In this contribution, we reported the synthesis of 2,6-bis(1-butyl-1H-1,2,3- triazol-1-yl)pyridine-capped poly(N-vinylpyrrolidone)s (denoted BTP-PVPy). First, a 2,6-bis-(1-butyl-1H-[1,2,3]triazol-4-yl)-pyridin-4-yl]-methanol (BTP-CH 2 OH) was synthesized. The as-obtained BTP-CH 2 OH was then employed to react with 4-cyano-4-isopropoxythiocarbonylsulfanyl-4-methyl-butyric acid to obtain a BTP-functionalized xanthate. The latter was used to mediate the radical polymerization of N-vinylpyrrolidone (NVP). It was found that the radical polymerization of NVP was in living/controlled manner in the presence of BTP-functionalized xanthate. By controlling the molar ratios of NVP to the BTP-functionalized xanthate, the BTP-capped PVPy samples were obtained with various lengths of PVPy chains. The BTP-capped PVPy samples displayed the self-assembly behavior in aqueous media. Notably, the self-assembly behavior was significantly influenced with the complexation of BTP end groups with the metal ions [Pt(II), Zn(II), and Eu(III)]. The sizes and morphologies of the self-organized nanoobjects were quite dependent on the coordination behavior of the tridentate ligand (viz. BTP) with the metal ions. In addition, the self-assembled nanoobjects in aqueous suspension displayed different photoluminescent behavior, depending on the types of metal ions.

中文翻译：

---

2,6-双（1-丁基-1H-1,2,3-三唑-1-基）吡啶封端的聚（N-乙烯基吡咯烷酮）：合成、与金属离子络合和自组装行为

在这篇文章中，我们报道了 2,6-双（1-丁基-1H-1,2,3-三唑-1-基）吡啶封端的聚（N-乙烯基吡咯烷酮）（表示为 BTP-PVPy）的合成。首先，合成了2,6-双-(1-丁基-1H-[1,2,3]三唑-4-基)-吡啶-4-基]-甲醇(BTP-CH 2 OH)。然后将所获得的BTP-CH 2 OH与4-氰基-4-异丙氧基硫代羰基硫烷基-4-甲基-丁酸反应以获得BTP-官能化的黄原酸酯。后者用于介导 N-乙烯基吡咯烷酮 (NVP) 的自由基聚合。发现 NVP 的自由基聚合在 BTP 功能化黄原酸盐存在下以活性/受控方式进行。通过控制 NVP 与 BTP 功能化黄原酸盐的摩尔比，获得了具有不同长度 PVPy 链的 BTP 封端的 PVPy 样品。BTP 封端的 PVPy 样品在水性介质中显示出自组装行为。值得注意的是，自组装行为受到 BTP 端基与金属离子 [Pt(II)、Zn(II) 和 Eu(III)] 络合的显着影响。自组织纳米物体的尺寸和形态很大程度上取决于三齿配体（即 BTP）与金属离子的配位行为。此外，水悬浮液中的自组装纳米物体显示出不同的光致发光行为，这取决于金属离子的类型。自组织纳米物体的尺寸和形态很大程度上取决于三齿配体（即 BTP）与金属离子的配位行为。此外，水悬浮液中的自组装纳米物体显示出不同的光致发光行为，这取决于金属离子的类型。自组织纳米物体的尺寸和形态很大程度上取决于三齿配体（即 BTP）与金属离子的配位行为。此外，水悬浮液中的自组装纳米物体显示出不同的光致发光行为，这取决于金属离子的类型。