1176334-04-5Relevant articles and documents
Four-coordinated copper(I) complexes containing variably substituted N-heterocyclic carbenes (NHCs): Synthesis, photophysical properties and theoretical investigation
Wang, Jinglan,Liu, Shaobo,Xu, Shengxian,Zhao, Feng,Xia, Hongying,Wang, Yibo
, p. 351 - 359 (2017)
Three four-coordinated N-heterocyclic carbene (NHC) copper(I) complexes, [Cu(NaphIm-Py)(POP)]PF6 (1), [Cu(AnthrIm-Py)(POP)]PF6 (2), and [Cu(PhBenIm-c-Py)(POP)]PF6 (3) (NaphIm-Py = 3-(naphthalen-2-ylmethyl-1-(pyridin-2-yl)-
Synthetic strategy of diflurophosphate-bridged bimetallic N-heterocyclic carbene complexes: Synthesis, structures and photoluminescence of picolyl-substituted alkylbenzimidazolylidene ligands
Adhikary, Sirsendu Das,Jhulki, Lalmohan,Seth, Saikat,Kundu, Arjama,Bertolasi, Valerio,Mitra, Partha,Mahapatra, Ambikesh,Dinda, Joydev
, p. 239 - 246 (2012)
Starting from the proligands 1-methyl-3- picolylbenzimidazoliumhexaflurophosphate (1) and 1-benzyl-3- picolylbenzimidazoliumhexaflurophosphate (2) Ag(I)-NHC complexes, 1-methyl-3-picolylbenz-imidazolylidenesilver(I)hexaflurophosphate (3) and 1-benzyl-3-picolylbenzimidazolylidenesilver(I)hexaflurophosphate (4) have been synthesized. PO2F2 bridged Ag(I)-bimetallic system (5 and 6) developed from 3 and 4 after treatment of AgPF6 and water. 1-Methyl-3-picolyl-benzimidazolylidene-gold(I)hexaflurophosphate(7) and 1-benzyl-3-picolylbenzimidazolylidenegold(I)hexaflurophosphate (8) have been synthesized by Ag-carbene transmetallation method. Further reaction of AgPF 6 with 7 and 8 build up the heterobimetallic Ag(I)-Au(I) systems (9 and 10); significantly, PO2F2 unit holds two heterobimetallic Ag(I)-Au(I) units together. Solid state structures of 3, 5, 8 and 9 have been determined by X-ray diffraction studies. Closed shell d 10-d10 interactions are ascertained by the luminescence of bimetallic systems 7-10 upon irradiation of UV light.
New structural motifs of silver and gold complexes of pyridine-functionalized benzimidazolylidene ligands
Zhang, Xiaoming,Gu, Shaojin,Xia, Qinqin,Chen, Wanzhi
experimental part, p. 2359 - 2367 (2009/09/30)
Reaction of 1,3-bis(picolyl)benzimidazolium chloride ([HL1]Cl) with Ag2O yields mononuclear complex [Ag(L1)Cl] (2), further reaction of 2 with Au(Et2S)Cl afforded [Au(L1)Cl] (3). Treatment of 2 with AgBF4 gave the trinuclear silver cluster [Ag3(L1)3](BF4)3 (4), whereas the digold complex [Au2(L1)2](BF4)2 (5) can be easily obtained from the carbene transfer reaction of 4 with Au(Et2S)Cl. A one-dimensional coordination polymer {[Ag(L2)](BF4) · CH3CN}n (8) was isolated from the reaction of [Ag(L2)Cl] (7, L2 = 1-benzyl-3-picolylbenzimidazolylidene) with additional Ag+ in good yield. The dinuclear [Ag2(L3)2](PF6)2 (12, L3 = 1,4-di(N-benzylbenzimidazolylidene)but-2-yne) is a 18-membered macrocycle. All these complexes have been structurally characterized. Complex 2 shows a dimeric structure because of intermolecular Ag?Cl interactions. Complex 4 consists of a triangular Ag3 ring with very short Ag-Ag contacts 2.777(1) A?, the Au-Au distance in 5 is 3.206(2) A? showing very weak Au-Au interaction and the macrocyclic cations in 12 are aligned one above another to form channels filled with hexafluorophosphate anions. The complexes 2-5, 8, and 12 are intensely luminescent upon irradiation of uv light, and their emission properties are briefly described.
