Article
Chemistry, Multidisciplinary
Matthew R. Crawley, Daoyang Zhang, Amanda N. Oldacre, Christine M. Beavers, Alan E. Friedman, Timothy R. Cook
Summary: This study focused on assembling eight cofacial porphyrin prisms using MTPyP and functionalized ruthenium-based molecular clips, demonstrating significant improvement in catalytic rate constant k(s) and selectivity for the 4e(-)/4H* reduction of O-2 to H2O. The role of steric bulk of the clip in the structural dynamics of these prisms, which modulates the ORR reactivity with respect to selectivity and kinetics, was highlighted.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2021)
Article
Chemistry, Multidisciplinary
Christoph Schissler, Erik K. Schneider, Benjamin Felker, Patrick Weis, Martin Nieger, Manfred M. Kappes, Stefan Braese
Summary: A practical synthesis method for homo- and heterobimetallic porphyrin complexes was presented, leading to a notable increase in yield for known compounds and the discovery of new structures. Various techniques were used to investigate the isolated species, revealing the influence of molecular structure on UV/Vis absorption bands.
CHEMISTRY-A EUROPEAN JOURNAL
(2021)
Article
Chemistry, Inorganic & Nuclear
Bapan Saha, Dolly Chandel, Sankar Prasad Rath
Summary: The rationalization for chirality transfer mechanism in supramolecular host-guest assemblies has been reported for the first time. The cyclic dimer displays a large bisignate CD couplet, while the monomeric complexes exhibit negligible CD intensity. Crystallographic characterizations demonstrate that the strong intermolecular H bonding in cyclic dimers is responsible for their stability over the linear chain.
INORGANIC CHEMISTRY
(2022)
Article
Chemistry, Multidisciplinary
Hang Yin, Roselyne Rosas, Stephane Viel, Michel Giorgi, Valerie Monnier, Laurence Charles, Didier Siri, Didier Gigmes, Youssef Nassar, Floris Chevallier, Christophe Bucher, Ruibing Wang, Anthony Kermagoret, David Bardelang
Summary: This article describes the structural tunability of cucurbit[8]uril (CB[8]) host/guest complexes and their responsiveness to various stimuli in water. A series of versatile 3:2 host/guest complexes were prepared by combining CB[8] with symmetric, linear diviologens, exhibiting remarkable dynamic properties and external ring translocation.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Chemistry, Medicinal
Yanjun Wang, Xiangchao Shi, Hongbao Fang, Zhong Han, Hao Yuan, Zhenzhu Zhu, Lei Dong, Zijian Guo, Xiaoyong Wang
Summary: PtPAN is a platinum-based photosensitizer that is unreactive to DNA in the dark but highly cytotoxic upon near-infrared irradiation for oxygen-independent photodynamic therapy. With its two-photon excitation property, PtPAN may be suitable for the treatment of deep solid tumors.
JOURNAL OF MEDICINAL CHEMISTRY
(2022)
Article
Chemistry, Multidisciplinary
Kai Wu, Xuyang Zhang, Liang-Liang Wu, Jie-Sheng Huang, Chi-Ming Che
Summary: In this study, we reported a modular approach to the synthesis of trifluoromethyl-bearing 5-membered rings through direct rhodium-catalyzed carbene insertion into C(sp(3))-H bonds. The reaction showed good control over site- and stereochemistry, and was applicable for the synthesis of chiral CF3 analogues. Stoichiometric reactions of ruthenium carbene complexes provided evidence for the involvement of metal carbene species in the catalytic cycle. DFT calculations explained the origin of selectivity in the benzylic C-H insertion reactions.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Chemistry, Organic
Shutao Wang, Siyu Wang, Shaoli Song, Qiansong Gao, Chunxi Wen, Zhuoqi Zhang, Lianyou Zheng, Jinbao Xiang
Summary: This method describes a one-pot synthetic approach for the construction of indole/pyrrole-fused 1,4-diazepanone scaffolds, utilizing readily available starting materials and exhibiting good stereoselectivity. It is valuable for the gram-scale synthesis of highly substituted fused heterocycles containing the 1,4-diazepanone moiety.
JOURNAL OF ORGANIC CHEMISTRY
(2021)
Article
Chemistry, Multidisciplinary
Ryosuke Kobayashi, Takashi Yumura, Hiroaki Imoto, Kensuke Naka
Summary: Complex salts of cationic Au(i) and anionic Cu(i) were synthesized using different ligands, resulting in crystals with distinct phosphorescence emission colors that can be interconverted by exposure to solvent vapor.
CHEMICAL COMMUNICATIONS
(2021)
Article
Chemistry, Physical
Govardhana Babu Bodedla, Wai-Yeung Wong, Xunjin Zhu
Summary: ZnDC(p-NI)PP is an efficient and effective photocatalytic hydrogen evolution system with significantly improved performance compared to other common PS. This is achieved through mechanisms of intramolecular energy transfer and electrostatic force promoting rapid electron transfer.
JOURNAL OF MATERIALS CHEMISTRY A
(2021)
Article
Chemistry, Multidisciplinary
Bryan C. Paulus, Karl C. Nielsen, Christopher R. Tichnell, Monica C. Carey, James K. McCusker
Summary: The development of chromophores based on earth-abundant transition metals with charge-transfer excited states has led to significant research. A new heteroleptic compositional motif was explored to combine strong ligand field and chemical tunability into a single compound. Spectroscopic measurements and ultrafast electronic absorption measurements revealed differences in excited state lifetimes and kinetics for the newly synthesized compound, highlighting the importance for designing compounds with specific optical properties.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2021)
Article
Materials Science, Multidisciplinary
Tobias Burger, Christian Winkler, Irene Dalfen, Christian Slugovc, Sergey M. Borisov
Summary: The optical oxygen sensing capabilities of porphyrin-based metal-organic frameworks were studied, revealing high oxygen permeability and bimolecular quenching constants. The frameworks showed exceptional gas transport, large pore sizes, and effective isolation of the sensing indicators. These materials have potential applications in detecting oxygen in trace and ultra-trace ranges.
JOURNAL OF MATERIALS CHEMISTRY C
(2021)
Article
Chemistry, Inorganic & Nuclear
Harikrishnan Jayaprakash
Summary: A series of Mn(i) catalysts with P'(O)N(H)P pincer ligands have been explored for the asymmetric transfer hydrogenation of aryl-alkyl ketones, leading to good to high enantioselectivities compared to other Mn-based catalysts for such reactions. The chiral backbone and phosphine moieties of P'(O)N(H)P make it an alternative ligand framework to the well-known PNP-type pincers.
DALTON TRANSACTIONS
(2021)
Article
Chemistry, Inorganic & Nuclear
Christoph Hubbert, Martin C. Dietl, David Zahner, Frank Rominger, Matthias Rudolph, A. Stephen K. Hashmi
Summary: This study presents a straightforward strategy for the synthesis of pNHC-metal complexes using readily available imine precursors. Unlike the common approach based on isonitrile, this method also allows the synthesis of pNHC complexes of other catalytically relevant metals.
Article
Chemistry, Multidisciplinary
Shuyi An, Zhifen Guo, Xin Liu, Yan Che, Hongzhu Xing, Peng Chen
Summary: This study reports the synthesis and characterization of a series of novel lanthanide coordination polymer (Ln-CP) photocatalysts with wide-range visible-light adsorption and excellent chemical stability, which show excellent selectivity and yield for the oxidation of amines and thiols. Mechanism studies indicate these Ln-CPs are highly efficient to activate molecular oxygen into highly reactive oxygen species. The work provides an in-depth understanding of photoinduced oxygen activation based on a CP photocatalyst, showing the great potential of photoactive CPs for green synthesis.
NEW JOURNAL OF CHEMISTRY
(2021)
Article
Materials Science, Multidisciplinary
Florian Malotke, Matthias Spengler, Lukas Pschyklenk, Marco Saccone, Peter Kaul, Michael Giese
Summary: This article presents a supramolecular approach for photonic materials based on hydrogen-bonded cholesteric liquid crystals, offering a simple route to tailor liquid crystalline materials with specific thermal and photonic properties. Initial studies indicate broad application potential of liquid crystalline thin films in chemosensing and thermosensing, with plans to expand the scope of analytes and sensing in aqueous media.
ADVANCED PHOTONICS RESEARCH
(2022)
Article
Chemistry, Analytical
Isaac N. Larkin, Viswanadham Garimella, Gokay Yamankurt, Alexander W. Scott, Hang Xing, Chad A. Mirkin
ANALYTICAL CHEMISTRY
(2020)
Review
Chemistry, Multidisciplinary
Guoqiang Liu, Sarah Hurst Petrosko, Zijian Zheng, Chad A. Mirkin
Article
Chemistry, Physical
Furui Zhang, Xiaobing Hu, Eric Wayne Roth, Yonghwi Kim, SonBinh T. Nguyen
CHEMISTRY OF MATERIALS
(2020)
Article
Chemistry, Multidisciplinary
Stephanie Swan, Franklin O. Egemole, SonBinh T. Nguyen, Jun-Hyun Kim
Article
Immunology
Lei Qin, Shuya Wang, Donye Dominguez, Alan Long, Siqi Chen, Jie Fan, Jihae Ahn, Kacper Skakuj, Ziyin Huang, Andrew Lee, Chad Mirkin, Bin Zhang
FRONTIERS IN IMMUNOLOGY
(2020)
Article
Chemistry, Multidisciplinary
Lin Sun, Haixin Lin, Yuanwei Li, Wenjie Zhou, Jingshan S. Du, Chad A. Mirkin
ADVANCED MATERIALS
(2020)
Article
Chemistry, Multidisciplinary
Bo Shen, Liliang Huang, Jiahong Shen, Lingyuan Meng, Edward J. Kluender, Chris Wolverton, Bozhi Tian, Chad A. Mirkin
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2020)
Article
Chemistry, Multidisciplinary
Seokhyoung Kim, Cindy Y. Zheng, George C. Schatz, Koray Aydin, Kyoung-Ho Kim, Chad A. Mirkin
Article
Multidisciplinary Sciences
Wenjie Zhou, Zizhuo Liu, Ziyin Huang, Haixin Lin, Devleena Samanta, Qing-Yuan Lin, Koray Aydin, Chad A. Mirkin
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
(2020)
Article
Chemistry, Multidisciplinary
Zachary J. Urbach, Sarah S. Park, Steven L. Weigand, James E. Rix, Byeongdu Lee, Chad A. Mirkin
Summary: The study demonstrates that in a magnetic field, cubic Fe3O4 nanoparticles functionalized with DNA can exhibit unexpected crystallographic alignment of the entire superlattice, expanding the potential of crystal engineering with DNA through physical and chemical control.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2021)
Article
Chemistry, Multidisciplinary
Ho Fung Cheng, Shunzhi Wang, Chad A. Mirkin
Summary: Recent studies have shown that PAEs can behave as electron equivalents at small size and low DNA grafting density, however, the polydispersity in the number of DNA strands on the surfaces of these NPs limits the structural uniformity and tailorability of NP-based EEs. By assembling molecularly precise EEs with complementary NP-based PAEs, three distinct metallic phases can be formed, demonstrating that molecular-based EEs can influence specific phase formation.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2021)
Editorial Material
Chemistry, Multidisciplinary
Jingshan S. Du, Wenjie Zhou, Sara M. Rupich, Chad A. Mirkin
Summary: The structure of MTPs is determined by specific crystallographic features, and their formation pathways include growth from multiply twinned seeds or stepwise formation of new twin boundaries on single-crystalline seeds. Recent studies have utilized in situ transmission electron microscopy to provide real-time evidence for both pathways, which will aid in the design of robust MTP syntheses. Further research on the structural evolution and energetics of nanoparticles is needed for a complete understanding of MTP formation pathways.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2021)
Article
Chemistry, Inorganic & Nuclear
Ho Fung Cheng, McKinley K. Paul, Andrea D'Aquino, Charlotte L. Stern, Chad A. Mirkin
Summary: The study reveals that in a multiphasic solvent environment, dynamic weak-link approach (WLA) complexes demonstrated the ability to shuttle between aqueous and organic phases and modulate their denticity as they partition into different phases. This highly reconfigurable property of WLA complexes can be utilized to design biphasic reaction networks or chemical separations driven by straightforward salt metathesis reactions.
INORGANIC CHEMISTRY
(2021)
Article
Chemistry, Multidisciplinary
Sasha B. Ebrahimi, Devleena Samanta, Benjamin E. Partridge, Caroline D. Kusmierz, Ho Fung Cheng, Arabela A. Grigorescu, Jorge L. Chavez, Peter A. Mirau, Chad A. Mirkin
Summary: Researchers have developed a strategy based on forced intercalation (FIT) to transduce subtle changes in aptamer structures into fluorescent readouts, expanding the scope of aptamer recognition for detecting steroids. This technology offers advantages such as rapid readout, simple instrumentation, and low sample volumes for studying steroids in clinical samples.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2021)
Article
Chemistry, Multidisciplinary
Cornelius O. Audu, David Chen, Chung-Wei Kung, Randall Q. Snurr, SonBinh T. Nguyen, Omar K. Farha, Joseph T. Hupp
Summary: The study found that the transport dynamics in ZIF-8 are mainly governed by guest diffusion through the metal-organic framework rather than entry into the film. Additionally, the increase in carbon atoms leads to a halving of the transport diffusivity of alkanes, and an odd-even effect was observed where alkanes with even numbers of carbons diffuse more rapidly.
