Direct synthesis of heterometallic Cu/Mo complexes with aromatic chelating N,N-donating ligands

Buvailo, Halyna I.; Makhankova, Valeriya G.; Kokozay, Vladimir N.; Omelchenko, Irina V.; Шишкин, Олег В.; Matoga, Dariusz; Jezierska, Julia

doi:10.1016/j.ica.2015.12.019

Cited by 9 publications

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References 29 publications

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“…As a continuation of our previous work, the system Cu 0 –bpy–(NH 4 ) 3 [PMo 12 O 40 ]–H 2 O was studied, yielding complex 1 . It was found that the Keggin anion transforms to Strandberg species during the interaction (Figure ).…”

Section: Resultsmentioning

confidence: 95%

Hybrid Cu-Containing Compounds Based on Lacunary Strandberg Anions: Synthesis under Mild Conditions, Crystal Structure, and Magnetic Properties

et al. 2022

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A one-pot reaction of a copper source (metallic powder Cu 0 or Cu 2+ salts) and bpy (bpy = 2,2′-bipyridine) in the presence of (NH 4 ) 2 HPO 4 and (NH 4 ) 6 Mo 7 O 24 •4H 2 O yields heterometallic hybrid compounds of the general type {[Cu-(bpy) n (H 2 O) m ] p [P 2 Mo x O y ]}. The structures exhibit a number of phosphomolybdate POMs including not only a common Strandberg anion [P 2 Mo 5 O 23 ] 6− but also its unprecedented biand trilacunary derivatives [P 2 Mo 3 O 18 ] 8− and [P 2 Mo 2 O 15 ] 8− . The structural determinants including the metal source (copper powder vs copper salts), counterion of the salts, and stoichiometry of the reagents were examined. An ex situ EPR study revealed the formation of different Cu II complexes in the reaction mixture depending on the copper precursor. The obtained compounds have been found to possess selectivity toward the sorption of methylene blue in a mixture of organic dyes. DC magnetic measurements of 1−3 indicate rather strong antiferromagnetic metal−metal exchange interactions. Compound 1 exhibits fieldinduced slow magnetic relaxation in AC magnetic measurements, which is a rarely observed phenomenon among Cu(II) complexes.

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Section: Resultsmentioning

confidence: 95%

Hybrid Cu-Containing Compounds Based on Lacunary Strandberg Anions: Synthesis under Mild Conditions, Crystal Structure, and Magnetic Properties

et al. 2022

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“…Previously, the influence of different types of molybdenum sources, namely, (NH 4 ) 3 PMo 12 O 40 , MoO 3 , H 2 MoO 4 and (NH 4 ) 6 Mo 7 O 24 , on the product yield was studied, and the latter was the most suitable for obtaining Cu/Mo compounds under DS conditions . Furthermore, the DS approach has been applied successfully to obtain hybrid compounds based on POMs containing vanadium , .…”

Section: Resultsmentioning

confidence: 99%

“…Our recent studies have shown the feasibility and efficiency of the so‐called “direct synthesis” (DS) approach, which uses the oxidative dissolution of a metal powder to obtain new heterometallic compounds based on the oxoanions incorporating group 5 and 6 transition metals . One of the intrinsic features of the DS approach is that it allows the use of ammonium salts or metal oxides as sources of V and Mo; therefore, counteranions are absent in the precursor compounds.…”

Section: Introductionmentioning

confidence: 99%

Diversity of Polyoxometalate‐Based Copper Compounds Obtained from the Same Reaction System

et al. 2016

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Two simple pathways using metallic copper or copper salts are proposed for the synthesis of hybrid compounds under mild conditions. A variety of Strandberg-and mixedmetal Keggin-based products, namely, (NH 4 ) 5n {[Cu(en) 2 ]-[PMo 8 V 4 O 40 ]} n ·9nH 2 O (1), (NH 4 ) 4n {[Cu(en)(H 2 O)][P 2 Mo 5 O 23 ]} n · 3.5nH 2 O (2), (NH 4 ) 7 [PMo 8 V 4 O 40 ]·17H 2 O (3) and (NH 4 ) 2n -{[Cu(en) 2 ][Cu(en)(H 2 O)][P 2 Mo 5 O 23 ]} n ·3nH 2 O (4), were isolated upon the variation of the composition of the reaction system. A rare four-substituted [PMo 8 V 4 O 40 ] 7-Keggin anion was obtained. The influence of the vanadium source [V 2 O 5 , NH 4 VO 3 or [a]

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“…This review focuses on selected studies of so-called chelate formations. Investigations of chelate formations possessing either hydrogen or metal atoms, "caught by chelate", have attracted much interest of chemists and biochemists [1][2][3][4][5]. It is necessary to stress that studies of chelate formations are important in the modeling of new catalysts [6][7][8][9][10].…”

Section: Introductionmentioning

confidence: 99%

Intramolecular Hydrogen Bonds in Selected Aromatic Compounds: Recent Developments

et al. 2019

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A review of intramolecular hydrogen bonding in ortho-hydroxyaryl Schiff bases, ortho-hydroxyaryl Mannich bases, dipyrrins, ortho-hydroxyaryl ketones, ortho-hydroxyaryl amides, and 4-Bora-3a,4a-diaza-s-indacene (BODIPY) dyes with tautomeric sensors as substituents is presented in this paper. Ortho-hydroxy Schiff and Mannich base derivatives are known as model molecules for analysing the properties of intramolecular hydrogen bonding. The compounds under discussion possess physicochemical features modulated by the presence of strong intramolecular hydrogen bonds. The equilibrium between intra-and inter-molecular hydrogen bonds in BODIPY is discussed. Therefore, the summary can serve as a knowledge compendium of the influence of the hydrogen bond on the molecular properties of aromatic compounds.

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Direct synthesis of heterometallic Cu/Mo complexes with aromatic chelating N,N-donating ligands

Cited by 9 publications

References 29 publications

Hybrid Cu-Containing Compounds Based on Lacunary Strandberg Anions: Synthesis under Mild Conditions, Crystal Structure, and Magnetic Properties

Hybrid Cu-Containing Compounds Based on Lacunary Strandberg Anions: Synthesis under Mild Conditions, Crystal Structure, and Magnetic Properties

Diversity of Polyoxometalate‐Based Copper Compounds Obtained from the Same Reaction System

Intramolecular Hydrogen Bonds in Selected Aromatic Compounds: Recent Developments

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