Solid state conversion of a double helix thallium(I) coordination polymer to a corrugated tape silver(I) polymer
Solid state conversion of a double helix thallium(I) coordination polymer to a corrugated tape silver(I) polymer
复制标题
DOI：
10.1039/c6ra09423f
复制
发表时间：
2016-08
期刊：
影响因子：
3.9
通讯作者：
Maryam Moeinian;K. Akhbari;S. Kawata;Ryuta Ishikawa
中科院分区：
文献类型：
--
作者：
Maryam Moeinian;K. Akhbari;S. Kawata;Ryuta Ishikawa
我们观察到通过超声化学方法制备的具有双螺旋链结构的纳米TlI配位聚合物通过[Tl（μ 2-dcpa）] n（1）[Hdcpa = 2，4-二氯苯氧乙酸]与AgNO3的机械化学反应固态转化为纳米波纹状银（I）聚合物。这两种化合物的内部堆积看起来相似，低能结构变化使转化顺利发生。与初始Tl-O键（在1中）相比，由于形成更强的Ag-O键（在2中），该转变是不可逆的。在1的晶体堆积中存在弱相互作用平面，因此结构不是机械刚性的，这允许Ag离子穿透晶格并形成更强的键。
We observed the solid state conversion of a nanostructured TlI coordination polymer with a double helix chain structure, prepared by a sonochemical procedure, to a nanostructured corrugated tape silver(I) polymer via the mechanochemical reaction of [Tl(μ2-dcpa)]n (1) [Hdcpa = 2,4-dichlorophenoxyacetic acid] with AgNO3. The internal packing of these two compounds looked similar and low-energy structural changes allowed the conversion to occur smoothly. The transformation was irreversible as a result of the formation of stronger Ag–O bonds (in 2) compared with the initial Tl–O bonds (in 1). There are weak interaction planes in the crystal packing of 1, so the structure is not mechanically rigid, which allows Ag ions to penetrate the lattice and form stronger bonds.