A phosphorescent copper(I) complex: Synthesis, characterization, photophysical property, and oxygen-sensing behavior

Wen, Caihong; Tao, Guoquan; Xu, Xinhua; Feng, Xu; Luo, Rongcheng

doi:10.1016/j.saa.2011.04.067

Cited by 27 publications

(12 citation statements)

References 19 publications

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“…357,358 The crystals can be excited in the near-UV at B375 nm to emit yellow-green luminescence with a maximum at 540 nm. Another phosphorescent copper(I) complex 359 with an RTP phosphorescence peaking at 545 nm and a long excited state lifetime (4.7 ms) was incorporated into electrospun composite nanofibers of polystyrene to obtain an oxygen sensing material with a sensitivity (I 0 /I 100 ) of 7.2 and a response time of 7 s. No photobleaching was detectable. The exceptionally long-lived luminescence of certain [Cu(I)(isocyanido) 2 (phen)] + complexes in the form of nanoporous crystals may also be exploited for sensing oxygen.…”

Section: Metalloporphyrins With Large Q-band Absorption and Nir Emissmentioning

confidence: 99%

Optical methods for sensing and imaging oxygen: materials, spectroscopies and applications

2014

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We review the current state of optical methods for sensing oxygen. These have become powerful alternatives to electrochemical detection and in the process of replacing the Clark electrode in many fields. The article (with 694 references) is divided into main sections on direct spectroscopic sensing of oxygen, on absorptiometric and luminescent probes, on polymeric matrices and supports, on additives and related materials, on spectroscopic schemes for read-out and imaging, and on sensing formats (such as waveguide sensing, sensor arrays, multiple sensors and nanosensors). We finally discuss future trends and applications and summarize the properties of the most often used indicator probes and polymers. The ESI† (with 385 references) gives a selection of specific applications of such sensors in medicine, biology, marine and geosciences, intracellular sensing, aerodynamics, industry and biotechnology, among others.

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Section: Metalloporphyrins With Large Q-band Absorption and Nir Emissmentioning

confidence: 99%

Optical methods for sensing and imaging oxygen: materials, spectroscopies and applications

2014

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“…They are essentially metal-based orbitals with some contribution of the styryl ligand for diimine complexes (C3, C4 and C5), whereas they are delocalized over the metal and phosphines for complexes with DPEphos (C1 and C2), in agreement with literature data. [53][54][55] Besides, the energy spacing between HOMO-1 and HOMO-2 is larger for bisphosphine complexes while it is weaker in bisdiimine complexes. On the other hand, the LUMO and LUMO+1 are localized on the pyridyl moieties of styryl bipyridine for mixed [Cu(P^P)(N^N)]PF 6 complexes, while in bisdiimine complexes the LUMO+1 is fully localized on L1 and its energy is close to the LUMO (fully residing on the styryl bipyridine).…”

Section: Computational Studymentioning

confidence: 99%

Heteroleptic diimine copper(i) complexes with large extinction coefficients: synthesis, quantum chemistry calculations and physico-chemical properties

et al. 2013

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Using the HETPHEN approach, five new heteroleptic copper(I) complexes composed of a push-pull 4,4'-styryl-6,6'-dimethyl-2,2'-bipyridine ligand and a bulky bis[(2-diphenylphosphino)phenyl]-ether (DPEphos) or a bis2,9-mesityl phenanthroline (Mes2Phen) were prepared and characterized by electronic absorption spectroscopy, electrochemistry, and TD-DFT calculations. These complexes exhibit very intense absorption bands in the visible region with extinction coefficient in the range of 5-7 × 10(4) M(-1) cm(-1). The analysis of the position, intensity and band shape indicates a strong contribution from an intra-ligand charge-transfer transition centered on the styrylbipyridine ligand along with MLCT transitions. These new complexes experimentally demonstrate that good light harvesting properties with bis-diimine copper(I) complexes are a reality if one chooses suitable ligands in the coordination sphere. This constitutes a milestone towards using bis-diimine copper(I) complexes for solar energy conversion (artificial photosynthesis and solar cells).

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“…During the last decade, phosphorescent Cu(I) complexes have gained increasing interest for their potential applications in organic light emitting diodes (OLEDs), [1][2][3][4][5][6] light emitting electrochemical cells (LEECs), [7][8] chemosensor [9][10][11][12][13] and photocatalysts. [14][15][16][17][18] One of the most important reason is that Cu(I) complexes are low-cost, high-abundant and environmentally benign, compared to Ru(II), Ir(III) and Pt(II) metal complexes.…”

Section: Introductionmentioning

confidence: 99%

Three Luminescent Dinuclear Copper(I) Complexes with P˄N Ligands: Synthesis, Photophysical Properties, DFT Calculations and AIE Behavior

Dou

Xiao

et al. 2021

ChemistrySelect

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Three new BPTA-bridged binuclear copper(I) complexes bearing three different diphosphine ligands, namely, [(Cu I ) 2 (Xantphos) 2 (BPTA)](BF 4 ) 2 (Cu1), [(Cu I ) 2 (Dppp) 2 (BPTA)](BF 4 ) 2 (Cu2), and [(Cu I ) 2 (Binap) 2 (BPTA)](BF 4 ) 2 (Cu3), have been synthesized and characterized. The X-ray structure analyses of complex Cu3 show that the central copper(I) ion adopts a distorted tetrahedral geometry. Complexes Cu1 and Cu2 exhibit greenish-yellow emission with excited-state lifetime (13μs and 27μs) and photoluminescence quantum yields (6.86 % and 0.62 %) at room temperature in the solid state. Emission decay measurement and theoretical calculation suggest that the transition nature of their emission could be assigned to 3 MLCT/ 3 LC excited states. More interesting, complexes Cu1-Cu3 are weakly emissive in solution but become strongly luminescent in solid state, so it has the aggregation induced emission (AIE) behavior.

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A phosphorescent copper(I) complex: Synthesis, characterization, photophysical property, and oxygen-sensing behavior

Cited by 27 publications

References 19 publications

Optical methods for sensing and imaging oxygen: materials, spectroscopies and applications

Optical methods for sensing and imaging oxygen: materials, spectroscopies and applications

Heteroleptic diimine copper(i) complexes with large extinction coefficients: synthesis, quantum chemistry calculations and physico-chemical properties

Three Luminescent Dinuclear Copper(I) Complexes with P˄N Ligands: Synthesis, Photophysical Properties, DFT Calculations and AIE Behavior

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