molecular crystal


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molecular crystal

[mə′lek·yə·lər ′krist·əl]
(crystallography)
A solid consisting of a lattice array of molecules such as hydrogen, methane, or more complex organic compounds, bound by weak van der Waals forces, and therefore retaining much of their individuality.
References in periodicals archive ?
Therefore, a new type of two-dimensional molecular crystal was introduced due to the halogen bonds between the fluorine atoms.
The utility of such an approach in the solution of a molecular crystal structure has already been demonstrated [29].
Objective : Hydrogen under ambient pressure and low temperature forms a molecular crystal which under high pressure of ~400 GPa is predicted turn into metal and at further compression up to ~500 GPa hydrogen molecules dissociate and are transformed to a monoatomic crystal.
The molecular crystal structure of capsaicin, the hot component of chilli peppers, was solved directly from synchrotron powder diffraction data alone, using the same simulated annealing procedure outlined in the previous section [6].
Makoto Moriya of Shizuoka University in Japan investigated molecular crystals for this purpose.
I aim to develop new BC materials by exploiting phase transitions in non-magnetic solids whose structural and thermal properties are strongly coupled, namely ferroelectric salts, molecular crystals and hybrid materials.
Among their topics are computer simulations of charged colloids, layer-by-layer assembly on stimuli-responsive microgels, the dynamics and structure of water nanotube clusters confined to nanoporous molecular crystals, the quantum electrochemical study of benzene derivatives, possibilities and limitations of electrokinetic methods in biological interfaces, and surface characteristics and attachment behaviors of bacterial cells.
The first four chapters examine the interplay of charge (polarons) and neutral (excitons) photoexcitations in pi-conjugated polymers, oligomers, and molecular crystals in the time domain of 100 fs-2 ns.
Crystals of purines are formed by molecules and classified as molecular crystals (15).
The experiments were in the fields of superconductivity, molecular crystals, and molecular electronics and published in such respected journals as Science, Nature, and others.
Kitaigorodsky, Molecular Crystals, Nauka, Moscow (1971) (in Russian).
At first, a patchwork of "nucleation islands" peppers the gold surface as molecular crystals congeal from a gas into a solid.