The chemical elements and compounds are substantive kinds; the different chemical reactions are dynamic kinds; a tetrahedral molecular structure is a (structural) property kind (whose species include the particular tetrahedral structures of methane, carbon tetrachloride, silicon tetrafluoride and so forth).
Their molecular structure is too complex for immediate combustibility.
Theoretically the molecular structure is determined by solving the quantum mechanical equation for the motion of the electrons in the field of the nuclei (called the Schrödinger equation).
When a thin section of molded polypropylene is flexed repeatedly, a molecular structure is formed that is capable of withstanding much additional flexing without failing.
Spectroscopy is a general term used for the instrumental processes by which information about molecular structure is obtained through careful analysis of the absorption, scattering, or emission of electromagnetic radiation by compounds.
Cross-linked polymers, in which the molecular structure is a network, are thermosetting resins (i.e., they form under the influence of heat but, once formed, do not melt or soften upon reheating) that do not dissolve in solvents.
Heulandite's molecular structure is an open framework containing six-membered rings of silicate tetrahedra (four oxygen atoms arranged at the points of a triangular pyramid around a central silicon atom) joined in parallel planes.
It noted that "in order to understand the nature of chemical bonds, the function of molecules in biological contexts, and the mechanism and dynamics of reactions, knowledge of the exact molecular structure is absolutely necessary".
Mordenite's molecular structure is a framework containing chains of five-membered rings of linked silicate and aluminate tetrahedra (four oxygen atoms arranged at the points of a triangular pyramid about a central silicon or aluminum atom).
Fluorescent dye doesn't give off any light if the molecular structure is different, for instance.
Its molecular structure is given in Fig. 1.
