Pseudopolymorphism and Polymorphic Transition Behavior of N-(4鈥?Methoxyphenyl)-2-naphthalenesulfonamide

详细信息    查看全文

• 作者：Takahiro Sakai ; Kosuke Katagiri ; Yuki Uemura ; Hyuma Masu ; Masahide Tominaga ; Isao Azumaya
• 刊名：Crystal Growth & Design
• 出版年：2013
• 出版时间：January 2, 2013
• 年：2013
• 卷：13
• 期：1
• 页码：308-314
• 全文大小：613K
• 年卷期：v.13,no.1(January 2, 2013)
• ISSN：1528-7505

文摘

The title compound afforded four different types of crystals as pseudopolymorphs upon crystallization from a variety of different solvents. Single-crystal X-ray analysis revealed that the nonsolvated crystals exclusively formed a zigzag chain motif through hydrogen-bonding interactions (H-bonds). In contrast, the solvent-containing crystals formed a helical chain motif through H-bonds to give rise to channel-shaped network structures. The inner spaces of the channels were occupied by solvent molecules from the crystallization solvent. These solvent-containing crystals could be converted to the nonsolvated crystals by removal of the solvent molecules by drying under reduced pressure at 45 掳C. They also showed mutual polymorphic transitions via a solvent-exchange process.