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These studies suggest that the atomic weight of fluorine is 18.9995 and that fluorination in dendron molecules contributes to the formation of stable and robust supramolecular structures.
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The atomic weight of fluorine has been a subject of detailed study and revision. Initial findings by Patterson, Whytlaw-Gray, and Cawood suggested a value of 19.010 for the atomic weight of fluorine based on the molecular weight of methyl fluoride. However, this value has been contested due to the preliminary nature of the supporting data. For instance, McAdam and Smith's work on the analytical ratio of sodium fluoride to sodium chloride initially suggested a value of 19.019 for fluorine, but this was later corrected to account for experimental errors such as incomplete conversion and traces of water, which could have inflated the atomic weight.
Further studies by Germann and Booth on the normal density of silicon tetrafluoride did not directly compute the molecular weight of the fluoride. Clarke's deductions from their data suggested a molecular weight of 104.47 for silicon tetrafluoride, leading to an atomic weight of 19.09 for fluorine. Van Laar's calculations, which assumed incorrect critical constants for silicon tetrafluoride, proposed a slightly lower atomic weight of 18.995 for fluorine.
Fluorine's role extends beyond its atomic weight to its impact on chemical structures. Introducing fluorine into the chemical formula of self-assembling supramolecular systems generally enhances the stability and robustness of the resulting lattices. This is due to fluorine's unique chemical properties, which influence the self-assembly motifs and can lead to unexpected supramolecular architectures. For example, fluorination of a dendron molecule resulted in a significant change in its self-assembly behavior, demonstrating fluorine's ability to alter molecular interactions and structural outcomes.
The atomic weight of fluorine has been refined through various studies, with values ranging from 18.995 to 19.09, depending on the methodologies and corrections applied. Additionally, fluorine's incorporation into chemical formulas significantly impacts the stability and architecture of supramolecular systems, showcasing its versatile role in chemistry.
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