1260100-35-3Relevant academic research and scientific papers
Photo-switchable iron-terpyridine complexes functionalized with styrylbenzene unit
Baitalik, Sujoy,Mukherjee, Shruti,Pal, Poulami,Sahoo, Anik
, (2021)
The manuscript deals with synthesis, characterization, photophysics, and reversible trans-cis photoisomerization behaviours of three homoleptic Fe(II)-terpyridine complexes, ([Fe(tpy-pvp-X)2]2+ where X[dbnd]H, Me, and NO2)
Synthesis, structure, and photophysical and electrochemical properties of Ru(ii) complexes of arylene-vinylene terpyridyl conjugates
Sil, Amit,Roy Chowdhury, Sabyasachi,Mishra, Sabyashachi,Patra, Sanjib K.
, p. 9877 - 9888 (2018)
A series of arylene-vinylene π-conjugated terpyridyl ruthenium(ii) complexes, [Ru(PPh3)2Cl(tpy-C6H4-CHCH-Ar)][PF6] (1-4; tpy = 2,2′:6′,2′′-terpyridyl, where Ar = phenyl, tolyl, 1-naphthyl and 9-anthracenyl as substituents at the 4′ position of tpy), have been synthesized and characterized by multinuclear NMR, IR, HRMS and single crystal X-ray crystallography. The influence of the electronic nature of arylene groups on their photophysical and electrochemical properties has been investigated to understand the electronic interaction between the metal-organic redox centers. Furthermore, a σ-donor phenylacetylide group has been incorporated to accomplish [Ph-CC-Ru(PPh3)2(tpy-C6H4-CHCH-Ar)][PF6] (5-8) complexes by the substitution of a coordinated chloride ligand and to investigate the change in their redox and photophysical properties. DFT studies have been performed to gain an insight into their electronic properties by determining the HOMO-LUMO energy levels and frontier molecular orbitals of all the synthesized Ru(ii) complexes.
Synthesis, Structural Characterization, and Luminescence Switching of Diarylethene-Conjugated Ru(II)-Terpyridine Complexes by trans-cis Photoisomerization: Experimental and DFT/TD-DFT Investigation
Pal, Poulami,Mukherjee, Shruti,Maity, Dinesh,Baitalik, Sujoy
, p. 5743 - 5753 (2018)
We synthesized and thoroughly characterized a new family of diarylethene-conjugated mononuclear Ru(II)-terpyridine complexes and investigated in detail their photophysical, electrochemical, and spectroelectrochemical behaviors. Interestingly, the compounds show moderately strong room-temperature luminescence predominantly from their 3MLCT state with luminescence lifetime varying between 8.43 and 22.82 ns. Because of the presence of diarylethene unit, all the monometallic complexes underwent trans-to-cis photoisomerization upon interaction with UV light with substantial changes in their absorption and luminescence spectra. Reverting back from the cis to the trans form is also made possible upon treatment with visible light or by heat. Trans-to-cis isomerization leads to almost complete quenching of luminescence, while backward cis-to-trans isomerization gives rise to restoration of the original luminescence for all the complexes. Thus, on-off and off-on emission switching was made possible upon successive interaction of the complexes with UV and visible light. Computational investigation involving density functional theory (DFT) and time-dependent DFT methods was done for proper assignment of the experimental absorption and emission spectral bands in the complexes. Finally, experimentally observed trend on the absorption and emission spectral behaviors of the complexes upon photoisomerization was also compared with the calculated results.
Synthesis and characterization of para-pyridine linked NHC palladium complexes and their studies for the Heck-Mizoroki coupling reaction
Liu, Ya-Ming,Lin, Yi-Chun,Chen, Wen-Ching,Cheng, Jen-Hao,Chen, Yi-Lin,Yap, Glenn P. A.,Sun, Shih-Sheng,Ong, Tiow-Gan
experimental part, p. 7382 - 7389 (2012/07/31)
This paper describes the synthesis of 1-(pyridine-4-ylmethyl) NHC and their Pd(ii) and Ag(i) complexes, which are fully characterized. Interestingly, we have also synthesized a Pd complex 3a-CO3 using a more direct treatment of K2CO3 with PdCl2. 3a-CO 3 represents the first reported solid structure of a Pd η2-carbonato complex stabilized by an NHC framework. 3a-CO 3 can be easily converted to a PdCl2 derivative by treating it with chloroform. We have found these palladium complexes mediate the Heck-Mizoroki coupling with a low catalyst loading. Furthermore, we also expand such catalytic manifold toward constructing fused polyaromatic substrates, a highly useful class of compounds in optoelectronic chemistry.
A selective colorimetric Hg2+ probe featuring a styryl dithiaazacrown containing platinum(II) terpyridine complex through modulation of the relative strength of ICT and MLCT transitions
Chung, Sung-Kuang,Tseng, Yong-Ren,Chen, Chan-Yu,Sun, Shih-Sheng
scheme or table, p. 2711 - 2713 (2011/05/13)
A series of platinum(II) terpyridine complexes featuring an aminostilbene donor-acceptor framework was synthesized. The complex with a dithiaazacrown moiety exhibits a highly sensitive and selective colorimetric response to a Hg2+ cation throug
Two-photon luminescence from polar bis-terpyridyl-stilbene derivatives of Ir(III) and Ru(II)
Natrajan, Louise S.,Toulmin, Anita,Chew, Alex,Magennis, Steven W.
, p. 10837 - 10846 (2011/01/09)
Four structurally related iridium(iii) and ruthenium(ii) complexes bearing two polar terpyridyl-stilbene derived chromophores 4-(4-{2-[4-(methoxy)phenyl] ethenyl}phenyl)-2,2′-6′,2′′-terpyridine (ttpyeneanisole) and 4-(4-{2-[phenyl]ethenyl}phenyl)-2,2′-6′,
