Article
Chemistry, Multidisciplinary
Jin-Tai Lin, Deng-Gao Chen, Lan-Sheng Yang, Tai-Chun Lin, Yi-Hung Liu, Yu-Chiang Chao, Pi-Tai Chou, Ching-Wen Chiu
Summary: This study investigates the effects of various halogen-substituted chiral organic cations on the chiroptical properties of hybrid organic-inorganic perovskites (HOIPs). It was found that the HOIP with a chlorine-substituted chiral cation exhibits the highest circular dichroism (CD) and circular polarized luminescence (CPL) intensities, which can be correlated to the modulation of magnetic transition dipole and halogen-halogen interaction between organic cations and inorganic sheets.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2021)
Article
Chemistry, Multidisciplinary
Dongying Fu, Jianli Xin, Yueyue He, Shichao Wu, Xinyuan Zhang, Xian-Ming Zhang, Junhua Luo
Summary: The introduction of chirality into organic-inorganic hybrid perovskites is expected to achieve excellent photoelectric and nonlinear materials related to circular dichroism. By developing the SHG-CD effect, circularly polarized light can be distinguished in OIHPs bulk single crystals, extending the detection range to the near infrared region. The anisotropy factor (g(SHG-CD)) through SHG-CD signal is as high as 0.21.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2021)
Article
Materials Science, Multidisciplinary
Herman Duim, Maria Antonietta Loi
Summary: This article discusses the potential of chiral hybrid organic-inorganic metal halides (HMHs) in the field of optics, examining the impact of chiral transfer on electronic structure and optical properties. It further explores efforts to improve and tune the chiroptical response, while also proposing future research directions for enhancing chiral HMHs.
Article
Chemistry, Multidisciplinary
Po-Jung Huang, Kouji Taniguchi, Masato Shigefuji, Takatsugu Kobayashi, Masakazu Matsubara, Takao Sasagawa, Hiroyasu Sato, Hitoshi Miyasaka
Summary: The observation of the circular photogalvanic effect (CPGE) in new enantiomorphic 2D-OIHP lead iodides synthesized with organic chiral cations is reported, indicating the potential for engineering opto-spintronic functionalities. The CPGE photocurrents show light-helicity-dependent behavior and sign reversal based on the chirality of the designed 2D-OIHP lead iodides, suggesting the formation of a radial spin-polarized texture in k-space of chiral systems due to spin-momentum locking.
ADVANCED MATERIALS
(2021)
Article
Chemistry, Multidisciplinary
Jingying Wang, Haipeng Lu, Xin Pan, Junwei Xu, Haoliang Liu, Xiaojie Liu, Dipak R. Khanal, Michael F. Toney, Matthew C. Beard, Z. Valy Vardeny
Summary: Research has shown that integrating chiral organic ligands into two-dimensional hybrid organic-inorganic perovskites can introduce spintronics applications, leading to spin-dependent photovoltaic and photogalvanic responses. This discovery may have potential applications in optoelectronic devices sensitive to light helicity.
Article
Biochemistry & Molecular Biology
Shoma Hirokawa, Nagao Kobayashi, Soji Shimizu
Summary: The study elaborates inherently chiral subporphyrins by forming a fused pyran ring at the periphery, showing that the chiroptical properties can be controlled by peripheral substitution and meso-aryl substituents. The circular dichroism (CD) properties of chiral subporphyrins are largely affected by the peripheral substituents and the dihedral angles between the meso-aryl substituents and the subporphyrin core.
Article
Chemistry, Multidisciplinary
Qianwen Guan, Tingting Zhu, Zeng-Kui Zhu, Huang Ye, Shihai You, Peng Xu, Jianbo Wu, Xinyi Niu, Chengshu Zhang, Xitao Liu, Junhua Luo
Summary: In this study, a pair of unprecedented three-dimensional chiral halide perovskitoids was successfully synthesized, demonstrating unique chiroptoelectronic performance. The new material exhibited natural chiroptical activity and the ability to distinguish circularly polarized light, as well as sensitive X-ray detection performance.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Chemistry, Multidisciplinary
Xiaolei Zhu, Cheriehan Hessin, Aude Salame, Lydia Sosa-Vargas, David Kreher, Chihaya Adachi, Anna Proust, Pierre Mialane, Jerome Marrot, Aude Bouchet, Michel Sliwa, Stephane Mery, Benoit Heinrich, Fabrice Mathevet, Guillaume Izzet
Summary: The synthesis and characterization of the first mesogenic donor-acceptor polyoxometalate (POM)-based hybrid were described. In the solid state, the compound exhibited birefringent behavior with lamellar organization, and the fluorescence of the organic donor unit was significantly quenched, attributed to the occurrence of an intramolecular charge-separated state.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2021)
Article
Chemistry, Multidisciplinary
Niccolo Giaconi, Andrea Luigi Sorrentino, Lorenzo Poggini, Michela Lupi, Vincent Polewczyk, Giovanni Vinai, Piero Torelli, Agnese Magnani, Roberta Sessoli, Stefano Menichetti, Lorenzo Sorace, Caterina Viglianisi, Matteo Mannini
Summary: The study presents a novel strategy for depositing a sub-monolayer of enantiopure thia[4]helicene radical cations on a pre-functionalized Au(111) substrate, maintaining both the paramagnetic character and the chemical structure of these molecules at the nanoscale. Synchrotron-based X-ray natural circular dichroism confirms the preservation of the handedness of the thia[4]helicene on the surface.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2021)
Article
Optics
Hafiz Saad Khaliq, Inki Kim, Aima Zahid, Joohoon Kim, Taejun Lee, Trevon Badloe, Yeseul Kim, Muhammad Zubair, Kashif Riaz, Muhammad Qasim Mehmood, Junsuk Rho
Summary: This study demonstrates how to achieve large-scale chiro-optical effects in the visible regime using all-dielectric metasurfaces. By utilizing achiral nanofins and carefully engineered mutual coupling for interference effects, asymmetric transmission of 70% and average circular dichroism exceeding 60% were achieved.
PHOTONICS RESEARCH
(2021)
Article
Materials Science, Multidisciplinary
Bryan M. Cote, William R. Lenart, Christopher J. Ellison, Vivian E. Ferry
Summary: This study investigates the contributions of bulk and surface interactions on the circular dichroism spectra of silver-infilled Gyroid metamaterial films through simulations. It finds that surface interactions have a significant impact on circular dichroism and can be controlled by various factors.
ADVANCED OPTICAL MATERIALS
(2022)
Article
Chemistry, Inorganic & Nuclear
Guanghui Tian, Chuanbin Fan, Ziao Zong, Junli Wang, Feng Guo
Summary: In this study, a pair of chiral coordination compounds were synthesized and self-assembled into a 3D hydrogen-bonded framework with multiple chirality. The multi-level chirality structure showed enhanced circular dichroism response and obvious circular polarization luminescence (CPL) compared to the organic ligands and Cd[OH-bim](2)(NO3)(2) unit.
INORGANIC CHEMISTRY COMMUNICATIONS
(2023)
Article
Chemistry, Multidisciplinary
Zhihang Guo, Junzi Li, Changshun Wang, Rulin Liu, Jiechun Liang, Yang Gao, Jiaji Cheng, Wenjing Zhang, Xi Zhu, Ruikun Pan, Tingchao He
Summary: Hybrid organic-inorganic metal halides incorporating chiral organic molecules have been studied for their unique optical properties, leading to the synthesis of chiral hybrid copper halides. The chiral materials showed giant optical activity and highly efficient second harmonic generation, providing insights into the design of chiral materials for nonlinear photonic device applications.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2021)
Article
Nanoscience & Nanotechnology
Tzu-Pei Chen, Jun-Xiao Lin, Cheng-Chieh Lin, Chi-Ying Lin, We-Chen Ke, Di-Yan Wang, Hua-Shu Hsu, Chia-Chun Chen, Chun-Wei Chen
Summary: This work demonstrates the strong excitonic magneto-optic effects of magnetic circular dichroism and Faraday rotation in nonmagnetic two-dimensional organic-inorganic hybrid Ruddlesden-Popper perovskites at room temperature, opening up new research directions for MO and magneto-optoelectronic applications.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Chemistry, Multidisciplinary
Julian Full, Santosh P. Panchal, Julian Gotz, Ana-Maria Krause, Agnieszka Nowak-Krol
Summary: Helically chiral compounds with one and two boron atoms were synthesized using a modular approach, showing exceptional configurational stability and fluorescence properties. The compounds are proposed as primary structures of extended helices, with potential applications in materials science.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2021)
Article
Chemistry, Multidisciplinary
Jiaying Yu, Xianyun Hou, Chaoqi Zhai, Jie Li, Andrea Sartorel, Mauro Carraro, Zhuo Xin, Yuxing Huang
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2020)
Article
Chemistry, Multidisciplinary
Ruggero Bonetto, Roberto Altieri, Mirko Tagliapietra, Antonio Barbon, Marcella Bonchio, Marc Robert, Andrea Sartorel
Article
Chemistry, Physical
Francesco Rigodanza, Nadia Marino, Alessandro Bonetto, Antonio Marcomini, Marcella Bonchio, Mirco Natali, Andrea Sartorel
Summary: The cobalt substituted polyoxotungstate Co6 displays fast electron transfer kinetics to photogenerated Ru-III(bpy)(3)(3+), significantly faster than cobalt oxide nanoparticles. Mechanistic evidence suggests that the oxidation and transformation processes of Co6 under different pH conditions involve specific Co(II) aquo and hydroxo groups, and proceed through bimolecular kinetics or concerted proton electron transfer (CPET) mechanisms.
Article
Energy & Fuels
Ruggero Bonetto, Daniel Civettini, Francesco Crisanti, Andrea Sartorel
Summary: This study focuses on the electronic and spectroscopic features of Fe-I intermediates in five Fe(L-N2O2) complexes, and evaluates the electrocatalytic reduction of CO2 in the presence of phenol or trifluoroethanol as proton donors. The main findings include the correlation of Fe-II/I couple potentials with the electronic character of the L-N2O2 ligand, the reactivity of Fe-I species with CO2, the identification of Fe(salen) as a competent homogeneous electrocatalyst for CO2 reduction, and ligand-assisted decomposition routes for complexes bearing a ketylacetoneimine pendant under cathodic conditions.
Article
Chemistry, Organic
Estefania M. Martinis, Alejandro Montellano, Andrea Sartorel, Mauro Carraro, Maurizio Prato, Marcella Bonchio
Summary: The study examined the cycloaddition of azomethine ylides to C-60 in o-DCB, evaluating the impact of an IL additive and the boosting effect of MW-induced dielectric heating. The IL additive plays a dual role in stabilizing the ylide intermediate and promoting retro-cycloaddition at high temperatures. The experiments showed a preference for the selective formation of trans bis-fulleropyrrolidine regioisomers under the conditions explored, consistent with DFT computational analysis.
EUROPEAN JOURNAL OF ORGANIC CHEMISTRY
(2021)
Article
Nanoscience & Nanotechnology
Valentina Gentili, Daniele Pazzi, Sabrina Rizzo, Giovanna Schiuma, Edoardo Marchini, Stefania Papadia, Andrea Sartorel, Dario Di Luca, Francesca Caccuri, Carlo Alberto Bignozzi, Roberta Rizzo
Summary: The SARS-CoV-2 virus mainly spreads through small airborne aerosol particles and droplets, with contaminated surfaces also recognized as an important route of transmission. Two transparent polymeric compounds synthesized with silver and benzalkonium ions showed effective antimicrobial and antiviral properties against various bacteria and viruses, including SARS-CoV-2.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Biochemistry & Molecular Biology
Giulia Alice Volpato, Elena Colusso, Lorenzo Paoloni, Mattia Forchetta, Francesco Sgarbossa, Vito Cristino, Marco Lunardon, Serena Berardi, Stefano Caramori, Stefano Agnoli, Federica Sabuzi, Paolo Umari, Alessandro Martucci, Pierluca Galloni, Andrea Sartorel
Summary: Extensive efforts have been dedicated to the development of photoelectrodes combining semiconductor materials and organic dyes in dye-sensitized photoelectrochemical cells for artificial photosynthesis. The optimized materials consist of mesoporous SnO2 layers with 2.5 μm film thickness combined with a KuQuinone dye with a 3-carboxylpropyl-anchoring chain, achieving a light-harvesting efficiency of 93%.
PHOTOCHEMICAL & PHOTOBIOLOGICAL SCIENCES
(2021)
Article
Chemistry, Multidisciplinary
Pietro Franceschi, Catia Nicoletti, Ruggero Bonetto, Marcella Bonchio, Mirco Natali, Luca Dell'Amico, Andrea Sartorel
Summary: The utilization of carbon dioxide as a raw material in various fields is appealing, with the potential to form new C-C bonds through its fixation into organic scaffolds. The study found that when the basicity of the carbanion C- exceeds a threshold value (approximately 36), the carboxylation reaction becomes thermodynamically favorable.
FRONTIERS IN CHEMISTRY
(2021)
Review
Chemistry, Multidisciplinary
Mirco Natali, Andrea Sartorel, Albert Ruggi
Summary: The political and environmental problems associated with fossil fuel usage have led to the exploration of alternative strategies for green and renewable fuels. The light-driven water splitting process has been extensively studied as a means to obtain hydrogen. However, the water oxidation reaction remains challenging. Recent research efforts have focused on alternative oxidation processes, such as the oxidation of organic compounds. Hybrid photoanodes, which combine light-absorbing components with catalysts, have been investigated for photoelectrochemical reactions. Challenges and future perspectives, particularly in the activation of C-H bonds, are also discussed briefly.
FRONTIERS IN CHEMISTRY
(2022)
Article
Chemistry, Multidisciplinary
Thomas Gobbato, Francesco Rigodanza, Elisabetta Benazzi, Paolo Costa, Marina Garrido, Andrea Sartorel, Maurizio Prato, Marcella Bonchio
Summary: As a natural photoelectrolyzer for oxygen delivery, PSII is difficult to replicate with man-made constructs. However, by using the quantasome hypothesis, PSII mimicry can be simplified to a photocatalytic ensemble called QS, which can trigger water oxidation using visible-light quanta. In this study, PSII-inspired QS are self-assembled into hierarchical photosynthetic nanostacks, consisting of bis-cationic perylenebisimides as chromophores and deca-anionic tetraruthenate polyoxometalates as water oxidation catalysts. The QS are interlocked with TEG cross-linkers using a supramolecular and click-chemistry strategy, resulting in QS-TEG(lock) with enhanced water solvation, controlled growth, and significantly increased oxygenic photocurrent compared to the first generation QS.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2022)
Article
Chemistry, Multidisciplinary
Yunshuo Yang, Giulia Alice Volpato, Elena Rossin, Nicola Peruffo, Francesco Tumbarello, Catia Nicoletti, Ruggero Bonetto, Lorenzo Paoloni, Paolo Umari, Elena Colusso, Luca Dell'Amico, Serena Berardi, Elisabetta Collini, Stefano Caramori, Stefano Agnoli, Andrea Sartorel
Summary: Dye-sensitized photoanodes are assembled using a nanosized rods form of quinacridone dye on different substrate slides. These photoanodes display extended absorption and ultrafast electron injection into the semiconductor. The reactivity of the dye is used for C-H bond activation, providing a mechanistically oriented route for the design of selective organic transformations.
Article
Chemistry, Multidisciplinary
Tommaso Bortolato, Gianluca Simionato, Marie Vayer, Cristian Rosso, Lorenzo Paoloni, Edmondo M. Benetti, Andrea Sartorel, David Leboeuf, Luca Dell'Amico
Summary: This study reports the design and characterization of 9-aryl dihydroacridines (9ADA) and 12-aryl dihydrobenzoacridines (12ADBA) as strong reducing organic photocatalysts. These photocatalysts exhibit locally excited or charge-transfer excited states, and can perform photoredox defunctionalization processes and atom transfer radical polymerization under visible light. They also feature a catalytic multisite proton-coupled electron transfer (MS-PCET) mechanism, enabling the reduction of redox-inert substrates under single-photon excitation. These new photocatalysts are expected to open new mechanistic pathways in the field of photocatalysis.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2023)
Article
Chemistry, Organic
Pietro Franceschi, Elena Rossin, Giulio Goti, Angelo Scopano, Alberto Vega-Penaloza, Mirco Natali, Deepak Singh, Andrea Sartorel, Luca Dell'Amico
Summary: In this study, we developed a novel photocarboxylation method using an organic photoredox catalyst and different dihydropyridine compounds in combination with an organic base. Through mechanistic investigations, we discovered the key role of a hydrogen bonding complex between the dihydropyridine and the base. This method allowed for the synthesis of carboxylic acids under mild reaction conditions, with good yields and synthetic versatility.
JOURNAL OF ORGANIC CHEMISTRY
(2023)
Article
Chemistry, Organic
Francesca Arcudi, Andrea Sartorel, Anna Fortunato, Tomas Marangoni, Nicola Demitri, Michele Maggini, Luka Dordevic
Summary: A new triflatophenylporphyrin building block for Pd-catalyzed cross-coupling reactions is proposed. Compared to halophenylporphyrins, its purification is much easier. The triflatophenylporphyrin is also suitable in microwave-assisted Sonogashira cross-coupling and has been used to prepare a donor-acceptor array.
EUROPEAN JOURNAL OF ORGANIC CHEMISTRY
(2023)
Article
Chemistry, Multidisciplinary
Thomas Gobbato, Giulia Alice Volpato, Andrea Sartorel, Marcella Bonchio
Summary: The conversion of light into chemical energy is crucial for the transition to renewable and clean solar fuels. The success of photosynthesis depends not only on the performance of individual components, but also on their integration in optimized structures. The cellular structure of natural photosynthesis can inspire the design of artificial photosynthesis. This article presents a case study on the design of artificial photosynthetic systems, highlighting the importance of molecular structures in enhancing overall performance.