1032929-68-2Relevant academic research and scientific papers
Novel 2,2′-bipyridine-modified calix[4]arenes: Ratiometric fluorescent chemosensors for Zn2+ ion
Zhang, Jun Feng,Bhuniya, Sankarprasad,Lee, Young Hoon,Bae, Changwan,Lee, Joung Hae,Kim, Jong Seung
, p. 3719 - 3723 (2010)
Two calix[4]arene derivatives with modified bipyridine as binding sites have been designed and synthesized. Compounds 1 and 2 are the first 2,2′-bipyridine-modified calix[4]arene-based sensors that can detect Zn2+ selectively with respect to ratiometric fluorescent changes and red shift. A binuclear complex structure has been demonstrated in the binding modes of 1-Zn2+ and 2-Zn2+ complexes.
Organoplatinum(II) complexes with chromophore-acceptor dyad studied by ultrafast time-resolved absorption spectroscopy
Lai, Siu-Wai,Chen, Yong,Kwok, Wai-Ming,Zhao, Xi-Juan,To, Wai-Pong,Fu, Wen-Fu,Che, Chi-Ming
, p. 60 - 65 (2010)
The photoinduced ET reaction from PtIIchromophore to viologen acceptor in a new ultrafast time-resolved absorption spectroscopy has been reported. Photoinduced electron-transfer (ET) reactions are fundamental steps in photosynthesis, and which have led to extensive investigations into charge-separated species in artificial mimics. The development of the absorption maxima at 395 and 605 nm could be attributed to the formation of methyl viologen radical cation as a result of oxidative decomposition of TEOA. The back ET reaction rate constants of the two platinum (II) systems are slower than the forward electron-transfer reactions, despite the large driving force. Efforts to harness the slow back ET reactions of PtII chromophore acceptor systems for light-induced multi-electron-transfer catalysis are in progress.
Synthesis, crystal structures, one/two-photon optical properties and bioimaging application of two organic molecules with D-A and D-π-A models containing 6-phenyl-2,2′-bipyridine
Liu, Zhaodi,Hao, Fuying,Liu, Jie,Zhu, Yingzhong,Du, Wei,Zhang, Qiong,Wu, Jieying
supporting information, p. 3947 - 3952 (2018/03/06)
Two novel organic compounds with D-A (L1) and D-π-A (L2) models containing 4-(N,N-dipropylamino)phenyl [donor group (D)] and 6-phenyl-2,2′-bipyridine [acceptor (A)] groups were synthesized and characterized by IR, 1H NMR, 13C NMR, MS and single crystal X-ray diffraction. Their photophysical properties were systematically investigated using both experiments and theoretic calculations. It was found that the two-photon action cross-section (δΦ) of the D-π-A model molecule (δΦL2 = 119 GM) was approximately three times larger than that of the D-A type molecule (δΦL1 = 43 GM). Furthermore, their cytotoxicity and applications in bioimaging were determined. The results showed that L1 and L2 could be used as cytoplasmic dyes with high stability and low cytotoxicity.
