. However, large-scale production of C-5 sugar esters is limited, with one or two commercial plants operating worldwide. This review highlights the major challenges and prospects of biotechnological production of the C-5 sugar esters, considering the possible advancements over existing technology with various aspects of industrial bioprocessing and product recovery.</p>
10aBioprocess10aC-5-fatty acid esters10aLipase10asolvent10axylitol1 aTracy, Preetanshika1 aDasgupta, Diptarka1 aMore, Snehal  uhttps://library.ncl.res.in/content/challenges-and-opportunities-production-c5-sugar-fatty-acid-esters-sfaes-renewable-resources01756nas a2200217   4500008004100000022001400041245010600055210006900161260000900230300001600239490000600255520102400261653001601285653001101301653002301312653001201335100002801347700001901375700001901394856012501413       2023                        eng d  a2470-134300aMulticomponent solvate crystals of 3,5-dinitrobenzoic acid and acetamide and CSD analysis of solvates0 aMulticomponent solvate crystals of 35dinitrobenzoic acid and ace  cJUN   a24644-246530 v83 a<p>Twelve multicomponent solvate crystals (cocrystal solvates) of 3,5-dinitrobenzoic acid and acetamide were synthesized via slow evaporation method. All crystalline materials were characterized by single-crystal X-ray diffraction. All cocrystal solvates are isostructural, and crystal packing forms continuous channels where some solvent molecules are connected via weak intermolecular interactions with 3,5dinitrobenzoic acid and acetamide. All multicomponent solvate crystals encompass amide-amide dimer homo synthons and form R22 (8) motifs. Moreover, the phase purity of solvate crystals was analyzed by powder Xray diffraction. Further, most of the cocrystal solvates were analyzed by nuclear magnetic resonance and differential scanning calorimetry. Cambridge structural database analysis categorizes solvate propensity in single-crystal structures. The importance of hydrogen bond donor/ acceptor nature, size, and shape of solvents is also discussed in the context of crystallization and crystal packing.</p>
10aCo-Crystals10aDesign10aHost Guest Complex10asolvent1 aShaikh, Tabrez, Rafique1 aShelke, Nikita1 aTothadi, Srinu  uhttps://library.ncl.res.in/content/multicomponent-solvate-crystals-35-dinitrobenzoic-acid-and-acetamide-and-csd-analysis03216nas a2200241   4500008004100000022001400041245008500055210006900140260000800209300001200217490000800229520246400237653001302701653001802714653001202732653001702744653001402761100002302775700002702798700002102825700001802846856011002864       2024                        eng d  a0031-865500aViscosity effects on the dynamics of diols and diol-based deep eutectic solvents0 aViscosity effects on the dynamics of diols and diolbased deep eu  cJUL  a946-9550 v1003 a<p>
	Diols, characterized by the presence of two hydroxyl groups, form extended hydrogen-bonded networks. Increasing hydrocarbon chain length is known to elevate the viscosity of diols. Given the established influence of viscosity on solvent dynamics, it becomes imperative to comprehend the impact of viscosity on the fluctuation dynamics within diols and establish connections with hydrogen bond formation and breaking dynamics. In this study, we employ two-dimensional infrared spectroscopy to investigate the viscosity dependence of the structural evolution dynamics in three diols with varying chain lengths. Complementing our experimental approach, molecular dynamics simulations are conducted to extract hydrogen bond lifetimes. Our findings reveal a linear correlation between bulk viscosity, solvent fluctuation timescales, and hydrogen bond lifetimes. Notably, the selected diols exhibit the capability to form deep eutectic solvents upon mixing with choline chloride at specific molar ratios. In contrast to molecular solvents like diols, deep eutectic solvents are characterized by the formation of heterogeneous nanodomains, comprising various intercomponent hydrogen-bonded networks. Interestingly, our observations indicate that while the fluctuation dynamics decelerate with increasing bulk viscosity in diol-based deep eutectic solvents, the relationship between viscosity and dynamics is not linear, in contrast to the observed linearity in diols. This nuanced understanding contributes to the broader comprehension of the interplay between viscosity and dynamics in both molecular and deep eutectic solvents. We investigate the impact of viscosity on structural evolution dynamics in diols with varying chain lengths. Employing two-dimensional infrared spectroscopy and molecular dynamics simulations, we explore the relationship between bulk viscosity, solvent fluctuation timescales, and hydrogen bond lifetimes. We report a linear correlation in diols between viscosity, fluctuation timescales, and hydrogen bond lifetimes. Diols also form deep eutectic solvents, characterized by heterogeneous nanodomains. While fluctuation dynamics slow down with increasing bulk viscosity in diol-based deep eutectic solvents, the relationship between viscosity and dynamics is nonlinear, contrasting with diols' linearity. This understanding enhances comprehension of viscosity-dynamics interplay in molecular and deep eutectic solvents.image</p>
10aDynamics10aHydrogen bond10asolvent10aspectroscopy10aviscosity1 aChatterjee, Srijan1 aDeshmukh, Samadhan, H.1 aChowdhury, Tubai1 aBagchi, Sayan  uhttps://library.ncl.res.in/content/viscosity-effects-dynamics-diols-and-diol-based-deep-eutectic-solvents