Transition Metal Chemistry最新文献

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Characterization of silver-coated copper particles synthesized by mechanical activation and electroless plating 通过机械活化和无电解电镀法合成的银涂层铜颗粒的表征
IF 1.6 4区 化学
Transition Metal Chemistry Pub Date : 2024-06-04 DOI: 10.1007/s11243-024-00587-6
T. Rasouli, M. Pourabdoli, V. A. Lashgari, A. Ghaderi Hamidi
{"title":"Characterization of silver-coated copper particles synthesized by mechanical activation and electroless plating","authors":"T. Rasouli,&nbsp;M. Pourabdoli,&nbsp;V. A. Lashgari,&nbsp;A. Ghaderi Hamidi","doi":"10.1007/s11243-024-00587-6","DOIUrl":"10.1007/s11243-024-00587-6","url":null,"abstract":"<div><p>The effects of mechanical activation on the characteristics of copper and synthesized silver-coated copper powders were investigated. The characterization was carried out using particle size analysis, XRD, BET, SEM, AAS, EDS-map analyses, and electrical resistivity measurements. The obtained results showed that d80 of copper powder changes from 60 to 200 µm as the milling time increases from 0 to 1 h. Meanwhile, by expanding the milling time to more than 2 h, the d80 of the powders decreased to about 50 µm. The specific surface area of copper powder increased from 0.04 to 0.21 m<sup>2</sup>/g for milling duration of 0.5–1 h. The specific surface area reached to a maximum value of 0.3 m<sup>2</sup>/g for the milling duration of 16 h. Morphological examination of the core–shell particles produced from 4 to 16 h ball-milled copper powder revealed that surface of the copper particles is completely covered with silver. Studies showed that the apparent density of the samples prepared from Cu–Ag core–shell powder and copper powder decreased from 7.2 to 5.8 g/cm<sup>3</sup> and from 6.2 to 5.8 g/cm<sup>3</sup>, respectively, by increasing the ball milling time from 0 to 16 h. The electrical resistivity of the core–shell bulk samples is always constant (0.25 Ω-cm), but the resistivity of copper bulk samples increased (1–5 Ω-cm) with longer milling time (0–16 h).</p></div>","PeriodicalId":803,"journal":{"name":"Transition Metal Chemistry","volume":null,"pages":null},"PeriodicalIF":1.6,"publicationDate":"2024-06-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141252257","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Synthesis, structure, adsorption and electrochemical properties of the new two-dimensional cobalt coordination polymer based on bifunctional ligand 基于双功能配体的新型二维钴配位聚合物的合成、结构、吸附和电化学特性
IF 1.6 4区 化学
Transition Metal Chemistry Pub Date : 2024-05-28 DOI: 10.1007/s11243-024-00586-7
Wei Yao, Ru Yang, Baotong Xu, He Yu, Le Kang, Andrei S. Potapov, Vladimir P. Fedin, Enjun Gao
{"title":"Synthesis, structure, adsorption and electrochemical properties of the new two-dimensional cobalt coordination polymer based on bifunctional ligand","authors":"Wei Yao,&nbsp;Ru Yang,&nbsp;Baotong Xu,&nbsp;He Yu,&nbsp;Le Kang,&nbsp;Andrei S. Potapov,&nbsp;Vladimir P. Fedin,&nbsp;Enjun Gao","doi":"10.1007/s11243-024-00586-7","DOIUrl":"10.1007/s11243-024-00586-7","url":null,"abstract":"<div><p>A novel two-dimensional coordination polymer {[Co(Htia)<sub>2</sub>(C<sub>2</sub>H<sub>5</sub>OH)<sub>2</sub>]·H<sub>2</sub>O}<sub>n</sub> <b>(1)</b> (H<sub>2</sub>tia = 5-(1H-1,2,4-triazol-1-yl)isophthalic acid, C<sub>10</sub>N<sub>3</sub>O<sub>4</sub>H<sub>7</sub>) was successfully synthesized by a solvothermal method using H<sub>2</sub>tia containing –COOH and –N bifunctional groups as ligands and transition metal Co as the central ion. <b>1</b> was analyzed by XRD, IR, UV and TG. Single-crystal X-ray diffraction analysis shows that Co<sup>2+</sup> ions in <b>1</b> are the hexagonal distorted octahedral geometry. Neighboring Co<sup>2+</sup> ions form a two-dimensional grid using the Htia ligand as the rigid skeleton. The adjacent 2D layers interact through hydrogen bonds to build a three-dimensional supramolecular crystalline material. Based on the laminar structure of <b>1</b>, we investigated the adsorption capacity of <b>1</b> on two cationic dyes, crystalline violet and Janus green B. The results show that <b>1</b> has a certain adsorption capacity and the maximum adsorption amount of the dyes can reach as high as 56 and 176 mg g<sup>−1</sup>, respectively. The electrochemical experiment shows that <b>1</b> has good electrocatalytic activity in the electrolyte solution of 0.01 M KOH not only for the oxidation of H<sub>2</sub>O<sub>2</sub>, but also for the oxidation of ascorbic acid.</p></div>","PeriodicalId":803,"journal":{"name":"Transition Metal Chemistry","volume":null,"pages":null},"PeriodicalIF":1.6,"publicationDate":"2024-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141167255","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
The syntheses, characterization, thermal properties of asymmetrical La β-diketonate and their application as ALD precursor for La2O3 films 不对称 La β-二酮酸酯的合成、表征、热性能及其在 La2O3 薄膜 ALD 前体中的应用
IF 1.6 4区 化学
Transition Metal Chemistry Pub Date : 2024-05-17 DOI: 10.1007/s11243-024-00583-w
Wenyong Zhao, Hong Zhou, Jiahao Li, Yuchen Lu, Yuqiang Ding
{"title":"The syntheses, characterization, thermal properties of asymmetrical La β-diketonate and their application as ALD precursor for La2O3 films","authors":"Wenyong Zhao,&nbsp;Hong Zhou,&nbsp;Jiahao Li,&nbsp;Yuchen Lu,&nbsp;Yuqiang Ding","doi":"10.1007/s11243-024-00583-w","DOIUrl":"10.1007/s11243-024-00583-w","url":null,"abstract":"<div><p>In this paper, three complexes La<sub>2</sub>(thd)<sub>6</sub> (thd = 2,2,6,6-tetramethyl-3,5-heptanedione, <b>1</b>)<sub>,</sub> La<sub>2</sub>(tmod)<sub>6</sub> (tmod = 2,2,6,6-tetramethyl octane-3, 5-dionates, <b>2</b>) and La<sub>2</sub>(ibpm)<sub>6</sub> (ibpm = 2,2,6-trimethyl-3, 5-heptane-dionates, <b>3</b>) were synthesized by one-step method and characterized with <sup>1</sup>H-NMR, <sup>13</sup>C-NMR and X-ray single-crystal diffraction. The melting point and TGA data demonstrated that the asymmetry of the ligand and the number of flexible joints could improve the volatility of the complex. With the help of asymmetry and flexible joint, La<sub>2</sub>(tmod)<sub>6</sub> was selected as ALD precursor to deposit La<sub>2</sub>O<sub>3</sub> film on SiO<sub>2</sub>/Si (100) wafer. The self-limited deposition results demonstrated that La<sub>2</sub>(tmod)<sub>6</sub> is better precursor than reported La<sub>2</sub>(thd)<sub>6</sub> and La(thd)<sub>3</sub>-DMEA (DMEA = <i>N</i>,<i>N</i>-dimethylethylenediamine).</p></div>","PeriodicalId":803,"journal":{"name":"Transition Metal Chemistry","volume":null,"pages":null},"PeriodicalIF":1.6,"publicationDate":"2024-05-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140965252","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
N-doped TiO2 for photocatalytic degradation of colorless and colored organic pollutants under visible light irradiation 掺杂 N 的 TiO2 在可见光照射下光催化降解无色和有色有机污染物
IF 1.6 4区 化学
Transition Metal Chemistry Pub Date : 2024-05-14 DOI: 10.1007/s11243-024-00584-9
Abdul Wafi, Liszulfah Roza, Gerald Ensang Timuda, Demas Aji, Deni Shidqi Khaerudini, Nono Darsono, Nurfina Yudasari, Erzsébet Szabó-Bárdos, Ottó Horváth, Mohammad Mansoob Khan
{"title":"N-doped TiO2 for photocatalytic degradation of colorless and colored organic pollutants under visible light irradiation","authors":"Abdul Wafi,&nbsp;Liszulfah Roza,&nbsp;Gerald Ensang Timuda,&nbsp;Demas Aji,&nbsp;Deni Shidqi Khaerudini,&nbsp;Nono Darsono,&nbsp;Nurfina Yudasari,&nbsp;Erzsébet Szabó-Bárdos,&nbsp;Ottó Horváth,&nbsp;Mohammad Mansoob Khan","doi":"10.1007/s11243-024-00584-9","DOIUrl":"10.1007/s11243-024-00584-9","url":null,"abstract":"<div><p>Titanium dioxide (TiO<sub>2</sub>) can only be stimulated by UV light, making its real application for photocatalytic water treatments ineffective, particularly under sunlight and visible light irradiation. As a result, significant efforts have been conducted over the last decades to fabricate visible light-active TiO<sub>2</sub> photocatalysts through band-gap engineering. Herein, nitrogen-doped titanium dioxide (N-TiO<sub>2</sub>) photocatalysts were effectively prepared by utilizing a simple sol–gel process with ethanol as a single solvent and urea as the nitrogen source under ambient temperature and pressure. The effects of urea concentration (0, 2, 4, 6 urea/TTIP mol ratio) on the optical, structural, morphological, and photocatalytic properties of the photocatalysts were investigated. SEM morphology revealed an aggregated nano-spherical shape in all samples. HR-TEM and SAED patterns showed an anatase phase of 2-N-TiO<sub>2</sub>. The X-ray diffraction analysis also showed a pure anatase phase for pure TiO<sub>2</sub>, 2-N-TiO<sub>2</sub>, and 4-N-TiO<sub>2</sub>. However, the crystalline phase transformed to amorphous for 6-N-TiO<sub>2</sub>. The crystallite size reduced from 14.16 to 9.76 nm upon increasing urea concentration. The band-gap energy of N-TiO<sub>2</sub> also decreased from 3.25 to 2.95 eV. Furthermore, the photocatalytic experiment was examined for the degradation of colorless and colored pollutants, such as salicylic acid (SA), methyl blue (MB), and rhodamine B (RhB). The results showed the photocatalytic activity of 2-N-TiO<sub>2</sub> exhibited an optimum efficiency compared to the 4-N-TiO<sub>2</sub> and 6-N-TiO<sub>2</sub>, for photocatalytic degradation of SA (<i>k</i> = 0.0265 min<sup>−1</sup>), MB (<i>k</i> = 0.0180 min<sup>−1</sup>) and RhB (<i>k</i> = 0.1071 min<sup>−1</sup>), under visible light irradiation. Therefore, the results suggest that crystallite size, urea (as an N dopant) concentration, and organic model pollutants were critical parameters for the photocatalytic activity of N-TiO<sub>2</sub> under visible irradiation.</p></div>","PeriodicalId":803,"journal":{"name":"Transition Metal Chemistry","volume":null,"pages":null},"PeriodicalIF":1.6,"publicationDate":"2024-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140939465","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
A new [SiMo12O40]4−-based metal organic framework: synthesis, structure, photo-/electro-catalytic and absorption properties 基于[SiMo12O40]4 的新型金属有机框架:合成、结构、光催化/电催化和吸收特性
IF 1.6 4区 化学
Transition Metal Chemistry Pub Date : 2024-05-11 DOI: 10.1007/s11243-024-00585-8
Jia-Qi Geng, Yang Lu, Lu Yang, Xue Jiang, Lu-Kai Huang, Xiao-Shu Qu, Yan-Yan Yang, Hua Jin, Xue-Mei Li, Xiao-Yang Yu
{"title":"A new [SiMo12O40]4−-based metal organic framework: synthesis, structure, photo-/electro-catalytic and absorption properties","authors":"Jia-Qi Geng,&nbsp;Yang Lu,&nbsp;Lu Yang,&nbsp;Xue Jiang,&nbsp;Lu-Kai Huang,&nbsp;Xiao-Shu Qu,&nbsp;Yan-Yan Yang,&nbsp;Hua Jin,&nbsp;Xue-Mei Li,&nbsp;Xiao-Yang Yu","doi":"10.1007/s11243-024-00585-8","DOIUrl":"10.1007/s11243-024-00585-8","url":null,"abstract":"<div><p>The water pollution problems caused by organic dyes, inorganic ions and other pollutants are becoming more and more serious, and the removal of pollutants from wastewater is still a challenge. A polyoxometalate-based metal organic framework [Pr<sub>4</sub>(bpdc)<sub>4</sub>(H<sub>2</sub>O)<sub>10</sub>]·SiMo<sub>12</sub>O<sub>40</sub>·3H<sub>2</sub>O (<b>1</b>) (H<sub>2</sub>bpdc = 2,2′-bipyridine-6,6′-dicarboxylic acid) was synthesized for multi-functional treatment of pollutants in water. Structural analysis revealed that Keggin-type polyanions are sandwiched between adjacent lanthanide-organic layers. Electrochemical and dye removal experiments showed that compound <b>1</b> can not only reduce NO<sub>2</sub><sup>−</sup> and BrO<sub>3</sub><sup>−</sup> pollutants in water by electrocatalytic oxidation, but also photocatalytically degrade and adsorb cationic organic dye pollutants in water, and even adsorb cationic organic dyes from mixed dyes solution. It has been proved that compound <b>1</b> is a multifunctional water treatment agent.</p></div>","PeriodicalId":803,"journal":{"name":"Transition Metal Chemistry","volume":null,"pages":null},"PeriodicalIF":1.6,"publicationDate":"2024-05-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140942423","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Bis-cyclometalated Ir(III) complexes with carbazole/triphenylamine donor fragment for oxygen sensing 含咔唑/三苯胺供体片段的双环金属化铱(III)配合物用于氧传感
IF 1.6 4区 化学
Transition Metal Chemistry Pub Date : 2024-04-28 DOI: 10.1007/s11243-024-00582-x
Hongcui Yu, Bo Yu, Yajiao Song, Jiawei Li
{"title":"Bis-cyclometalated Ir(III) complexes with carbazole/triphenylamine donor fragment for oxygen sensing","authors":"Hongcui Yu,&nbsp;Bo Yu,&nbsp;Yajiao Song,&nbsp;Jiawei Li","doi":"10.1007/s11243-024-00582-x","DOIUrl":"10.1007/s11243-024-00582-x","url":null,"abstract":"<div><p>Bis-cyclometalated Ir(III) complexes Ir(ppy-Carbazole)<sub>2</sub>(acac) and Ir(ppy-NPh<sub>3</sub>)<sub>2</sub>(acac) (acac = acetylacetonate) based on the 2-phenylpyridine (ppy) with carbazole or triphenylamine moieties were prepared, characterized and tested as phosphorescent materials. The photophysical properties of the two complexes were investigated by comparing them with the unsubstituted parent Ir(III) complex Ir(ppy)<sub>2</sub>(acac). Complexes Ir(ppy-Carbazole)<sub>2</sub>(acac) and Ir(ppy-NPh<sub>3</sub>)<sub>2</sub>(acac) with carbazole/triphenylamine-appended C^N cyclometalating ligands exhibit larger molar extinction coefficients and longer luminescence lifetimes compared to the unsubstituted parent Ir(ppy)<sub>2</sub>(acac). Based on a rational design strategy by combining a ppy unit and electron-donating carbazole or triphenylamine segment, we investigated the merits of the carbazole or triphenylamine group substituted cyclometalated Ir(III) complexes for oxygen sensing. These probes demonstrate optimal luminescence dynamics for oxygen monitoring in the range of 0–100% oxygen levels when immobilized in an ethyl cellulose matrix. Importantly, the complex Ir(ppy-NPh<sub>3</sub>)<sub>2</sub>(acac) exhibits a longer luminescence lifetime (<i>τ</i> = 3.60 μs) and a higher oxygen sensitivity (<i>I</i><sub>0</sub>/<i>I</i><sub>100</sub> = 15.0, <i>K</i><sub>SV</sub> = 0.02582 Torr<sup>−1</sup>) compared with the other complexes.</p></div>","PeriodicalId":803,"journal":{"name":"Transition Metal Chemistry","volume":null,"pages":null},"PeriodicalIF":1.6,"publicationDate":"2024-04-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140812349","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Structural, magnetic, and electronic structure of the nanostructured (CoMn)50Ni50 powders used in dye discoloration via a heterogeneous Fenton-like process 通过类似芬顿的异构过程使染料褪色的纳米结构 (CoMn)50Ni50 粉末的结构、磁性和电子结构
IF 1.6 4区 化学
Transition Metal Chemistry Pub Date : 2024-04-17 DOI: 10.1007/s11243-024-00581-y
Karima Dadda, Souad Djerad, Safia Alleg, Noureddine Dadda, Selma Rabhi, El-Kébir Hlil
{"title":"Structural, magnetic, and electronic structure of the nanostructured (CoMn)50Ni50 powders used in dye discoloration via a heterogeneous Fenton-like process","authors":"Karima Dadda,&nbsp;Souad Djerad,&nbsp;Safia Alleg,&nbsp;Noureddine Dadda,&nbsp;Selma Rabhi,&nbsp;El-Kébir Hlil","doi":"10.1007/s11243-024-00581-y","DOIUrl":"10.1007/s11243-024-00581-y","url":null,"abstract":"<div><p>Nanocrystalline (CoMn)<sub>50</sub>Ni<sub>50</sub> powders were prepared by the mechanical alloying process in a high-energy planetary ball mill under an argon atmosphere. Morphology, structure, microstructure, and magnetic properties were investigated using scanning electron microscopy, X-ray diffraction, and magnetometry. The (CoMn)<sub>50</sub>Ni<sub>50</sub> powders exhibit a highly disordered solid solution with a lattice parameter of <i>a</i> = 0.3542(4) nm, and undergo a ferromagnetic to paramagnetic transition at a Curie temperature of about 700 K. Different magnetic parameters were extracted from the approach to magnetic saturation. The electronic structure of the ferromagnetic powders was performed by the self-consistent ab initio calculations based on the Korringa–Kohn–Rostocker (KKR) method combined with the Coherent Potential Approximation (CPA). The total DOS is mainly due to the 3d-like states of the constituent elements Co, Mn, and Ni. The powders were tested in the discoloration reaction of Methylene Blue under different operation conditions via a heterogeneous Fenton-like process.</p></div>","PeriodicalId":803,"journal":{"name":"Transition Metal Chemistry","volume":null,"pages":null},"PeriodicalIF":1.6,"publicationDate":"2024-04-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140616238","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Efficient degradation of metronidazole in wastewater by FeOx/GAC catalytic ozonation 利用 FeOx/GAC 催化臭氧高效降解废水中的甲硝唑
IF 1.6 4区 化学
Transition Metal Chemistry Pub Date : 2024-04-03 DOI: 10.1007/s11243-024-00571-0
Na Wang, Chenxi Zhan, Junzhuo Li, Dan Liu, Junjie Xiong, Geshan Zhang, Yin-an Ming
{"title":"Efficient degradation of metronidazole in wastewater by FeOx/GAC catalytic ozonation","authors":"Na Wang,&nbsp;Chenxi Zhan,&nbsp;Junzhuo Li,&nbsp;Dan Liu,&nbsp;Junjie Xiong,&nbsp;Geshan Zhang,&nbsp;Yin-an Ming","doi":"10.1007/s11243-024-00571-0","DOIUrl":"10.1007/s11243-024-00571-0","url":null,"abstract":"<div><p>To remove the metronidazole, the iron oxides loaded on granular activated carbon (FeO<sub>x</sub>-GAC) were prepared by the impregnation–calcination approach. The physicochemical properties of the catalysts were characterized by electron microscopy (SEM), transmission electron microscopy (TEM), Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD) and X-ray photoelectron spectroscopy (XPS). The results show that FeO<sub>x</sub>-GAC has a porous structure, in which the iron oxides with a variety of valence states are smoothly attached on the activated carbon. The catalytic activity of FeO<sub>x</sub>-GAC was evaluated for metronidazole removal, exhibiting great catalytic efficiency of the catalyst. Besides, the catalytic ozonation of metronidazole was optimized by varying the dose of ozone and catalyst, as well as the pH of the solution.</p></div>","PeriodicalId":803,"journal":{"name":"Transition Metal Chemistry","volume":null,"pages":null},"PeriodicalIF":1.6,"publicationDate":"2024-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140578507","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Palladium(II) halide complexes of N,N,S-tridentate Schiff bases: synthesis, structural studies in solution and solid state, and analysis of Hirshfeld surfaces N,N,S-三叉席夫碱的钯(II)卤化物配合物:合成、溶液和固态结构研究以及希尔斯菲尔德表面分析
IF 1.6 4区 化学
Transition Metal Chemistry Pub Date : 2024-03-25 DOI: 10.1007/s11243-024-00580-z
Jesús-Alberto Alvarez-Hernández, Noemí Andrade-López, José G. Alvarado-Rodríguez, Oscar Muñoz-Granados, Gloria Sánchez-Cabrera, Diego Martínez-Otero
{"title":"Palladium(II) halide complexes of N,N,S-tridentate Schiff bases: synthesis, structural studies in solution and solid state, and analysis of Hirshfeld surfaces","authors":"Jesús-Alberto Alvarez-Hernández,&nbsp;Noemí Andrade-López,&nbsp;José G. Alvarado-Rodríguez,&nbsp;Oscar Muñoz-Granados,&nbsp;Gloria Sánchez-Cabrera,&nbsp;Diego Martínez-Otero","doi":"10.1007/s11243-024-00580-z","DOIUrl":"10.1007/s11243-024-00580-z","url":null,"abstract":"<div><p>The synthesis and characterization of bromo- and iodo complexes of Pd(II) containing tridentate anionic Schiff bases, derived from the ring-opening of 2-R-2-(2-pyridyl)benzothiazoline precursors (R = H, <b>1</b>; R = Me, <b>2</b>; R = C<sub>6</sub>H<sub>5</sub>, <b>3</b>; R = C<sub>5</sub>H<sub>4</sub>N, <b>4</b>) is described. The [Pd(<b>L</b><sup><b><i>n</i></b></sup>)<b>X</b>] complexes [for <b>X</b> = Br: <i>n</i> = 1 (<b>1a</b>), <i>n</i> = 2 (<b>2a</b>), <i>n</i> = 3 (<b>3a</b>), and <i>n</i> = 4, (<b>4a</b>); for <b>X</b> = I: <i>n</i> = 1 (<b>1b</b>), <i>n</i> = 2 (<b>2b</b>), <i>n</i> = 3 (<b>3b</b>), and <i>n</i> = 4 (<b>4b</b>)] were characterized in solution and in solid state by NMR and IR spectroscopy and by elemental analyses. In all complexes, the corresponding anionic Schiff ligand {<b>L</b><sup><b><i>n</i></b></sup>}<sup>−</sup> displayed a κ<sup>2</sup><i>N</i>κ<i>S</i>-tridentate coordination mode. X-ray diffraction studies of [Pd<b>(L</b><sup><b><i>3</i></b></sup>)Br] (<b>3a</b>), [Pd<b>(L</b><sup><b><i>3</i></b></sup>)I] (<b>3b</b>), [Pd<b>(L</b><sup><b><i>4</i></b></sup>)Br] (<b>4a</b>), and [Pd<b>(L</b><sup><b><i>4</i></b></sup>)I] (<b>4b</b>) complexes showed the formation of two five-membered chelate rings, with a distorted square planar geometry around the Pd(II) cation. Crystal structures of <b>3a</b>, <b>3b</b>, <b>4a</b>, and <b>4b</b> are stabilized by non-classical C–H···π, C–H···S, and C–H···<b>X</b> hydrogen bonding. The Hirshfeld surface analysis showed that the H···H contacts are predominant, and the C–H···S or C–H···π interactions were the major contributions in the stacking of the molecular complexes.</p></div>","PeriodicalId":803,"journal":{"name":"Transition Metal Chemistry","volume":null,"pages":null},"PeriodicalIF":1.6,"publicationDate":"2024-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140298454","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Quantitative assessment of the nature and strength of Au‒dithiolate bond in gold(III) bis(1,2-dithiolate) homoleptic complexes 定量评估双(1,2-二硫醇)金(III)同质络合物中金-二硫醇键的性质和强度
IF 1.6 4区 化学
Transition Metal Chemistry Pub Date : 2024-03-20 DOI: 10.1007/s11243-024-00579-6
Hanieh Mehri, Yasin Gholiee
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