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Tricopper Melaminate, a Metal-Organic Framework Containing Dehydrogenated Melamine and Cu-Cu Bonding.

Paula Kallenbach, Elaheh Bayat, Markus Ströbele, Carl P Romao, Hans-Jürgen Meyer,

Crystals of Cu3(C3N6H3) are formed by a solid-state reaction of CuCl with melamine to form a layered framework structure with open pores running along the hexagonal axis direction of the P6/mcc structure. The compound contains the hitherto unknown (C3N6H3)3- ion, assigned as melaminate. Bonding interactions within and between Cu-Cu dumbbells, ... Read more >>

Inorg Chem (Inorganic chemistry)
[2021, :]

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The Highly Frustrated 5d2 Double Perovskite Doppelgängers, SrLaMgReO6 and SrLaLiOsO6. A Comparison including Isostructural La2LiReO6.

Fang Yuan, Zachery W Cronkwright, Joey A Lussier, Christopher R Wiebe, Paul A Dube, Corey M Thompson, Timothy J S Munsie, Graeme M Luke, John E Greedan,

The synthesis and characterization of the double perovskite SrLaLiOsO6 is presented. It is isostructural (P21/n) and isoelectronic (5d2) with SrLaMgReO6, which has been reported previously. The cell volumes are the same to within 1.4%: i.e., these perovskites are doppelgängers. In a previous study SrLaMgReO6 showed no sign of spin order ... Read more >>

Inorg Chem (Inorganic chemistry)
[2021, :]

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Synthesis and Magnetic Properties of a Dimerized Trinuclear Ni String Complex, [Ni6Cl2(dpa)8](I5)2·0.25I2 (dpa- = 2,2'-Dipyridylamide Anion).

Kentaro Aoki, Kazuya Otsubo, Yukihiro Yoshida, Yojiro Kimura, Kunihisa Sugimoto, Hiroshi Kitagawa,

Metal string complexes, linearly aligned transition metal arrays coordinated with the multidentate organic ligands, have gained much attention both in unique electronic/structural properties and in potential applications as conductive molecular nanowires. Here we report on a dimerized NiII trinuclear complex, [Ni6Cl2(dpa)8](I5)2·0.25I2 (dpa- = 2,2'-dipyridylamide anion). X-ray structural analysis revealed that ... Read more >>

Inorg Chem (Inorganic chemistry)
[2021, :]

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A Two-Fold Interpenetrated Dual-Emitting Luminescent Metal-Organic Framework as a Ratiometric Sensor for Chromium(III).

Chen Lin, Man Wang, Jiawei Tang, Zhenyan Zhu, Pengyan Wu, Aonan Hu, Lijiao Zhang, Jian Wang,

A novel two-fold interpenetrated metal-organic framework, namely Co-EDDA, was synthesized by hydrothermal reaction of 5,5'-[ethane-1,2-diylbis(oxy)]diisophthalic acid (H4EDDA), Co(NO3)2·6H2O, and 1,4-di(1H-imidazol-1-yl)benzene in water in an alkaline environment and structurally characterized. Co-EDDA could display clear dual-emission signals at 350 and 430 nm, representing the charge transfer emission between metal ions and the ... Read more >>

Inorg Chem (Inorganic chemistry)
[2021, :]

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[Tc(OH2)(CO)3(PPh3)2]+: A Synthon for Tc(I) Complexes and Its Reactions with Neutral Ligands.

Maximilian Roca Jungfer, Ulrich Abram,

A scalable synthesis of the novel and highly reactive [Tc(OH2)(CO)3(PPh3)2]+ cation is described. The ligand-exchange chemistry of this compound with neutral ligands coordinating through C, N, O, S, Se, and Te has been explored systematically. The complexes either retain the original mer-trans tricarbonyl core under exclusive exchange of the aqua ... Read more >>

Inorg Chem (Inorganic chemistry)
[2021, :]

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Multiple Strategies to Fabricate a Highly Stable 2D CuIICuI-Organic Framework with High Proton Conductivity.

Lijia Zhao, Rong-Rong Zhu, Shuyu Wang, Liancheng He, Lin Du, Qi-Hua Zhao,

Using multifunctional organic ligands with multiple acidic groups (carboxylate and sulfonate groups) to synthesize metal-organic frameworks (MOFs) bearing effective H-bond networks is a promising strategy to obtain highly proton conductive materials. In this work, a highly stable two-dimensional MOF, [CuII5CuI2(μ3-OH)4(H2O)6(L)2(H2L)2]·3H2O (denoted as YCu161; H3L = 6-sulfonaphthalene-1,4-dicarboxylic acid) containing mixed-valence [CuII5CuI2(μ3-OH)4]8+ ... Read more >>

Inorg Chem (Inorganic chemistry)
[2021, :]

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Zn Coordination and the Identity of the Halide Ancillary Ligand Dramatically Influence the Excited-State Dynamics and Bimolecular Reactions of 2,3-Di(pyridin-2-yl)benzo[g]quinoxaline.

Lauren M Loftus, Emma C Olson, David J Stewart, Alexis T Phillips, Kuppuswamy Arumugam, Thomas M Cooper, Joy E Haley, Tod A Grusenmeyer,

The optical properties of coordination complexes with ligands containing nitrogen heterocycles have been extensively studied for decades. One subclass of these materials, metal complexes utilizing substituted pyrazines and quinoxalines as ligands, has been employed in a variety of photochemical applications ranging from photodynamic therapy to organic light-emitting diodes. A vast ... Read more >>

Inorg Chem (Inorganic chemistry)
[2021, :]

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Observation of Aromatic Three-Membered Rings in Ge3C and Ge3O via Photoelectron Spectroscopy and Theoretical Calculations.

Li-Juan Zhao, Shuai-Ting Yan, Hong-Guang Xu, Xi-Ling Xu, Wei-Jun Zheng,

The structures and chemical bonding of Ge3C- and Ge3O- as well as their neutrals are explored with anion photoelectron spectroscopy and theoretical calculations. The vertical detachment energies of Ge3C- and Ge3O- are measured to be 1.51 ± 0.04 and 2.00 ± 0.04 eV, respectively. It is found that Ge3C-/0 have ... Read more >>

Inorg Chem (Inorganic chemistry)
[2021, :]

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High-Pressure Synthesis and Magnetism of the 4H-BaMnO3 Single Crystal and Its 6H-Type Polymorph.

Shijun Qin, Yi-Ying Chin, Bowen Zhou, Zhehong Liu, Xubin Ye, Jia Guo, Guangxiu Liu, Chien-Te Chen, Zhiwei Hu, Youwen Long,

A 4H-type BaMnO3 single crystal was prepared by combining the floating zone method with high-pressure treatment at 5 GPa and 1023 K. The crystal crystallizes to a hexagonal structure with space group P63/mmc and lattice parameters a = 5.63723(5) Å and c = 9.22355(8) Å. In this structure, face-sharing MnO6 ... Read more >>

Inorg Chem (Inorganic chemistry)
[2021, :]

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DFT-Guided Crystal Structure Redetermination and Lattice Dynamics of the Intermetallic Actinoid Compound UIr.

Malte Sachs, Sergei I Ivlev, Martin Etter, Matthias Conrad, Antti J Karttunen, Florian Kraus,

UIr has been discussed as a rare example of a noncentrosymmetric, ferromagnetic superconductor crystallizing in the acentric PdBi structure type (P21, mP16). Here we present a new structure model for UIr. By means of single-crystal and powder X-ray diffraction we find UIr to crystallize in the centrosymmetric space group P21/c, ... Read more >>

Inorg Chem (Inorganic chemistry)
[2021, :]

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Antiferromagnetic Exchange and Metal-Metal Bonding in Roussin's Black Sulfur and Selenium Salts.

Daniel J SantaLucia, John F Berry,

Atom-efficient syntheses of the tetraethylammonium Roussin black sulfur and selenium salts ((Et4N)[Fe4E3(NO)7], E = S, Se) as well as their 15N-labeled counterparts are described herein. Broken-symmetry DFT calculations were conducted on both complexes to model an antiferromagnetic interaction between the apical {FeNO}7 unit, Sap = 3/2, and the three basal ... Read more >>

Inorg Chem (Inorganic chemistry)
[2021, :]

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Fabrication of Metal Nanoparticle Composites by Slow Chemical Reduction of Metal-Organic Frameworks.

Yu Fu, Xu Zhai, Sha Wang, Lei Shao, Xiao-Jue Bai, Ze-Shun Su, Yun-Ling Liu, Li-Ying Zhang, Jun-Yi Chen,

Constructing metal nanoparticle (MNP) composites from metal-organic framework (MOF) precursors has attracted extensive attention as the MOF precursors provide an excellent porous matrix for the generation of MNP composites, which enables the direct fabrication of well-dispersed MNP composites. In this work, a novel strategy is proposed to fabricate MNP composites ... Read more >>

Inorg Chem (Inorganic chemistry)
[2021, :]

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Function of Doping Ru Element in the Hydrogen Evolution Reaction in Rare-Earth Transition-Metal Intermetallics.

Shen-Jing Ji, Dong Zhang, Nian-Tzu Suen,

Transition metal-based intermetallics are promising electrocatalysts for replacing the commercial Pt metal in the hydrogen evolution reaction (HER). In this work, RENi2 and RERu0.25Ni1.75 (RE = Pr, Tb, and Er) were synthesized and their electrocatalytic HER activities were explored. Among undoped compounds, PrNi2 exhibits the best performance and requires an ... Read more >>

Inorg Chem (Inorganic chemistry)
[2021, :]

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Ferromagnetic Coupling in Oxidovanadium(IV)-Porphyrin Radical Dimers.

Akhil Kumar Singh, Mohammad Usman, Sabyasachi Sarkar, Giuseppe Sciortino, Devesh Kumar, Eugenio Garribba, Sankar Prasad Rath,

Three different oxidovanadium(IV) porphyrin dimers with anti, cis, and trans arrangements of the two rings have been synthesized by changing the bridge between the porphyrin macrocycles. This provides a unique opportunity to investigate the role of the bridge and spatial arrangement between the two VIVO centers for their electronic communication ... Read more >>

Inorg Chem (Inorganic chemistry)
[2021, :]

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Mixed-Metal Cu-Zn Thiocyanate Coordination Polymers with Melting Behavior, Glass Transition, and Tunable Electronic Properties.

Chayanit Wechwithayakhlung, Suttipong Wannapaiboon, Sutassana Na-Phattalung, Phisut Narabadeesuphakorn, Similan Tanjindaprateep, Saran Waiprasoet, Thidarat Imyen, Satoshi Horike, Pichaya Pattanasattayavong,

The solid-state mechanochemical reactions under ambient conditions of CuSCN and Zn(SCN)2 resulted in two novel materials: partially Zn-substituted α-CuSCN and a new phase CuxZny(SCN)x+2y. The reactions take place at the labile S-terminal, and both products show melting and glass transition behaviors. The optical band gap and solid-state ionization potential can ... Read more >>

Inorg Chem (Inorganic chemistry)
[2021, :]

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Functionalization of Mono- and Bimetallic MIL-100(Al,Fe) MOFs by Ethylenediamine: Postfunctionalization, Brønsted Acido-Basicity, and Unusual CO2 Sorption Behavior.

Timothy Steenhaut, Luca Fusaro, Koen Robeyns, Séraphin Lacour, Xiao Li, Julien G Mahy, Véronique Louppe, Nicolas Grégoire, Gabriella Barozzino-Consiglio, Jean-François Statsyns, Carmela Aprile, Yaroslav Filinchuk, Sophie Hermans,

The metal sites of MIL-100(Fe), MIL-100(Fe,Al), and MIL-100(Al) metal-organic frameworks (MOFs) were decorated with ethylenediamine (EN). Interestingly, the Al-containing MOFs presented hierarchized porosity, and their structural integrity was maintained upon functionalization. Solution and solid-state NMR confirmed the grafting efficiency in the case of MIL-100(Al) and the presence of a free ... Read more >>

Inorg Chem (Inorganic chemistry)
[2021, :]

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LiB9O15·H2dap·H2O: A Cotemplated Acentric Layer-Pillared Borate Built by Mixed Oxoboron Clusters.

Xu-Yan Li, Guo-Yu Yang,

An acentric layer-pillared borate, LiB<sub>9</sub>O<sub>15</sub>·H<sub>2</sub>dap·H<sub>2</sub>O (<b>1</b>, dap = 1,3-diaminopropane), cotemplated by organic and inorganic cations and build by mixed oxoboron cluster units of B<sub>6</sub>O<sub>13</sub><sup>8-</sup> and B<sub>3</sub>O<sub>7</sub><sup>5-</sup>, has first been made under solvothermal conditions, in which the B<sub>6</sub>O<sub>13</sub><sup>8-</sup> clusters link each other to form 2D layers containing 9-membered ring (MR) windows, ... Read more >>

Inorg Chem (Inorganic chemistry)
[2021, :]

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Impact of Zr6 Node in a Metal-Organic Framework for Adsorptive Removal of Antibiotics from Water.

Hye Jin Cho, Eunyoung Kang, Seonghoon Kim, D ChangMo Yang, Joohan Nam, Eunji Jin, Wonyoung Choe,

Quinolone-based antibiotics commonly detected in surface, ground, and drinking water are difficult to remove and therefore pose a threat as organic contaminants of aqueous environment. We performed adsorptive removal of quinolone antibiotics, nalidixic acid and ofloxacin, using a zirconium-porphyrin-based metal-organic framework (MOF), PCN-224. PCN-224 exhibits the highest adsorption capacities for ... Read more >>

Inorg Chem (Inorganic chemistry)
[2021, :]

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Bioinspired Heterobimetallic Photocatalyst (RuIIchrom-FeIIIcat) for Visible-Light-Driven C-H Oxidation of Organic Substrates via Dioxygen Activation.

Siddhant Singh, Divyanshu Nautiyal, Franck Thetiot, Nicolas Le Poul, Tapas Goswami, Arun Kumar, Sushil Kumar,

We report a bioinspired heterobimetallic photocatalyst RuIIchrom-FeIIIcat and its relevant applications toward visible-light-driven C-H bond oxidation of a series of hydrocarbons using O2 as the O-atom source. The RuII center absorbs visible light near 460 nm and triggers a cascade of electrons to FeIII to afford a catalytically active high-valent ... Read more >>

Inorg Chem (Inorganic chemistry)
[2021, :]

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Bonding and Reactivity of a Pair of Neutral and Cationic Heterobimetallic RuZn2 Complexes.

Fedor M Miloserdov, Anne-Frédérique Pécharman, Lia Sotorrios, Nasir A Rajabi, John P Lowe, Stuart A Macgregor, Mary F Mahon, Michael K Whittlesey,

A combined experimental and computational study of the structure and reactivity of two [RuZn2Me2] complexes, neutral [Ru(PPh3)(Ph2PC6H4)2(ZnMe)2] (2) and cationic [Ru(PPh3)2(Ph2PC6H4)(ZnMe)2][BArF4] ([BArF4] = [B{3,5-(CF3)2C6H3}4]) (3), is presented. Structural and computational analyses indicate these complexes are best formulated as containing discrete ZnMe ligands in which direct Ru-Zn bonding is complemented by ... Read more >>

Inorg Chem (Inorganic chemistry)
[2021, :]

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H-Atom Assignment and Sb-O Bonding of [Mes3SbOH][O3SPh] Confirmed by Neutron Diffraction, Multipole Modeling, and Hirshfeld Atom Refinement.

John S Wenger, Xiaoping Wang, Timothy C Johnstone,

Neutron wavelength-resolved Laue diffraction experiments permit accurate refinement of the H-atom positions and anisotropic displacement parameters of [Mes3SbOH][O3SPh]. A multipole-based charge density refinement and a topological analysis of the refined electron density were also performed. Hirshfeld atom refinement (HAR) recovers the neutron-determined H-atom parameters, and the quantum-mechanical electron density used ... Read more >>

Inorg Chem (Inorganic chemistry)
[2021, :]

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Synthesis of MAuAg (M = Ni, Pd, or Pt) and NiAuCu Heterotrimetallic Complexes Ligated by a Tritopic Carbanionic N-Heterocyclic Carbene.

Licheng Zhan, Mingqiu Zhu, Lin Liu, Jiwei Wang, Congyun Xie, Jun Zhang,

Heterotrimetallic complexes (NiAuAg, PdAuAg, PtAuAg, and NiAuCu) containing a tritopic <i>N</i>-heterocyclic carbene (NHC) have been synthesized for the first time through the deprotonation and metalation of heterodimetallic complexes and were structurally characterized by single-crystal X-ray diffraction. The carbene character of the donor groups in the tritopic NHC complexes was established ... Read more >>

Inorg Chem (Inorganic chemistry)
[2021, :]

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In Situ Study of Reduction of MnxCo3-xO4 Mixed Oxides: The Role of Manganese Content.

Olga A Bulavchenko, Tatyana N Afonasenko, Anastasya V Ivanchikova, Vadim Yu Murzin, Anna M Kremneva, Andrey A Saraev, Vasily V Kaichev, Sergey V Tsybulya,

A series of Mn-Co mixed oxides with a gradual variation of the Mn/Co molar ratio were prepared by coprecipitation of cobalt and manganese nitrates. The structure, chemistry, and reducibility of the oxides were studied by X-ray diffraction (XRD), X-ray absorption spectroscopy, X-ray photoelectron spectroscopy (XPS), and temperature-programmed reduction (TPR). It ... Read more >>

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[2021, :]

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Active Site Engineering in [email protected]/Graphene Heterostructures Enabling Enhanced Hydrogen Evolution.

Manman Guo, Fen Qiu, Yuxi Yuan, Ting Yu, Cailei Yuan, Zhang-Hui Lu,

As the core of an electrocatalyst, the active site is critical to determine its catalytic performance in the hydrogen evolution reaction (HER). In this work, porous N-doped carbon-encapsulated CoP nanoparticles on both sides of graphene ([email protected]/GR) are derived from a bimetallic metal-organic framework (MOF)@graphene oxide composite. Through active site engineering ... Read more >>

Inorg Chem (Inorganic chemistry)
[2021, :]

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σ-Aromaticity Planar Pentacoordinate Beryllium Atoms.

Chen Chen, Yu-Qian Liu, Zhong-Hua Cui,

Six-valence-electron planar pentacoordinate beryllium (ppBe) is explored herein as a global minimum, which is only constructed by s-block metals in BeM<sub>5</sub><sup>+</sup> (M = Cu, Ag, Au). The bonding in ppBe can be regarded as the excited-stated Be with a 2p<sub><i>x</i></sub><sup>1</sup>2p<sub><i>y</i></sub><sup>1</sup> electronic configuration, forming electron sharing with doublet M<sub>5</sub><sup>+</sup> motifs followed ... Read more >>

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[2021, :]

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