Abstract Phenanthroline ligands bearing two biphenyl ( L1 ) or tetraarylbenzene L2 substituents have been synthetized and used to prepare bis‐phenanthroline copper(I) complexes. Steric constraints are limited in the case of biphenyl‐substituted ligand [Cu( 2 ](BF 4 has obtained by reaction with [Cu(CH 3 CN) ). In contrast, large enough totally prevent formation corresponding homoleptic complex....

Two new heteroleptic iridium(III) complexes bearing an aryldiazoimidazole ligand are reported. These complexes differ structurally with respect to the protonation state of the imidazole ring, but can be independently accessed by varying the synthetic conditions. Their structures have been unequivocally confirmed by X-ray crystal structure analysis, with surprising differences in the structural ...

Benzoylthiourea derivatives containing heterocyclic moiety strongly coordinate and stabilize the organometallic fac-[Re(CO)3]+ core forming both monomer multimer organorhenium(I) complexes. The reaction of isophthaloyl dichloride with potassium thiocyanate in acetone followed by addition diphenylamine led to a novel benzoylthiourea derivative triazinethione ligand, typically 3-(4-(diphenylamino...

The combination of π-donating amido with π-accepting pyridine coordination units in a tridentate chelate ligand causes strong nephelauxetic effect homoleptic CrIII complex, which shifts its luminescence to the NIR-II spectral range. Previously explored polypyridine complexes typically emit between 727 and 778 nm (in red NIR-I region), design strategies have so far concentrated on optimizing fie...

A series of heteroleptic quinolinolate pentacoordinated nickel(ii) complexes, [Ni(mcN(3))(R(1),R(2),R(3)-8-hq)](PF(6)), were synthesized and characterized by spectroscopic methods. Single-crystal X-ray diffraction studies for [(Me(3)-mcN(3))Ni(N,O-2-CN-8-hq)][PF(6)] (6a), [(Me(4)-mcN(3))Ni(N,O-8-hq)][PF(6)] (2b) and [(Me(4)-mcN(3))Ni(N,O-5,7-I(2)-8-hq)][PF(6)] (5b) indicate that these complexes...

The P,P-chelate ligand (rac)-4 was prepared starting from the α-dimethylamino-[3]ferrocenophane by a series of directed ortho-lithiation, phosphination with ClPPh2 and substituent exchange using HPPr2. Treatment with two molar equivalents of (Me2S)AuCl subsequently gave the corresponding κP,κP(AuCl)2 complex (rac)-9. In similar sequences the α-PCy2/o-PPh2 ligands (S,S,Spl)2 and the “substituent...

the present work describes the studies on the coordination behaviour of 4[n-(benzalidene) amino]antipyrine semicarbazone (baaps) (i), 4[n-(furfural)amino]antipyrine semicarbazone (ffaaps) (ii) and 4[n-(cinnamalidene)amino]antipyrine semicarbazone (caaps) (iii) in presence of dimethyl sulfoxide (dmso) or diphenyl sulfoxide (dpso) towards th4+ and uo22+ salts. all the complexes were isolated in n...

We report the synthesis of copper(I) complexes of three ligands which contain a potential P,N,N,P-metal binding site. Elemental analysis confirms that the bulk products possess a composition of [CuL][PF6] where L = 1, 2 or 3. Electrospray mass spectrometry (ESI MS) provides evidence for speciation in MeCN or MeOH solutions and the formation of both [CuL]+ and [Cu2L2]2+; addition of NaCl to the ...