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from article Inertial confinement fusion
Electra, an ∼500 J/pulse, electron-beam pumped KrF laser at the Naval Research Laboratory. It has achieved 90,000 shots in a continuous run and 330,000 shots in 8 days at 2.5–5 Hz.
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from article Inertial confinement fusion
Conceptual design of the X-target. (Credit: Heavy Ion Fusion Science Virtual National Laboratory)
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from article Macrocyclic compound
Macrocyclic structures. (a) Two crown ethers. (b) A basic structure for three cryptands. (c) A lariat ether. (d) All-aliphatic spherand. (e) All-aromatic spherand.
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from article Macrocyclic compound
Macrocycles with various structural features. (a) Bicyclic cryptand (ditopic receptor). (b) Calix[6]arene; R represents a functional group. (c) Cavitand. (d) Carcerand. (e) Cyclophanes.
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from article Macrocyclic compound
Tetramers. (a) Resorcinarene having the rctt conformation. (b) Pyrogallolarene having the rccc conformation.
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from article Macrocyclic compound
The metal cation is the guest and the organic structure is the host in (a) 18-crown-6 complex of potassium cation (K+) and (b) sodium (Na+) complexed by a calix[4]arene.
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from article Macrocyclic compound
Complexing species. (a) Dibinaphtho-22-crown-6. (b) R,R-dibinaphtho-22-crown-6 complex of phenethylammonium chloride.
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from article Macrocyclic compound
Affinities for anions and cations shown for (a) pyrrole and (b) furan-derived cyclic tetramers.
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from article Macrocyclic compound
Amphiphiles. (a) Crown ether-steroid amphiphile. (b) Crown ether bolaamphiphile.
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from article Renner-Teller effect
Bending potential function V for a degenerate electronic state of a linear molecule as a function of displacement r, and for three values (0, 0.5, 1.0) of the Renner parameter ε. In the absence of Renner-Teller splitting (ε = 0) there is a single…
