期刊：
Journal of Molecular Structure,2025年1320:139476 ISSN：0022-2860
通讯作者：
Sitian Yuan<&wdkj&>Wujiu Jiang
作者机构：
[Yuxing Tan; Huifen Huang; Chengwei Zhang; Wujiu Jiang] Key Laboratory of Functional Metal-Organic Compounds of Hunan Province, Key Laboratory of Organometallic New Materials, College of Hunan Province, School of Chemistry and Materials Science, Hengyang Normal University, Hengyang, Hunan 421008, PR China;[Sitian Yuan] Institute of Bast Fiber Crops, Chinese Academy of Agricultural Sciences, Changsha, Hunan 410205, PR China
通讯机构：
[Sitian Yuan] I;[Wujiu Jiang] K;Institute of Bast Fiber Crops, Chinese Academy of Agricultural Sciences, Changsha, Hunan 410205, PR China<&wdkj&>Key Laboratory of Functional Metal-Organic Compounds of Hunan Province, Key Laboratory of Organometallic New Materials, College of Hunan Province, School of Chemistry and Materials Science, Hengyang Normal University, Hengyang, Hunan 421008, PR China
摘要：
Six dibutyltin aryloxyacetate complexes [(X-C6H4OCH2COO)(SnBu2)2(μ3O)(OMe)]2 (A1, B1), [(X-C6H4OCH2COO)2(SnBu2)2(μ3O)]2 (A2, B2), and [(X-C6H4OCH2COO)2SnBu2] (A3, B3) were synthesized and characterized by IR, NMR, HRMS, and TGA techniques. The molecular structure of complexes A1, A3 and B1-B3 was confirmed by single-crystal X-ray crystallography. Complexes A1, B1, A2, and B2 are dimeric carboxylate tetraorganodistannoxanes, displaying a "ladder-like" molecular arrangement. The aryloxyacetate ligands in A1 and B1 adopt a monodentate mode, while they function as bridging coordination ligands in A2 and B2. Complexes A3 and B3 represent dibutyltin carboxylates with crystallographically imposed two-fold symmetry, with the aryloxyacetate ligands adopting a bidentate mode. Aryloxyacetic acids demonstrate a propensity for assuming various coordination modes, leading to the formation of diverse molecular architectures in organotin carboxylates. In addition, complex B1 exhibits polymorphism. Echinochloa crus-galli and Portulaca oleracea L. were used as target organisms for herbicidal activity testing using a petri dish method. It was found that they have a significant inhibitory effect on weed roots and stems at 200 μmol/L, and the structure-activity relationship analysis revealed the important influence of substituent types and complex structures on their activity.
期刊：
Journal of Future Foods,2025年5(2):162-171 ISSN：2772-5669
通讯作者：
Peihong Deng<&wdkj&>Quanguo He
作者机构：
[Peihong Deng; Hui Sun; Junhua Li] Key Laboratory of Organometallic New Materials, Key Laboratory of Functional Metal-Organic Compounds of Hunan Province, Department of Chemistry and Material Science, Hengyang Normal University, Hengyang 421008, China;[Chuanqin Zhou; Aiting Chen; Yanping Wei; Nana Tang; Shuting Shi; Jinsong Zuo; Quanguo He] College of Life Science and Chemistry, Hunan University of Technology, Zhuzhou 412007, China
通讯机构：
[Peihong Deng] K;[Quanguo He] C;College of Life Science and Chemistry, Hunan University of Technology, Zhuzhou 412007, China<&wdkj&>Key Laboratory of Organometallic New Materials, Key Laboratory of Functional Metal-Organic Compounds of Hunan Province, Department of Chemistry and Material Science, Hengyang Normal University, Hengyang 421008, China
摘要：
In this work, a fascinating nanocomposite based on manganese-cobalt sulfide (MnS/Co3S4) wrapped by electrochemically reduced graphene oxide (ERGO) has been successfully synthesized on the surface of a glassy carbon electrode (GCE) by a facile hydrothermal assisted electrochemical reduction method. The modified electrode was fully characterized by scanning electron microscopy, cyclic voltammetry and electrochemical impedance spectroscopy. The morphological results illustrate that MnS/Co3S4 are embedded in the ERGO layers, resulting in a rough surface and three-dimensional (3D) microstructure. The as-synthesized MnS/Co3S4-ERGO/GCE displays distinctly enhanced electrocatalytic activity for vanillin oxidation in comparison with that of the ERGO/GCE and MnS/Co3S4/GCE. Therefore, the MnS/Co3S4-ERGO/GCE can be used as an effective electrochemical sensing platform for the sensitive determination of vanillin, and the fabricated sensor displays a wide linear range of 0.02−1.00 μmol/L and 1.0−40.0 μmol/L, low detection limit of 4.0 nmol/L and satisfactory recoveries between 98.0% and 102.8%.
作者机构：
[Xin-Tong, Yao; Jin, Cai] Hengyang Normal Univ, Sch Chem & Mat Sci, Hengyang 421008, Peoples R China.;[Man-Sheng, Chen] Hengyang Normal Univ, Key Lab Met Organ New Mat Coll Hunan Prov, Sch Chem & Mat Sci, Key Lab Funct Met Organ Cpds Hunan Prov, Hengyang 421008, Hunan, Peoples R China.
通讯机构：
[Man-Sheng, C ] H;Hengyang Normal Univ, Key Lab Met Organ New Mat Coll Hunan Prov, Sch Chem & Mat Sci, Key Lab Funct Met Organ Cpds Hunan Prov, Hengyang 421008, Hunan, Peoples R China.
摘要：
C20H20NiN4O5, monoclinic, P2(1)/n (no. 14), a = 8.8571(7) & Aring;, b = 20.4827(14) & Aring;, c = 10.9374(8) & Aring;, beta = 101.235(3)degrees, V = 1946.2(2) & Aring;(3), Z = 4, R-gt(F) = 0.0697, wR(ref)(F-2) = 0.1486, T = 193(2) K.
作者机构：
[Chen, Man-Sheng; Cai, Jin; Liu, Yang; Yao, Xin-Tong] Hengyang Normal Univ, Key Lab Met Organ New Mat, Sch Chem & Mat Sci, Key Lab Funct Met Organ Cpds Hunan Prov,Coll Hunan, Hengyang 421008, Hunan, Peoples R China.
通讯机构：
[Chen, MS ] H;Hengyang Normal Univ, Key Lab Met Organ New Mat, Sch Chem & Mat Sci, Key Lab Funct Met Organ Cpds Hunan Prov,Coll Hunan, Hengyang 421008, Hunan, Peoples R China.
摘要：
C20H15BrCoN6O4, monoclinic, P2(1)/n (no. 14), a = 8.7395(7) & Aring;, b = 16.1423(11) & Aring;, c = 14.9519(12) & Aring;, beta = 103.694(3)degrees, V = 2049.4(3) & Aring;(3), Z = 4, R-gt(F) = 0.0514, wR(ref)(F-2) = 0.1079, T = 193(2) K.
摘要：
Metal single-atom catalysts offer the dual advantages of high electrochemical activity and near 100 % metal atom utilization, leading to their potential use in low-cost electrochemical sensor development. Herein, a novel electrocatalyst comprising atomically-dispersed Mn on B,N co-doped bamboo-derived carbon (MnSAs-BN-BC) was synthesized via a facile pyrolysis procedure. A high dispersion of Mn single atoms in MnSAs-BN-BC was confirmed by aberration-corrected transmission electron microscopy and elemental mapping. The Mn loading in the MnSAs-BN-BC determined by inductively coupled plasma mass spectrometry was 255 mg kg-1. MnSAs-BNBC displayed outstanding electrocatalytic performance for levodopa (LD) oxidation, allowing a robust electrochemical sensing platform for LD detection to be established. The MnSAs-BN-BC/GCE sensing platform offered a wide LD detection range (concentrations from 2 to 683 mu M) and a very low limit of detection (LOD) of 0.45 mu M, outperforming almost all electrochemical sensors reported to date for LD sensing. The MnSAs-BN-BC/GCE platform also featured outstanding repeatability, reproducibility, selectivity, and stability. The as-developed sensing platform was successfully applied to LD quantification in commercial tablets with satisfactory recoveries (85.2-102.4 %), with the analytical precision of method validated against a traditional UV-vis spectrophotometry method. Density functional theory (DFT) calculations showed that Mn single atom sites lowered the reaction energy barrier for LD oxidation, with the favorable d-band center position of Mn single atom sites in MnSAs-BN-BC contributing to the enhanced LD sensing performance. This work encourages the use of singleatom metal catalysts in design of high-performance electrochemical sensors for the rapid detection of LD.
作者机构：
[Liu, Qin; He, Yingjian; Liu, Jinlong; Qian, Dong; Chen, Xiangxiong; Wang, Bowen; Luo, Ziyu; Liu, JL; Zhang, Xinxin] Cent South Univ, Coll Chem & Chem Engn, Changsha 410083, Peoples R China.;[Chen, Xiangxiong] Yoening Tianci Min Changsha Technol Ctr, Changsha 410083, Peoples R China.;[V. Kennedy, John] GNS Sci, Natl Isotope Ctr, POB 30368, Lower Hutt 5010, New Zealand.;[Li, Junhua] Hengyang Normal Univ, Coll Chem & Mat Sci, Hengyang 421008, Peoples R China.;[Waterhouse, Geoffrey I. N.; Waterhouse, GIN] Univ Auckland, Sch Chem Sci, Auckland 1142, New Zealand.
通讯机构：
[Qian, D; Liu, JL ] C;[Waterhouse, GIN ] U;Cent South Univ, Coll Chem & Chem Engn, Changsha 410083, Peoples R China.;Univ Auckland, Sch Chem Sci, Auckland 1142, New Zealand.
关键词：
Electrochemical reconstruction;CoMoO4-based catalyst;Phosphorization;Heterojunction;Overall water splitting
摘要：
Phosphorization of molybdates has been shown to promote hydrogen evolution reaction (HER) activity but is usually detrimental to oxygen evolution reaction (OER) activity, frustrating efforts to create bifunctional HER/OER electrocatalysts. Herein, we show that Fe2O3-modulated P-doped CoMoO4 on nickel foam (Fe-P-CMO) is an excellent bifunctional HER/OER electrocatalyst in alkaline media, with the adverse effect of phosphorization on the OER activity of CoMoO4 being countered via Fe2O3 introduction. An alkaline splitting electrolyser assembled directly using the self-supporting Fe-P-CMO electrode possessed outstanding long-term durability with ultralow cell voltages of 1.48 and 1.59 V required to achieve current densities of 10 and 100 mA cm−2, respectively. Detailed experimental investigations showed that during HER, P-doped CoMoO4 in Fe-P-CMO underwent surface reconstruction with the in-situ formation of Co(OH)2 on the P-CoMoO4 (Co(OH)2/P-CoMoO4). During OER, P-doped CoMoO4 was deeply reconstructed to CoOOH with the complete dissolution of Mo, leading to the in-situ formation of Fe2O3/CoOOH heterojunctions.
摘要：
The low-latency property is becoming increasingly crucial in response to the demand for data processing in the Internet of Things (IoT) environment, especially in lightweight cryptography. A low-latency lightweight block cipher called LTLBC is proposed in this paper. In particular, we propose a hybrid approach of word-wise involutive mapping and a bit-wise permutation, with careful selection of the shift and permutation parameters. This scheme enables LTLBC to achieve better diffusion than Midori and MANTIS. Also, a 4x4\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$4\times 4$$\end{document} S-box which is constructed through a gate-level bottom-up circuit search has good security and latency characteristics. LTLBC mainly focuses on the hardware environment of fully unrolled architecture. LTLBC achieves a minimum latency of around 4.73 ns, with a total area of only 10007.6 mu m2\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$\mu m<^>2$$\end{document} based on NanGate 45nm technology. The comprehensive safety analysis shows LTLBC has sufficient redundancy rounds to resist attacks, such as differential cryptanalysis, linear cryptanalysis, impossible differential cryptanalysis, etc.
摘要：
The massive collection and transmission of various crop and livestock data in smart agriculture leads to serious security concerns. Furthermore, many Internet of Things (IoT) devices in smart agriculture are battery-powered, with limited energy resources. Therefore, a low energy lightweight block cipher (LELBC) is proposed to overcome the data leakage problem during sensor data transmission in smart agriculture. Firstly, a new permutation substitution permuta-tion (PSP) structure is proposed, taking into account the energy resource constraints of unified encryption and decryption (ED) circuits. It has highly consistent encryption and decryption and a good diffusion effect. Secondly, a 4-bit low energy involutive S-box is obtained based on a genetic algorithm. The proposed S-box has lower area and latency compared to the existing S-boxes. The experimental data show that LELBC consumes 1864 gate equivalents (GE) in area and 6.99 mu J/bit in energy (encryption + decryption) under the UMC 0.18 mu m 1P6M process library. LELBC decreases energy and area consumption by 24.02% and 24.04%, respectively, compared to Midori. Finally, a temperature collection and encryption transmission platform is established. LELBC is deployed on the platform to encrypt the collected data, establishing the first line of defense for the secure transmission of smart agriculture sensor data.
通讯机构：
[Zhao, HH ] H;Hengyang Normal Univ, Sch Comp Sci & Technol, Hengyang, Peoples R China.;Hunan Univ, Natl Engn Lab Robot Visual Percept & Control Techn, Changsha, Peoples R China.
关键词：
Auto-encoder;Computer vision;De-raining;LSTM;SSIM loss function
摘要：
Video de-raining is of significant importance problem in computer vision as rain streaks adversely affect the visual quality of images and hinder subsequent vision-related tasks. Existing video de-raining methods still face challenges such as black shadows and loss of details. In this paper, we introduced a novel de-raining framework called STVDNet, which effectively solves the issues of black shadows and detail loss after de-raining. STVDNet utilizes a Spatial Detail Feature Extraction Module based on an auto-encoder to capture the spatial characteristics of the video. Additionally, we introduced an innovative interaction between the extracted spatial features and Spatio-Temporal features using LSTM to generate initial de-raining results. Finally, we employed 3D convolution and 2D convolution for the detailed processing of the coarse videos. During the training process, we utilized three loss functions, among which the SSIM loss function was employed to process the generated videos, aiming to enhance their detail structure and color recovery. Through extensive experiments conducted on three public datasets, we demonstrated the superiority of our proposed method over state-of-the-art approaches. We also provide our code and pre-trained models at
https://github.com/O-Y-ZONE/STVDNet.git
.
