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您的检索式：作者名="Ian D.Williams"
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| 1 | How do molecular interactions affect fluorescence behavior of AIEgens in solution and aggregate states?显示文摘Molecular interactions are crucial in diverse fields of protein folding,material science,nanotechnology,and life origins.Although mounting experimental research controls luminescent behavior by adjusting molecular interactions in light-emitting materials,it remains elusive to correlate microscopic molecular interactions with macroscopic luminescent behavior directly.Here,we synthesized three red luminogens with subtle structural variation and investigated the influence of molecular interactions on their luminescent behavior in solution and aggregate states.Our results indicate that strongπ-πand D-A interactions in both dilute solution(between luminogen and solvent molecules)and aggregate(between luminogens)states cause the redshift in emission,while weak interactions(e.g.,Van der Waals,C–H…π,and C–H…F interactions)enhance the quantum yield.This work provides a thoughtful investigation into the complicated influence of various molecular interactions on luminescent behavior. | Ying Yu Hao Xing Zhicong Zhou Junkai Liu Herman H-YSung Ian D.Williams Jonathan E.Halpert Zheng Zhao Ben Zhong Tang | 2022 | Science China Chemistry2022，65，1： | 1 |
| 2 | β-Octafluorinated tetrakis(ethoxycarbonyl)porphyrin显示文摘Tetrakis(all | Hua-Hua Wang Yi-Yu Jiang Mian HR Mahmood Hai-Yang Liu Herman H.Y.Sung Ian D.Williams Chi K.Chang | 2015 | Chinese Chemical Letters2015，26，5： | 1 |
| 3 | A Simple Approach to Achieve Organic Radicals with Unusual Solid-State Emission and Persistent Stability显示文摘Sable organic radicals are promising materials for information storage,molecular magnetism,electronic devices,and biological probes.Many organic radicals have been prepared,but most are non-or weakly emissive and degrade easily upon photoexcitation.It remains challenging to produce stable and efficient luminescent radicals because of the absence of general guidelines for their synthesis.Herein,we present a photoactivation approach to generate a stable luminescent radical from tris(4-chlorophenyl)phosph ine(TCPP)with red emission in the crystal state.The mechanistic study suggests that the molecular symmetry breaking in the crystal causes changes of molecular conformation,redox properties,andmolecular packing that facilitates radical generation and stabilization.This design strategy demonstrates a straightforward approach to develop stable organic luminescent radicals that will open new doors to photoinduced luminescent radical materials. | Xueqian Zhao Junyi Gong Parvej Alam Chao Ma Yanpei Wang Jing Guo Zebin Zeng Zikai He Herman H.Y.Sung Ian D.Williams Kam Sing Wong Sijie Chen Jacky W.Y.Lam Zheng Zhao Ben Zhong Tang | 2022 | CCS Chemistry2022，4，6： | 0 |
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