{[Cu2(μ-Cl)(μ-dppm)2](μ2-TCNQ)}∞, a charge transfer compound derived from a donor with a copper dimer

Song, Yong-qin; Lv, Qiying; Zhan, Shu‐Zhong; Wang, Jian-ge; Su, Jia-Yin; Ding, An

doi:10.1016/j.inoche.2008.03.004

Cited by 8 publications

(2 citation statements)

References 33 publications

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“…The recent progress in the successful formation of soluble CPs using didonor compounds and singly bridged di‐palladium(II), −silver(I), and ‐gold(III) and doubly bridged dicopper(I) complexes as acceptors prompts us to present here that the stable triply bridged dicopper(I) carboxylate complexes can also be linked by similar divergent didonor compounds into various soluble coordination oligomers and polymers (Table ). In the literature, triply bridged dicopper(I) CPs are known but prepared from 1:1 salts CuX (X = Cl, I, SCN, OAc), with typical examples of [{Cu 2 (μ‐SCN)(μ‐dppm) 2 }(μ‐SCN)] n , [{Cu 2 (μ‐Cl)(μ‐dppm) 2 }(μ‐TCNQ)} n , [{Cu 2 (μ‐I) 2 (μ‐dppm)}(μ‐bpy)} n , [{Cu 2 (μ‐I) 2 (μ‐dcpm)}(μ‐bpy)} n , and [{Cu 2 (μ‐SePh) 2 (μ‐dppm)}(μ‐bpy)} n (dppm = Ph 2 PCH 2 PPh 2 , TCNQ = 7,7,8,8‐tetracyanoquinodimethane, dcpm = Cy 2 PCH 2 PCy 2 , Cy = cyclohexyl, bpy = 4,4′‐dipyridine). However, the presence of oligomeric complexes or intermediates is not described in the published articles .…”

Section: Introductionmentioning

confidence: 99%

“…In the literature, triply bridged dicopper(I) CPs are known but prepared from 1:1 salts CuX (X = Cl, I, SCN, OAc), with typical examples of [{Cu 2 (μ‐SCN)(μ‐dppm) 2 }(μ‐SCN)] n , [{Cu 2 (μ‐Cl)(μ‐dppm) 2 }(μ‐TCNQ)} n , [{Cu 2 (μ‐I) 2 (μ‐dppm)}(μ‐bpy)} n , [{Cu 2 (μ‐I) 2 (μ‐dcpm)}(μ‐bpy)} n , and [{Cu 2 (μ‐SePh) 2 (μ‐dppm)}(μ‐bpy)} n (dppm = Ph 2 PCH 2 PPh 2 , TCNQ = 7,7,8,8‐tetracyanoquinodimethane, dcpm = Cy 2 PCH 2 PCy 2 , Cy = cyclohexyl, bpy = 4,4′‐dipyridine). However, the presence of oligomeric complexes or intermediates is not described in the published articles . Both experimental and theoretical evidences will be described below to support presence of dynamic equilibria formed by tribridged dicopper(I) complex cations [Cu 2 (μ‐dppm) 2 (μ‐O 2 CR)] + and neutral dipyridyl compounds and the probable species involved in the equilibria.…”

Section: Introductionmentioning

confidence: 99%

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Linking Tribridged Dicopper Complexes with Neutral Dipyridyl Compounds to Coordination Oligomers and Polymers

Shiu

Chuang

et al. 2016

Journal of the Chinese Chemical Society

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The stable tribridged dicopper(I) carboxylate complexes [Cu2(μ‐dppm)2(μ‐O2CR)]BF4 (RCO2 − = formate (OFc−), m1; acetate (OAc−), m2; benzoate (OBAc−), m3; o‐toluate (O2TAc−), m4; p‐toluate (O4TAc−), m5; 4‐phenylbutyrate (O4PBAc−), m6; 2‐nitrobenzoate (O2NBAc−), m7), abbreviated as MM, and neutral dipyridyl compounds (NN; NN = 4,4′‐bipyridine (bpy), 1,2‐bis(4‐pyridyl)ethane (bpa), trans‐1,2‐bis(4‐pyridyl)ethylene (bpe), 4,4′‐trimethylenedipyridine (tmp)) can form dynamic equilibria in CH2Cl2. From the equilibrium mixtures containing MM and NN with MM/NN = 1:1, nine 2:1 oligomers ([(m1)2(μ‐bpy)](BF4)2 (o1a(BF4)2), [(m3)2(μ‐bpe)](BF4)2 (o3c(BF4)2), [(m3)2(μ‐tmp)](BF4)2 (o3d(BF4)2), [(m4)2(μ‐bpe)](BF4)2 (o4c(BF4)2), [(m5)2(μ‐bpy)](BF4)2 (o5a(BF4)2), [(m5)2(μ‐tmp)](BF4)2 (o5d(BF4)2), [(m6)2(μ‐bpa)](BF4)2 (o6b(BF4)2), [(m7)2(μ‐bpy)](BF4)2 (o7a(BF4)2), [(m7)2(μ‐bpa)](BF4)2 (o7b(BF4)2)), one 2:3 oligomer ([{(m2)(bpy)}2(μ‐bpy)](BF4)2 (o2a(BF4)2)), and five 1:1 polymers ([(m2)(μ‐bpe)] n (BF4 ) n (p2c(BF4 ) n ), [(m2)(μ‐tmp)] n (BF4 ) n (p2d(BF4 ) n ), [(m3)(μ‐bpy)] n (BF4 ) n (p3a(BF4 ) n ), [(m3)(μ‐tmp)] n (BF4 ) n (p3d(BF4 ) n ), [(m7)(μ‐tmp)] n (BF4 ) n (p7d(BF4 ) n )) were obtained as single crystals, and their structures were determined by X‐ray crystallography. Both experimental and theoretical results support the presence of two oligomeric species, [{Cu2(μ‐dppm)2(μ‐O2CR)}2(μ‐NN)]2+ and [{Cu2(μ‐dppm)2(μ‐O2CR)(NN)}2(μ‐NN)]2+), in dynamic equilibrium. The oligomers (such as o3d(BF4)2) can serve as seeds to induce the formation of soluble coordination polymers as crystals (such as p3d(BF4)n).

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Linking Tribridged Dicopper Complexes with Neutral Dipyridyl Compounds to Coordination Oligomers and Polymers

Shiu

Chuang

et al. 2016

Journal of the Chinese Chemical Society

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Mediated Electron Transfer Across Supported Bilayer Lipid Membrane with TCNQ‐Based Organometallic Compounds

Yang

et al. 2010

Electroanalysis

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Supported bilayer lipid membrane (s-BLM) containing one-dimensional compound 1, TCNQ-based (TCNQ ¼ 7,7,8, organometallic compound {(Cu 2 (m-Cl)(m-dppm) 2 )(m 2 -TCNQ)} 1 , was prepared and characterized on the self-assembled monolayer (SAM) of 1-octadecylmercaptan (C 18 H 37 SH) deposited onto Au electrode. Cyclic voltammetry (CV) and electrochemical impedance spectroscopy (EIS) results showed that the compound 1, dotted inside s-BLM, can act as mediator for electron transfer across the membrane. Two redox peaks and the charge-transfer resistance of 400 kW were observed for compound 1 inside s-BLM. The mechanism of the electron transfer across s-BLM by TCNQ is by electron hopping while TCNQ-based organometallic compound is by conducting. Further conclusion drawn from this finding is that the TCNQ-based organometallic compound embedded inside s-BLM exhibits excellent electron transfer ability than that of free TCNQ. This opens a new path for the development of s-BLM sensor and/or biosensor by incorporation with TCNQ-based organometallic compounds. s-BLM has attracted extensive interest in recent years [5] and TCNQ as modifiers to mediate the electron transport through the s-BLM [6] has been found. Recently, electrochemical method in controlling the synthesis, morphology, and fabrication of TCNQ-based organometallic compounds has been employed [7]. However, the electrochemical property of TCNQ-based organometallic compounds inside s-BLM remains unknown. In this paper we mainly concern with electronic processes in s-BLM containing one-dimensional compound 1 {(Cu 2 (m-Cl)(m-dppm) 2 )(m 2 -TCNQ)} 1 [8]. We wonder whether the compound 1, one typical molecule of TCNQ-based organometallic compounds, dotted inside s-BLM could behave as an electronic conductor and partake in redox reactions at the membrane/solution interfaces as well as TCNQ.The electrochemical response of the free TCNQ and TCNQ-based organometallic compound in organic solution is preliminary studied. (Fig. 1b), presumably involving the electron transfer at Cu(I) centers [8]. Additionally, two reversible peaks at E red1 ¼ 0.13 V and E red2 ¼ À 0.38 V (Fig. 1c) were observed, processing at unusually high potentials, which can be attributed to the TCNQ ligand. On the other hand, free TCNQ in the solution has E red1 ¼ À 0.32 V and E red2 ¼ À 0.97 V (Fig. 1d), respectively. Thus, the compound 1 as well as TCNQ was typical electron acceptor and donor conductor, which are suitable to be dotted inside the BLM to transfer electron.With these desired properties in mind, we further explore whether the compound 1, when embedded inside the BLM, could transfer electron across the membrane and have effects on the electrical property of s-BLM. (Fig. 1). The positive shift of the peak potential for 1@LC/SAM/Au electrode can be attributed to addiShort Communication

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Synthesis, structure, terahertz spectroscopy and luminescent properties of copper (I) complexes with bis(diphenylphosphino)methane and N-donor ligands

Fan

et al. 2015

Journal of Molecular Structure

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{[Cu2(μ-Cl)(μ-dppm)2](μ2-TCNQ)}∞, a charge transfer compound derived from a donor with a copper dimer

Cited by 8 publications

References 33 publications

Linking Tribridged Dicopper Complexes with Neutral Dipyridyl Compounds to Coordination Oligomers and Polymers

Linking Tribridged Dicopper Complexes with Neutral Dipyridyl Compounds to Coordination Oligomers and Polymers

Mediated Electron Transfer Across Supported Bilayer Lipid Membrane with TCNQ‐Based Organometallic Compounds

Synthesis, structure, terahertz spectroscopy and luminescent properties of copper (I) complexes with bis(diphenylphosphino)methane and N-donor ligands

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