87518-61-4Relevant academic research and scientific papers
A new tetradentate mixed aza-thioether macrocycle and its complexation behavior towards Fe(II), Ni(II) and Cu(II) ions
Chan, Siu-Chung,Ng, Sze-Wing,Wong, Chun-Yuen,Yeung, Chi-Fung,Yiu, Shek-Man
, (2020/05/05)
A new tetradentate mixed aza-thioether macrocyclic ligand 2,6-dithia[7](2,9)-1,10-phenanthrolinophane ([13]ane(phenN2)S2) was successfully synthesized. Reacting metal precursors [Fe(CH3CN)2(OTf)2], Ni(ClO4)2·6H2O, and Cu(ClO4)2·6H2O with one equivalent of [13]ane(phenN2)S2 afforded [Fe([13]ane(phenN2)S2)(OTf)2] (1), [Ni([13]ane(phenN2)S2)](ClO4)2 (2(ClO4)2), and [Cu([13]ane(phenN2)S2)(OH2)](ClO4)2 (3(ClO4)2), respectively. The structures of [13]ane(phenN2)S2 and all of its metal complexes were investigated by X-ray crystallography. The [13]ane(phenN2)S2 was found to behave as a tetradentate ligand via its donor atoms N and S.
Re(i) derivatives functionalised with thioether crowns containing the 1,10-phenanthroline subunit as a new class of chemosensors
Casula, Arianna,Nairi, Valentina,Fernández-Moreira, Vanesa,Laguna, Antonio,Lippolis, Vito,Garau, Alessandra,Gimeno, M. Concepción
, p. 18506 - 18517 (2015/11/09)
A series of luminescent fac-[Re(CO)3(L)(NN)]+ complexes, where L is a pyridine or an imidazole and NN is the 1,10-phenanthroline subunit of mixed donor pentadentate thioether crowns have been synthesised and their luminescence properties have been analysed. Then, heterometallic Re(i)/Au(i) complexes, with the Au(i) fragment bonded directly to the imidazole ligand, and heterometallic Re(i)/Ag(i) complexes, with the silver fragment coordinating the S-donor thioether linker of the rings have also been prepared. Analysis of their luminescence properties showed a considerable blue shift of the emission maxima for the Re(i)/Ag(i) derivatives, upon coordination of the silver centre to the S-donor atoms of the aliphatic chain of the macrocyclic units.
Syntheses of 2,9-Bis(halomethyl)-1,10-phenanthrolines: Potential Robust Ligands for Metal Oxidation Catalysts
Beer, Robert H.,Jimenez, Jose,Drago, Russell S.
, p. 1746 - 1747 (2007/10/02)
Free radical halogenation of 2,9-dimethyl-1,10-phenanthroline with N-bromosuccinimide and N-chlorosuccinimide form the known α-methyl derivatives 2,9-bis(trihalomethyl)-1,10-phenanthrolines.The compound 2,9-bis(trichloromethyl)-1,10-phenanthroline can be used for one-step syntheses of oxidatively resistant fluoro- and partially reduced chloromethyl derivatives capable of coordination to metal oxidation catalysts.
Catalytic hydrolysis of phosphate esters by metallocomplexes of 1,10-phenanthroline derivatives in micellar solution
Weijnen, John G. J.,Engbersen, Johan F. J.
, p. 351 - 357 (2007/10/02)
Divalent metal-ion complexes of 2,9-bis-1,10-phenanthroline (C12Phen-MII) in neutral Brij 35 micelles catalyse the hydrolysis of various phosphate triesters, diesters and monoesters.The catalytic activity of C12Phen-MII has been compared with that of the metal-ion complexes of its water-soluble counterpart 2,9-bis-1,10-phenanthroline (C1Phen-MII).Saturation kinetics provide evidence for preliminary formation of ligand-MII-phosphate ester complexes, which decay to products.The hydroysis of diphenyl 4-nitrophenyl phosphate (1b) coordinated to C12Phen-ZnII proceeds 8700 times faster than the hydrolysis of 1b in the absence of metallocatalyst.Kinetic studies indicate that phosphate triesters containing a metal-ion-binding site in close proximity to the phosphoryl bond, i.e., diphenyl 5-nitro-2-pyridyl phosphate (2b) and diphenyl 5-nitro-8-quinolyl phosphate (3), are hydrolysed by the same mechanism as 1b.
