Results 211 to 220 of about 1,670,637 (256)
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Science, 2007
We found that anthraquinone diffuses along a straight line across a flat, highly symmetric Cu(111) surface. It can also reversibly attach one or two CO 2 molecules as “cargo” and act as a “molecule carrier,” thereby transforming the diffusive behavior of the CO 2 molecules from isotropic to ...
K L, Wong +9 more
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We found that anthraquinone diffuses along a straight line across a flat, highly symmetric Cu(111) surface. It can also reversibly attach one or two CO 2 molecules as “cargo” and act as a “molecule carrier,” thereby transforming the diffusive behavior of the CO 2 molecules from isotropic to ...
K L, Wong +9 more
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Molecules in molecules calculations on decacyclene
Theoretica Chimica Acta, 1971The “molecules in molecules” method has been used to calculate the energies of the lowest four excited states of the decacyclene molecule which has been regarded as composed of three acenaphtylene biradicals. Comparison with experimental data and previous theoretical results shows that the results obtained with the present method are satisfactory.
C. J. M. Brugman +3 more
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H2+: the molecule of molecules
Physics World, 1995The articles on the many different forms of hydrogen in July's Physics World were fascinating, but there was one glaring omission – the molecular ion, H2+. What prevented this simple, friendly little molecule from appearing amongst its relatives?
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Engineering colloidal crystals molecule by molecule
ScienceDNA particles are programmed to assemble with precision into complex ...
Zhe, Li, Chengde, Mao
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Computational Methods in Sciences and Engineering 2003, 2003
We studied complexity of several classes of molecular graphs: linear and branch trees, (poly)cycles and general graphs. Trees and (poly)cycles are simple graphs that are graphs without multiple edges and loops. General graphs are graphs with multiple edges and loops. A loop is an edge with both of its vertices identical.
Trinajstić, Nenad, Nikolić, Sonja
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We studied complexity of several classes of molecular graphs: linear and branch trees, (poly)cycles and general graphs. Trees and (poly)cycles are simple graphs that are graphs without multiple edges and loops. General graphs are graphs with multiple edges and loops. A loop is an edge with both of its vertices identical.
Trinajstić, Nenad, Nikolić, Sonja
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Science, 2002
Carbon monoxide molecules were arranged in atomically precise configurations, which we call “molecule cascades,” where the motion of one molecule causes the subsequent motion of another, and so on in a cascade of motion similar to a row of toppling dominoes.
A J, Heinrich +3 more
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Carbon monoxide molecules were arranged in atomically precise configurations, which we call “molecule cascades,” where the motion of one molecule causes the subsequent motion of another, and so on in a cascade of motion similar to a row of toppling dominoes.
A J, Heinrich +3 more
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2004
Table 10.1 gives some approximate values for the atomic composition of a cell. The atomic composition represents a highly reductionist view, somewhat akin to asserting that the informational content of Macbeth is — Σaipnabec p i 1og2p i , where p i is the normalized frequency of occurrence of the ith letter of the alphabet. The next stage of complexity
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Table 10.1 gives some approximate values for the atomic composition of a cell. The atomic composition represents a highly reductionist view, somewhat akin to asserting that the informational content of Macbeth is — Σaipnabec p i 1og2p i , where p i is the normalized frequency of occurrence of the ith letter of the alphabet. The next stage of complexity
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Faraday Discuss., 2007
Chemistry is determined by the electrostatic forces acting within a collection of nuclei and electrons. The attraction of the nuclei for the electrons is the only attractive force in a molecule and is the force responsible for the bonding between atoms. This is the attractive force acting on the electrons in the Ehrenfest force and on the nuclei in the
Jesús, Hernández-Trujillo +3 more
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Chemistry is determined by the electrostatic forces acting within a collection of nuclei and electrons. The attraction of the nuclei for the electrons is the only attractive force in a molecule and is the force responsible for the bonding between atoms. This is the attractive force acting on the electrons in the Ehrenfest force and on the nuclei in the
Jesús, Hernández-Trujillo +3 more
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Science, 1983
Measurements of vapor pressures over their aqueous solutions indicate that organic compounds show profound differences in hydrophilic character. These differences are of such magnitude as to suggest an important role for changing solvation in determining free energy changes associated with metabolic transformations in water, and in governing structural
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Measurements of vapor pressures over their aqueous solutions indicate that organic compounds show profound differences in hydrophilic character. These differences are of such magnitude as to suggest an important role for changing solvation in determining free energy changes associated with metabolic transformations in water, and in governing structural
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Experimental Investigations of Molecule-Molecule and Electron-Molecule Scattering
1975Part I. Crossed molecular beam methods have been used to measure the differential elastic scattering of molecular hydrogen and deuterium with a number of diatomic and polyatomic secondary molecules. In particular, H2 + O2, SF6, NH3, H2O, CO and CH4 and D2 + O2, SF6, NH3, and H2O were all studied using thermal energy beams.
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