Tetraisohexylammonium bromide [systematic name: tetrakis(4-methylpentyl)azanium bromide], C24H52N+·Br−, is a powerful structure II clathrate hydrate crystal-growth inhibitor. The crystal structure, in the space groupP3221, contains one ammonium cation and one bromide anion in the asymmetric unit, both on general positions. At 100 K, the ammonium cation exhibits one ordered isohexyl chain and three disordered isohexyl chains. At 250 K, all four isohexyl chains are disordered. In an effort to reduce the disorder in the alkyl chains, the crystal was thermally cycled, but the disorder remained, indicating that it is dynamic in nature.
四异己基
溴化铵[系统名称:四(4-甲基戊基)
溴化铵],
C24H52N+-Br-,是一种强大的结构 II 克拉
水合物晶体生长
抑制剂。该晶体结构的空间群为 P3221,在不对称单元中包含一个
铵阳离子和一个
溴阴离子,两者均位于一般位置。在 100 K 时,
铵阳离子显示出一条有序的异己基链和三条无序的异己基链。在 250 K 时,所有四条异己基链都是无序的。为了减少烷基链的无序性,对晶体进行了热循环,但无序性依然存在,这表明它具有动态性质。