Article
Chemistry, Multidisciplinary
Cyrielle L. F. Dazem, A. Ken Inge, Dominique Luneau, Lars Ohrstrom, Justin Nenwa
Summary: Mono- and di-protonated pyridine type cations were used for the synthesis of two bis(oxalato) cuprate(II) salts. The crystal structures of these two compounds showed different coordination modes of C2O42-. X-ray diffraction revealed that one compound exhibited no polymerization of [Cu(C2O4)2]2- ions, while the other compound demonstrated polymerization of [Cu(C2O4)2]2- units through Cu-O-axial contact. One compound formed 2D supramolecular layers, while the other compound formed 1D chains. Thermal analysis indicated the absence of solvation water molecules in both compounds. Magnetic studies showed the presence of antiferromagnetic coupling in both compounds.
Article
Crystallography
Kwang Ha
Summary: The structure of a C46H36N6NiS2 complex is reported, with unit cell parameters of a = 9.1007(10) angstrom, b = 9.8108(10) angstrom, c = 11.8638(12) angstrom. The molecular structure and crystallographic data, including atomic coordinates, are shown in the report.
ZEITSCHRIFT FUR KRISTALLOGRAPHIE-NEW CRYSTAL STRUCTURES
(2023)
Article
Engineering, Multidisciplinary
Anatoly G. Korepin, Natalia M. Glushakova, David B. Lempert, Anatoly I. Kazakov, Gennady V. Shilov, Denis V. Korchagin, Vadim M. Volokhov, Elena S. Amosova, Sergey M. Aldoshin
Summary: This study investigates the molecular and crystal structure and properties of a new high-energy compound NBTAT, as well as its comparative analysis with the analogue BTAT. The results show that NBTAT has excellent oxidizer capabilities in metal-free solid composite propellants.
DEFENCE TECHNOLOGY
(2022)
Article
Crystallography
Kang-Woo Kim
Summary: K2PdSe10 is an orthorhombic compound with lattice parameters of a = 8.293(3) angstrom, b = 10.987(3) angstrom, c = 16.432(5) angstrom. The unit cell volume is V = 1497.1(8) angstrom(3), and the space group is Pcma (no. 55). The R-factor for reflections and the weighted residual factor are R-gt(F) = 0.0349 and wR(ref) (F-2) = 0.0688, respectively. The measurement was conducted at a temperature of 173(2) K.
ZEITSCHRIFT FUR KRISTALLOGRAPHIE-NEW CRYSTAL STRUCTURES
(2023)
Article
Biochemistry & Molecular Biology
Wei-Te Lee, Tsung-Te Liao, Jhy-Der Chen
Summary: A series of coordination polymers with different topologies were obtained by reactions between Ni(II) salts, various oxalamide ligands, and angular dicarboxylic acids under hydro(solvo)thermal conditions.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2022)
Article
Biochemistry & Molecular Biology
Hong-Juan Liu, Rui Yi, Dong-Mei Chen, Chao Huang, Bi-Xue Zhu
Summary: Four complexes were synthesized and characterized from a bis(pyridylhydrazone) ligand with copper(II), zinc(II), mercury(II) or cadmium(II), respectively, and their structures and properties were investigated.
Article
Chemistry, Applied
Shan-Shan Feng, Li-Li Li, Peng Li, Wen-Kui Dong
Summary: Two novel homomultinuclear complexes were synthesized and characterized with a newly designed rigid bis(salamo)-type tetraoxime ligand. Complex 1 is a symmetrical six-core cluster structure with Co(II) atoms sandwiched between the ligands, while complex 2 has a dinuclear structure with Ni(II) atoms located in the N2O2 cavities of the ligand. The coordination ratios were determined by studying the fluorescence properties, showing different metal to ligand binding ratios for each complex.
APPLIED ORGANOMETALLIC CHEMISTRY
(2022)
Article
Chemistry, Multidisciplinary
Yulia P. Tupolova, Leonid D. Popov, Valery G. Vlasenko, Konstantin B. Gishko, Anna A. Kapustina, Alexandra G. Berejnaya, Yuliya A. Golubeva, Lyubov S. Klyushova, Elizaveta V. Lider, Vladimir A. Lazarenko, Stanislav S. Bachurin, Igor N. Shcherbakov
Summary: Based on the bis-hetarylhydrazone H2L, a series of mononuclear copper(ii) coordination compounds were synthesized and their structures were studied using several methods. The copper center in these compounds is in a square pyramidal environment. The cytotoxic activity of the compounds against HepG2 and MRC-5 cell lines was evaluated, and the Cu(ii) complexes showed significant dose-dependent cytotoxic effects.
NEW JOURNAL OF CHEMISTRY
(2023)
Article
Chemistry, Inorganic & Nuclear
Julia Joekel, Frauke Nyssen, Daniel Siegmund, Ulf-Peter Apfel
Summary: The study reports the synthesis of an asymmetric hexa-amine cryptand analogue by selectively exchanging three of the secondary amines of one binding site with sulphur atoms, allowing for the formation of stable dinuclear complexes of metals with different oxidation numbers.
DALTON TRANSACTIONS
(2021)
Article
Thermodynamics
Juraj Kuchar, Katarina Homzova, Peter Tomcik, Eva Culkova, Zuzana Vargova, Katarina Gyoryova
Summary: In this study, the complex compound bis(2,4-dichlorobenzoato-O)bis(thiourea-S)zinc(II) was characterized using various analytical techniques. The thermal decomposition process and structural features were investigated, revealing a distorted tetrahedral coordination environment around the zinc(II) atom and a stabilized structure through hydrogen bonding.
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
(2023)
Article
Biochemistry & Molecular Biology
Marcos Rua-Sueiro, Paula Munin-Cruz, Adolfo Fernandez, Juan M. Ortigueira, Maria Teresa Pereira, Jose M. Vila
Summary: A series of novel diphosphane-derived metal complexes have been obtained through reactions, which contain two metal rings, each enclosing a P=N double bond. These complexes exhibit well-defined crystal structures.
Article
Chemistry, Applied
Ruo-Yu Li, Lin Dou, Li Tong, Wen-Kui Dong
Summary: Two helical centrosymmetric homotetranuclear Cu (II) complexes were synthesized and characterized in this study. The coordination modes and molecular stabilities were analyzed through structural analysis and calculations, and the antibacterial activities were also investigated.
APPLIED ORGANOMETALLIC CHEMISTRY
(2022)
Article
Crystallography
Gao Xiang, Tai Xi-Shi
Summary: The paragraph describes a crystal structure of C27H23N5O5Co, which belongs to the triclinic crystal system with lattice parameters a = 8.6503(7) angstrom, b = 11.1188(8) angstrom, c = 13.2711(11) angstrom, and angles α = 79.185(7)degrees, β = 71.970(7)degrees, γ = 87.951(6)degrees, having a volume of 1191.85(17) angstrom(3) at T = 200 K.
ZEITSCHRIFT FUR KRISTALLOGRAPHIE-NEW CRYSTAL STRUCTURES
(2022)
Article
Crystallography
Yuan-Huan Deng, Qiong Wang
Summary: In this study, a new monoclinic crystal structure with the molecular formula C24H76CuN8V10O34 was reported. The unit cell parameters were determined to be a = 22.416(4) angstrom, b = 11.7003(18) angstrom, c = 20.079(3) angstrom, and β = 95.594(7)°, with a volume of 5241.2(14) angstrom^3.
ZEITSCHRIFT FUR KRISTALLOGRAPHIE-NEW CRYSTAL STRUCTURES
(2023)
Article
Biochemistry & Molecular Biology
Thandi B. Mbuyazi, Peter A. Ajibade
Summary: Bis(4-methylpiperidine-1-carbodithioato)-lead(II) and bis(4-benzylpiperidine-1-carbodithioato)-lead(II) were synthesized and used as precursors for lead sulphide nano photocatalysts for the degradation of rhodamine B. The prepared PbS nanoparticles showed relatively good photostability with a slight decrease in photodegradation efficiency as the reusability cycles progressed.