Variable temperatures <sup>1</sup>H NMR technique on the kinetics and thermodynamic parameters of equilibrium between the Z and E isomers in a stable phosphorus ylide involving an imidazole

Aghdaei, Elham; Habibi‐Khorassani, Sayyed Mostafa; Shahraki, Mehdi

doi:10.1039/c6ra09758h

Cited by 8 publications

(1 citation statement)

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“…In previous works, we have investigated the kinetics of the syntheses of some new organic compounds such as phosphorus ylides, pyran derivatives, phosphonate esters, and so on, both experimentally and theoretically. [28][29][30][31][32][33][34][35][36][37][38] Experimental procedures suffer from various constraints, such as trapping the transition states (TSs) or intermediates, in corroborating the pathway through which the reactions proceed. Computational methods can construct the corroborating mechanisms effortlessly, inexpensively, and more exactly.…”

Section: Introductionmentioning

confidence: 99%

Insight into the Reaction Mechanism of α‐Amino Phosphonate Synthesis Using Succinic Acid as a Catalyst: Computational Kinetic Approach

Habibi‐Khorassani

Shahraki

Yaghoubian

2017

J Chinese Chemical Soc

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The reaction mechanism in the synthesis of particular α‐amino phosphonates from 4‐methyl benzaldehyde, aniline, and trimethyl phosphite in the presence of succinic acid is theoretically investigated. The profile of the potential energy surface is constructed at both HF/6‐31 + G(d,p) and B3LYP/6‐31 + G(d,p) levels of theory for evaluating all the steps involved in the reaction mechanism. In order to investigate the effect of the structure on reactivity, some para‐substituted benzaldehydes are subjected to kinetic examination. The overall reaction in the presence of electron‐withdrawing groups is thermodynamically much more favorable than in the presence of the electron‐donating groups; similarly, the reaction is kinetically more favorable and much easier in the presence of electron‐withdrawing groups. Moreover, step 2 (imine formation) is recognized as the rate‐determining step at both levels of theory. Also, step 1 is diffusion‐controlled with both electron‐withdrawing and electron‐donating groups, while the other steps are chemically controlled in the reaction mechanism.

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Section: Introductionmentioning

confidence: 99%

Insight into the Reaction Mechanism of α‐Amino Phosphonate Synthesis Using Succinic Acid as a Catalyst: Computational Kinetic Approach

Habibi‐Khorassani

Shahraki

Yaghoubian

2017

J Chinese Chemical Soc

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Magnetic Field‐Based Non‐Destructive Testing Techniques for Battery Diagnostics

Zhao,

Wan,

Lin

et al. 2024

Advanced Energy Materials

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With the widespread application of batteries in modern society, ensuring their safety and performance has become crucial. Traditional diagnostic methods, while providing valuable insights into battery performance, often require destructive sampling, making it difficult to achieve non‐destructive and real‐time monitoring. As a result, magnetic field‐based non‐destructive testing techniques, such as nuclear magnetic resonance (NMR), magnetic resonance imaging (MRI), and magnetic field imaging (MFI), have emerged as powerful tools for battery diagnostics. These techniques have garnered significant attention due to their non‐invasive nature and real‐time detection capabilities, allowing for the identification of defects and malfunctions under normal operating conditions without disassembling the battery or interrupting its use. This paper reviews recent advancements in the application of magnetic field‐based non‐destructive testing technologies for battery diagnostics, analyzing both their strengths and limitations. Through a comprehensive assessment of current research findings, this work provides researchers and engineers with a systematic reference to promote the application and development of magnetic field technologies in the battery field. Additionally, this review discusses the challenges and limitations encountered by magnetic field technologies in battery diagnostics and provides recommendations for their future development. The objective is to offer insights and foster continued innovation and advancement in this field.

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Advancements and future trends in nanostructured membrane technologies for seawater desalination

Adityawarman,

Lugito,

Kawi

et al. 2025

Desalination

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Variable temperatures ¹H NMR technique on the kinetics and thermodynamic parameters of equilibrium between the Z and E isomers in a stable phosphorus ylide involving an imidazole

Abstract: Analysis of 1H NMR spectra of a special ylide involving an imidazole at variable temperatures has been employed to study the kinetics of the interchangeable process in the equilibrium between the two Z- and E-isomers of a stable phosphorus ylide.

Cited by 8 publications

References 23 publications

Insight into the Reaction Mechanism of α‐Amino Phosphonate Synthesis Using Succinic Acid as a Catalyst: Computational Kinetic Approach

Insight into the Reaction Mechanism of α‐Amino Phosphonate Synthesis Using Succinic Acid as a Catalyst: Computational Kinetic Approach

Magnetic Field‐Based Non‐Destructive Testing Techniques for Battery Diagnostics

Advancements and future trends in nanostructured membrane technologies for seawater desalination

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Variable temperatures 1H NMR technique on the kinetics and thermodynamic parameters of equilibrium between the Z and E isomers in a stable phosphorus ylide involving an imidazole

Abstract: Analysis of 1H NMR spectra of a special ylide involving an imidazole at variable temperatures has been employed to study the kinetics of the interchangeable process in the equilibrium between the two Z- and E-isomers of a stable phosphorus ylide.

Cited by 8 publications

References 23 publications

Insight into the Reaction Mechanism of α‐Amino Phosphonate Synthesis Using Succinic Acid as a Catalyst: Computational Kinetic Approach

Insight into the Reaction Mechanism of α‐Amino Phosphonate Synthesis Using Succinic Acid as a Catalyst: Computational Kinetic Approach

Magnetic Field‐Based Non‐Destructive Testing Techniques for Battery Diagnostics

Advancements and future trends in nanostructured membrane technologies for seawater desalination

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Product

Resources

About

Variable temperatures ¹H NMR technique on the kinetics and thermodynamic parameters of equilibrium between the Z and E isomers in a stable phosphorus ylide involving an imidazole