INORGANICA CHIMICA ACTA
·
2022
·
IF 3.118
Xinghao Han,Bin Liu,Zhihong Wang,Alexander Ross Craze,Hongxia Sun,Misbha Rafiq Khan,Jing Liu,Zhongyi Liu,Jinpeng Li
Based on asymmetric lithium salts of 1-(2-pyridinylmethyl)-pyrazole-3,5-dicarboxylate (2-Li 2 pmpd) or 1-(4-pyridinylmethyl)-pyrazole-3,5-dicarboxylate (4-Li 2 pmpd), four polymers [Mn(2-pmpd)(H 2 O)] n (1), {[Mn 2 (4-pmpd)(pd)(H 2 O) 3 ]·H 2 O} n (2), [Co(4-pmpd)(H 2 O)] n (3) and [Co(2-pmpd)(H 2 O) 2 ] n (4) [pd = pyrazole-3,5-dicarboxylate] have been hydrothermally prepared and characterized structurally. 1 displays three-dimensional (3D) network with (4 4 .8 4 ) topology, 2 and 3 show 2D framework with (4 2 ·5·6 3 )(4 2 ·5 2 ·6 4 ·7 2 )(5 2 ·8) and (4 3 ) 2 (4 6 ·6 6 ·8 3 ) topologies, respectively. 4 is a 1D chain structure. Magnetization data of 1 with the 1D carboxylate bridges chain structure, fitted by the 1D model, suggests the antiferromagnetic coupling with J = −2.07 cm −1 . The carboxylate bridges in 1 adopt common syn - syn and unidentate oxygen-bridge modes. 2 with the Mn 4 unit, exhibits antiferromagnetic coupling with J = −0.68 cm −1 and z J ′ = −0.317 cm −1 . The carboxylate bridges in 2 adopt common syn - anti and the unidentate oxygen-bridge modes. In the Co 2 units, magnetization data for 3 shows the weak antiferromagnetic coupling. Variable temperature magnetic studies of 4 reveal ferromagnetic intrachain interactions and antiferromagnetic interchain magnetization interactions. The M ( H ) curves for 3 and 4 are consistent with their antiferromagnetic or ferromagnetic natures.
研究领域:
无机化学
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材料科学
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产品关联
DOI
高影响因子
Polymers
·
2023
·Vol. 15
·期 18
·3728
·
IF 5
Lin Zhang,Xiaofei Zhang,Yingcai Gui
Coordination polymers (CPs) have attracted greater scientific attention as promising electrode materials for lithium–ion batteries (LIBs) due to their diverse and versatile structural chemistry. This study introduces a croconate-based one-dimensional CP, namely [Fe(C5O5)(H2O)3]n) (referred to as Fe-CP), as an efficient anode material with high-performance characteristics for rechargeable LIBs. The ligand with abundant redox sites coordinating to the transition metal ion endowed the anode material with a remarkable stability in the electrolyte, in addition to high capacity, high-rate capability, and high cycling performance during charging/discharging process. The Fe-CP has a unique chain-based supramolecular structure, setting it apart from other porous three-dimensional molecular materials. The presence of unrestricted channels between the chains facilitates the diffusion of lithium ions in this unique structure. When tested at 100 mA g−1over a range of voltages between 0.01 and 2.4 V, the Fe-CP anode demonstrated a noteworthy specific capacity of 521 mA h g−1over 140 cycles. Moreover, the Fe-CP anode material exhibited excellent rate performance and demonstrated favorable cyclability. Following exposure to high charging and discharging rates of 2 A g−1, the anode ultimately regained its initial capability when the current rate was back at 100 mA g−1.Keywords:coordination polymers;one-dimensional;croconate-based;anode
研究领域:
材料科学
·
电化学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
ACS Applied Materials & Interfaces
·
2019
·
IF 8.456
Sixuan Wu,Hongliang Tan,Caihong Wang,Jinhong Wang,Shouri Sheng
Coordination polymers (CPs) as fascinating materials have been explored in a number of fields due to their diverse properties. In this work, we demonstrate the feasibility of CPs in the facile fabrication of multifunctional composites for establishing an immunoassay. To this end, a zinc(II)-based CP (ZnCP) with adenine as a bridge ligand was employed to integrate with alkaline phosphatase (ALP) and anticarcinoembryonic antigen (anti-CEA) antibody, which produces ALP/anti-CEA@ZnCPs. Benefiting from the adaptive inclusion property of ZnCPs, the integrated ALP and anti-CEA can maintain their original catalytic activity and capture ability to target antigen, respectively. This allows the ALP/anti-CEA@ZnCPs to be a detection antibody for performing an immunoassay. Meanwhile, ZnCP as a host can effectively protect the loaded ALP and anti-CEA against harsh environments. On this basis, by using iron(II)-phenanthroline complex as a signal amplifier, a colorimetric immunoassay for CEA detection was developed, and a low detection limit of 21.1 pg/mL has been achieved. This immunoassay was successfully applied to determine CEA levels in serum samples with good recovery and precision. We believe that this study can not only provide a new method for CEA detection but also open up a new way for the rational design and fabrication of multifunctional composites.
研究领域:
分析化学
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材料科学
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生物化学
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医学诊断
✓ 已验证
产品关联
DOI
PubMed
高影响因子
JOURNAL OF COORDINATION CHEMISTRY
·
2019
·
IF 1.685
Yafang Ge,Guoting Li,Dongxia Fu,Lina Liu,Benlai Wu
Two metal–organic frameworks based on a multifunctional ligand 2-(5-bromo-pyridin-3-yl)-1H-imidazole-4,5-dicarboxylic acid (H3L), [Mn(HL)(C2H5OH)]n (1) and {[Zn(HL)(H2O)2]·H2O}n (2), have been hydro/solvothermally synthesized and characterized by IR, elemental analyses, X-ray powder and single-crystal diffractions, and thermogravimetric analyses. In 1, (HL)2– ligands adopt the μ
3-kN,O:kN′,O′:kN′′ coordination mode and use their imidazoledicarboxylates to bis-chelate MnII into left- and right-handed helixes which are further bridged into a mesolayer structure with (4·82) topology through the coordination of their pyridyl groups. In 2, (HL)2– ligands only use their imidazoledicarboxylates to bis-chelate ZnII into linear chains which are further linked into a 2D supramolecular framework through interchain hydrogen–bonding interactions. Interestingly, the structures of 1 and 2 are mainly dominated by the bis-N,O-chelation of the imidazoledicarboxylate in (HL)2–. As for the formation of the imidazoledicarboxylate-bridged helical chains in 1 or straight chains in 2, it largely depends on the cis- or trans-chelation of two imidazoledicarboxylates around the same metal center. Magnetostructural analysis of 1 discloses that the bis-N,O-chelating imidazoledicarboxylate of (HL)2– transmits antiferromagnetic interactions along the imidazoledicarboxylate-bridged helical chain with the spin-coupling constant of –0.71 cm–1. Additionally, 2 emits greatly enhanced blue fluorescence mainly originating from the intraligand charge transition.
研究领域:
材料科学
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化学
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配位化学
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晶体工程
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产品关联
DOI
高影响因子
ZEITSCHRIFT FUR NATURFORSCHUNG SECTION B-A JOURNAL OF CHEMICAL SCIENCES
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2020
·
IF 0.839
Gao-Feng Wang,Shu-Wen Sun,Hong Sun,Bing-Wei Chang,Jing Song,Xia Yang
Two coordination polymers (CPs), [Mn(bipmo)(pbtda)(H 2 O)] n ( 1 ), {[Cd(bipmo)(btda)]·2(H 2 O)]} n ( 2 ), (bipmo = bis(4-(1 H -imidazol-1-yl)phenyl)methanone, H 2 pbtda = 2-phenylbutanedioic acid, H 2 btda = butanedioic acid), were synthesized by solvothermal methods. The products have been characterized by elemental analyses, IR spectroscopy, and single-crystal X-ray diffraction. The topological structure of 1 is based on 2-nodal nets with the Schläfli symbol {6 3 }{6 9 ·8}, while that of 2 features a system with a sixfold penetration with the Schläfli symbol {6 6 }.
研究领域:
化学
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材料科学
✓ 已验证
DOI
高影响因子
Results in Chemistry
·
2023
·
IF 2.3
Beibei Zheng,Chufei Miao,Han Xu,Jiaqi Lai,Meng Li,Jumei Tian
Two isostructural lanthanide-based coordination polymers, namely, {[Gd 2 (H 2 dhtp) 3 (DMF) 2 (H 2 O) 4 ]·2DMF·H 2 On ( 1 ) and {[Dy 2 (H 2 dhtp) 3 (DMF) 2 (H 2 O) 4 ]·2DMF·H 2 O}n ( 2 ) (H 4 dhtp = 2,5-dihydroxyterephthalic acid, DMF = N, N-dimethylformamide) were synthesized and structurally characterized by single-crystal X-ray diffraction, IR, powder X-ray diffraction (PXRD), thermogravimetric analysis (TGA), and elemental analysis. Compounds 1 and 2 exhibited 3D networks and isostructures, except for the distinction of the metal ion. Magnetic measurements indicated that complex 1 exhibited the dominating contribution at low temperature of zero-field splitting for Gd(III) materials, and the complex 2 shown the depopulation of the excited excited state for Dy(III) material. The solid luminescent properties of H 4 dhtp, 1 , and 2 displayed a blue emission band, while the solution state luminescent properties all demonstrated a green emission band. The combination of luminescence sensing and magnetism in single-phase coordination polymers may offer great potential applications in smart multitasking devices.
研究领域:
材料科学
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化学
✓ 已验证
产品关联
DOI
高影响因子
Polymers
·
2023
·Vol. 15
·期 11
·2570
·
IF 5
Dan Wang,Lin-Huan Du,Long Li,Yu-Meng Wei,Tao Wang,Jun Cheng,Bin Du,Yi Jia,Bao-Yi Yu
Coordination polymers (CPs) are organo-inorganic porous materials consisting of metal ions or clusters and organic linkers. These compounds have attracted attention for use in the fluorescence detection of pollutants. Here, two Zn-based mixed-ligand-bearing CPs, [Zn2(DIN)2(HBTC2−)2] (CP-1) and [Zn(DIN)(HBTC2−)]·ACN·H2O (CP-2) (DIN = 1,4-di(imidazole-1-yl)naphthalene, H3BTC = 1,3,5-benzenetricarboxylic acid, and ACN = acetonitrile), were synthesized under solvothermal conditions. CP-1 and CP-2 were characterized by single-crystal X-ray diffraction, Fourier transform infrared spectroscopy, thermogravimetric analysis, elemental analysis, and powder X-ray diffraction analysis. Solid-state fluorescence analysis revealed an emission peak at 350 nm upon excitation at 225 and 290 nm. Fluorescence sensing tests showed that CP-1 was highly efficient, sensitive, and selective for detecting Cr2O72−at 225 and 290 nm, whereas I−was only detected well at an excitation of 225 nm. CP-1 detected pesticides differently at excitation wavelengths of 225 and 290 nm; the highest quenching rates were for nitenpyram at 225 nm and imidacloprid at 290 nm. The quenching process may occur via the inner filter effect and fluorescence resonance energy transfer.Keywords:coordination polymers;fluorescence sensing;d10metal;CP;sensing ions;sensing pesticides
研究领域:
材料科学
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分析化学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
JOURNAL OF MOLECULAR LIQUIDS
·
2024
·
IF 5.3
Longfei Xu,Ziyi Wang,Kun Du,Zhao Zhao,Jun Tang,Shuaijie Zhang,Zhichao Lu,Yongfeng Luo,Yuanjuan Bai,Jinkang Dou
In this work, a cost-effective and eco-friendly coordination polymer (Zr-CP) was synthesized through the combination of natural amino acids as ligands with Zr 4+ metal cation under aqueous conditions at room temperature and used for the treatment of dyeing wastewater. The results showed that Zr-CP exhibited a high adsorption potential for Congo red (CR) in various simulated dyeing effluents. It possesses a theoretical adsorption capacity for CR up to 381.68 mg/g at room temperature 25 ℃ in pH 7, probably due to the abundance of primary amino functional groups in its chemical structure. The thermodynamic analysis indicates that the use of Zr-CP as an adsorbent in the wastewater purification process endothermic and spontaneous in nature. Among the tested isotherms, the Langmuir model was found to best fit the equilibrium data, with a coefficient R 2 value of 0.98. Besides, the adsorption behavior of this bio-based coordination polymer for Congo red was found to adhere to the pseudo-first-order kinetic equation with higher correlation coefficient R 2 of 0.98. Moreover, Zr-CP showed outstanding cycle performance and sustained a high dye removal efficiency even after five reuses. These results indicate that Zr-CP, a biologically derived coordination polymer, offers the advantages of affordability and efficiency, making it a promising adsorbent for the removal of organic pollutants from printing and dyeing effluents.
研究领域:
环境科学
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材料科学
✓ 已验证
产品关联
DOI
高影响因子
CRYSTENGCOMM
·
2024
·Vol. 26
·期 25
·3303-3310
·
IF 2.6
Meiying Wang,Chunbo Jia,Hehua Hui,Qianxiang Xu,Xiang Li,Yuanhang Ren,Bin Yue,Heyong He
Decatungstate (W10O324−, DT) is a metastable polyoxometalate anion which presents excellent photocatalytic ability. In order to stabilize the DT species, four decatungstate-based coordination polymer compounds with different DT coordination modes, namely [Cu2(3-bpo)2(H2O)2(DMSO)2][W10O32]·14H2O (1), [Cu2(3-bpo)2(DMSO)4][W10O32] (2), [Cu2(4,4′-bipy)4][H2W10O32] (3) and [Cu(4,4′-bipy)3(DMSO)(H2O)][TBA][HW10O32]·H2O (4) (DMSO = dimethyl sulfoxide, 3-bpo = 2,5-bis(3-pyridyl)-1,3,4-oxadiazole, 4,4′-bipy = 4,4′-bipyridine, TBA = tetrabutylammonium) were synthesized under controlled solvothermal conditions in the mixed solvent of DMSO and H2O. The heterogeneous photocatalytic activity of these four compounds in the degradation of rhodamine B was tested and the results show that they possess fairly high photocatalytic activity without leaching of DT during the reaction. The effect of the coordination modes of terminal oxygen (Ot) atoms in DT anions on the activity was investigated.
研究领域:
材料科学
·
化学
✓ 已验证
产品关联
DOI
高影响因子
WATER RESEARCH
·
2019
·
IF 7.913
Yanqiu Zhang,Sensen Sheng,Shun Mao,Xiaohan Wu,Zhuo Li,Wenquan Tao,Ian R. Jenkinson
Phosphate, due to its somatotrophic effect on organisms, can cause severe eutrophication with excessive content in water. Conventional methods for phosphate detection, which are based on complicated instruments, are time-consuming. Here we report a luminescent lanthanide functionalized coordination polymer (Eu@BUC-14) by doping Eu 3+ cations to BUC-14 nanocrystals. This Eu 3+ functionalized hybrid (Eu@BUC-14) presents excellent luminescence features of Eu 3+ ion that originated from efficient energy transfer from the ligand. The detection results show that Eu@BUC-14 is a highly efficient luminescent probe for phosphate detection in aqueous solutions, exhibiting high sensitivity with a low detection limit of 0.88 μM and a short response time of within 5 min. More significantly, Eu@BUC-14 has a high specificity for PO 4 3− over fifteen other pollutant anions and eleven metal cations. The sensing mechanism is proposed via an in-depth analysis of the interaction between PO 4 3− and Eu 3+ . Simultaneously, it displays high adsorption ability toward PO 4 3− (57.9 mg P/g), making it an outstanding multifunctional material. And the adsorption process plays an important role in preconcentration of PO 4 3− which can lead to a quick fluorescent response with high quenching efficiency. The practicality of Eu@BUC-14 was also validated by sensing PO 4 3− in real environment water samples.
研究领域:
环境科学
·
材料科学
✓ 已验证
DOI
高影响因子
DALTON TRANSACTIONS
·
2021
·Vol. 50
·期 40
·14325-14331
·
IF 4.39
Junfeng Qian,Huangjie Lu,Zhaofa Zheng,Miaomiao Xu,Yuan Qian,Zhi-Hui Zhang,Jian-Qiang Wang,Ming-Yang He,Jian Lin
Expanding the family of lanthanide terpyridine coordination polymers has yielded eighteen new complexes with two different phases, Ln(TPC)2(HCOO)(H2O) (Ln-1) and Ln(TPC)(HCOO)2 (Ln-2) (Ln = Sm–Lu, except Tm). Both structures are composed of lanthanide cations interconnected by 2,2′:6′,2′′-terpyridine-4′-carboxylate ligands to yield one-dimensional chain topologies. However, the incorporation of an additional crystallographically unique decorative TPC ligand into Ln-1 gives rises to a distinct phase. The encapsulation of both metal- and ligand-based phosphors within single coordination polymers leads to dual-emission of the afforded materials. Furthermore, judicious lanthanide doping in heterometallic Ln-1 and Ln-2 allows for fine-tuning the photoluminescent colours over a wide range of gamut. Such a combination showcases the capability to fine-tune the emission colours from deep green, to red, and to blue. In addition, direct white-light emission upon UV excitation can be achieved in the SmxGd1−x-1 system.
研究领域:
材料科学
·
化学
✓ 已验证
DOI
高影响因子
CRYSTENGCOMM
·
2015
·Vol. 17
·期 19
·3677-3686
·
IF 4.034
Guohai Xu,Min Xie,Xiaokang Li,Wenjie Shi,Hui Yu,Yinhui Hu,Xiaochen Xun,Yongrong Xie
In this work, crystal engineering is focused on the self-assembly of 2D 63 topology into different supramolecular networks using unit–unit H-bonds. Four related coordination polymers, [Zn2(teaH2)(ndc)1.5]·MeOH (1), [Co2(teaH2)(ndc)1.5]·MeOH (2), [Zn2(deaH)(ndc)1.5]·MeOH (3) and [Co2(teaH2)(btb)]·3EtOH (4) where ndc2− = 2,6-naphthalenedicarboxylate, btb3− = benzene-1,3,5-tribenzoate, teaH3 = triethanolamine, and deaH2 = diethanolamine, contain a well-known 63 subnet and the binuclear units. Furthermore, their 63 nets present different hexagonal windows (chair- or ship-shaped) and diversified layer arrays (ABAB or ABCABC sequence). The 63 subnet and symmetry-related unit–unit H-bonds as supramolecular synthons can build up different supramolecular networks. Compounds 1 and 2 show a distorted diamond supramolecular network due to formation of a square-pyramidal node. Because the formation of a seesaw-shaped node, compound 3 features a general diamond supramolecular network with 3-fold interpenetration. Compound 4 exhibits a binodal supramolecular framework in that H-bonding interactions occur between three binuclear units. In addition, the diversified layer array has endowed compound 4 with a large 1D channel, which can be characterized by standard N2 adsorptions. Compound 4 has a type I adsorption isotherm with an appreciable adsorption of 45.04 cm3 g−1 at 0.40 P/P0, whereas 1–3 do not exhibit appreciable N2 uptake.
研究领域:
化学
·
材料科学
✓ 已验证
产品关联
DOI
高影响因子
危险品化学品经营许可证（带存储）