Four complexes, [Cu(OCH)(CHOH)]·2HO (), [ZnCl]·2HO·2CHOH (), [HgBr]·4CHOH (), and {[CdCl]·4HO·4CHOH} (), have been synthesized and characterized from a bis(pyridylhydrazone) ligand () with copper(II), zinc(II), mercury(II) or cadmium(II), respectively. Complex exists as a centrosymmetric tetranuclear dimer with as deprotonated tridentate ligand. Complexes and exist as centrosymmetric metallamacrocycles with as bidentate ligand. Complex exists as a 1D looped-chain coordination polymer. The thermal stabilities and vapor adsorption properties of the four complexes were investigated as well.
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http://dx.doi.org/10.3390/molecules26010109 | DOI Listing |
Inorg Chem
December 2024
Institute of Chemistry, University of Silesia, Szkolna 9, 40-006 Katowice, Poland.
This paper provides extensive studies of [IrCl(Ph-py)(morph-CH-terpy-κN)]PF (), [Ir(Ph-py)(morph-CH-terpy-κN)]PF (), [IrCl(Ph-py)(Ph-terpy-κN)]PF (), and [Ir(Ph-py)(Ph-terpy-κN)]PF () designed to demonstrate the possibility of controlling the photophysical properties of mono- and bis-cyclometalated complexes [IrCl(Ph-py)(R-CH-terpy-κN)]PF and [Ir(Ph-py)(R-CH-terpy-κN)]PF through a remote electron-donating substituent introduced into the 4'-position of 2,2':6',2″-terpyridine (terpy) via the phenyl linker. The attachment of the morpholinyl (morph) group was evidenced to induce dramatic changes in the emission characteristics of the monocyclometalated Ir(III) systems with coordinated R-CH-terpy ligand (κN). In solution, the obtained complex [IrCl(Ph-py)(morph-CH-terpy-κN)]PF was found to be a rare example of dual-emissive Ir(III) systems.
View Article and Find Full Text PDFOne very unique feature of oxidorhenium(v) complexes is their dual catalytic activity in both reduction of stable oxyanions like perchlorate ClO and nitrate NO as well as epoxidation of olefins. In our ongoing research efforts, we were interested to study how an electron-withdrawing ligand would affect both these catalytic reactions. Hence, we synthesized the novel bidentate dimethyloxazoline-dichlorophenol ligand HL1 and synthesized oxidorhenium(v) complex [ReOCl(L1)] (1).
View Article and Find Full Text PDFAngew Chem Int Ed Engl
December 2024
Hangzhou Normal University, College of Material, Chemistry and Chemical Engineering, 2318 Yuhangtang Road, 311121, Hangzhou, CHINA.
In industry, the two important nitrile starting materials, adiponitrile and 2-methylglutaronitrile, are primarily manufactured through the well-known DuPont process, which consists of a tandem sequence including first hydrocyanation, isomerization and second hydrocyanation. However, this mature process has the intrinsic defects of step efficiency and regioselectivity. Herein, we report a nickel-catalyzed divergent, one-step double hydrocyanation of 1,3-butadiene to produce either adiponitrile or 2-methylglutaronitrile in high regioselectivity.
View Article and Find Full Text PDFAngew Chem Int Ed Engl
December 2024
Nagoya University: Nagoya Daigaku, Department of Chemistry, Graduate School of Science, Furo-cho, Chikusa-ku, 464-8602, Nagoya, JAPAN.
A new series of metal-organic nanotubes was constructed through one-dimensional assembly using molecular triangles or molecular squares composed of paddlewheel dirhodium complexes and bidentate axial ligands. The metal-organic nanotubes were significantly different from conventional solid metal-organic framework (MOF) motifs. They exhibit good solubility owing to the branched side chains at their periphery and demonstrate high orientation capabilities in thin films owing to their anisotropic structure.
View Article and Find Full Text PDFActa Crystallogr E Crystallogr Commun
October 2024
Rigaku Americas Corporation, The Woodlands Texas 77381 USA.
The crystal structure of the title compound, [Ni(CHN)(NO)]NO, at room temperature, has monoclinic (2/) symmetry. The structure displays inter-molecular hydrogen bonding. The nickel displays a distorted bipyramidal geometry with the symmetric bidentate bonded nitrate occupying an equatorial site.
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