Results 191 to 200 of about 2,408,502 (255)
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American Scientist, 2012
My first encounter with H2 was typical for a boy in the age of chemistry sets that had some zing to them. My set, made by A. C. Gilbert Co., contained some powdered zinc. It had no acids, but it taught you to generate them from chemicals it included (for instance HCl from NaHSO4 and NH4Cl), or—the manual said— you could buy a small quantity from your ...
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My first encounter with H2 was typical for a boy in the age of chemistry sets that had some zing to them. My set, made by A. C. Gilbert Co., contained some powdered zinc. It had no acids, but it taught you to generate them from chemicals it included (for instance HCl from NaHSO4 and NH4Cl), or—the manual said— you could buy a small quantity from your ...
openaire +2 more sources
Design Rules of Hydrogen-Bonded Organic Frameworks with High Chemical and Thermal Stabilities.
Journal of the American Chemical Society, 2022Hydrogen-bonded organic frameworks (HOFs), self-assembled from strategically pre-designed molecular tectons with complementary hydrogen-bonding patterns, are rapidly evolving into a novel and important class of porous materials.
Xiyu Song +7 more
semanticscholar +1 more source
Journal of Physical Chemistry Letters, 2015
A series of new amino (NH)-type hydrogen-bonding (H-bonding) compounds comprising 2-(2'-aminophenyl)benzothiazole and its extensive derivatives were designed and synthesized.
Huan-Wei Tseng +11 more
semanticscholar +1 more source
A series of new amino (NH)-type hydrogen-bonding (H-bonding) compounds comprising 2-(2'-aminophenyl)benzothiazole and its extensive derivatives were designed and synthesized.
Huan-Wei Tseng +11 more
semanticscholar +1 more source
, 2015
Organocatalytic domino/cascade reactions provide a convenient method for the construction of complex molecular structures bearing multiple stereocenters in a highly stereoselective fashion.
Pankaj Chauhan +4 more
semanticscholar +1 more source
Organocatalytic domino/cascade reactions provide a convenient method for the construction of complex molecular structures bearing multiple stereocenters in a highly stereoselective fashion.
Pankaj Chauhan +4 more
semanticscholar +1 more source
Chemical Communications, 2015
Organocatalysis has proven to be one of the most rapidly developing and competitive research areas in asymmetric catalysis since 2000, and has become a third branch besides biocatalysis and transition metal catalysis.
X. Fang, Chun‐Jiang Wang
semanticscholar +1 more source
Organocatalysis has proven to be one of the most rapidly developing and competitive research areas in asymmetric catalysis since 2000, and has become a third branch besides biocatalysis and transition metal catalysis.
X. Fang, Chun‐Jiang Wang
semanticscholar +1 more source
Hydrogen bonding in the electronic excited state.
Accounts of Chemical Research, 2012Because of its fundamental importance in many branches of science, hydrogen bonding is a subject of intense contemporary research interest. The physical and chemical properties of hydrogen bonds in the ground state have been widely studied both ...
Guang-Jiu Zhao, Keli Han
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Hydrogen bonding with polonium
Physical Chemistry Chemical Physics, 2022Beyond atomic electronegativity: polonium can form hydrogen bonds even if its electronegativity is less than that of hydrogen. The X–H⋯Po H-bonds are dominated by dispersion and can have H-bond energy comparable to that of conventional H-bonds.
Kiran Devi Tulsiyan +3 more
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Tough stimuli-responsive supramolecular hydrogels with hydrogen-bonding network junctions.
Journal of the American Chemical Society, 2014Hydrogels were prepared with physical cross-links comprising 2-ureido-4[1H]-pyrimidinone (UPy) hydrogen-bonding units within the backbone of segmented amphiphilic macromolecules having hydrophilic poly(ethylene glycol) (PEG).
M. Guo +5 more
semanticscholar +1 more source
Halogen bonding based recognition processes: a world parallel to hydrogen bonding.
Accounts of Chemical Research, 2005Halogen bonding is the noncovalent interaction between halogen atoms (Lewis acids) and neutral or anionic Lewis bases. The main features of the interaction are given, and the close similarity with the hydrogen bonding will become apparent. Some heuristic
P. Metrangolo +3 more
semanticscholar +1 more source
Physical Review Letters, 2003
Computer simulations using density functional theory based ab initio path integral molecular dynamics have been carried out to investigate hydrogen bonding in water under ambient conditions. Structural predictions for both H2O and D2O, which include the effects of zero-point energy, thermal motion, and many body polarization effects, are contrasted ...
Michael L. Klein +3 more
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Computer simulations using density functional theory based ab initio path integral molecular dynamics have been carried out to investigate hydrogen bonding in water under ambient conditions. Structural predictions for both H2O and D2O, which include the effects of zero-point energy, thermal motion, and many body polarization effects, are contrasted ...
Michael L. Klein +3 more
openaire +3 more sources