三吡啶
化学
吡啶
质子化
氢键
离子
分子间力
乙腈
光化学
药物化学
分子
有机化学
金属
作者
Naokazu Yoshikawa,Shoko Yamazaki,N. Kato,Mika Sawai,Kaoru Noda,Nobuko Kanehisa,Eiji Nakata,Hiroshi Takashima
标识
DOI:10.1002/slct.201904062
摘要
Abstract Intense blue emissions were obtained by the interaction between protonated pyridine rings and the adjacent anion or adjacent PF 6 − . These compounds possess hydrogen bonds, which restrain the nonradiative decay to produce strong emission. By reacting of (L=terpy, tterpy and Clterpy) with a variety of acid (HF, HCl, HBr, H 2 SO 4 and H 3 PO 4 ) in water, triprotonated and diprotonated compounds [LH 3 ] 3+ and [LH 2 ] 2+ were prepared. Abbreviations used are terpy=2,2’:6’,2’’‐terpyridine, tterpy=4’‐(4‐tolyl)‐2,2’:6’,2’’‐terpyridine and Clterpy=4’‐Chloro‐2,2’:6’,2’’‐terpyridine. Intense emission in acetonitrile ( Φ = 0.30) was obtained by attaching two protons to the nitrogen in [(tterpyH 2 )H 2 O] 2+ and intermolecular hydrogen bonds to the two adjacent F − atoms in PF 6 − .
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