Syntheses, structures and photophysical properties of a series of luminescent copper(I) mixed-ligand complexes

Li, Xiuling; Ai, Yu-Bo; Bo, Yang; Chen, Jie; Tan, Min; Xin, Xue-Lian; Shi, Yanhui

doi:10.1016/j.poly.2011.12.040

Cited by 28 publications

(18 citation statements)

References 48 publications

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“…1. Complex 1 exhibit a binuclear structure, which is different 197 from the mononuclear complexes resulting from diimine and chelating diphosphine 198 ligands bdpp, dppp and POP [POP = bis(2-(diphenylphosphanyl)phenyl) ether] 199[23][24][25]. Complex 1 is dppm-bridged dimer of Cu(I).…”

mentioning

confidence: 99%

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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confidence: 99%

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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“…They have been shown to be affective catalysts for avariety of coupling reactions [1, 2].They also exhibit interesting photophysical properties [3,4]. We have reported earlier monometallic mixed-ligand complexes of copper(I) with diimines and phosphinesthat were found to be effective catalysts for the coupling of phenylacetylene with halobenzene [2].…”

Section: Discussionmentioning

confidence: 99%

Crystal structure of (,2-2,2'-bipyrimidine-κ4N1,N1':N3,N3')bis[iodido (t-butyldiphenylphosphane-κP)copper(I)]dimethylformamide disolvate, C40H44Cu2I2N4P2·2(C3H7NO), C46H58Cu2I2N6O2P2

Fettouhi

2014

Zeitschrift Für Kristallographie - New Crystal Structures

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Source of materialSynthesiso ft he complex (bpm)[(t-Bu)Ph 2 P] 2 Cu 2 I 2 ×2DMF: CuI (1 mmol, 0.190 g), (t-Bu)Ph 2 P( 1m mol, 0.242 g) and 2,2'-bipyrimidine (0.5 mmol, 0.079 g) were reacted in dimethylformamide (35 mL) at 65°C for 2h ours. The red solution was then filtered. Red crystals suitable for X-ray diffraction were obtained by slow evaporation after few days. Experimental detailsAll hydrogen atomswere included at calculated positions using a riding model with C-H distances of 0.93 Åfor sp 2 carbons and 0.96 Åf or sp 3 carbons. Thei sotropic displacement parameters were U iso (H) =1.2U eq (C) andU iso (H) =1.5U eq (C), respectively. DiscussionCopper (I) mixed-ligand complexes with imines and phosphines present various attracting chemical and physical properties. They have been shown to be affective catalysts for avariety of coupling reactions [1, 2].They also exhibit interesting photophysical properties [3,4]. We have reported earlier monometallic mixed-ligand complexes of copper(I) with diimines and phosphinesthat were found to be effective catalysts for the coupling of phenylacetylene with halobenzene [2]. Extending our work to bimetallic species,wereportherein the synthesis and X-Ray structure of abimetallic mixed-ligand copper(I) iodido complex based on 2,2'-bipyrimidine (bpm)a nd t-butyldiphenylphosphine. The asymmetric unit contains one half-molecule of the complex (bpm)[(tBu)Ph 2 P] 2 Cu 2 I 2 and one dimethylformamide molecule. The 2,2'-bipyrimidine ligand bridges two copper(I) ions that are additionally bonded to an iodido ligand and the phosphorus atom of the (tBu)Ph 2 Pligand in adistorted tetrahedral geometry. The chelate angle N1-Cu1-N2ii is 78.03(6)°(ii =2 -x,1-y,-z)a nd the P1-Cu1-I1 angle is 118.73(2)°. The N-Cu-P bond angles are in the range 116.24(5)-121.16(5)°. The Cu-N and Cu-P bond distances are similar to those found in the literature [5,6 ]. The tbutyldiphenylphosphine ligand adopts an anti configuration with respect to the Cu-I bond with atorsion angle I1-Cu1-P1-C5 of 172.05°. Likewise the t-butyl methyl groups adopt an anti conformation with C8-C5-P1-Cu1 torsion angle of -163.79°. The conformation of the two phenyl rings is characterized by dihedral angles with the C-P-C plane of 62.77°and 34.41°. Each 2,2'-bipyrimidine molecule is involved in non-classical C-H×××Ohy-drogen bondinginteractions with two dimethylformamide molecules.

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“…Similarly, PLQY values obtained under air were chosen over values obtained under an Ar atmosphere where such differentiations were made [31]. A total of 100 compounds were found and their %V bur was calculated for the (NN), (PP) and (NN)(PP) units which are referred to as %V bur (NN), %V bur (PP) and %V bur (NN + PP) (Table S1, supporting information) [17][18][19][20][21][23][24][25][26][27][30][31][32][33][34][35][36][37][38][39][40][41][42][43][44][45][46][47][48]. All compounds contain bidentate diimine and bisphosphane ligands with one exception containing a bidentate diimine and two monodentate triphenylphosphano ligands (CCDC: 1558486) [45].…”

Section: General Strategiesmentioning

confidence: 99%

“…We have recently evaluated the effect that Cu xantphos = 4,5-bis(diphenylphosphanyl)-9,9-dimethyl-9H-xanthene) compounds have on solid-state photoluminescence quantum yield (PLQY) values [19]. Discussions regarding steric shielding of the copper(I) complex cation by the ligands are mostly limited to simplistic comparisons of steric bulk imposed by ligand-substituents [19][20][21][22][23][24][25][26][27]. Therefore, we sought to investigate the usefulness of %V bur with regard to Cu(I)-based iTMCs in lighting devices.…”

Section: Introductionmentioning

confidence: 99%

The Role of Percent Volume Buried in the Characterization of Copper(I) Complexes for Lighting Purposes

2020

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The usefulness of percent volume buried (%Vbur) as a readily quantifiable property is investigated with regard to [Cu(NN)(PP)]+ complexes of interest for lighting purposes. Photoluminescence quantum yields (PLQYs) and single crystal X-ray structures of 100 reported compounds were assembled, %Vbur of the ligand systems were calculated and analyzed for correlations. We found that increased shielding of the central Cu(I) cation relying on shared contributions of both (NN) and (PP) ligand systems led to increased PLQYs. These findings are of relevance for future characterizations of Cu(I)-based complexes and their photophysical behavior in the solid-state.

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Syntheses, structures and photophysical properties of a series of luminescent copper(I) mixed-ligand complexes

Cited by 28 publications

References 48 publications

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

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

Crystal structure of (,2-2,2'-bipyrimidine-κ4N1,N1':N3,N3')bis[iodido (t-butyldiphenylphosphane-κP)copper(I)]dimethylformamide disolvate, C40H44Cu2I2N4P2·2(C3H7NO), C46H58Cu2I2N6O2P2

The Role of Percent Volume Buried in the Characterization of Copper(I) Complexes for Lighting Purposes

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