Article
Chemistry, Multidisciplinary
Kazuhiro Yuhara, Kazuo Tanaka
Summary: This study reports the luminochromic behaviors of o-carborane-modified anthracene derivatives regarding mechanochromic luminescence (MCL). Crystal polymorphs of bis-o-carborane-substituted anthracene showed dual-emission properties in the solid state, characterized by excimer and charge transfer (CT) emission bands. Compound 1a exhibited bathochromic MCL due to a transition from dual emission to CT emission, while compound 2 displayed hypsochromic MCL resulting from a transition from CT to excimer emission. Additionally, ground 1a showed self-recovery of its luminescent color when left at room temperature.
CHEMISTRY-A EUROPEAN JOURNAL
(2023)
Article
Chemistry, Multidisciplinary
Jingjing Tong, Yue Cao, Yi-Wen Zhang, Peng Wang, Penglong Wang, Xiang-Ji Liao, Weigang Zhang, Yi Wang, You-Xuan Zheng, Jun-Jie Zhu, Yi Pan
Summary: By adjusting the substituent positions, two chiral luminescent molecules, Cb1 and Cb2, with different properties were obtained. Cb1 showed a deep blue emission peak in n-pentane, while Cb2 exhibited good AIECL property and excellent ECL stability.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2022)
Review
Polymer Science
Ilya E. Nifant'ev, Pavel D. Komarov, Oksana D. Kostomarova, Nikolay A. Kolosov, Pavel V. Ivchenko
Summary: Modern industry of advanced polyolefins extensively uses Group 4 metallocene and post-metallocene catalysts. High-throughput polyolefin technologies demand the use of heterogeneous catalysts with specific characteristics. This review discusses the use of low-cost activating supports for Group 4 metal pre-catalysts, providing comprehensive information on these supports and their potential applications in the polyolefin industry.
Article
Chemistry, Multidisciplinary
Junki Ochi, Kazuhiro Yuhara, Kazuo Tanaka, Yoshiki Chujo
Summary: Researchers demonstrated solid-state dual-emissive o-carborane derivatives, in which the dual-emission intensity ratios were changed by regulating intra-molecular interactions, and the overall photoluminescence spectra were estimated using the binding energy of intra-molecular interactions.
CHEMISTRY-A EUROPEAN JOURNAL
(2022)
Article
Chemistry, Multidisciplinary
Junki Ochi, Kazuo Tanaka, Yoshiki Chujo
Summary: The unique solid-state excimer emission of three types of acridine-tethered o-carboranes with variable degrees of methylation was reported. The emitted light colors were drastically changed by the steric effect of the methyl groups, with a strong correlation found between the pi-overlapping and excimer character. Variable-temperature PL measurements revealed that these PL species should be in thermal equilibrium at room temperature.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Chemistry, Multidisciplinary
Arijit Jana, Madhuri Jash, Ajay Kumar Poonia, Ganesan Paramasivam, Md Rabiul Islam, Papri Chakraborty, Sudhadevi Antharjanam, Jan Machacek, Sundargopal Ghosh, Kumaran Nair Valsala Devi Adarsh, Tomas Base, Thalappil Pradeep
Summary: A silver nanocluster Ag-42 protected with both carboranes and triphenylphosphine has been successfully synthesized, which exhibits unique physicochemical properties. The study also reveals a light-activated transformation of Ag-42 to Ag-14 through a series of intermediate cluster formations.
Article
Chemistry, Multidisciplinary
G. Lesly Jimenez, Binita Shrestha, Tyron Porter, Bartlomiej Starzyk, Magdalena Lesniak, Marta Kuwik, Marcin Kochanowicz, Magdalena Szumera, R. Lisiecki, D. Dorosz
Summary: Up-conversion nanoparticles have attracted attention for their ability to convert low energy light into high-energy light, but their low efficiency poses limitations. By doping fluoroindate glasses with Yb3+ and Er3+, efficient energy transfer and improved biocompatibility can be achieved, making them suitable for biomedical applications.
Article
Chemistry, Physical
Martin Lamac, David Dunlop, Kamil Lang, Pavel Kubat
Summary: This study found that cationic zirconium and hafnium metallocenes can serve as efficient singlet oxygen photosensitizers, showing high production rates of O-2((1)Delta(g)). On the other hand, neutral zirconium complexes and some cationic titanium derivatives exhibited lower efficiency in generating O-2((1)Delta(g)).
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY
(2022)
Article
Chemistry, Inorganic & Nuclear
Donghong Luo, Yatong Fu, Ju-You Lu
Summary: An efficient Pd-catalyzed oxidative dehydrogenative cross coupling method has been developed for connecting B-H/B-H bonds of two pyridyl o-carboranes, leading to the synthesis of B(3)-B(6') heterocoupled and homocoupled biscarboranes with a wide substrate scope at room temperature.
INORGANIC CHEMISTRY
(2022)
Review
Chemistry, Multidisciplinary
Lisa Wirtz, Andre Schafer
Summary: Metallocenes with interlinked cyclopentadienide ligands, also known as ansa-metallocenes or metallocenophanes, can have drastically different properties than their unbridged parent compounds. This concept is not limited to transition metals, but can also be applied to many main-group elements. This review focuses on recent advances in synthesis, structure, and properties of metallocenophanes based on group 2, group 13, group 14, and group 15 main-group elements.
CHEMISTRY-A EUROPEAN JOURNAL
(2021)
Article
Polymer Science
Lihua Zhao, Tianhao Li, Bijie Wang, Ke Chen, Xiao Hu, Ming Liu, Liu He, Qing Huang, Yujie Song
Summary: Poly(siloxane-carborane)s are polymeric materials with good thermal stability and anti-oxidation properties, which can be used to protect carbon fiber and carbon foam from damage in harsh environments.
Article
Chemistry, Multidisciplinary
Hanqiang Wang, Jie Zhang, Jingting Yang, Zuowei Xie
Summary: An efficient synthesis of an acid-free neutral oxoborane carboranyl-B(carbene)=O has been developed, showing high stability and unique molecular structure attributed to kinetic and thermodynamic stabilization. Crystallographic analyses confirm the presence of the shortest B=O double bond reported to date, with reactivity also examined.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2021)
Review
Chemistry, Inorganic & Nuclear
Igor B. Sivaev, Marina Yu Stogniy, Vladimir Bregadze
Summary: This review summarizes the synthesis and structure of transition metal complexes with phosphine ligands derived from icosahedral dicarbaboranes C2B10H12, monocarbaboranes [CB9H10](-), [CB11H12](-), and various metallacarboranes. The possibilities of practical application of such complexes are discussed.
COORDINATION CHEMISTRY REVIEWS
(2021)
Review
Polymer Science
Ye Sha, Hao Zhang, Zhou Zhou, Zhenyang Luo
Summary: This review focuses on metallocenes as emerging stress-responsive building blocks for materials in the field of polymers, presenting their research techniques, impact factors, and functional applications. Fresh viewpoints and mechanistic insights are provided to stimulate further studies.
Article
Chemistry, Inorganic & Nuclear
Artiom Gaina-Gardiuta, Alexandru Lupan, R. Bruce King
Summary: Density functional theory studies suggest that high-spin triplet and quintet structures are energetically favorable for dimanganaboranes of first-row manganese, while flattened singlet structures are preferred for dimetallaboranes of third-row rhenium. The different peference might be attributed to the ligand field splittings in complexes of manganese and rhenium.
INORGANIC CHEMISTRY
(2022)
Article
Chemistry, Inorganic & Nuclear
Sang Woo Kwak, Hyomin Jin, Ji Hye Lee, Hyonseok Hwang, Min Kim, Youngjo Kim, Yongseog Chung, Kang Mun Lee, Myung Hwan Park
INORGANIC CHEMISTRY
(2019)
Article
Chemistry, Inorganic & Nuclear
Yoseph Kim, Seol Ryu, Woolee Cho, Min Kim, Myung Hwan Park, Youngjo Kim
INORGANIC CHEMISTRY
(2019)
Article
Biochemistry & Molecular Biology
Seonah Kim, Hyunhee So, Ji Hye Lee, Hyonseok Hwang, Hyoshik Kwon, Myung Hwan Park, Kang Mun Lee
Article
Chemistry, Multidisciplinary
Seonah Kim, Ji Hye Lee, Hyunhee So, Jiyeon Ryu, Junseong Lee, Hyonseok Hwang, Youngjo Kim, Myung Hwan Park, Kang Mun Lee
CHEMISTRY-A EUROPEAN JOURNAL
(2020)
Article
Chemistry, Organic
Kwangho Yoo, Jooyeon Lee, Myung Hwan Park, Youngjo Kim, Hyun Jin Kim, Min Kim
JOURNAL OF ORGANIC CHEMISTRY
(2020)
Article
Chemistry, Multidisciplinary
Dopil Kim, Hyeonbin Ha, Youngik Kim, Younghu Son, Jiyoon Choi, Myung Hwan Park, Youngjo Kim, Minyoung Yoon, Hyungjun Kim, Dongwook Kim, Min Kim
CRYSTAL GROWTH & DESIGN
(2020)
Review
Chemistry, Physical
Ha-Eun Lee, Dopil Kim, Ahrom You, Myung Hwan Park, Min Kim, Cheoljae Kim
Article
Chemistry, Multidisciplinary
Won Hee Woo, Seok Ho Lee, Sang Woo Kwak, Min Kim, Kang Mun Lee, Myung Hwan Park, Youngjo Kim
BULLETIN OF THE KOREAN CHEMICAL SOCIETY
(2020)
Article
Biochemistry & Molecular Biology
Sang Woo Kwak, Ju Hyun Hong, Sang Hoon Lee, Min Kim, Yongseog Chung, Kang Mun Lee, Youngjo Kim, Myung Hwan Park
Summary: A novel class of quinolinol-based dimeric indium complexes were synthesized and characterized, showing typical low-energy absorption bands and emission spectra with gradual redshifts as solvent polarity increased. Substituents at the C5 position of the quinoline groups significantly affected the emission bands.
Article
Chemistry, Inorganic & Nuclear
Sang Woo Kwak, Hanif Mubarok, Ji Hye Lee, Hyonseok Hwang, Kang Mun Lee, Min Hyung Lee, Myung Hwan Park
Summary: This study presents a method for designing highly emissive salen-indium complexes, which were synthesized with high yields through a one-pot synthetic pathway. The compounds exhibited narrow-bandwidth red emission with high photoluminescence quantum yields in toluene. Theoretical studies suggest that electronic interactions between the 4-amino donor and the electron-accepting bridge enhance the salen-centered electronic transitions in these complexes.
INORGANIC CHEMISTRY FRONTIERS
(2022)
Article
Chemistry, Multidisciplinary
Hanif Mubarok, Sang Woo Kwak, Ji Hye Lee, Hyonseok Hwang, Kang Mun Lee, Youngjo Kim, Min Hyung Lee, Myung Hwan Park
Summary: A series of 4-NEt2-appended salen-indium complexes with different electronic effects were synthesized. The solid-state structure of one complex was determined, showing a square-pyramidal structure. The absorption and emission spectra exhibited bathochromic shifts and narrowing emission peaks with increasing electron-withdrawing ability and electron-accepting property of the bridging units, respectively.
BULLETIN OF THE KOREAN CHEMICAL SOCIETY
(2022)
Article
Chemistry, Inorganic & Nuclear
Yoseph Kim, Jaehoon Kim, Ji Hye Lee, Hyeongkwon Moon, Ga Hee Noh, Hyonseok Hwang, Junseong Lee, Jun Hui Park, Youngjo Kim, Myung Hwan Park
Summary: In this study, we investigated 4-carbazole (CBZ)-appended salen-based indium complexes, CBZIn1 and CBZIn2. Our findings revealed that CBZIn2 exhibited significantly higher photoluminescence quantum efficiency in toluene compared to CBZIn1. The high efficiency of CBZIn2 can be attributed to the intramolecular charge-transfer transition between the moderately twisted CBZ and the 1,2-dicyanoethylene-bridged salen, which exhibits a strong electron-accepting ability. These results were supported by theoretical calculations.
DALTON TRANSACTIONS
(2023)
Article
Chemistry, Inorganic & Nuclear
Seonah Kim, Ji Hye Lee, Hyunhee So, Mingi Kim, Min Sik Mun, Hyonseok Hwang, Myung Hwan Park, Kang Mun Lee
INORGANIC CHEMISTRY FRONTIERS
(2020)
Article
Chemistry, Multidisciplinary
Sangdon Choi, Ha-Eun Lee, Chan Hee Ryu, Jooyeon Lee, Jihyun Lee, Minyoung Yoon, Youngjo Kim, Myung Hwan Park, Kang Mun Lee, Min Kim
CHEMICAL COMMUNICATIONS
(2019)
Article
Chemistry, Inorganic & Nuclear
Hyomin Jin, Hye Jin Bae, Seonah Kim, Ji Hye Lee, Hyonseok Hwang, Myung Hwan Park, Kang Mun Lee
DALTON TRANSACTIONS
(2019)
