| 一维链状聚-L-苯丙氨酸合银(Ⅰ)单晶及纳米晶体的合成与表征 |
| Synthesis and Characterization of Coordination Polymer [Ag(L-Phe)]∞ with 1D Helical Chain and Corresponding Nanocrystal |
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| 摘要: 合成了[Ag(L-Phe)]∞单晶，晶体属于单斜晶系，空间群为P21，a=0.723 3(9) nm，b=0.641 2(8) nm，c=1.016 4(13) nm，β= 106.098(3)°，V=0.451 5(10) nm3，Z=2，F(000)=268，R1=0.053 1。Ag(Ⅰ)分别与2个L-苯丙氨酸分子的羧基氧原子和氨基氮原子连接形成二配位结构，并沿a轴形成无限的一维链状结构，该链状结构呈现不太明显的右螺旋构型；采用“线性反应器”合成了一系列(直径为20～60 nm，长度为200 nm～2.2 μm)纳米尺寸，结构与单晶一致的[Ag(L-Phe)]∞一维链状物，TEM观察了该纳米晶的自组装过程。 |
| 关键词: 银(Ⅰ) 苯丙氨酸 配合物 纳米晶体 |
| 基金项目: |
| Abstract: A novel one-dimensional chain compound [Ag(L-Phe)]∞ was synthesized. Crystal data:monoclinic, space group P21, a=0.723 3(9) nm, b=0.641 2(8) nm, c=1.016 4(13) nm, β=106.098(3)°, V=0.451 5(10) nm3, Z=2, F(000)=268, R1=0.0531. Ag(Ⅰ) ion exhibits two coordination modes, linking with carboxylate oxygen atom and amino nitrogen atom from different L-Phenylalanine(L-Phe) that act as a bridging ligand to connect the structural unit to form an infinite P-helical chain structure. A series of corresponding nanocrystals was formed through self-assembly with different lengths (200 nm～2.2 μm) and diameters (20～60 nm) using a novel “linear reactor”. The main phase of the nanocrystal and the crystal were charactered by XRD. An interesting process of the self-assembly was revealed by TEM, and a hypothesis was proposed. CCDC: 608281. |
| Keywords: Ag(Ⅰ) L-phenylalaninato complex nanocrystal |
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| 郑雪琳,翁家宝,胡炳环.一维链状聚-L-苯丙氨酸合银(Ⅰ)单晶及纳米晶体的合成与表征[J].无机化学学报,2006,22(12):2147-2151. |
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