Article
Chemistry, Inorganic & Nuclear
Mukara Ramathulasamma, Suresh Bommakanti, Samar K. Das
Summary: Three new metal-organic framework (MOF) compounds were synthesized by assembling metal ions (Cu(II) and Co(II)) with H3tci and two different N-donor ligands (btx and biip) under solvothermal conditions. The structure analysis showed that compound 1 is a 1D coordination polymer, compound 2 is a 2D layered structure, and compound 3 is a 3D framework.
Article
Chemistry, Applied
Zhao-Hao Li, Li-Ping Xue, Yue Wu, Qing Wang, Bang-Tun Zhao
Summary: In this work, two Zn(II) coordination polymers constructed from sulfate and viologen-carboxylate ligands have been synthesized and characterized, showing sensitive photochromic properties. Single crystal X-ray analyses reveal different molecular structures, with one featuring a 2D layer structure and the other a 1D chain structure.
Article
Chemistry, Inorganic & Nuclear
Xin-Jie Du, Lin-Lin Zhang, Li-Ting Li, Lei-Yu Zhan, Tian-Ran Li, Jiong-Peng Zhao, Fu-Chen Liu
Summary: Novel 3D metal formate frameworks with rare coordination polymers have been successfully assembled via microwave-assisted synthesis. These frameworks exhibit nonlinear optical activity and piezoelectric properties. Magnetic studies reveal antiferromagnetic coupling and spin canting in one of the complexes.
INORGANIC CHEMISTRY
(2022)
Article
Chemistry, Physical
Qi-Chao Ma, Tian-Cai Yue, Qing-Wei Cao, Ze-Bei Xie, Qing-Wei Dong, Duo-Zhi Wang, Lu-Lu Wang
Summary: In this study, five coordination polymers based on triazole carboxylic acid ligands were synthesized and characterized. The results showed that complexes 1-3 have two-dimensional layered structures, while complexes 4 and 5 have chain structures, and complex 5 further forms a two-dimensional supramolecular structure through hydrogen-bonding interactions. The magnetic properties of complexes 1-4 were investigated and showed antiferromagnetic behavior. Additionally, complex 5 exhibited adsorption performance to Congo red, and detailed studies on adsorption isotherm, kinetics, pH effects, and cycling performance were conducted.
JOURNAL OF MOLECULAR STRUCTURE
(2023)
Article
Chemistry, Inorganic & Nuclear
Wen-Xuan Xie, Chun-Hui Xue, Meng Liu, Kun Zhou, Hui-Hao Gu, Jiu-Yu Ji, Bao-Kuan Chen, Na Liu, Yan-Feng Bi
Summary: Two thiacalix[4]arene-protected silver(I) alkynyl nanoclusters, Ag-9 and Ag-18, were synthesized and characterized. The structural unit of these nanoclusters migrated in different modes under the influence of different coordination ions, resulting in different Ag.Ag distances. Both nanoclusters exhibited good solution stability and their fluorescence responses were influenced by the polarity of the solvent.
DALTON TRANSACTIONS
(2023)
Article
Polymer Science
Pilar Narea, Benjamin Hernandez, Jonathan Cisterna, Alejandro Cardenas, Pilar Amo-Ochoa, Felix Zamora, Gerzon E. Delgado, Jaime Llanos, Ivan Brito
Summary: Two Zn(II) coordination polymers (CPs) were synthesized using n-methylpyridyltriazole carboxylate semi-rigid organic ligands (L1 and L2). The structures of the CPs were found to be influenced by the isomeric positional effect and the presence of a methylene spacer group. The luminescent properties of the CPs were significantly different, with CP 2 showing strong emission at 367 nm while CP 1 had substantially quenched emission.
Article
Chemistry, Inorganic & Nuclear
Pierre Thuery, Jack Harrowfield
Summary: The zwitterionic complex Ni(tpyc)(2) has been utilized along with a variety of polycarboxylates to synthesize a series of mixed ligand, heterometallic compounds under solvo-hydrothermal conditions, resulting in structures with diverse morphologies and topologies, including discrete units as well as polymer formations.
INORGANIC CHEMISTRY
(2022)
Article
Chemistry, Inorganic & Nuclear
Pierre Thuery, Jack Harrowfield
Summary: In this study, a zwitterionic complex Ni(tpyc)(2) was used as a coligand with polycarboxylates to synthesize 14 mixed ligand, heterometallic compounds. These compounds exhibit various dinickelatetrauranacycles, coordination polymers, and nanotubular polymers.
INORGANIC CHEMISTRY
(2022)
Article
Chemistry, Multidisciplinary
Junfeng Zhang, Qing Lei, Lindong Luan, Hongmei Zeng, Guohong Zou, Zhien Lin
Summary: Two N-methylimidazolium containing metal phosphate-oxalates (SCU-40 and SCU-42) were synthesized under solvent-free conditions. SCU-40 has a three-dimensional zeolitic structure with crb topology, while SCU-42 has a layered structure with sql net. Notably, SCU-42 exhibits the highest proton conductivity among all crystalline metal phosphate-oxalates reported so far, reaching 4.2 x 10(-3) S cm(-1) at 85 degrees C under 95% relative humidity.
Article
Chemistry, Multidisciplinary
Lei Wang, Robert J. Papoular, Noah E. Horwitz, Jiaze Xie, Arup Sarkar, Dario Campisi, Norman Zhao, Baorui Cheng, Garrett L. Grocke, Tengzhou Ma, Alexander S. Filatov, Laura Gagliardi, John S. Anderson
Summary: The emergence of conductive 2D and 3D coordination polymers (CPs) and metal-organic frameworks (MOFs) brings new applications opportunities in various fields. However, the synthetic parameters for these electronically complex materials are not well understood. In this study, a new 3D semiconducting CP Fe-5(C6O6)(3) is reported, which is a fusion of 2D Fe-semiquinoid materials and 3D cubic Fe-x(C6O6)(y) materials, achieved by controlling the initial redox-state of the C6O6 linker. This material exhibits high electrical conductivity, broad electronic transitions, promising thermoelectric behavior, and strong antiferromagnetic interactions at room temperature. This study demonstrates that controlling the oxidation states of redox-active components in conducting CPs/MOFs can be a pre-synthetic strategy to finely tune material topologies and properties, in contrast to more commonly encountered post-synthetic modifications.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2022)
Article
Chemistry, Inorganic & Nuclear
Li-Na Zheng, Yang-Tian Yan, Tao Ding, Ning Xue
Summary: Four novel coordination polymers were successfully synthesized using two N-heterocyclic carboxylate bifunctional ligands. Compounds 1, 2, and 4 exhibit 1D loop chain structures, while compound 3 displays a 2D framework. Magnetic studies indicate that compounds 1, 3, and 4 demonstrate antiferromagnetic behavior.
INORGANICA CHIMICA ACTA
(2021)
Article
Chemistry, Multidisciplinary
Jia-Ling Yin, Meng-Ru Yin, Guo-Ping Yong
Summary: Two new coordination polymers and two novel isostructural metal-organic frameworks were synthesized using a new ligand. The dimensional and structural diversities were controlled by adjusting the solvent ratio, and enhanced luminescence emission was observed in certain frameworks.
Article
Chemistry, Multidisciplinary
Mattia Maffeis, Lorenza Draghi, Massimo Cametti
Summary: Novel metallorganic materials were obtained by combing isoquinoline-5-carboxylic acid with Cu(II) ions under different conditions, including two 2D coordination polymers, CP 1 and CP 2, which were characterized by SC-XRD. The ratio of solvents (EtOH:DMF) used in the synthesis had a significant effect on the formation of different species, which differed in coordination at the Cu(II) center due to the denticity of the carboxylate ligands. Two fully characterized 2D coordination polymers formed exclusively depending on the DMF:EtOH solvent mixture are among the novel materials formed by the combination of Cu(II) with the isoquinoline-5-carboxylate ligand described here.
Article
Chemistry, Multidisciplinary
Mehdi Elsayed Moussa, Pavel A. Shelyganov, Michael Seidl, Eugenia Peresypkina, Nele Berg, Ruth M. Gschwind, Gabor Balazs, Jana Schiller, Manfred Scheer
Summary: The reaction of the organometallic diarsene complex with Ag[Al{OC(CF3)(3)}(4)] yielded the Ag-I monomer, which exhibits dynamic behavior in solution and allows the synthesis of organometallic-organic hybrid assemblies upon reaction with N-donor organic molecules. This stepwise pathway was supported by DFT calculations. The reaction with different organic molecules led to the formation of different types of molecular compounds and polymers, showcasing the potential for directed selective synthesis of complex structures.
CHEMISTRY-A EUROPEAN JOURNAL
(2021)
Article
Chemistry, Multidisciplinary
Yu-Shan Ye, Wei-Min Yi, Pei-Lin Zhuang, Ying-Juan Lu, Yan-Can Liang, Shao-Hai Chang
Summary: Two coordination polymers based on Cu(II), 1 and 2, were prepared using the hydrothermal method. Their magnetic properties and preventive effects on periodontitis were studied, revealing the antibacterial mechanism of the compounds.
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS
(2021)
Article
Chemistry, Inorganic & Nuclear
Vasile Lozovan, Victor Ch. Kravtsov, Natalia Costriucova, Anatolii Siminel, Olga Kulikova, Marina S. Fonari
Summary: Cd(II) and Zn(II) coordination polymers based on a dicarboxylic azine chromophore were successfully synthesized and studied using spectroscopic and X-ray diffraction methods. The organic chromophore showed dual emission in the high and low energy regions of the spectrum. The emission properties of the coordination polymers could be tuned and showed excellent sensing of solvated dmso.
JOURNAL OF SOLID STATE CHEMISTRY
(2022)
Article
Chemistry, Multidisciplinary
Daniel Podgornii, Francoise M. Amombo Noa, Jan van Leusen, Christine J. McKenzie, Lars Ohrstrom, Paul Koegerler, Svetlana G. Baca
Summary: A new series of heterometallic wheels were synthesized and characterized. These wheels consist of trinuclear mu(3)-oxo-linked or hexanuclear mu-OH-linked Fe(III) pivalate clusters and rare earth nitrates. The magnetic studies revealed antiferromagnetic exchange interactions within the Fe-3 trimeric unit, as well as ferromagnetic exchange interactions between the Fe(III) and Ln(III) centers when diamagnetic Y(III) is substituted by paramagnetic Ln(III).
CRYSTAL GROWTH & DESIGN
(2022)
Article
Physics, Multidisciplinary
Erkki Lahderanta, Elena Hajdeu-Chicarosh, Victor Kravtsov, Mikhail A. Shakhov, Vladimir N. Stamov, Ivan Bodnar, Ernest Arushanov, Konstantin G. Lisunov
Summary: This study investigates the resistivity and magnetoresistance in Cu2Zn1-x Cd x SnS4 single crystals and determines important electronic parameters for different alloy compositions. The findings provide significant insights into the electronic properties and conduction mechanisms of this material.
NEW JOURNAL OF PHYSICS
(2022)
Review
Chemistry, Multidisciplinary
Shi-Xia Liu, Ali K. Ismael, Alaa Al-Jobory, Colin J. Lambert
Summary: This article introduces the conduction of electrons through single molecules, and reveals the important role of quantum interference in the conductivity properties. It shows that conductivity can be controlled by adjusting the connectivity of electrodes and adding heteroatoms to the molecules. These effects can be observed even at room temperature, and can be described by simple quantum circuit rules and an intuitive "magic ratio" theory.
ACCOUNTS OF CHEMICAL RESEARCH
(2023)
Article
Chemistry, Multidisciplinary
Dumitru Stati, Jan van Leusen, Naushad Ahmed, Victor Ch Kravtsov, Paul Koegerler, Svetlana G. Baca
Summary: The coordination cluster compound [CoIII2DyIII4(OH)2- (ib)8(bdea)2(NO3)4(H2O)2]middot2MeCN (1) was synthesized by reacting cobalt(II) isobutyrate (ib) with Dy(NO3)3middot6H2O and N-butyldiethanolamine (H2bdea) in air. The {CoIII2DyIII4} core fragment consists of two {CoDy2(mu 3-OH)} triangles connected via mu-O and mu-carboxylate bridges, resulting in a flat zigzag metal scaffold.
CRYSTAL GROWTH & DESIGN
(2023)
Article
Multidisciplinary Sciences
Krisztina Regos, Remy Pawlak, Xing Wang, Ernst Meyer, Silvio Decurtins, Gabor Domokos, Kostya S. Novoselov, Shi-Xia Liu, Ulrich Aschauer
Summary: Molecular self-assembly plays a crucial role in technology and biological systems. Predicting pattern formation in 2D molecular networks is challenging, but this study introduces a simplified hierarchical geometric model based on graph theory to predict extended network patterns. The model provides pattern classification and prediction within specific ranges, offering a different perspective on self-assembled molecular patterns and potential applications.
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
(2023)
Article
Chemistry, Multidisciplinary
Mariana Darii, Jan van Leusen, Victor Ch. Kravtsov, Yurii Chumakov, Karl Kramer, Silvio Decurtins, Shi-Xia Liu, Paul Kogerler, Svetlana G. Baca
Summary: Ultrasound-assisted synthesis was used to prepare a new nonanuclear SMM, [Mn7Dy2O6(OH)(OMe)(2)(piv)(8)(dea)(2)(MeOH)(2)(H2O)(2)](NO3)& BULL;H2O, with a {Mn-6 (MnDy2)-Mn-III-Dy-IV (III)}(28+) core based on vertex-sharing double-cubane units.
CRYSTAL GROWTH & DESIGN
(2023)
Article
Biochemistry & Molecular Biology
Ping Zhou, Ulrich Aschauer, Silvio Decurtins, Thomas Feurer, Robert Haner, Shi-Xia Liu
Summary: Polycyclic aromatic hydrocarbons (PAHs) are promising materials for organic electronics, and non-hexagonal ring-fused PAHs are particularly desirable for their unique optoelectronic properties. In this study, a new redox-active azulene-perylene diimide triad 1 and its ring-fused counterpart diazulenocoronene diimide 2 were synthesized and characterized. A significant change in the localization of HOMO and LUMO was observed upon the fusion of azulene and perylene diimide in compound 2, resulting in a lack of intramolecular charge-transfer character. Density functional theory (DFT) and time-dependent DFT (TD-DFT) calculations provided further insight into the electronic transitions. The adaptive response to acids and bases manifested as a reversible two-color change attributed to changes in the chemical structures. These findings open up possibilities for manipulating the energy levels of organic chromophores, leading to potential applications in organic electronics and optical sensors.
Article
Multidisciplinary Sciences
Chao Li, Christoph Kaspar, Ping Zhou, Jung-Ching Liu, Outhmane Chahib, Thilo Glatzel, Robert Haener, Ulrich Aschauer, Silvio Decurtins, Shi-Xia Liu, Michael Thoss, Ernst Meyer, Remy Pawlak
Summary: Electron-vibration coupling plays a critical role in the development of molecular electronics, spintronics, and quantum technologies. This study demonstrates the direct control of vibronic excitations in TBTAP molecules on the surface of Ag(111).
NATURE COMMUNICATIONS
(2023)
Article
Chemistry, Multidisciplinary
Vasilii Graur, Anastasia Mardari, Pavlina Bourosh, Victor Kravtsov, Irina Usataia, Ianina Ulchina, Olga Garbuz, Aurelian Gulea
Summary: 2-Hydroxybenzaldehyde 4,S-diallylisothiosemicarbazone (HL) was synthesized and characterized. Six stable complexes were obtained by interaction of HL with metal salts. The synthesized complexes showed higher antioxidant activity than trolox. Complex 4 exhibited the highest activity. The introduction of heterocyclic amine or S-allyl group affected the activity of the synthesized substances.
ACTA CHIMICA SLOVENICA
(2023)
Article
Chemistry, Physical
Fabio Montisci, Arianna Lanza, Martin Fisch, Camille Sonneville, Yan Geng, Christian Reber, Silvio Decurtins, Shi-Xia Liu, Piero Macchi
Summary: This study focuses on the effect of compression and cooling on the stereolectronic properties of TTF-BTD molecule and predicts the formation of a new phase under high pressure.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2023)
Article
Chemistry, Multidisciplinary
Ping Zhou, Maryam Nazari Haghighi Pashaki, Hans-Martin Frey, Andreas Hauser, Silvio Decurtins, Andrea Cannizzo, Thomas Feurer, Robert Haener, Ulrich Aschauer, Shi-Xia Liu
Summary: This study demonstrates that long-lived charge-separated (CS) state can be achieved in fused donor-acceptor ensembles through symmetric annulation. Asymmetric charge trapping significantly stabilizes the CS state and leads to a longer lifetime compared to asymmetric systems.
Article
Chemistry, Multidisciplinary
Mariana Darii, Annabel Mikosch, Jan van Leusen, Victor Ch Kravtsov, Elena G. Dvornina, Steliana T. Clapco, Alexandra Ciloci, Paul Koegerler, Svetlana G. Baca
Summary: This study reveals the surprising coordination characteristics of the polypyridyl ligand with Fe and Mn precursors. Single-crystal X-ray diffraction analysis confirms the coordination mode of the ligand. The magnetic properties of Fe-tpt and Mn-tpt compounds show dominant antiferromagnetic coupling. Furthermore, the Mn-tpt complexes exhibit efficient catalytic properties in the production of enzymes by microorganisms.
Article
Chemistry, Multidisciplinary
Mariana Darii, Ecaterina S. Beleaev, Victor Ch. Kravtsov, Paulina Bourosh, Yurii Chumakov, Jurg Hauser, Silvio Decurtins, Shi-Xia Liu, Olga Sultanova, Svetlana G. Baca
Summary: A series of multicomponent compounds containing [Co(NH3)(6)](3+) cations and various organic donors have been synthesized and crystallized. The [Co(NH3)(6)](3+) cation serves as a building block for the formation of multi-component compounds with extended charge-supported networks and various interactions. Compound 1, consisting of hexaammine cobalt(III) chloride and 1,10-phenanthroline, showed the highest inhibitory potential against bacterial cancer in plants.
NEW JOURNAL OF CHEMISTRY
(2022)