Article
Polymer Science
Arielle Mann, Marcus Weck
Summary: This contribution describes the synthesis of a novel unsymmetrical substituted tetraalkoxy[2.2]paracyclophane-1,9-diene and its polymerization to produce copolymers with alternating cis,trans-poly(p-phenylenevinylene)s. The synthesized polymers exhibit unique optical properties.
Article
Chemistry, Applied
C. Zippel, Z. Hassan, A. Q. Parsa, J. Hohmann, S. Brase
Summary: The method of kinetic resolution of 4-acetyl[2.2] paracyclophane via ruthenium-catalyzed enantioselective hydrogenation has been successfully realized, providing enantiomerically pure derivatives with high yields, which are useful for the production of chiral compounds.
ADVANCED SYNTHESIS & CATALYSIS
(2021)
Article
Materials Science, Multidisciplinary
Meng-Yuan Zhang, Qian Peng, Cui-Hua Zhao
Summary: The paper presents reversible and high-contrast mechanochromic luminescence properties of a triarylborane-based [2.2]paracyclophane, demonstrating remarkable fluorescence changes with high fluorescence quantum yields. The compound's rigid and congested structure helps to suppress intermolecular interactions, allowing intense fluorescence in both morphological phases. Theoretical calculations suggest two-color fluorescence switching due to different degrees of structural relaxation in the excited state.
JOURNAL OF MATERIALS CHEMISTRY C
(2021)
Article
Chemistry, Multidisciplinary
Mohammed B. Alshammari, Ashraf A. Aly, Stefan Braese, Martin Nieger, Lamiaa E. Abd El-Haleem
Summary: Various (thio)ureas, semicarbazides, thiosemicarbazides, thiazolidones, and oxadiazole compounds derived from the [2.2]paracyclophane molecule were successfully synthesized starting with 4-(2.2]paracyclophanyl)isocyanate. The structures of the obtained products were determined using NMR, mass spectrometry, infrared spectroscopy, and high-resolution mass spectrometry (HRMS). X-ray crystallography was used to further confirm the assigned structures.
Article
Chemistry, Physical
Yin-Sheng Lin, Hsin Li, Wen-Sheng Yu, Szu-Tan Wang, Yi-Min Chang, Tsung-Hsin Liu, Shao-Sian Li, Motonori Watanabe, Hsiao-Han Chiu, Di-Yan Wang, Yuan Jay Chang
Summary: This study demonstrates that using novel WS-HTMs instead of spiro-OMeTAD can enhance the performance of perovskite solar cells, with devices based on WS-1 and WS-2 HTMs showing better power conversion efficiency and stability. By improving hole mobility and charge transfer efficiency, WS-HTMs achieved good results.
JOURNAL OF POWER SOURCES
(2021)
Article
Polymer Science
Jiangbo Lv, Yun Luo, Hang Xiao, Bo Liang, Li Chen, Xian He, Ke Zeng, Gang Yang
Summary: The curing behavior of addition curing polymer CN-PcP, containing [2.2]paracyclophane and phthalonitrile, was studied. Results showed that the carbon radical from [2.2]paracyclophane at high temperature could effectively promote the curing reaction of phthalonitrile, resulting in a cured resin with high glass transition temperature and outstanding thermal properties. Thermogravimetric analysis (TGA) and dynamic mechanical analysis (DMA) were performed to evaluate the thermal properties of the cured resin.
Article
Chemistry, Multidisciplinary
Jun Pu, Lei Chen, Rui-Rui Wu, Peng Ye, Huan-Le Li, Shuang Wang, Zhen-Yuan Xu, Shao-Jie Lou, Dan-Qian Xu
Summary: This paper reports the palladium-catalysed mono-selective C-H arylation of [2.2]paracyclophane (PCP) with diverse aryl iodides in the absence of pendant directing groups, providing a straightforward and modular access to C4-arylated [2.2]paracyclophanes. Furthermore, a new PCP-containing biaryl monophosphine complex can be readily obtained through further derivation of the arylated product.
CHEMICAL COMMUNICATIONS
(2023)
Article
Chemistry, Multidisciplinary
Campbell F. R. Mackenzie, Lucie Delforce, D. Rota Martir, David B. Cordes, Alexandra M. Z. Slawin, Eli Zysman-Colman
Summary: A 1D coordination polymer consisting of silver(I) ions bound to a [2.2]paracyclophane scaffold functionalized with two 4-pyridyl units has been synthesized and characterized. The structure of the polymer reveals two different silver coordination motifs that alternate along the 1D coordination polymer, exhibiting strong blue and sky-blue fluorescence in solution and in the crystalline solid state.
FRONTIERS IN CHEMISTRY
(2021)
Review
Biochemistry & Molecular Biology
Wenjing Liu, Huabin Li, Yanmin Huo, Qingxia Yao, Wenzeng Duan
Summary: In recent years, the [2.2]paracyclophane (PCP) ring has attracted extensive attention due to its features of providing chirality and steric hindrance, which improves the fluorescence properties of dyes. This review summarizes and promotes the application of PCP in fluorescent dye design, fluorescence detection, and CPL modulation, with a hope to enhance the understanding and improvement of fluorescent dye design.
Article
Chemistry, Multidisciplinary
Ksenia Reznikova, Chunwei Hsu, Werner M. Schosser, Almudena Gallego, Katawoura Beltako, Fabian Pauly, Herre S. J. van der Zant, Marcel Mayor
Summary: The correlation between substitution pattern, conductance, and mechanosensitivity in [2.2]paracyclophane (PCP)-based molecular wires was investigated in a mechanically controlled break junction experiment. It was found that para-phenyl-coupled anchoring in the PCP core leads to large variations in conductance values with changes in electrode separation, while this mechanosensitivity is absent for the meta-PCP core. The experimental findings were interpreted in terms of quantum interference effects between molecular frontier orbitals.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2021)
Article
Chemistry, Physical
Mihail Lucian Birsa, Henning Hopf, Peter G. Jones, Laura Gabriela Sarbu, Lucian Gabriel Bahrin
Summary: Several new di- and tetracarboxylic [2.2]paracyclophane derivatives were synthesized through Suzuki coupling reactions. One of the products, pp-bis(4-carboxyphenyl)[2.2]paracyclophane (12), reacted with zinc nitrate to form a 2D coordination polymer with zinc-carboxylate paddlewheel clusters linked by cyclophane cores. The zinc center exhibited a five-coordinate square-pyramidal geometry.
Article
Chemistry, Organic
Shiru Yuan, Chen Liao, Wen-Hua Zheng
Summary: In this study, planar chiral [2.2]paracyclophane-based isothiourea catalysts were synthesized in a few simple steps with high yields. These catalysts showed highly efficient catalytic enantioselective fluorination of carboxylic acids, providing a broad range of optically active alpha-fluoroesters in high yield and excellent enantioselectivity.
Article
Polymer Science
Jiangbo Lv, Hang Xiao, Xian He, Zhengzhu Zhu, Menghao Chen, Wenjie Yang, Jianghuai Hu, Ke Zeng, Gang Yang
Summary: A new functionalized cyclophane derivative, DCI-PcP, has been designed and prepared, showing excellent thermal properties and processability.
Article
Chemistry, Organic
Dan Xu, Wen-Hua Zheng
Summary: Three pairs of planar chiral heteroarenes were synthesized from optically pure 4-amino[2.2]paracyclophane using palladium-catalyzed Buchwald-Hartwig coupling and hypervalent iodine-mediated oxidative cyclization. Among them, one enantiomer of planar chiral azahelicene was found to exhibit significantly stronger circularly polarized luminescence activity compared to the other planar chiral heteroarenes.
Article
Chemistry, Multidisciplinary
Kentaro Tanaka, Ryo Inoue, Yasuhiro Morisaki
Summary: By utilizing enantiopure building blocks, optically active cyclic dimers, trimers, and tetramers were prepared, showing clear Cotton effects and corresponding CPL signs. While the cyclic dimer did not emit CPL, the cyclic trimer and tetramer exhibited intense CPL emissions with a relatively high dissymmetry factor. Their optical and chiroptical properties were reproduced by time-dependent density functional theory calculations.
CHEMISTRY-AN ASIAN JOURNAL
(2022)
Article
Polymer Science
Chin-Yang Yu, Shih-Hao Wen, Sheng-Hao Yu, Chao-Chi Wang
JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY
(2018)
Article
Chemistry, Multidisciplinary
Suyong Shin, Ming-Long Gu, Chin-Yang Yu, Jongseol Jeon, Eunji Lee, Tae-Lim Choi
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2018)
Article
Chemistry, Multidisciplinary
Benjamin John Lidster, Shuzo Hirata, Shoki Matsuda, Takuya Yamamoto, Venukrishnan Komanduri, Dharam Raj Kumar, Yasuyuki Tezuka, Martin Vacha, Michael L. Turner
Article
Chemistry, Multidisciplinary
Chin-Yang Yu, Chia-Chieh Hsu, Hsi-Chen Weng
Article
Chemistry, Multidisciplinary
Chin-Yang Yu, Yu-Chun Lai
Article
Polymer Science
Chin-Yang Yu, Yu-Chun Lai
MACROMOLECULAR CHEMISTRY AND PHYSICS
(2018)
Article
Polymer Science
Yu-Wei Tu, Chao-Chi Wang, Alis Shano Godana, Chin-Yang Yu
EUROPEAN POLYMER JOURNAL
(2019)
Article
Polymer Science
Chao-Chi Wang, Chin-Yang Yu
Article
Polymer Science
Alis Shano Godana, Chin-Yang Yu
Article
Polymer Science
Ching-Ju Liu, Chao-Chi Wang, Dong-Lin Kuo, Chin-Yang Yu
Article
Chemistry, Multidisciplinary
Tsegaye Belege Atisme, Chin-Yang Yu, Eric Nestor Tseng, Yi-Che Chen, Pei-Kai Hsu, Shih-Yun Chen
Article
Polymer Science
Hsien-Tang Chiu, Chin-Yang Yu, Chang-Min Huang, Bang-Shuan Lin
JOURNAL OF APPLIED POLYMER SCIENCE
(2020)
Article
Polymer Science
Chia-Jung Lin, Yi-Hao Lin, Tai-Chin Chiang, Chin-Yang Yu
Summary: Well-defined norbornene-based homopolymers and block copolymers with low polydispersity index and close to theoretical molecular weight were synthesized using the third-generation Grubbs' initiator. These polymers exhibit aggregation-induced emission characteristics and high emission in solid and aggregate states. They show strong sensing ability for aniline in the aggregated state with a detection limit of 5 x 10-6 M.
Article
Polymer Science
Van Hoang-Khang Phan, Yi-Hsin Tai, Tai-Chin Chiang, Chin-Yang Yu
Summary: This article focuses on the synthesis and properties of random copolymers poly(l-lactide-r-glycolide) and block copolymers poly(l-lactide-b-glycolide). The results show that block copolymers have better thermal stability and crystallinity compared to random copolymers, and also exhibit higher hydrophilicity.
JOURNAL OF APPLIED POLYMER SCIENCE
(2023)
Article
Polymer Science
Venukrishnan Komanduri, Dharam R. Kumar, Daniel J. Tate, Raymundo Marcial-Hernandez, Benjamin J. Lidster, Michael L. Turner
Article
Chemistry, Organic
Faiza Diaba, Gisela Trenchs
Summary: The first violet light-mediated synthesis of gamma- and delta-lactams from N-alkenyl trichloroacetamides is reported in this paper. The reactions are conducted in tetrahydrofuran or 2-methyltetrahydrofuran as the sole solvent without catalysts or additives, under non-anhydrous conditions in an air atmosphere where the solvent serves as the radical initiator.
ORGANIC & BIOMOLECULAR CHEMISTRY
(2024)
Article
Chemistry, Organic
Feroze Hussain, Sajjad Ahmed, Ashiq Hussain Padder, Qazi Naveed Ahmed
Summary: This study reports a novel and efficient one-pot synthesis method for mixed phosphorotrithioates, which does not require supplementary additives and shows broad applicability.
ORGANIC & BIOMOLECULAR CHEMISTRY
(2024)
Article
Chemistry, Organic
Hyunjin Oh, Ikyon Kim
Summary: A new 1,2,4-triazole-pyrrolo[1,2-a]pyrazine hybrid system, 6-acylpyrrolo[1,2-a][1,2,4]triazolo[5,1-c]pyrazine, was synthesized using a catalyst-free method. This method involved sequential exposure of pyrrole-2-carbonitrile-derived substrates to DMF-DMA and acyl hydrazide, resulting in the formation of acylated pyrazine and 1,2,4-triazole rings, enabling the installation of various substituents at specific positions on the core skeleton.
ORGANIC & BIOMOLECULAR CHEMISTRY
(2024)
Article
Chemistry, Organic
Ming Yan, Si-fan Wang, Yong-po Zhang, Jin-zhong Zhao, Zhuo Tang, Guang-xun Li
Summary: Here we developed an efficient photocatalytic approach for the convenient preparation of sulfinamides. The reaction allows for the gram-scale preparation of sulfinamides and the one-pot synthesis of various sulfonyl amides.
ORGANIC & BIOMOLECULAR CHEMISTRY
(2024)
Article
Chemistry, Organic
Farzaneh Bandehali-Naeini, Zahra Tanbakouchian, Noushin Farajinia-Lehi, Nicolas Mayer, Morteza Shiri, Martin Breugst
Summary: Two tandem catalytic systems were developed for the synthesis of novel 3,4-disubstituted maleimides using the same Ugi adducts. Different maleimide structures can be synthesized using either Pd or Cu catalysis.
ORGANIC & BIOMOLECULAR CHEMISTRY
(2024)
Article
Chemistry, Organic
Tanya Raghava, Anjan Chattopadhyay, Subhadeep Banerjee, Nivedita Sarkar
Summary: Amine substitution of two ortho fluorine atoms of tetrafluoroterephthalonitrile through SNAr chemistry is easily achievable. But further fluorine substitution is only possible under forcing conditions, yielding valuable fluorophores for bioimaging.
ORGANIC & BIOMOLECULAR CHEMISTRY
(2024)
Review
Chemistry, Organic
Anju Chadha, Santosh Kumar Padhi, Selvaraj Stella, Sowmyalakshmi Venkataraman, Thangavelu Saravanan
Summary: Alcohol dehydrogenases are enzymes that use cofactors for oxidation or reduction reactions of alcohols or carbonyl compounds. They are utilized in green chemistry and have applications in the production of pharmaceuticals. Recombinant enzymes have solved the challenge of producing purified enzymes in large quantities. Engineered alcohol dehydrogenases have been used in asymmetric synthesis in industry. Various methods have been established for regenerating expensive cofactors to make the enzymatic process more efficient and economically viable.
ORGANIC & BIOMOLECULAR CHEMISTRY
(2024)