Springer Link
Yang Liu, Junxue Guo, Hongpeng Zhou, Can Li, Xin Guo,
... 2D perovskites remains elusive. Herein, we report that π–π stacking intensity between aromatic cations determines structural stability ... derived low-dimensional perovskites. The BDAs without intermolecular π–π stacking form stable DJ 2D perovskites, while those showing strong π–π stacking tend to generate 1D and 0D architectures. Furthermore, the π–π stacking intensity highly relies on molecular symmetry and ...
Tópico(s): Covalent Organic Framework Applications
2024 - American Chemical Society | Journal of the American Chemical Society
Balkis Abdelaziz, Zouhour Mazouz, Bouzid Gassoumi, Nour El Islam Boukortt, Salvatore Patanè, S. Ayachi,
... small molecules follow a donor-linker-acceptor (D-π-A) motif, featuring p-phenylene as the electron donor, thiophene as the π-conjugated bridge, and NBD as the electron acceptor. ... of the absorption–emission spectra showed a prominent π → π* band followed by a weaker n → π* band. Remarkably, three compounds substituted with electron-donor ... emission band associated with the charge transfer n → π* transition of the nitro-functionalized molecules is quenched, similar to the π → π* electronic transition. Consequently, these compounds display a ...
Tópico(s): Nonlinear Optical Materials Studies
2024 - Elsevier BV | Journal of Molecular Liquids
Chengyang Zhang, Jie Cheng, Qingqing Wu, Songjun Hou, Sai Feng, Bo Jiang, Colin J. Lambert, Xike Gao, Yueqi Li, Jinghong Li,
Dipoles are widely involved in π-π interactions and are central to many chemical and biological functions, but their influence on the strength of π-π interactions remains unclear. Here, we report a study of π-π interaction between azulene-based, polar single molecules and ... of single-molecule conductance, we show that the π-stacked dimers formed by the azulene-based, polar ... the naphthalene-based, nonpolar molecules. Mechanical control of π-π interactions in both rotational and translational motion ...
Tópico(s): Graphene research and applications
2023 - American Chemical Society | Journal of the American Chemical Society
Na Liu, Run‐Tan Gao, Zong‐Quan Wu,
... bioelectronics, and other domains. The controlled synthesis of π-conjugated block polymers optimizes their performance and enables ... precise control of the self-assembled architectures of π-conjugated polymers remains a formidable challenge. Inspired by ... self-assembly. Incorporating a helical polymer into a π-conjugated polymer can induce asymmetric helical assemblies, leading ... functionalities.To control the self-assembly of architectures, π-conjugated polymers are usually synthesized into block copolymers ...
Tópico(s): Covalent Organic Framework Applications
2023 - American Chemical Society | Accounts of Chemical Research
Serra E. Ozturk, Recep İşci, Sheida Faraji, Berkay Sütay, Leszek A. Majewski, Turan Öztürk,
Novel conjugated donor- π -acceptor- π (D- π -A- π) type polymers (P1-P3), possessing thieno[3,2-b]thiophene (TT) with different aromatic substituents as donors, benzo[2], [1], [3] ... BT) as an acceptor and thiophene as a π -linker, were designed and synthesized via palladium-catalyzed ... withdrawing groups on the electronic properties of the π -extended polymers, their organic field-effect transistors (OFETs) ...
Tópico(s): Perovskite Materials and Applications
2023 - Elsevier BV | European Polymer Journal
R. Aaij, A. S. W. Abdelmotteleb, C. Abellán Beteta, F. Abudinén, T. Ackernley, B. Adeva, M. Adinolfi, P. Adlarson, H. Afsharnia, C. Agapopoulou, C. Aidala, S. Aiola, Z. Ajaltouni, S. Akar, K. Carvalho Akiba, J. Albrecht, F. Alessio, M. Alexander, A. Alfonso Albero, Zakariya Aliouche, P. Álvarez Cartelle, R. Amalric, S. Amato, J. L. Amey, Y. Amhis, L. An, L. Anderlini, M. Andersson, A. Andreianov, M. Andreotti, D. Andreou, D. Ao, F. Archilli, A. Artamonov, M. Artuso, E. Aslanides, M. Atzeni, B. Audurier, S. Bachmann, Marie Bachmayer, J. J. Back, A. Bailly-reyre, P. Baladrón Rodríguez, V. Balagura, W. Baldini, J. Baptista de Souza Leite, M. Barbetti, R. J. Barlow, S. Barsuk, W. Barter, M. Bartolini, F. Baryshnikov, Jan-Marc Basels, G. Bassi, B. Batsukh, A. Battig, A. Bay, A. Beck, M. Becker, F. Bedeschi, I. Bediaga, A. Beiter, V. Belavin, S. Belin, V. Bellée, K. Belous, I. Belov, I. Belyaev, G. Benane, G. Bencivenni, E. Ben-Haim, A. Berezhnoy, R. Bernet, S. Bernet Andres, D. Berninghoff, H. C. Bernstein, C. Bertella, A. Bertolin, C. Betancourt, F. Betti, Ia. Bezshyiko, S. Bhasin, J. Bhom, L. Bian, M. S. Bieker, N. V. Biesuz, S. Bifani, P. Billoir, A. Biolchini, M. Birch, F. C. R. Bishop, A. Bitadze, A. Bizzeti, Michele Piero Blago, T. Blake, F. Blanc, S. Blusk, D. Bobulska, J. A. Boelhauve, O. Boente García, Thomas Boettcher, A. S. Boldyrev, C. S. Bolognani, R. Bolzonella, N. Bondar, F. Borgato, S. Borghi, M. Borsato, J. T. Borsuk, Sonia Amina Bouchiba, T. J. V. Bowcock, A. Boyer, C. Bozzi, M. J. Bradley, S. Braun, A. Brea Rodríguez, J. Brodzicka, A. Brossa Gonzalo, J. Brown, D. Brundu, A. Buonaura, L. Buonincontri, A. T. Burke, C. Burr, A. Bursche, A. Butkevich, J. S. Butter, J. Buytaert, W. Byczynski, S. Cadeddu, H. Cai, R. Calabrese, Lukas Calefice, Stefano Calí, R. Calladine, M. Calvi, M. Calvo Gomez, P. Campana, D. H. Cámpora Pérez, A. Campoverde, S. Capelli, L. Capriotti, A. Carbone, G. Carboni, R. Cardinale, A. Cardini, T. Carli, P. Carniti, L. Carus, A. Casais Vidal, R. Caspary, G. Casse, M. Cattaneo, G. Cavallero, V. Cavallini, S. Celani, J. Cerasoli, D. Červenkov, Abbie Jane Chadwick, Matthew George Chapman, M. Charles, Ph. Charpentier, C. A. Chavez Barajas, M. Chefdeville, Chen Chen, S. Chen, Aleksei Chernov, S. Chernyshenko, V. Chobanova, Serhii Cholak, M. Chrzaszcz, A. Chubykin, V. Chulikov, X. Cid Vidal, M. F. Cicala, X. Cid Vidal, G. Ciezarek, G. Ciullo, P. E. L. Clarke, M. Clemencic, H. V. Cliff, J. Closier, J. L. Cobbledick, V. Coco, J. A. B. Coelho, J. Cogan, E. Cogneras, L. Cojocariu, P. Collins, T. Colombo, L. Congedo, A. Contu, N. Cooke, I. Corredoira, G. Corti, B. Couturier, D. C. Craik, J. Crkovská, M. Cruz Torres, R. Currie, C. L. Da Silva, S. Dadabaev, L. Dai, X. C. Dai, E. Dall’Occo, J. Dalseno, C. D’Ambrosio, J. Daniel, A. Danilina, P. d’Argent, J. E. Davies, A. Davis, O. De Aguiar Francisco, J. de Boer, K. De Bruyn, S. De Capua, M. De Cian, U. De Freitas Carneiro Da Graca, E. De Lucia, J. M. De Miranda, L. De Paula, M. De Serio, D. De Simone, P. De Simone, F. De Vellis, J. A. de Vries, C. T. Dean, F. Debernardis, D. Décamp, V. Dedu, L. Del Buono, B. Delaney, H.-P. Dembinski, V. Denysenko, O. Deschamps, F. Dettori, B. Dey, A. Di Cicco, P. Di Nezza, I. Diachkov, S. Didenko, L. Dieste Maronas, S. Ding, Vasyl Dobishuk, A. Dolmatov, C. Dong, A. M. Donohoe, F. Dordei, A. C. dos Reis, L. Douglas, A. G. Downes, P. Duda, M. W. Dudek, L. Dufour, V. Duk, P. Durante, M. M. Duras, J. M. Durham, D. Dutta, A. Dziurda, A. Dzyuba, S. Easo, U. Egede, V. Egorychev, S. Eidelman, C. Eirea Orro, S. Eisenhardt, E. Ejopu, S. Ek-In, L. Eklund, S. Ely, A. Ene, E. Epple, S. Escher, Jonas Nathanael Eschle, S. Esen, T. Evans, F. Fabiano, L. N. Falcao, Y. Fan, Bo Fang, L. Fantini, M. Faria, S. Farry, D. Fazzini, L. Felkowski, M. Féo, M. Fernández Gómez, Alex Daniel Fernez, F. Ferrari, L. Ferreira Lopes, F. Ferreira Rodrigues, S. Ferreres Sole, Martina Ferrillo, M. Ferro-Luzzi, S. Filippov,
... to originate from promptly produced D^{*+}→D^{0}π^{+} decays, and the charge of the companion pion ... in D^{0}→K^{-}K^{+} and D^{0}→π^{-}π^{+} decays, a_{K^{-}K^{+}}^{d} and a_{π^{-}π^{+}}^{d}, are derived by combining A_{CP}(K^{-} ... ΔA_{CP}=A_{CP}(K^{-}K^{+})-A_{CP}(π^{-}π^{+}), and other inputs, giving a_{K^{-}K^{+}}^{d}=(7.7±5.7)×10^{-4},a_{π^{-}π^{+}}^{d}=(23.2±6.1)×10^{-4},with ... for D^{0}→K^{-}K^{+} and D^{0}→π^{-}π^{+} decays, respectively. This is the first evidence ...
American Physical Society
Jinfeng Ge, Zhenyu Chen, Qinrui Ye, Lin Xie, Wei Song, Yuntong Guo, Jinna Zhang, Xinyu Tong, Jianqi Zhang, Erjun Zhou, Zhixiang Wei, Ziyi Ge,
There is always a dilemma between strong π-π stacking/crystallinity and suitable domain size for all-small-molecule organic solar cells (ASM-OSCs), which puts forward higher requirements for the ... substitution on end groups (SM-REH) enables improved π-π interaction and crystallinity but with decreased solubility and ... SM-R. In contrast, EH-substitution on the π-bridge (SM-EH-R) significantly suppresses π-π stacking and increases the solubility, resulting in the ... EH-R, namely, SM-EH-REH, recovers the π-π stacking strength and obtains a moderate efficiency ...
Tópico(s): Perovskite Materials and Applications
2023 - American Chemical Society | ACS Applied Materials & Interfaces
Samiul Islam, Pratik Dey, Saikat Kumar Seth,
... ray diffraction analysis. For complex (1), hydrogen bonding, π⋅⋅⋅π and lone pair (l.p.)···π interactions produce supramolecular assemblies, whereas for complex (2), hydrogen bonding, π⋅⋅⋅π, π⋅⋅⋅π+, π+⋅⋅⋅π, l.p···π play the pivotal role in building final solid- ...
Tópico(s): Crystal structures of chemical compounds
2023 - Elsevier BV | Polyhedron
Prantika Das, Samiul Islam, D. Das, Partha Pratim Ray, Saikat Kumar Seth,
... pyridine is stabilized through hydrogen bonds, C‒H···π, and numerous π-interactions together with π···π, π···π+, and π+···π+stacking. The cooperativity of the weak noncovalent interactions ... The entire assembly produces a rare combination of π···π/π···π+/π+···π+/π+···π extended ...
Tópico(s): Crystal structures of chemical compounds
2023 - Elsevier BV | Journal of Molecular Structure
Linglin Zhu, Qiuyun Lu, Taotao Bian, Panpan Yang, Yumin Yang, Luzhong Zhang,
... DN hydrogel is limited by poor fatigue resistance. π-π stacking is a non-covalent bonding interaction, which ... DN hydrogel was prepared by Michael addition and π-π stacking. The hybrid DN hydrogels with π-π stacking interactions have excellent mechanical strength and fatigue ... great biocompatibility and hemocompatibility. The DN hydrogels containing π-π stacking have the potential to fabricate robust hybrid ...
Tópico(s): Silk-based biomaterials and applications
2023 - American Chemical Society | ACS Biomaterials Science & Engineering
Martin Hoferichter, Bai-Long Hoid, Bastian Kubis, Dominic Schuh,
... the dominant contributions arise from the e + e − → π + π − channel, also IB in the subleading channels can ... provide such an analysis for e + e − → 3 π by extending our dispersive description of the process, ... in terms of a correction factor η 3 π that generalizes the analog treatment of virtual and final-state photons in the 2 π case. The global fit to the e + e − → 3 π data base, subject to constraints from analyticity, unitarity, ... 91(53)\times {10}^{-10} $$ a μ 3 π ≤ 1.8 GeV = 45.91 53 × 10 − 10 for the total 3 π contribution to the anomalous magnetic moment of the ...
Tópico(s): High-Energy Particle Collisions Research
2023 - Springer Nature | Journal of High Energy Physics
Han Shen, Congying Song, Fan Wang, Guo‐Xing Li, Yuliang Li,
... hybridized carbons by the self-assembly technique of π–π stacking of lithiated hexaethynylbezene under mild conditions. The ... the high self-assembly tendency of the highly π-conjugated backbone, the metal-acetylides with aromatic structure can be stacked with each other via π–π interactions to generate the metallized GDY QDs with ... GDY QDs (denoted as GDY-Li QDs) through π–π stacking of lithiated hexaethynylbezene (HEB-Li) under mild ... property of substituted Li. Owing to the highly π-conjugated structure and good molecular stability, HEB-Li ...
Tópico(s): Electrocatalysts for Energy Conversion
2023 - Chinese Chemical Society | CCS Chemistry
Xiaoqing Song, Guang Lu, Yi Man, Jing Zhang, Shuo Chen, Chunmiao Han, Hui Xu,
... electrons and steric hindrance to modulate intermolecular p-π and π-π interactions. With the rational orientations and spatial positions ... photophysical investigation indicate that the strongest intermolecular p-π and π-π electronic interplays of pCzTPP harmonize high transition probability ... stability of 3 ππ state, reflecting the p-π and π-π synergy in RTP process.
Tópico(s): Perovskite Materials and Applications
2023 - Wiley | Angewandte Chemie International Edition
... pH and time on the bimetallic corrosion of π-Al8Mg3FeSi6 phase and pure aluminum in acidic, neutral ... X-ray spectroscopy (EDX). The bimetallic corrosion of π-Al8Mg3FeSi6/Al couple was found to depend on ... 2 (acidic) and pH 6 (near-neutral), the π- phase functions as the anode while Al functioned ... 2 and 13 solutions, cathodic fluxes emerge from π- phase, and the anodic fluxes develop from Al. Whereas in pH 6 solution, self-dissolution of π- phase occurs and both cathodic anodic processes develop on the π- phase with no conspicuous electrochemical activity on Al. ...
Tópico(s): Aluminum Alloys Composites Properties
2023 - Elsevier BV | Electrochimica Acta
Zhang‐Meng Liu, Shuaiqi Yao, Anran Zhang, Yayao Li, Yunzhi Fu, Qixin Zhou,
... systems enhances photogenerated carrier separation efficiency due to π * electron delocalization resulting from π-π interactions. This study reports a conjugated molecular carbon-nitrogen homojunction (CNH) with inherent π * electron transitions, which intrinsically enriches electron-hole pairs ... its built-in electric field. CNH's intermolecular π-π stacking promotes efficient U(VI) reduction by boosting ... CNH's conjugated system. Heptazine integrity directly affects π-π * electron enhancement and transition, leading to a ...
Tópico(s): Advanced Photocatalysis Techniques
2023 - Elsevier BV | Applied Catalysis B Environment and Energy
Huinan Che, Jian Wang, Peifang Wang, Yanhui Ao, Juan Chen, Xin Gao, Fangyuan Zhu, Bin Liu,
... construct holey polymeric carbon nitride (PCN)-based donor-π-acceptor organic conjugated polymers via copolymerizing urea with 5-bromo-2-thiophenecarboxaldehyde (PCN-5B2T D-π-A OCPs). The resultant PCN-5B2T D-π-A OCPs extended the π-conjugate structure and introduced abundant micro-, meso-, and ... rate constant of the optimized PCN-5B2T D-π-A OCP for 2-mercaptobenzothiazole (2-MBT) removal ... that the photogenerated electrons in PCN-5B2T D-π-A OCPs are much easier to transfer from the donor tertiary amine group to the benzene π-bridge and then to the acceptor imine group, ...
Tópico(s): Perovskite Materials and Applications
2023 - American Chemical Society | JACS Au
Songjun Guo, Zhiyuan Zou, Yang Chen, Xinxin Long, Meng Liu, Xiaoping Li, Jihua Tan, Rongzhi Chen,
Dyes adsorption to biochar via hydrogen bonding, and π-π interaction alone have attracted much research attention, however, ... The synergistic effects of the hydrogen bonding and π-π interaction might improve the adsorption capacity and need ... that the synergism of the hydrogen bonding and π-π interaction improves the adsorption energies of BC-KN/ ... can be concluded that the hydrogen bonding and π-π interaction can synergize to significantly improve the adsorption ...
Tópico(s): Adsorption and biosorption for pollutant removal
2023 - Elsevier BV | Environmental Pollution
M. Ángeles Gutiérrez López, Mei‐Ling Tan, Antonio Frontera, Stefan Matile,
... ether cyclizations on the aromatic surface of anion−π catalysts stands out as a leading example of ... proposed early on, but the mechanism of anion−π autocatalysis has never been elucidated. Here, we show that anion−π autocatalysis is almost independent of peripheral crowding in substrate and product. Inaccessible asymmetric anion−π autocatalysis and sometimes erratic reproducibility further support that the origin of anion−π autocatalysis is more complex than originally assumed. The ... product on the catalytic aromatic surface. Efficient anion−π autocatalysis around equimolar amounts but poor activity in ...
Tópico(s): Protein Structure and Dynamics
2023 - American Chemical Society | JACS Au
Zachary T. Draper, Andrew D. Hanlon, Ben Hörz, Colin Morningstar, Fernando Romero-López, Stephen R. Sharpe,
... kaons at maximal isospin using lattice QCD, specifically π + K + , π + π + K + and K + K + π + . Utilizing the stochastic LapH method, we determine the ... p waves. This requires also results for the π + π + and K + K + spectrum, which have been obtained ... determination of the three-particle K matrix in π + π + K + and K + K + π + systems, finding statistically significant nonzero results in most ... and p waves in the K matrix for π + K + scattering, finding evidence for an attractive p - ...
Tópico(s): High-Energy Particle Collisions Research
2023 - Springer Nature | Journal of High Energy Physics
Ya‐Wen Zhang, Ye Lu, Li‐Ying Sun, Patrick D. Dutschke, Ming‐Ming Gan, Le Zhang, Alexander Hepp, Ying‐Feng Han, F. Ekkehardt Hahn,
... building blocks by utilizing solvophobic effects and/or π⋅⋅⋅π stacking interactions. The dinickel naphthobiscarbene complex syn-[1] ... enhanced stability in diluted solution, aided by additional π⋅⋅⋅π stacking interactions. The π⋅⋅⋅π stacking was augmented by the introduction of a ... catenane [4-IL](PF6 )4 , which shows strong π⋅⋅⋅π stacking interactions between the pyrene groups. This assembly ...
Tópico(s): Supramolecular Chemistry and Complexes
2023 - Wiley | Angewandte Chemie International Edition
Jie Xiao, Ziheng Xiao, Jinghui Hu, Xiaokai Gao, Muhammad Asim, Lun Pan, Chengxiang Shi, Xiangwen Zhang, Ji‐Jun Zou,
... through the rational molecular design, while constructing donor−π–acceptor (D−π–A) structures with larger π-electron delocalization to extend carrier migrating distance can ... we reported the design and construction of D−π–A CP systems by using pyrene, dibenzo[b, ... diethynylbenzene as the donor group, acceptor group, and π-linker units, respectively, for improving the photocatalytic performance. ... studies and experimental investigations reveal that the D−π–A structure can suppress charge recombination, minimize exciton ...
Tópico(s): Conducting polymers and applications
2022 - American Chemical Society | Macromolecules
Yingnan Sun, Dandan Wang, Yongfa Zhu,
... and PDI create bi-conjugated planar and double π-π stacking. • The bi-planar reduces the distance between PDI-NA molecules and enhances their π-π conjugation. • Ultrathin pore morphology accelerates the separation and ... acid (NA) to prepare a unique, bi-planar, π-π conjugated, ultrathin, porous supramolecular photocatalyst ( hp -PDi-NA). ... hormones (ethinylestradiol (EE)). The small steric hindrance, double π-π conjugation effect, and existence of layered pores with ...
Tópico(s): Luminescence and Fluorescent Materials
2022 - Elsevier BV | Chemical Engineering Journal
Xin Sheng, Hui Shi, Deng You, Xuan Ding, Mingming Peng, Penghui Shao, Liming Yang, Haozhi Wang, Xubiao Luo, Shenglian Luo,
Specific π δ+ –π δ- interaction between –C≡C– with vertical π bond in conjugated microporous polymers and electron-rich Pd center with π 5 8 δ - in PdCl 4 2- is ... the adsorption sites of PdCl 4 2- . • Strong π δ+ –π δ- interaction was formed between the –C≡C– ... The matched interaction between –C≡C– with vertical π bond and electron-rich Pd center with π 5 8 δ - exhibits exceptional PdCl 4 2- ... heavy metals. To regulate the electron density of π bond in –C≡C– to further reinforce the π δ+ –π δ- interaction, p -FCMP and o - ...
Tópico(s): Molecular Sensors and Ion Detection
2022 - Elsevier BV | Chemical Engineering Journal