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Ammonothermal Synthesis and Crystal Structure of the Ternary Amide Na2Ba(NH2)4 三元酰胺 Na2Ba(NH2)4 的氨热合成和晶体结构
Zeitschrift für anorganische und allgemeine Chemie Pub Date : 2024-06-02 DOI: 10.1002/zaac.202400053
F. M. Engelsberger, Kristian Witthaut, W. Schnick
{"title":"Ammonothermal Synthesis and Crystal Structure of the Ternary Amide Na2Ba(NH2)4","authors":"F. M. Engelsberger, Kristian Witthaut, W. Schnick","doi":"10.1002/zaac.202400053","DOIUrl":"https://doi.org/10.1002/zaac.202400053","url":null,"abstract":"The ternary amide Na2Ba(NH2)4 was synthesized at ammonothermal conditions (870 K, 135 MPa) in custom‐built high‐pressure autoclaves. The compound was structurally characterized using X‐ray diffraction and crystallizes in space group Pccn (no. 56) with lattice parameters a = 10.6492(2), b = 7.8064(2) and c = 8.1046(2) Å. To the best of our knowledge, the structure type has not yet been observed in any ternary amide before and can be described as a defective variant of the NaCl structure type. The presence of amide ions in the compound is verified by Fourier‐transform infrared (FTIR) spectroscopy and the experimental spectrum is compared to the theoretical spectrum obtained through density functional theory (DFT) calculations. Na2Ba(NH2)4 complements the range of reported ternary alkali metal alkaline‐earth metal amides with the smallest Shannon radius ratio of rA/AE = 0.76. The influence of this ratio on the formation of the new structure type is discussed as well. The characterization of intermediate species such as this ternary amide extends the understanding of the ammonothermal synthesis and can be useful for synthetic control in the formation of nitrides at ammonothermal conditions.","PeriodicalId":23934,"journal":{"name":"Zeitschrift für anorganische und allgemeine Chemie","volume":"19 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-06-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141273955","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Front Cover: On the Equilibrium of Mono‐ and Dinuclear Cu(II) Dimethylglyoxime Complexes and its Exploitation for the Simple Preparation of Cu(I) Salts [Cu(CH3CN)4]X (X=ClO4−, BF4−, OTf−) (Z. Anorg. Allg. Chem. 9‐10/2024) 封面论单核和双核铜(II)二甲基乙二醛肟配合物的平衡及其在简单制备铜(I)盐[Cu(CH3CN)4]X (X=ClO4-, BF4-, OTf-) 中的应用 (Z. Anorg. Allg. Chem. 9-10/2024)
Zeitschrift für anorganische und allgemeine Chemie Pub Date : 2024-06-01 DOI: 10.1002/zaac.202480901
Raphael I. Petrikat, Thomas Frick, Sabine Becker
{"title":"Front Cover: On the Equilibrium of Mono‐ and Dinuclear Cu(II) Dimethylglyoxime Complexes and its Exploitation for the Simple Preparation of Cu(I) Salts [Cu(CH3CN)4]X (X=ClO4−, BF4−, OTf−) (Z. Anorg. Allg. Chem. 9‐10/2024)","authors":"Raphael I. Petrikat, Thomas Frick, Sabine Becker","doi":"10.1002/zaac.202480901","DOIUrl":"https://doi.org/10.1002/zaac.202480901","url":null,"abstract":"","PeriodicalId":23934,"journal":{"name":"Zeitschrift für anorganische und allgemeine Chemie","volume":"40 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141194802","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Electromagnetic Wave Absorption Properties of Single‐Source‐Precursor Derived CNWs/Ni2Si/SiOC Nanocomposites 单源前驱体衍生 CNWs/Ni2Si/SiOC 纳米复合材料的电磁波吸收特性
Zeitschrift für anorganische und allgemeine Chemie Pub Date : 2024-05-31 DOI: 10.1002/zaac.202300236
Ting Chen, Hanzi Du, Ralf Riedel, Zhaoju Yu
{"title":"Electromagnetic Wave Absorption Properties of Single‐Source‐Precursor Derived CNWs/Ni2Si/SiOC Nanocomposites","authors":"Ting Chen, Hanzi Du, Ralf Riedel, Zhaoju Yu","doi":"10.1002/zaac.202300236","DOIUrl":"https://doi.org/10.1002/zaac.202300236","url":null,"abstract":"This work successfully fabricated a novel CNWs/Ni<jats:sub>2</jats:sub>Si/SiOC nanocomposite ceramic material using a single‐source‐precursor derived ceramic approach. The material exhibits <jats:italic>in‐situ</jats:italic> formation of carbon nanowires (CNWs) and multiple core‐shell nanoparticles such as Ni<jats:sub>2</jats:sub>Si@C and SiC@C. The reaction mechanism of the precursor, the microstructure and phase composition, and the ceramics′ electromagnetic wave (EMW) absorbing properties were thoroughly investigated and discussed. The obtained CNWs/Ni<jats:sub>2</jats:sub>Si/SiOC nanocomposite ceramics possesses a minimum reflection loss (RLmin) of −43.5 dB, indicating excellent EMW absorbing performance. The <jats:italic>in‐situ</jats:italic> formation of CNWs and multi‐core‐shell nanoparticles (Ni<jats:sub>2</jats:sub>Si@C and SiC@C) in the ceramics play a crucial role in enhancing their EMW absorbing properties compared to pure SiOC ceramics.","PeriodicalId":23934,"journal":{"name":"Zeitschrift für anorganische und allgemeine Chemie","volume":"20 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-05-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141189324","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
An Iminophosphinite Pincer Iridium Complex: Synthesis and Catalytic Tool for Alkane Transfer Dehydrogenations 一种亚氨基膦钳形铱络合物：烷烃转移脱氢的合成和催化工具
Zeitschrift für anorganische und allgemeine Chemie Pub Date : 2024-05-31 DOI: 10.1002/zaac.202400028
Jesvita Cardozo, Ouchan He, Wanli Ma, Kallol Ray, Thomas Braun
{"title":"An Iminophosphinite Pincer Iridium Complex: Synthesis and Catalytic Tool for Alkane Transfer Dehydrogenations","authors":"Jesvita Cardozo, Ouchan He, Wanli Ma, Kallol Ray, Thomas Braun","doi":"10.1002/zaac.202400028","DOIUrl":"https://doi.org/10.1002/zaac.202400028","url":null,"abstract":"A [(POCN)Ir(H)(OAc)] complex bearing an iminophosphinite pincer ligand was synthesized. The complex showed catalytic transfer dehydrogenation of various linear and cyclic alkanes with reasonable conversions and a maximum TON of 400 for n‐octane. A catalytic isomerization of 1‐octene to yield internal octenes was also possible. It is notable that the catalyst could perform catalytic transfer dehydrogenation even at a temperature of 100 °C with a TON of 100.","PeriodicalId":23934,"journal":{"name":"Zeitschrift für anorganische und allgemeine Chemie","volume":"192 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-05-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141194658","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Selective Synthesis of New Hexaalkylbicyclo[1.1.1]pentasilanes with Improved Solubility 选择性合成具有更好溶解性的新型六烷基双环[1.1.1]五硅烷
Zeitschrift für anorganische und allgemeine Chemie Pub Date : 2024-05-22 DOI: 10.1002/zaac.202400056
Yukihiro Morino, S. Ishida, T. Iwamoto
{"title":"Selective Synthesis of New Hexaalkylbicyclo[1.1.1]pentasilanes with Improved Solubility","authors":"Yukihiro Morino, S. Ishida, T. Iwamoto","doi":"10.1002/zaac.202400056","DOIUrl":"https://doi.org/10.1002/zaac.202400056","url":null,"abstract":"Molecular structures and properties of molecular silicon clusters and oligo/polysilanes depend on the substituents on the silicon skeletons. Herein, we report the synthesis of new bicyclo[1.1.1]pentasilanes (BPS) having various alkyl substituents (ethyl, iBu, or 2‐ethylbutyl) at the bridge silicon atoms. All new BPS are characterized by NMR spectroscopy, MS spectrometry, and single crystal X‐ray diffraction (sc‐XRD) analysis. Introduction of longer alkyl groups and unsymmetrical substitution of alkyl groups at the bridge positions on the BPS skeleton substantially improve the solubility toward organic solvents, while the electronic properties are similar to each other.","PeriodicalId":23934,"journal":{"name":"Zeitschrift für anorganische und allgemeine Chemie","volume":"14 11","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-05-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141112525","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
In situ crystallization of methanesulfonic acid, CH3SO3H, and serendipitous single crystal formation of its anhydride, (CH3)2S2O5 甲磺酸 CH3SO3H 的原位结晶及其酸酐 (CH3)2S2O5 的偶然单晶形成
Zeitschrift für anorganische und allgemeine Chemie Pub Date : 2024-05-22 DOI: 10.1002/zaac.202400019
David van Gerven, Alisha Mertens, Katrin Eppers, Jasper Nickelsen, Mathias Wickleder
{"title":"In situ crystallization of methanesulfonic acid, CH3SO3H, and serendipitous single crystal formation of its anhydride, (CH3)2S2O5","authors":"David van Gerven, Alisha Mertens, Katrin Eppers, Jasper Nickelsen, Mathias Wickleder","doi":"10.1002/zaac.202400019","DOIUrl":"https://doi.org/10.1002/zaac.202400019","url":null,"abstract":"Methanesulfonic acid, CH3SO3H, has been crystallized using an in situ technique on a single crystal diffractometer. The crystal structure is monoclinic (P21/c, Z = 4, a = 842.07(4) pm, b = 582.20(3) pm, c = 820.38(4) pm, β = 106.459(2)°) and stamped by the presence of strong hydrogen bonds. Single crystals of the anhydride of methanesulfonic acid, (CH3)2S2O5, formed as a side product in the reaction of bis‐trimethylsilyl‐sulfate, [(CH3)3SiO]2SO2 with SO3 in a sealed glass ampoule. The monoclinic crystal structure (P21/n, Z = 12, a = 1794.5(2) pm, b = 831.75(7) pm, 1383.4(1) pm, β = 110.630(4)°) shows three crystallographically different (CH3)2S2O5 molecules in the unit cell. According to the orientation of the CH3 groups with respect to each other the (CH3)2S2O5 molecule appears as the so‐called trans‐conformer. The structure of both molecules is corroborated by quantum mechanical DFT calculations.","PeriodicalId":23934,"journal":{"name":"Zeitschrift für anorganische und allgemeine Chemie","volume":"7 12","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-05-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141113436","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Recent Advances in Machine Learning Assisted Hydrogel Flexible Sensing 机器学习辅助水凝胶柔性传感技术的最新进展
Zeitschrift für anorganische und allgemeine Chemie Pub Date : 2024-05-11 DOI: 10.1002/zaac.202400051
Song Zhou, Dengke Song, Lisha Pu, Wenlong Xu
{"title":"Recent Advances in Machine Learning Assisted Hydrogel Flexible Sensing","authors":"Song Zhou, Dengke Song, Lisha Pu, Wenlong Xu","doi":"10.1002/zaac.202400051","DOIUrl":"https://doi.org/10.1002/zaac.202400051","url":null,"abstract":"Hydrogel flexible sensors are widely used in wearable devices, health care, intelligent robots and other fields due to their excellent flexibility, biocompatibility and high sensitivity. With the development of single sensor to multi‐channel and multi‐mode sensor network, the sensor data also presents the characteristics of multi‐dimension, complex and massive. Traditional data analysis methods can no longer meet the data analysis requirements of hydrogel flexible sensor networks. The introduction of machine learning (ML) technology optimizes the process of data analysis. With the continuous development of multi‐layer neural network technology and the improvement of computer performance, deep learning (DL) algorithm is increasingly used to achieve higher efficiency and accuracy, provides a powerful tool for data analysis of hydrogel flexible sensor, and accelerates the intelligent process of hydrogel flexible sensor equipment. This paper introduces the classification of hydrogel flexible sensors and the working mechanism and common algorithms of ML, and summarizes the application of ML technology to assist hydrogel flexible sensors in data analysis in the fields of health care and information recognition. This review will provide inspiration and reference for integrating ML technology into the field of hydrogel flexible sensors.","PeriodicalId":23934,"journal":{"name":"Zeitschrift für anorganische und allgemeine Chemie","volume":"54 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-05-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140927970","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Highly Twisted Ladder Oligosilanes Bearing Phenyl and tert‐Butyldimethylsilyl Groups 含苯基和叔丁基二甲基硅基的高扭曲梯形寡硅烷
Zeitschrift für anorganische und allgemeine Chemie Pub Date : 2024-05-10 DOI: 10.1002/zaac.202400034
Soichiro Kyushin, Koichi Arai, Ken-ichiro Kanno
{"title":"Highly Twisted Ladder Oligosilanes Bearing Phenyl and tert‐Butyldimethylsilyl Groups","authors":"Soichiro Kyushin, Koichi Arai, Ken-ichiro Kanno","doi":"10.1002/zaac.202400034","DOIUrl":"https://doi.org/10.1002/zaac.202400034","url":null,"abstract":"Two stereoisomers of bicyclic ladder oligosilanes bearing phenyl and tert‐butyldimethylsilyl groups were synthesized, and their structures and electronic properties are compared with previously reported perisopropyl‐substituted analog. These novel ladder oligosilanes have highly twisted structures with the twist angles between the two terminal Si–Si bonds of av. 37.7 and 39.8°. The UV spectra of these compounds show bathochromically shifted absorption maxima with the longest wavelength compared with that of the perisopropyl‐substituted bicyclic ladder oligosilane. The electronic properties of the ladder oligosilanes were analyzed by theoretical calculations.","PeriodicalId":23934,"journal":{"name":"Zeitschrift für anorganische und allgemeine Chemie","volume":"21 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-05-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140927880","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Complexes of Alkali Metal and the Ammonium Ion with the Cyclodimethylsiloxane ligands D7 and D8 (D = Me2SiO) 碱金属和铵离子与环二甲基硅氧烷配体 D7 和 D8（D = Me2SiO）的配合物
Zeitschrift für anorganische und allgemeine Chemie Pub Date : 2024-05-09 DOI: 10.1002/zaac.202400036
Carsten von Hänisch, Roman-Malte Richter
{"title":"Complexes of Alkali Metal and the Ammonium Ion with the Cyclodimethylsiloxane ligands D7 and D8 (D = Me2SiO)","authors":"Carsten von Hänisch, Roman-Malte Richter","doi":"10.1002/zaac.202400036","DOIUrl":"https://doi.org/10.1002/zaac.202400036","url":null,"abstract":"We present complexes of alkali metal ions and the ammonium ion with the large cyclodimethylsiloxanes D7 and D8 (D = Me2SiO). The formation of such complexes is accompanied by rearrangements of the ligands to form complexes with a suitable ring size for the metal used. These rearrangements could be suppressed by suitable reaction conditions and rapid work‐up of the reaction mixtures. This enabled the isolation of [Li(D7)][GaI4] (1), [Li(D8)][GaI4] (2), [Na(D8)][GaI4] (3), [K(D8)][GaI4] (4) and [NH4(D8)][GaI4] (5). All of the prepared compounds were analysed using single‐crystal X‐ray diffraction as well as multinuclear NMR spectroscopy. This reveals very different coordination modes in the compounds obtained.","PeriodicalId":23934,"journal":{"name":"Zeitschrift für anorganische und allgemeine Chemie","volume":"90 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-05-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140928103","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Construction of [P4442]2[IDA]/Zirconium Metal‐Organic Framework (UiO‐66) for Curing with Epoxy Resin 构建用于与环氧树脂固化的 [P4442]2[IDA]/锆金属有机框架 (UiO-66)
Zeitschrift für anorganische und allgemeine Chemie Pub Date : 2024-05-08 DOI: 10.1002/zaac.202400031
Zhiwei Fan, Yilin Ma, Encheng Liu, Junjie Cheng, Fengfeng Chen, Bin Ling, Ningyu Di, Junkuo Gao
{"title":"Construction of [P4442]2[IDA]/Zirconium Metal‐Organic Framework (UiO‐66) for Curing with Epoxy Resin","authors":"Zhiwei Fan, Yilin Ma, Encheng Liu, Junjie Cheng, Fengfeng Chen, Bin Ling, Ningyu Di, Junkuo Gao","doi":"10.1002/zaac.202400031","DOIUrl":"https://doi.org/10.1002/zaac.202400031","url":null,"abstract":"Curing agents for epoxy resin (EP) are one of the most important branches in the polymer materials field due to their enormous potential in many fields, but constructing them in a well‐controlled curing temperature remains challenging. Herein, a novel curing agent is constructed by the zirconium metal‐organic framework (UiO‐66) and [P4442]2[IDA] through an impregnation method. [P4442]2[IDA]@UiO‐66 is utilized as a functional nanofiller and curing agent to construct the [P4442]2[IDA]@UiO‐66/EP nanocomposites. The chemical structures of [P4442]2[IDA]@UiO‐66 were investigated by XRD, SEM, DSC, and TG characterizations. The various [P4442]2[IDA]@UiO‐66 with different loading amounts of [P4442]2[IDA] were used to investigate the curing behaviors of the EP‐51. The DSC results confirm that the curing temperature of the [P4442]2[IDA]@UiO‐66/EP is higher than that of [P4442]2[IDA]/EP. In addition, the kinetic parameters and the activation energy of the curing reaction were acquired according to the fitting of Kissinger equation and Ozawa equation. The drying time of [P4442]2[IDA]@UiO‐66/EP system at 40 °C was enhanced 17 times compare to that of [P4442]2[IDA]/EP system. This study opens new avenues for the rational design of EP nanocomposites by employing ionic liquids@MOFs composite materials as curing agent for wide engineering applications.","PeriodicalId":23934,"journal":{"name":"Zeitschrift für anorganische und allgemeine Chemie","volume":"89 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-05-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140927965","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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