期刊
CRYSTAL GROWTH & DESIGN
卷 15, 期 8, 页码 4098-4103出版社
AMER CHEMICAL SOC
DOI: 10.1021/acs.cgd.5b00685
关键词
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资金
- Science Foundation of Ireland [13/RP/B2549]
Crystalline solid solutions (mixed crystals) formed from molecular compounds are a long-known class of multicomponent solids who-se composition can be varied, at least in principle, in continuum. Should such,control occur in mixed crystals over a wide range of compositions; then it follows that some structural and physical properties would also be tuned in continuum. However, the potential utility of mixed crystals as molecular Material has been hindered by their limited accessibility across a broad range of compositions and difficulties associated with their preparation. We address these matters herein through the use of mechanochemistry and solution crystallization to study three-component mixed crystals. In addition to expanding the composition range of previously known mixed crystals, we demonstrate that anthracene (ant) and,phenazine (pnz), which tend to crystallize as separate phases, form mixed crystals with a third molecule which is miscible hi both, namely, acridine (acr). The three-component mixed crystal is only accessible mechanocheinically as solution methods afford phase separation. If this observation is general, then it could have broad implications for this understudied class of molecular crystals.
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