Crystal structure of triethylammonium bis{3-(((3-oxidonaphthalen-1-yl)methylene)amino)-2-oxo-2H-chromen-4-olato-κ³ O,N,O′}manganese(III), C₄₆H₃₈MnN₃O₈

Abstract

CCDC no.: 1540633The crystal structure is shown in the figure. Tables 1 and 2 contain details on crystal structure and measurement conditions and a list of the atoms including atomic coordinates and displacement parameters. Source of materialSynthesis of the ligand: The ligand was synthesized according to an analogous method reported previously in Synthesis of the manganese(III) complex:A methanol solution (4 mL) of manganese acetate tetrahydrate (12.3 mg, 0.05 mmol) was added dropwise to a mixed solution composed by triethylamine (0.5 mL) and orange yellow ethyl acetate solution (3.5 mL) of 4-hydroxy-3-[(2-hydroxynaphthalen-1-ylmethylene)-amino]-chromen-2-one (33.1 mg, 0.1 mmol) at room temperature. The mixing solution turned to red-brown immediately and the filtrate was allowed to stand at room temperature for about three weeks. Experimental detailsHydrogen atoms were placed in their geometrically idealized positions and constrained to ride on their parent atoms. DiscussionCoumarin derivatives are well known to possess a diverse array of pharmacological and biochemical properties and has resulted in the chemistry of coumarins becoming well

Crystal structure of tris{(3-((E)-(((E)-2-oxidobenzylidene)hydrazono)methyl)-2-oxo-2H-chromen-4-olato-κ3 O,N:N′)}dicobalt(III)tris(dimethylformamide), C60H50Co2N9O15

“…Meanwhile, the Co2 center is coordinated also in a O 3 N 3 manner, but from the coumarin ring in the same L 2− ligands. Thus, the coordination geometry of the Co(III) centers can be described as a slightly distorted octahedron, typical for this ligand [22,23].…”