Organic Materials最新文献_第9页

Cyclotetrabenzil-Based Porous Organic Polymers with High Carbon Dioxide Affinity 高二氧化碳亲和性环四苯甲醚基多孔有机聚合物

Organic Materials Pub Date : 2021-04-01 DOI: 10.1055/a-1512-5753

T. Ashirov, Maymounah Alrayyani, K. Song, O. Miljanić, Ali Coskun

{"title":"Cyclotetrabenzil-Based Porous Organic Polymers with High Carbon Dioxide Affinity","authors":"T. Ashirov, Maymounah Alrayyani, K. Song, O. Miljanić, Ali Coskun","doi":"10.1055/a-1512-5753","DOIUrl":"https://doi.org/10.1055/a-1512-5753","url":null,"abstract":"Abstract Porous organic polymers (POPs) incorporating macrocyclic units have been investigated in recent years in an effort to transfer macrocycles' intrinsic host–guest properties onto the porous networks to achieve complex separations. In this regard, highly interesting building blocks are presented by the family of cyclotetrabenzoin macrocycles with rigid, well-defined, electron-deficient cavities. This macrocycle shows high affinity towards linear guest molecules such as carbon dioxide, thus offering an ideal building block for the synthesis of CO2-philic POPs. Herein, we report the synthesis of a POP through the condensation reaction between cyclotetrabenzil and 1,2,4,5-tetraaminobenzene under ionothermal conditions using the eutectic zinc chloride/sodium chloride/potassium chloride salt mixture at 250 °C. Notably, following the condensation reaction, the macrocycle favors three-dimensional (3D) growth rather than a two-dimensional one while retaining the cavity. The resulting polymer, named 3D-mPOP, showed a highly microporous structure with a BET surface area of 1142 m2 g−1 and a high carbon dioxide affinity with a binding enthalpy of 39 kJ mol−1. Moreover, 3D-mPOP showed very high selectivity for carbon dioxide in carbon dioxide/methane and carbon dioxide/nitrogen mixtures.","PeriodicalId":93348,"journal":{"name":"Organic Materials","volume":"03 1","pages":"346 - 352"},"PeriodicalIF":0.0,"publicationDate":"2021-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1055/a-1512-5753","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44133713","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: 3

Polymers Made by Inverse Vulcanization for Use as Mercury Sorbents 反向硫化制备的用作汞吸收剂的聚合物

Organic Materials Pub Date : 2021-04-01 DOI: 10.1055/a-1502-2611

J. Chalker, M. Mann, Max J H Worthington, Louisa J. Esdaile

引用次数: 19

Structure–Assembly–Property Relationships of Simple Ditopic Hydrogen-Bonding-Capable π-Conjugated Oligomers 简单双位氢键共轭π低聚物的结构-组装-性质关系

Organic Materials Pub Date : 2021-04-01 DOI: 10.1055/a-1534-1508

Asmerom O. Weldeab, Cory T. Kornman, Lei Li, D. Starkenburg, Xueying Zhao, D. E. Fagnani, Sara J. Sadovy, S. Perry, J. Xue, R. K. Castellano

{"title":"Structure–Assembly–Property Relationships of Simple Ditopic Hydrogen-Bonding-Capable π-Conjugated Oligomers","authors":"Asmerom O. Weldeab, Cory T. Kornman, Lei Li, D. Starkenburg, Xueying Zhao, D. E. Fagnani, Sara J. Sadovy, S. Perry, J. Xue, R. K. Castellano","doi":"10.1055/a-1534-1508","DOIUrl":"https://doi.org/10.1055/a-1534-1508","url":null,"abstract":"Abstract A series of simple ditopic hydrogen-bonding-capable molecules functionalized with 2,4-diamino-1,3,5-triazine (DAT), barbiturate (B), and phthalhydrazide (PH) on both termini of a 2,2′-bithiophene linker were designed and synthesized. The intrinsic electronic structures of the ditopic DAT, PH, and B molecules were investigated with ground-state density functional theory calculations. Their solution absorbance was investigated with UV-vis, where it was found that increasing size of R group substituents on the bithiophene linker resulted in a general blue-shift in solution absorbance maximum. The solid-state optical properties of ditopic DAT and B thin films were evaluated by UV-vis, and it was found that the solid-state absorbance was red-shifted with respect to solution absorbance in all cases. The three DAT molecules were vacuum-thermal-deposited onto Au(111) substrates and the morphologies were examined using scanning tunneling microscopy. (DAT-T)2 was observed to organize into six-membered rosettes on the surface, whereas (DAT-TMe)2 formed linear assemblies before and after thermal annealing. For (DAT-Toct)2 , an irregular arrangement was observed, while (B-TMe)2 showed several co-existent assembly patterns. The work presented here provides fundamental molecular–supramolecular relationships useful for semiconductive materials design based on ditopic hydrogen-bonding-capable building blocks.","PeriodicalId":93348,"journal":{"name":"Organic Materials","volume":"03 1","pages":"390 - 404"},"PeriodicalIF":0.0,"publicationDate":"2021-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1055/a-1534-1508","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41953913","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

Supramolecular Chirogenesis Engineered by Pt(II)···Pt(II) Metal–Metal Interactions Pt(II)···Pt(II)金属-金属相互作用工程的超分子热成因

Organic Materials Pub Date : 2021-04-01 DOI: 10.1055/a-1512-5965

Chengpeng Wei, Mingyang Liu, Yifei Han, Hua Zhong, Feng Wang

引用次数: 0

Dimeric Phenazinothiadiazole Acceptors in Bulk Heterojunction Solar Cells 体异质结太阳能电池中的二聚非那嗪噻唑受体

Organic Materials Pub Date : 2021-04-01 DOI: 10.1055/s-0041-1726459

Lukas Ahrens, Yvonne J. Hofstetter, Barış Çelik, J. Butscher, F. Rominger, Jan Freudenberg, Y. Vaynzof, U. Bunz

引用次数: 1

Boosting the Stability of Boron Peroxides through Subphthalocyanine Coordination 亚酞菁配位提高过氧化物硼的稳定性

Organic Materials Pub Date : 2021-04-01 DOI: 10.1055/s-0041-1727093

Jorge Labella, Elisa López-Serrano, T. Torres

引用次数: 2

Efficient Solar Cells Based on a Polymer Donor with β-Branching in Trialkylsilyl Side Chains 基于三烷基甲硅烷基侧链具有β-支化的聚合物供体的高效太阳能电池

Organic Materials Pub Date : 2021-04-01 DOI: 10.1055/s-0041-1726427

Haijun Bin, M. Wienk, R. Janssen

{"title":"Efficient Solar Cells Based on a Polymer Donor with β-Branching in Trialkylsilyl Side Chains","authors":"Haijun Bin, M. Wienk, R. Janssen","doi":"10.1055/s-0041-1726427","DOIUrl":"https://doi.org/10.1055/s-0041-1726427","url":null,"abstract":"Abstract Side-chain engineering is an important strategy in designing novel polymer semiconductor materials for high-efficient organic solar cells. The use of trialkylsilyl side chains can improve the photovoltaic efficiency by decreasing the energy of the HOMO of the polymer and improving its crystallinity and hole mobility. Compared to simple linear derivatives, α-branching in the alkyl groups of trialkylsilyl side chains causes strong aggregation and excessive phase separation in the photoactive layer, leading to poor device performance. β-Branching of the alkyl groups has not yet been used in trialkylsilyl side chains. Herein, we describe a new polymer (J77) with triisobutylsilyl side chains to investigate the effect of β-branching on the molecular aggregation, optical properties, energy levels, and photovoltaic properties. We find that compared to α-branching, β-branching of alkyl groups in trialkylsilyl side chains significantly reduces aggregation. This enables J77 to form blend morphologies in films that provide high-efficient solar cells in combination with different non-fullerene acceptors. Moreover β-branching of the alkyl groups in trialkylsilyl side chains lowers the HOMO energy level of J77 and increases the open-circuit voltage of J77-based solar cells without sacrificing short-circuit current density or fill factor.","PeriodicalId":93348,"journal":{"name":"Organic Materials","volume":"03 1","pages":"134 - 140"},"PeriodicalIF":0.0,"publicationDate":"2021-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1055/s-0041-1726427","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47287420","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

Synthesis and Solvatochromic Behavior of Zwitterionic Donor–Bridge–Acceptor Systems with Oligo(p-phenylene) Spacers 含低聚(对苯)间隔剂的两性离子供体-桥体-受体体系的合成及其溶剂致变色行为

Organic Materials Pub Date : 2021-04-01 DOI: 10.1055/s-0041-1725075

I. Zharinova, Nicolau Saker Neto, Tze Cin Owyong, J. White, Wallace W. H. Wong

引用次数: 1

Supramolecular Thiophene-Based Materials: A Few Examples of the Interplay between Synthesis, Optoelectronic Properties and Applications 超分子噻吩基材料:合成、光电性能和应用之间相互作用的几个例子

Organic Materials Pub Date : 2021-04-01 DOI: 10.1055/s-0041-1730934

F. Di Maria, M. Zangoli, G. Barbarella

{"title":"Supramolecular Thiophene-Based Materials: A Few Examples of the Interplay between Synthesis, Optoelectronic Properties and Applications","authors":"F. Di Maria, M. Zangoli, G. Barbarella","doi":"10.1055/s-0041-1730934","DOIUrl":"https://doi.org/10.1055/s-0041-1730934","url":null,"abstract":"Abstract Supramolecular nanostructured thiophene based materials with optoelectronic functions are of wide current interest and are playing a crucial role in different fields of nanoscience and nanotechnology. This short review gives a concise report of some particularly interesting examples from our own work concerning thiophene-based supramolecular architectures at multiple length scales, their function and application in devices. We start with some general considerations on the great chemical diversity of thiophene derivatives and their supramolecular architectures. Then we focus on how the supramolecular organization of specific thiophene derivatives may generate nanostructures that enable new functions and applications in devices. For each example, we report the synthesis of the corresponding thiophene derivatives. 1. Introduction 2. Supramolecular Organization may Impart New Functions to the System 3. Supramolecular and Optoelectronic Properties of Oligothiophene-S,S-dioxides 4. Colloidal Nanoparticles formed by Self-Assembly of Thiophene-Based Polymers 5. Conclusions and Outlook","PeriodicalId":93348,"journal":{"name":"Organic Materials","volume":"03 1","pages":"321 - 336"},"PeriodicalIF":0.0,"publicationDate":"2021-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1055/s-0041-1730934","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42218481","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: 2

Dithienothiazine Copolymers – Synthesis and Electronic Properties of Novel Redox-Active Fluorescent Polymers 二噻吩并噻唑共聚物——新型氧化还原活性荧光聚合物的合成和电子性能

Organic Materials Pub Date : 2021-04-01 DOI: 10.1055/a-1528-6301

J. Nau, T. Mueller

引用次数: 0