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Stepwise Achievement of Circularly Polarized Luminescence on Atomically Precise Silver Clusters.
Advanced Science ( IF 14.3 ) Pub Date : 2020-06-11 , DOI: 10.1002/advs.202000738 Si Li 1 , Zhi-Ping Yan 2 , Xin-Lei Li 1 , Yu-Jin Kong 1 , Hai-Yang Li 1 , Guang-Gang Gao 3 , You-Xuan Zheng 2 , Shuang-Quan Zang 1
Advanced Science ( IF 14.3 ) Pub Date : 2020-06-11 , DOI: 10.1002/advs.202000738 Si Li 1 , Zhi-Ping Yan 2 , Xin-Lei Li 1 , Yu-Jin Kong 1 , Hai-Yang Li 1 , Guang-Gang Gao 3 , You-Xuan Zheng 2 , Shuang-Quan Zang 1
Affiliation
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The weakly coordinated anionic nitrate ligands in a centrosymmetric Ag20 cluster are replaced in a stepwise manner by chiral amino acids and two achiral luminescent sulfonic‐group‐containing ligands while nearly maintaining the original silver(I) cage structure. This surface engineering enables the atomically precise Ag20 clusters to exhibit the high‐efficiency synergetic effects of chirality and fluorescence, producing rare circularly polarized luminescence among the metal clusters with a large dissymmetry factor of (|glum|) ≈ 5 × 10−3. This rational approach using joint functional ligands further opens a new avenue to diverse multifunctional metal clusters for promising applications.
中文翻译：
原子精确银团簇圆偏振发光的逐步实现。
中心对称Ag 20簇中的弱配位阴离子硝酸盐配体被手性氨基酸和两个非手性发光含磺酸基配体逐步取代，同时几乎保持了原始的银（I）笼结构。这种表面工程使得原子级精确的Ag 20团簇能够表现出手性和荧光的高效协同效应，在金属团簇中产生罕见的圆偏振发光，具有大的不对称因子(|g lum |) ≈ 5 × 10 -3。这种使用联合功能配体的合理方法进一步为多种多功能金属簇的有前景的应用开辟了一条新途径。
更新日期：2020-08-05
中文翻译：
原子精确银团簇圆偏振发光的逐步实现。
中心对称Ag 20簇中的弱配位阴离子硝酸盐配体被手性氨基酸和两个非手性发光含磺酸基配体逐步取代，同时几乎保持了原始的银（I）笼结构。这种表面工程使得原子级精确的Ag 20团簇能够表现出手性和荧光的高效协同效应，在金属团簇中产生罕见的圆偏振发光，具有大的不对称因子(|g lum |) ≈ 5 × 10 -3。这种使用联合功能配体的合理方法进一步为多种多功能金属簇的有前景的应用开辟了一条新途径。
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