A layered iodocuprate based on a 3D cationic supramolecular network of dimeric Co(ii) complexes by offset face-to-face interactions

Li, Qiuyan; Fu, Yongqi

doi:10.1039/b820391a

Cited by 13 publications

(6 citation statements)

References 56 publications

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“…Differently, the [Ag 3 I 7 ] trimers are directly interconnected via corner-sharing to form the 2D [Ag 6 I 11 ] 5– layer, whereas two neighboring [Ag 3 I 7 ] SBUs are initially condensed into a hexameric [Ag 6 I 12 ] ternary building unit as a new node, which further self-assembles leading to the 2D [Ag 6 I 10 ] 4– layer . The [Ag 7 I 11 ] 4– layer is formed by alternating interconnection of two different types of [Ag 7 I 12 ] double chains via corner-sharing, and [Ag 11 I 15 ] 4– layer is built from the three-connected [Ag 6 I 10 ] and [Ag 3 I 7 ] building units with (6,3) topology. , The hybrid cuprous halogenides also show diversiform 2D anionic layers including [Cu 3 I 4 ] − , [Cu 6 I 11 ] 5– , [Cu 9 I 11 ] 2– , [Cu I 7 Cu II 2 I 14 ] 3– , [Cu 11 I 17 ] 6– , etc . As for hybrid silver bromides, only one type of 2D [Ag 2 Br 4 ] 2– layer based on [Ag 2 Br 6 ] dimers as four-connected nodes is characterized .…”

Section: Resultsmentioning

confidence: 99%

Transition-Metal-Complex Cationic Dyes Photosensitive to Two Types of 2D Layered Silver Bromides with Visible-Light-Driven Photocatalytic Properties

et al. 2016

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With mixed transition-metal (TM) complex, alkali-metal cations, or halogen anions as structure-directing agents, two types of two-dimensional (2D) layered inorganic-organic hybrid silver bromides were prepared and structurally characterized as K[TM(2,2-bipy)]AgBr (TM = Ni (1), Co (2), Zn (3), Fe (4)) and [TM(2,2-bipy)]AgBr (TM = Ni (5), Co (6), Zn (7), Fe (8)). Compounds 1-4 feature 2D microporous anionic [AgBr] layers composed of [AgBr] secondary building units based on AgBr tetrahedral units, and compounds 5-8 contain 2D [AgBr] layers built from the one-dimensional complex [AgBr] and [AgBr] chains. The photosensitization of TM complex dyes led to the narrow semiconducting behaviors with tunable band gaps of 1.73-2.71 eV for the title compounds, which result in excellent and stable photocatalytic degradation activities over organic pollutants under visible-light irradiation. The studies of photocatalytic mechanism based on radical-trapping experiments and electronic band structural calculation show that the TM complex cations play important roles in the photocatalytical activities and photochemical stabilities due to their excellent separating abilities for photogenerated carriers. This technique affords one new type of visible-light-driven photocatalyst and facilitates the integration of 2D layered materials and semiconducting photocatalytic properties into one hybrid d TM halogenide.

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Section: Resultsmentioning

confidence: 99%

Transition-Metal-Complex Cationic Dyes Photosensitive to Two Types of 2D Layered Silver Bromides with Visible-Light-Driven Photocatalytic Properties

et al. 2016

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“…9 is a rare example of a bis(μ-chlorido) Co(II)N 4 dimer, with only four others having been structurally characterised. [40][41][42][43] The cation comprises two six-coordinate Co(II) ions, each of which is Scheme 1 Syntheses of bmpz and bepz.…”

Section: Structures Of Complexes Containing the Intact Tripodal Ligandsmentioning

confidence: 99%

Low symmetry pyrazole-based tripodal tetraamineligands: metal complexes and ligand decomposition reactions

et al. 2013

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The new low symmetry pyrazole-based tripodal tetraamine ligands 2-(1H-pyrazol-1-yl)-N,N-bis(1H-pyrazol-1-ylmethyl)ethanamine (bmpz) and 2-(1H-pyrazol-1-yl)-N-[2-(1H-pyrazol-1-yl)ethyl]-N-(1H-pyrazol-1-ylmethyl)ethanamine (bepz) have been prepared and characterised, as have metal complexes containing these ligands. X-ray crystal structures of [Co(bmpz)Cl](2)[CoCl(4)]·H(2)O, [Co(bmpz)MeCN](ClO(4))(2)·0.13H(2)O, [Zn(bmpz)MeCN](ClO(4))(2)·0.15H(2)O, [Zn(bepz)OH(2)](ClO(4))(2)·0.5H(2)O and [(Co(bepz)Cl)(2)]Cl(2)·6H(2)O confirm coordination of the intact tripodal ligands to the metal ions through all four N atoms. However, attempts to make Cu(2+) complexes containing bmpz and bepz gave, respectively, [Cu(7)Cl(2)]·0.2H(2)O and [Cu(8)Cl(2)] (7 = 1-(1H-pyrazol-1-yl)-N-(1H-pyrazol-1-ylmethyl)ethanamine, 8 = 2-(1H-pyrazol-1-yl)-N-[2-(1H-pyrazol-1-yl)ethyl]ethanamine), complexes containing the tridentate ligands 7 and 8 which are formed by loss of a pyrazolylmethyl arm from the appropriate tripodal ligand. This decomposition reaction occurs in protic solvents both in the presence and absence of metal ions, and is ascribed to the presence of an aminal functionality in the tripodal ligands. A possible mechanism for the decomposition, based on NMR and ESMS data, is suggested.

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“…In addition to pores, copper halides can contribute to the luminescence, ionic conductivity, and high reactivity in numerous organic and biochemical reactions . It is well-known that the coordination modes of copper(I) and halide atoms are more flexible than those of T and O in silicoaluminates, resulting in much richer SBUs such as Cu 2 X 2 , Cu 3 X 3 , Cu 3 X 7 , Cu 3 X 8 , Cu 4 X 4 , Cu 4 X 11 , Cu 4 X 9 , Cu 6 X 6 , and so on. Neutral copper(I) halide SBUs such as Cu 2 X 2 , Cu 4 X 4 , and Cu 6 X 6 can be linked by organic ligands to form copper(I) halide coordination polymers, while anionic SBUs can assemble into organic-templated copper halide frameworks.…”

Section: Introductionmentioning

confidence: 99%

Cu₃I₇ Trimer and Cu₄I₈ Tetramer Based Cuprous Iodide Polymorphs for Efficient Photocatalysis and Luminescent Sensing: Unveiling Possible Hierarchical Assembly Mechanism

Zhang

2014

Inorg. Chem.

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Solvothermal reactions of CuI, 1,4-diazabicyclo[2.2.2]octane (DABCO), and HI in an ethanol solution at 140 °C/150 °C for 7 days resulted in two 24-membered-ring-based layered semiconducting iodocuprate open-network polymorphs formulated as [deDABCO]2[meDABCO]Cu11I17 (deDABCO = N,N'-diethyl-1,4-diazabicyclo[2.2.2] octane and meDABCO = N-methyl-N'-ethyl-1,4-diazabicyclo[2.2.2]octane). The deDABCO and meDABCO templates were in situ generated via alkylation of DABCO during solvothermal reactions. The formation of layered Cu11I17(6-) polymorphs can be rationalized via analyses of hierarchical building units. There are four hierarchical building units in polymorphs, namely, primary CuI3 triangle and CuI4 tetrahedron, secondary Cu3I7 trimer and Cu4I8 tetramer, tertiary Cu6I12 hexamer, and quaternary Cu12I22 dodecamer. The trimeric Cu3I7 secondary building unit (SBU) is constructed by three edge-shared CuI4 tetrahedra, while the tetrameric Cu4I8 SBU with an inversion center is formed by edge-shared two CuI3 triangles and two CuI4 tetrahedra. Two Cu3I7 SBUs are fused together via the sharing of two iodine atoms to form a Cu6I12 tertiary building unit (TBU), and two TBUs are further fused via the sharing of two iodine atoms into a Cu12I22 quaternary building unit (QBU). In colorless polymorph 1, each Cu3I7 SBU is connected to three neighbors via one Cu4I8 and two Cu6I12 linkers to form a 6,3-connected layer with 24-membered ring window. Different from 1, each Cu6I12 TBU in yellowish polymorph 2 is connected to four neighbors via two Cu4I8 and two Cu12I22 linkers to form a (4,4) topological layer also with 24-membered-ring window. These two compounds are very rare examples of copper halide polymorphs that exhibit similar local coordination geometries of copper(I) but different layered open networks. Electrical conductivity, band structure calculation, and UV-vis diffuse-reflectance spectrometry indicate that 1 and 2 are potential semiconductor materials, and the performance on the photocatalytic degradation of organic pollutants upon UV-light irradiation reveals that both 1 and 2 are highly efficient photocatalysts. Two polymorphs exhibit very similar green photoluminescence at room temperature in the solid state, and the study of the luminescent response to solvent on two polymorphs exhibits highly sensitive sensing of nitro explosives via quenching.

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A layered iodocuprate based on a 3D cationic supramolecular network of dimeric Co(ii) complexes by offset face-to-face interactions

Cited by 13 publications

References 56 publications

Transition-Metal-Complex Cationic Dyes Photosensitive to Two Types of 2D Layered Silver Bromides with Visible-Light-Driven Photocatalytic Properties

Transition-Metal-Complex Cationic Dyes Photosensitive to Two Types of 2D Layered Silver Bromides with Visible-Light-Driven Photocatalytic Properties

Low symmetry pyrazole-based tripodal tetraamineligands: metal complexes and ligand decomposition reactions

Cu₃I₇ Trimer and Cu₄I₈ Tetramer Based Cuprous Iodide Polymorphs for Efficient Photocatalysis and Luminescent Sensing: Unveiling Possible Hierarchical Assembly Mechanism

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A layered iodocuprate based on a 3D cationic supramolecular network of dimeric Co(ii) complexes by offset face-to-face interactions

Cited by 13 publications

References 56 publications

Transition-Metal-Complex Cationic Dyes Photosensitive to Two Types of 2D Layered Silver Bromides with Visible-Light-Driven Photocatalytic Properties

Transition-Metal-Complex Cationic Dyes Photosensitive to Two Types of 2D Layered Silver Bromides with Visible-Light-Driven Photocatalytic Properties

Low symmetry pyrazole-based tripodal tetraamineligands: metal complexes and ligand decomposition reactions

Cu3I7 Trimer and Cu4I8 Tetramer Based Cuprous Iodide Polymorphs for Efficient Photocatalysis and Luminescent Sensing: Unveiling Possible Hierarchical Assembly Mechanism

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Cu₃I₇ Trimer and Cu₄I₈ Tetramer Based Cuprous Iodide Polymorphs for Efficient Photocatalysis and Luminescent Sensing: Unveiling Possible Hierarchical Assembly Mechanism