3515-34-2Relevant academic research and scientific papers
Cobalt-catalyzed cross-coupling reactions of aryl- And alkylaluminum derivatives with (hetero)aryl and alkyl bromides
Dilauro, Giuseppe,Messa, Francesco,Bona, Fabio,Perrone, Serena,Salomone, Antonio
supporting information, p. 10564 - 10567 (2021/10/19)
A simple cobalt complex, such as Co(phen)Cl2, turned out to be a highly efficient and cheap precatalyst for a host of cross-coupling reactions involving aromatic and aliphatic organoaluminum reagents with aryl, heteroaryl and alkyl bromides. New C(sp2)-C(sp2) and C(sp2)-C(sp3) bonds were formed in good to excellent yields and with high chemoselectivity, under mild reaction conditions.
STRUCTURE AND LUMINESCENT PROPERTIES OF COORDINATION POLYMERS CONTAINING LEAD(II) AND THIOPHENE LIGANDS
Dubskikh, V. A.,Dybtsev, D. N.,Fedin, V. P.,Lysova, A. A.,Ryadun, A. A.,Samsonenko, D. G.,Samsonov, V. A.
, p. 1800 - 1809 (2020/12/28)
Abstract: Three new metal-organic framework polymers [Pb2(btdc)2] (1), [Pb3(ttdc)3(dma)2] (2), and [Pb(ttdc)(dma)] (3) (H2btdc = 2,2′-bithiophene-5,5′-dicarboxylic acid, H2ttdc = thieno[3,2-b]thiophene-2,5-dicarboxylic acid, dma = N,N-dimethylacetamide) are synthesized under solvatothermal conditions. The compounds are characterized by single crystal and powder X-ray diffraction, elemental, thermogravimetric, and IR spectroscopic analyses. All three compounds are three-dimensional coordination polymers with layered (1) or chain (2, 3) motifs. The study of luminescent properties reveals the intraligand nature of radiative transitions. For 1 luminescence quenching is observed because of the strengthening of vibrational states and long-range interactions between π-systems of thiophene groups. The luminescence spectrum of 2 contains two bands corresponding to two types of ttdc2– ligands with principally different structural environments. For the ligands isolated from each other the position of the luminescence maximum corresponds to that of the free ttdc2– ion. For the ligands associated in closely packed chains by continuous π-stacking the appearance of a new maximum in the red range is observed, which is due to the delocalization of electron orbitals.
Non-covalent bridging of bithiophenes through chalcogen bonding grips
Babudri, Francesco,Biot, Nicolas,Bonifazi, Davide,Romito, Deborah
supporting information, p. 6732 - 6738 (2020/05/16)
In this work, chalcogen functionalized dithiophenes, equipped on both extremities with chalcogen-bonding recognition heterocycles, have been prepared following two synthetic pathways. The insertion of the chalcogenazolo[5,4-β]pyridine allows the control of the organization at the solid state. X-Ray diffraction analysis of the single crystals, showed that the Te-doped derivatives give the most persistant assemblies, with the molecules arranging at solid-state in wire-like polymeric structures through Te?N interactions. As expected, the introduction of the Se and Te atoms, dramatically decreases the emission properties, with the Te-bearing congeners being virtually non emissive.
Nitroaromatic sensing with a new lanthanide coordination polymer [Er2(C10H4O4S2)3(H2O)6]:N assembled by 2,2′-bithiophene-5,5′-dicarboxylate
Einkauf, Jeffrey D.,Ortega, Raul E.,Mathivathanan, Logesh,De Lill, Daniel T.
supporting information, p. 10929 - 10934 (2017/10/03)
A new three dimensional lanthanide-containing coordination polymer composed of 2,2′-bithiophene-5,5′-dicarboxylic acid ([Er2(C10H4O4S2)3(H2O)6]n) was solvothermally synthesized and characterized using single crystal X-ray diffraction, PXRD, FTIR, TGA, and luminescence measurements. The emission of this compound dispersed in ethanol is linker based and is quenched upon addition of nitroaromatic species due to a charge transfer from the MOF to the nitroaromatic species. This compound is able to sense a variety of nitroaromatic species, but is particularly sensitive to nitrophenols and nitroaniline.
HETEROARYLCARBOXYLIC ACID ESTER DERIVATIVE
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Page/Page column 47, (2012/11/06)
The present invention provides a hyperglycemic inhibitor having a serine protease inhibitory action, which is a novel prophylactic or therapeutic drug for diabetes. A compound represented by the following formula (I), wherein each symbol is as defined in the description, or a pharmaceutically acceptable salt thereof
Novel blue-light-emitting hybrid materials based on oligothiophene acids and ZnO
Jiu, Tonggang,Liu, Huibiao,Fu, Liming,He, Xiaorong,Wang, Ning,Li, Yuliang,Ai, Xicheng,Zhu, Daoben
, p. 113 - 117 (2007/10/03)
Novel blue-light-emitting materials based on ZnO and 2,2′-bithiophene-5,5′-dicarboxylic acid (DTDA), 4′,3″-dipentyl-5,2′: 5′,2″: 5″,2?-quaterthiophene-2,5?-dicarboxylic acid (QTDA) have been prepared. The hybrid materials show that the PL λmax are at 450 and 425 nm for DTDA-ZnO and QTDA-ZnO, respectively.
