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9 Results Found

  • Article
  • Open Access
2 Citations
1,641 Views
21 Pages

Establishing the Thermodynamic Cards of Dipine Models’ Oxidative Metabolism on 21 Potential Elementary Steps

  • Guang-Bin Shen,
  • Shun-Hang Gao,
  • Yan-Wei Jia,
  • Xiao-Qing Zhu and
  • Bao-Chen Qian

5 August 2024

Dipines are a type of important antihypertensive drug as L-calcium channel blockers, whose core skeleton is the 1,4-dihydropyridine structure. Since the dihydropyridine ring is a key structural factor for biological activity, the thermodynamics of th...

  • Article
  • Open Access
976 Views
16 Pages

25 February 2025

Thermodynamic cards of three classic NADH models (XH), namely 1-benzyl-1,4-dihydronicotinamide (BNAH), Hantzsch ester (HEH), and 10-methyl-9,10-dihydroacridine (AcrH), as well as their photoexcited states (XH*: BNAH*, HEH*, AcrH*) releasing hydrides...

  • Article
  • Open Access
4 Citations
1,656 Views
11 Pages

7 April 2025

We address the scientific “time” concept in the context of more general relaxation processes toward the Wärmetod of thermodynamic equilibrium. More specifically, we sketch a construction of a conceptual ladder of chemical reaction st...

  • Article
  • Open Access
70 Citations
11,186 Views
26 Pages

All in Action

  • Arto Annila

19 November 2010

The principle of least action provides a holistic worldview in which Nature in its entirety and every detail is described in terms of actions. Each and every action is ultimately composed of one or multiple of the most elementary actions which relate...

  • Article
  • Open Access
3 Citations
4,696 Views
15 Pages

Kinetic Modeling of the Direct Dimethyl Ether (DME) Synthesis over Hybrid Multi-Site Catalysts

  • Antonio D’Ambrosio,
  • Alice Bertino,
  • Serena Todaro,
  • Mariarita Santoro,
  • Catia Cannilla,
  • Francesco Frusteri,
  • Giuseppe Bonura,
  • Leone Mazzeo and
  • Vincenzo Piemonte

13 January 2024

This paper deals with the proposition of a kinetic model for the direct synthesis of DME via CO2 hydrogenation in view of the necessary optimization of the catalytic system, reactor design, and process strategy. Despite the fact that DME synthesis is...

  • Article
  • Open Access
13 Citations
13,923 Views
14 Pages

1 March 2019

The most commonly applied industrial synthesis of 4,4′-methylene diphenyl diamine (4,4′-MDA), an important polyurethane intermediate, is the reaction of aniline and formaldehyde. Molecular understanding of the 4,4′-MDA formation can...

  • Article
  • Open Access
4 Citations
2,064 Views
18 Pages

The Homogeneous Gas-Phase Formation Mechanism of PCNs from Cross-Condensation of Phenoxy Radical with 2-CPR and 3-CPR: A Theoretical Mechanistic and Kinetic Study

  • Zhuochao Teng,
  • Yanan Han,
  • Shuming He,
  • Mohammad Hassan Hadizadeh,
  • Qi Zhang,
  • Xurong Bai,
  • Xiaotong Wang,
  • Yanhui Sun and
  • Fei Xu

Chlorophenols (CPs) and phenol are abundant in thermal and combustion procedures, such as stack gas production, industrial incinerators, metal reclamation, etc., which are key precursors for the formation of polychlorinated naphthalenes (PCNs). CPs a...

  • Article
  • Open Access
8 Citations
3,244 Views
15 Pages

10 May 2020

The research of the formation mechanism of iron carbides is significant to design the high-performance catalysts for the Fischer–Tropsch synthesis (FTS) process. In this paper, the effect of potassium promoter on the formation of atomic carbon...