New copper(I) iodides with bisimidazole molecules: Synthesis, structural characterization and photoluminescence property

Wang, Rongyan; Zhang, Xiao; Yang, Qingfeng; Huo, Qisheng; Yu, Jie‐Hui; Xu, Jianing; Xu, Ji‐Qing

doi:10.1016/j.jssc.2017.04.022

Cited by 16 publications

(9 citation statements)

References 106 publications

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“…The thermal behavior of CP1 and CP3 are rather similar to L1 with a more important mass loss occurring in the second step due to the decomposition of iodide fragments. The final residue yields are very close for CP1 (31.9 %) and CP3 (30.5 %) indicating similar decomposition mechanism and the formation of CuO and SiO 2 (theoretical values: 32.3 % for CP1 and 30.1 % for CP3 ) . However, CP2 containing bromide ligand undergoes different decomposition mechanism as seen from the absence of a well‐defined plateau at 800 °C.…”

Section: Methodsmentioning

confidence: 70%

Assembly of Coordination Polymers Using Thioether‐Functionalized Octasilsesquioxanes: Occurrence of (CuX)_n Clusters (X=Br and I) within 3D‐POSS Networks

Raghuvanshi

Strohmann

Tissot

et al. 2017

Chemistry A European J

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For the first time, POSS-based coordination polymers (CPs) have been structurally characterized. These CPs were obtained in high yield via self-assembly reactions of thioether-functionalized polysilsesquioxanes with Cu salts under mild conditions. Single crystal analyses revealed the formation of 3D networks incorporating different secondary building units (SBUs) as connection nodes. The nature of the -SAr functionality allows a fine-tuning of the cluster nuclearity, that is, butterfly-shaped Cu X or closed cubane-type Cu I cores. As such, the resulting hybrid materials exhibit a combination of high thermal stability arising from the inorganic POSS core along with interesting luminescent properties conferred by the cubane cluster core. Furthermore, the occurrence of channels has been shown crystallographically in the case of the Cu I cluster containing CP.

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Section: Methodsmentioning

confidence: 70%

Assembly of Coordination Polymers Using Thioether‐Functionalized Octasilsesquioxanes: Occurrence of (CuX)_n Clusters (X=Br and I) within 3D‐POSS Networks

Raghuvanshi

Strohmann

Tissot

et al. 2017

Chemistry A European J

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“…Similarly, the 1D polymeric chain of L 1 (see Chart a) linked with the Cu 4 I 4 cubane cluster is emissive, while the analogue product linked with the Cu 4 I 6 twisted ribbon is nonemissive . However, some luminescent stepped cubane cluster complexes with bisimidazole molecules have been reported because the emissivity of the copper(I) iodide clusters is sensitive not only to the cluster shapes (rhomboid, cubane, and stepped cubane etc.) but also to the donor atoms (N, S, and O) that the copper(I) atom bounds. ,, …”

Section: Resultsmentioning

confidence: 99%

“…However, some luminescent stepped cubane cluster complexes with bisimidazole molecules have been reported because the emissivity of the copper(I) iodide clusters is sensitive not only to the cluster shapes (rhomboid, cubane, and stepped cubane etc.) but also to the donor atoms (N, S, and O) that the copper(I) atom bounds. ,, …”

Section: Resultsmentioning

confidence: 99%

“…but also to the donor atoms (N, S, and O) that the copper(I) atom bounds. 66,74,75 It may be possible that the difference in the conformation of the Cu 4 I 4 nodes could be responsible not only for the generation of isomers 6 and 7 but also for their PL properties as an example of the structure−function relationship. Compared to the cubane tetramer, the stepped cubane tetramer is less common.…”

Section: ■ Results and Discussionmentioning

confidence: 99%

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Coordinative Networking of Thiacalix[4]-bis-monothiacrown-5 with Hard, Borderline, and Soft Metal Salts via Exo- and Endo/Exo-Coordination

Habata

Jung

et al. 2021

Crystal Growth & Design

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Coordinative networks of thiacalix[4]-bis-monothiacrown-5 (L) whose infinite structures span from one (1D) to three dimensions (3D) with hard (K+), borderline (Cd2+), and soft (Cu+, Hg2+) metal salts are reported. First, mercury(II) salts afforded straight and zigzag 1D coordination polymers of type [(Hg2X4)(L)] n (1: X = Cl and 2: X = SCN), respectively, with an L-Hg2X4-L-Hg2X4 pattern. When cadmium(II) salts (CdX2) (3: X = Br and 4: X = I) were used, the bromo complex 3 exhibited an infinite 2D structure with square lattice (sql) topology, in which trilooped Cd4Br8 cluster acts as a four-connected node. In contrast, the iodo complex 4 showed a 1D polymeric chain similar to 1. A mixture of KI and CdI2 gave an exceptional discrete complex of type {[(K2 L)CdI3]2[K2 L](CdI4)2·2CH3CN} (5) with five separated parts involving two identical endo/exocyclic heteronuclear complex units. Interestingly, the CuI complexation yielded a mixture of two supramolecular isomers (6 and 7) of type [(Cu4I4)(L)2] n , each of which was separated with the naked eye under a UV lamp due to their drastically different photoluminescence properties; isomer 6 is emissive while isomer 7 is nonemissive. Isomer 6 features an infinite 3D network with threefold interpenetrated diamodoid (dia) topology in which Cu4I4 cubane tetramers act as 4-connected nodes, while isomer 7 is a non-interpenetrated 2D network with sql topology incorporating Cu4I4 stepped cubane tetramers as 4-connected nodes. Consequently, the borderline and soft metal ions bind to the S-donor on the O4S1-crown loop in an exocyclic mode to form low to high dimensional coordinative networks, with S-bridges in the thiacalix rim remaining uncoordinated mainly because of the weak basicity and rigid conformation. This work also demonstrates the supramolecular isomers incorporating two types of Cu4I4 tetramers which exhibit different photophysical properties as a good example not only for the crystal engineering of the exocoordinated networking but also for the structure–function relationship.

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“…Because only one emission was observed in emission spectrum of 3, the 3 CC excited state may be quenched at room temperature via a nonradiative process, such as vibrational relaxation due to the loose Cu-I core structure. The related ladder-type copper iodide cluster also shows phosphorescence derived from 3 MLLCT at room temperature and a longer phosphorescence wavelength is observed at lower temperatures, suggesting a low-lying potentially emissive 3 CC excited state [62,63].…”

Section: Theoretical Considerationmentioning

confidence: 96%

Synthesis, Structure, and Photophysical Properties of Yellow-Green and Blue Photoluminescent Dinuclear and Octanuclear Copper(I) Iodide Complexes with a Disilanylene-Bridged Bispyridine Ligand

et al. 2021

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The synthesis, structural, and photophysical investigations of CuI complexes with a disilanylene-bridged bispyridine ligand 1 are herein presented. Dinuclear (2) and ladder-like (3) octanuclear copper(I) complexes were straightforwardly prepared by exactly controlling the ratio of CuI/ligand 1. Single-crystal X-ray analysis confirmed that dinuclear complex 2 had no apparent π…π stacking whereas octanuclear complex 3 had π…π stacking in the crystal packing. In the solid state, the complexes display yellow-green (λem = 519 nm, Φ = 0.60, τ = 11 µs, 2) and blue (λem = 478 nm, Φ = 0.04, τ = 2.6 µs, 3) phosphorescence, respectively. The density functional theory calculations validate the differences in their optical properties. The difference in the luminescence efficiency between 2 and 3 is attributed to the presence of π…π stacking and the different luminescence processes.

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New copper(I) iodides with bisimidazole molecules: Synthesis, structural characterization and photoluminescence property

Cited by 16 publications

References 106 publications

Assembly of Coordination Polymers Using Thioether‐Functionalized Octasilsesquioxanes: Occurrence of (CuX)_n Clusters (X=Br and I) within 3D‐POSS Networks

Assembly of Coordination Polymers Using Thioether‐Functionalized Octasilsesquioxanes: Occurrence of (CuX)_n Clusters (X=Br and I) within 3D‐POSS Networks

Coordinative Networking of Thiacalix[4]-bis-monothiacrown-5 with Hard, Borderline, and Soft Metal Salts via Exo- and Endo/Exo-Coordination

Synthesis, Structure, and Photophysical Properties of Yellow-Green and Blue Photoluminescent Dinuclear and Octanuclear Copper(I) Iodide Complexes with a Disilanylene-Bridged Bispyridine Ligand

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New copper(I) iodides with bisimidazole molecules: Synthesis, structural characterization and photoluminescence property

Cited by 16 publications

References 106 publications

Assembly of Coordination Polymers Using Thioether‐Functionalized Octasilsesquioxanes: Occurrence of (CuX)n Clusters (X=Br and I) within 3D‐POSS Networks

Assembly of Coordination Polymers Using Thioether‐Functionalized Octasilsesquioxanes: Occurrence of (CuX)n Clusters (X=Br and I) within 3D‐POSS Networks

Coordinative Networking of Thiacalix[4]-bis-monothiacrown-5 with Hard, Borderline, and Soft Metal Salts via Exo- and Endo/Exo-Coordination

Synthesis, Structure, and Photophysical Properties of Yellow-Green and Blue Photoluminescent Dinuclear and Octanuclear Copper(I) Iodide Complexes with a Disilanylene-Bridged Bispyridine Ligand

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Product

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Assembly of Coordination Polymers Using Thioether‐Functionalized Octasilsesquioxanes: Occurrence of (CuX)_n Clusters (X=Br and I) within 3D‐POSS Networks

Assembly of Coordination Polymers Using Thioether‐Functionalized Octasilsesquioxanes: Occurrence of (CuX)_n Clusters (X=Br and I) within 3D‐POSS Networks