A new coordination tetramer of copper(I) iodide and benzyldimethylamine: tetra-μ<sub>3</sub>-iodido-tetrakis[(benzyldimethylamine-κ<i>N</i>)copper(I)]

Yang, Shuying; Li, Yuebao; Cui, Yu-Jie; Pan, Jianguo

doi:10.1107/s1600536809026208

Cited by 3 publications

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References 4 publications

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“…The structure can alternatively be viewed as a compressed Cu 4 tetrahedron with each face capped by a μ 3 -iodine. Such arrangements have been noted by others, for example, [(BzMe 2 N)CuI] 4 and [[(CH 2 CH)C 5 H 4 FeC 5 H 4 )Ph 2 P]CuI] 4 . Cu–I and Cu–N bonds in 3 are comparable with the average data across a range of Cu 4 I 4 (py) 4 compounds [2.040 (Cu–N), 2.696 (Cu–I)], but the Cu–N bonds are notably shorter in 3 than in either of the two specific examples cited (Table ).…”

Section: Resultssupporting

confidence: 63%

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New Multi-Ferrocenyl- and Multi-Ferricenyl- Materials via Coordination-Driven Self-Assembly and via Charge-Driven Electro-Crystallization

et al. 2013

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Three new tetra-ferrocenylethynylpyridinyl copper complexes, L4(CuI)4 (3), L4(CuBr)2 (4), and L4(CuCl)2 (5) have been prepared from the reaction of ferrocenylethynylpyridine (L)(2) with copper halides CuX (with X = I(-), Br(-), Cl(-)).The ligand 2 and the complexes 3-5 have been fully characterized by spectroscopic methods. The structures of 2-4 have been confirmed by single-crystal X-ray crystallography. 2 forms a dimer in the crystalline-state through C-H··N hydrogen bonds. 4 and 5 are dimers and 3 a tetramer, in all cases linked through Cu-X··Cu bridging interactions. Cyclic voltammetry in dichloroethane showed chemically reversible multiferrocenyl oxidation signals with evidence for product electro-crystallization. The oxidation products were isolated by electrodeposition onto a Pt disc electrode and investigated by scanning electron microscopy which confirmed the spontaneous formation of crystalline oxidation products with distinctive morphologies. Energy dispersive X-ray elemental analysis shows the presence of hexafluorophosphate (counterion) with the P:Fe ratio of 1:1, 0.5:1, and 1:1 for the electrocrystallized products 3, 4, and 5, respectively, suggesting the formulas [3](4+)(PF6(-))4, [4](2+)(PF6(-))2, and [5](4+)(PF6(-))4 for the electro-crystallized products.

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Section: Resultssupporting

confidence: 63%

“… a X = appropriate halogen, specifically Br ( 4 ), I ( 3 ). b Ref . c Ref . d Ref . e Ref . f Ref . g Fc′ = [(CH 2 CH)C 5 H 4 ]Fe(C 5 H 4 ). h X = P. …”

Section: Resultsmentioning

confidence: 99%

New Multi-Ferrocenyl- and Multi-Ferricenyl- Materials via Coordination-Driven Self-Assembly and via Charge-Driven Electro-Crystallization

et al. 2013

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Network formation and photoluminescence in copper(i) halide complexes with substituted piperazine ligands

et al. 2012

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The synthesis, X-ray structures and photophysics of ten complexes of CuX (X = I or Br) with bridging N-substituted and N,N'-disubstituted piperazines (Pip) are presented. Depending on the steric demand of the Pip substituents, the complexes fall into four categories: (CuX)(4)(Pip)(2), which are networks of linked Cu(4)X(4) cubane units, (CuX)(2)(Pip), which are chains of linked Cu(2)X(2) rhombs, and (CuX)(2)(Pip)(2) or (CuX)(4)(Pip)(4), which are simple rhomboid dimers and cubane tetramers. A combination of spectroscopic studies and DFT calculations was used to investigate the luminescence of the products. The results suggest that the relatively high energy emission seen in dimers is due to cluster-centred (XMLT/metal-centred) excitations for the aliphatic amines and MLCT (d →π*) for aromatic amines, and low energy emission seen in the tetramers is the result of cluster-centred transitions. The (CuI)(2)(Pip) complexes act as sensor materials, undergoing irreversible reaction with aliphatic and aromatic amines (Nu) in the vapour state, irreversibly producing cubanes (CuI)(4)Nu(4), with corresponding production of long wavelength emission.

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Structural and Luminescence Properties of Cu(I)X-Quinoxaline under High Pressure (X = Br, I)

et al. 2023

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A study of high-pressure single-crystal X-ray diffraction and luminescence experiments together with ab initio simulations based on the density functional theory has been performed for two isomorphous copper(I) halide compounds with the empirical formula [C8H6Cu2X2N2] (X = Br, I) up to 4.62(4) and 7.00(4) GPa for X-ray diffraction and 6.3(4) and 11.6(4) GPa for luminescence, respectively. An exhaustive study of compressibility has been completed by means of determination of the isothermal equations of state and structural changes with pressure at room temperature, giving bulk moduli of K0 = 14.4(5) GPa and K′0 = 7.7(6) for the bromide compound and K0 = 13.0(2) GPa and K′0 = 7.4(2) for the iodide compound. Both cases exhibited a phase transition of second order around 3.3 GPa that was also detected in luminescence experiments under the same high-pressure conditions, wherein redshifts of the emission bands with increasing pressure were observed due to shortening of the Cu–Cu distances. Additionally, ab initio studies were carried out which confirmed the results obtained experimentally, although unfortunately, the phase transition was not predicted.

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A new coordination tetramer of copper(I) iodide and benzyldimethylamine: tetra-μ₃-iodido-tetrakis[(benzyldimethylamine-κN)copper(I)]

Cited by 3 publications

References 4 publications

New Multi-Ferrocenyl- and Multi-Ferricenyl- Materials via Coordination-Driven Self-Assembly and via Charge-Driven Electro-Crystallization

New Multi-Ferrocenyl- and Multi-Ferricenyl- Materials via Coordination-Driven Self-Assembly and via Charge-Driven Electro-Crystallization

Network formation and photoluminescence in copper(i) halide complexes with substituted piperazine ligands

Structural and Luminescence Properties of Cu(I)X-Quinoxaline under High Pressure (X = Br, I)

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A new coordination tetramer of copper(I) iodide and benzyldimethylamine: tetra-μ3-iodido-tetrakis[(benzyldimethylamine-κN)copper(I)]

Cited by 3 publications

References 4 publications

New Multi-Ferrocenyl- and Multi-Ferricenyl- Materials via Coordination-Driven Self-Assembly and via Charge-Driven Electro-Crystallization

New Multi-Ferrocenyl- and Multi-Ferricenyl- Materials via Coordination-Driven Self-Assembly and via Charge-Driven Electro-Crystallization

Network formation and photoluminescence in copper(i) halide complexes with substituted piperazine ligands

Structural and Luminescence Properties of Cu(I)X-Quinoxaline under High Pressure (X = Br, I)

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A new coordination tetramer of copper(I) iodide and benzyldimethylamine: tetra-μ₃-iodido-tetrakis[(benzyldimethylamine-κN)copper(I)]