He Xiaoming, Lam Wai Han, Zhu Nianyong, Yam Vivian Wing-Wah
Centre for Carbon-Rich Molecular and Nano-Scale Metal-Based Materials Research, Department of Chemistry and HKU-CAS Joint Laboratory on New Materials, The University of Hong Kong, Pokfulam Road, Hong Kong, China.
Chemistry. 2009 Sep 7;15(35):8842-51. doi: 10.1002/chem.200900422.
Two calixarene-based bis-alkynyl-bridged Au(I) isonitrile complexes with two different crown ether pendants, [{calix[4]arene-(OCH(2)CONH-C(6)H(4)C[triple bond]C)(2)}{Au(CNR)}(2)] (R=benzo[15]crown-5 (1); R=benzo[18]crown-6 (2)), together with their related crown-free analogue 3 (R=C(6)H(3)(OMe)(2)-3,4) and a mononuclear gold(I) complex 4 with benzo[15]crown-5 pendant, have been designed and synthesized, and their photophysical properties have been studied. The X-ray structure of the ligand, calix[4]arene-(OCH(2)CONH-C(6)H(4)C[triple bond]CH)(2) has been determined. The cation-binding properties of these complexes with various metal ions have been studied using UV/Vis, emission, (1)H NMR, and ESI-MS techniques, and DFT calculations. A new low-energy emission band associated with AuAu interaction could be switched on upon formation of the metal ion-bound adduct in a sandwich fashion.
两种基于杯芳烃的双炔基桥联金（I）异腈配合物，带有两种不同的冠醚侧基，[{杯[4]芳烃-(OCH(2)CONH-C(6)H(4)C≡C)(2)}{Au(CNR)}(2)]（R = 苯并[15]冠-5（1）；R = 苯并[18]冠-6（2）），以及它们相关的无冠类似物3（R = C(6)H(3)(OMe)(2)-3,4）和带有苯并[15]冠-5侧基的单核金（I）配合物4，已被设计并合成，并对其光物理性质进行了研究。已确定配体杯[4]芳烃-(OCH(2)CONH-C(6)H(4)C≡CH)(2)的X射线结构。使用紫外/可见光谱、发射光谱、（1）H核磁共振和电喷雾电离质谱技术以及密度泛函理论计算研究了这些配合物与各种金属离子的阳离子结合性质。在以夹心方式形成金属离子结合加合物时，与金-金相互作用相关的一个新的低能量发射带可以被开启。
