An irreversible phase transition in 1-n-butylindeno[2,1-c]pyran-3,9-dione

作者：Batsanov Andrei S^*; Howard Judith A K; Wu Na; Yang Zhen; Marder Todd B

来源：Acta Crystallographica Section C-Crystal Structure Communications, 2012, 68: O413-U258.

DOI：10.1107/S010827011203805X

At ambient temperature, the title compound, C16H14O3, is triclinic, with the n-butyl side chain disordered in an out-of-plane orientation. On cooling below 240 K, it converts into a different triclinic phase with an ordered planar conformation and denser packing, which is retained on warming to room temperature. The transition (occasionally) proceeds from single crystal to single crystal.

• 出版日期2012-10
• 单位北京大学