A Series of Polymorphs of Hexakis(4-fluorophenoxy)cyclotriphosphazene
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https://figshare.com/articles/dataset/A_Series_of_Polymorphs_of_Hexakis_4_fluorophenoxy_cyclotriphosphazene/2500594
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资源简介:
A series of conformational polymorphs of hexakis(4-fluorophenoxy)cyclotriphosphazene
have been identified and characterized. Three of the four polymorphs
are previously unreported. Thermal analysis coupled with variable
temperature powder X-ray diffraction has shown that conversion between
polymorphs occurs at well-defined temperatures. The high temperature
form is metastable at room temperature and is never obtained from
solution. Two forms are observed in solution crystallization experiments,
a monoclinic form and a triclinic form. Slurry experiments revealed
that the triclinic form is the most stable at room temperature. The
fourth polymorph is observed only at low temperatures. Interconversion
between three of the polymorphs occurs in a single-crystal to single-crystal
manner.
创建时间:
2016-02-20



