C Cl bond activation with Pd(II)-NiO nanoparticles supported on zeolite-Y: The role of charge transfer transition

Sharma, Mukesh; Sharma, Mitu; Hazarika, Ankita; Satyanarayana, L.; Karunakar, Galla V.; Bania, Kusum K.

doi:10.1016/j.mcat.2017.02.023

Cited by 22 publications

(61 citation statements)

References 77 publications

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“…The XRD patterns confirmed the presence of high purity NiO NPs for calcination at 800°C for 2 h. The XRD patterns for 4a and 4b are indexed using standard patterns (ICDD card number: 01‐073‐1519) for NiO. [ 75,76 ] From the analysis of positions and relative intensities of the diffracted peaks, the high degree of crystallinity nature of NiO NPs with single phase cubic structure and space group Fm‐3m are confirmed.…”

Section: Resultsmentioning

confidence: 83%

Crystal exploring, Hirshfeld surface analysis, and properties of 4′‐(furan‐2‐yl)‐2,2′:6′,2″‐terpyridine complexes of nickel (II): New precursors for the synthesis of nanoparticles

Momeni

Anari

Torrei

et al. 2021

Applied Organom Chemis

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A series of mono‐ and bis‐terpyridine complexes of nickel (II) based on the 4′‐(furan‐2‐yl)‐2,2′:6′,2″‐terpyridine (ftpy) have been synthesized and structurally characterized using elemental analysis, infrared spectroscopy, and single crystal X‐ray diffraction. The reaction of NiCl2•6H2O with ftpy has been resulted in the formation of new bis‐terpyridine complex [Ni (ftpy)2](PF6)•2H2O (1). The new complex [Ni (ftpy)2](PF6)2 (2), obtained during the crystallization of 1 in methanol, was characterized using X‐ray crystallography, which shows that six nitrogen atoms from terpyridine ligands occupy the coordination sites around the Ni (II) in a distorted octahedral geometry. On the other hand, the reaction of NiCl2•6H2O with ftpy in a 1:2 or 1:1 mole ratio in methanol in the presence of KSCN affords two new thiocyanato complexes [Ni (ftpy)2](SCN)2•2H2O (3) and [Ni (ftpy)(NCS)2(H2O)]•2H2O (4), respectively. The crystal structure of 3 reveals that nickel (II) is hexa‐coordinated in a distorted octahedral geometry NiN6 involving six atoms of two ftpy ligand; the ftpy ligands are perpendicular to each other. The new complex [Ni (ftpy)(NCS)2(DMSO)]•DMSO (5) is obtained during the crystallization of 4 in DMSO. The crystal structure of 5 reveals that the nickel (II) is hexa‐coordinated by three nitrogen atoms of ftpy, two NCS−, a DMSO in a slightly distorted octahedral geometry. The X–H (XH, C, N, O) bond interactions control the arrangement of the supramolecular 3D framework. Hirshfeld surface analyses and two‐dimensional fingerprint plot reveal that the main interactions are H–H contacts for 2, 3, and 5, which comprise 34.1%, 37.2%, and 34.6%, respectively. Thermal decomposition of the coordination complexes led to the formation of Ni, NiO, and Ni2P2O7 nanoparticles (NPs). The resulting NPs were fully characterized by powder XRD, field emission scanning electron microscopy (FESEM), transmission electron microscope (TEM), and energy‐dispersive X‐ray spectroscopy (EDX). The formation of these NPs indicates the role of the precursor complexes and counterion. Our results indicate that the NPs with the smaller size could be obtained at calcination temperature of 600 °C. Thermal and luminescent properties of complexes have been discussed in detail.

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Section: Resultsmentioning

confidence: 83%

Crystal exploring, Hirshfeld surface analysis, and properties of 4′‐(furan‐2‐yl)‐2,2′:6′,2″‐terpyridine complexes of nickel (II): New precursors for the synthesis of nanoparticles

Momeni

Anari

Torrei

et al. 2021

Applied Organom Chemis

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“…Bania et al developed Pd-NiO nanoparticles formed over zeolite-NaY for Suzuki-Miyaura couplings of aryl chlorides in 2017. 10 The combination of the Pd-NiO/zeolite-NaY catalyst and microwave irradiation was able to accelerate the coupling reactions at 50 °C and provide the desired coupling products in good yields (82-92%) within 20 minutes (Scheme 2). Traditional heating conditions resulted in moderate product yields (42-48%) and a long reaction time (16 h).…”

Section: Microwave-assisted Coupling Reactions In Polar Solventsmentioning

confidence: 99%

Recent Advances in Metal-Nanoparticle-Catalyzed Coupling Reactions Assisted by Microwave Irradiation

Sako¹,

Arisawa²

2021

Synthesis

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“…The Pd-NiO species were predicted as "true catalyst" by cyclic voltammetry study. Whereas, NiO represents as an active surface for redox reaction to in situ generated Pd(0), which represents the active species for C-Cl bond activation step [83]. Though the reaction displayed high conversions of aryl chlorides, the generality of the reaction was demonstrated with a number of substrates.…”

Section: Suzuki Cross-coupling Reactionmentioning

confidence: 99%

Microwave-Assisted Palladium-Catalyzed Cross-Coupling Reactions: Generation of Carbon–Carbon Bond

Salih

Baqi

2019

Catalysts

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Cross-coupling reactions furnishing carbon–carbon (C–C) bond is one of the most challenging tasks in organic syntheses. The early developed reaction protocols by Negishi, Heck, Kumada, Sonogashira, Stille, Suzuki, and Hiyama, utilizing palladium or its salts as catalysis have, for decades, attracted and inspired researchers affiliated with academia and industry. Tremendous efforts have been paid to develop and achieve more sustainable reaction conditions, such as the reduction in energy consumption by applying the microwave irradiation technique. Chemical reactions under controlled microwave conditions dramatically reduce the reaction time and therefore resulting in increase in the yield of the desired product by minimizing the formation of side products. In this review, we mainly focus on the recent advances and applications of palladium catalyzed cross-coupling carbon–carbon bond formation under microwave technology.

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C Cl bond activation with Pd(II)-NiO nanoparticles supported on zeolite-Y: The role of charge transfer transition

Cited by 22 publications

References 77 publications

Crystal exploring, Hirshfeld surface analysis, and properties of 4′‐(furan‐2‐yl)‐2,2′:6′,2″‐terpyridine complexes of nickel (II): New precursors for the synthesis of nanoparticles

Crystal exploring, Hirshfeld surface analysis, and properties of 4′‐(furan‐2‐yl)‐2,2′:6′,2″‐terpyridine complexes of nickel (II): New precursors for the synthesis of nanoparticles

Recent Advances in Metal-Nanoparticle-Catalyzed Coupling Reactions Assisted by Microwave Irradiation

Microwave-Assisted Palladium-Catalyzed Cross-Coupling Reactions: Generation of Carbon–Carbon Bond

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