You are currently viewing a new version of our website. To view the old version click .

Chemistry, Volume 7, Issue 2

April 2025 - 38 articles

Cover Story: Quinoidal structures contain a diradical character and possess characteristic electronic properties, including multiple redox systems and absorption bands in visible and near-infrared regions. Consequently, quinoids are significant structural motifs in organic materials, and considerable efforts have been made to develop synthetic methods for quinoid compounds. Dearomative cycloaddition is an effective approach for constructing quinoid compounds from readily available aromatic compounds. Herein, we report a photochemical dearomative cycloaddition of corannulene with an isolable dialkylsilylene (silicon analogue of carbene) to furnish a π-expanded o-quinodimethane derivative. We discuss the structure, electronic properties, and reactions of the product. View this paper
  • Issues are regarded as officially published after their release is announced to the table of contents alert mailing list .
  • You may sign up for email alerts to receive table of contents of newly released issues.
  • PDF is the official format for papers published in both, html and pdf forms. To view the papers in pdf format, click on the "PDF Full-text" link, and use the free Adobe Reader to open them.

Articles (38)

  • Communication
  • Open Access
746 Views
8 Pages

Carbon-based materials have garnered significant attention for electrocatalysis applications in fuel cells due to their unique structural and electronic properties, but rapid oxygen reduction reaction (ORR) at the cathode of fuel cells is challenging...

  • Article
  • Open Access
3 Citations
1,451 Views
24 Pages

Study on the Effect of Different Cathodic Protection Potentials on the Growth of Mixed Bacteria and Cathodic Protection Efficiency

  • Zeyu Zuo,
  • Jie Zhang,
  • Qingle Hou,
  • Chengjun Zhang,
  • Ke Wang,
  • Jizhou Duan,
  • Xilei Chen and
  • Baorong Hou

Microbiologically influenced corrosion (MIC) is one of the key causes of material failure in marine engineering, and sulfate-reducing bacteria (SRB) and iron-oxidizing bacteria (IOB) are typical representatives of anaerobic and aerobic microorganisms...

  • Article
  • Open Access
1 Citations
1,557 Views
10 Pages

Effect of Gamma Irradiation on Free Radicals and the Antioxidant Properties of Walnuts

  • Katerina Aleksieva,
  • Ralitsa Mladenova,
  • Sabina Taneva,
  • Petko Denev and
  • Yordanka Karakirova

The present work represented results from a comprehensive study of free radicals and the antioxidant properties of irradiated walnuts. The effects of gamma irradiation on free radical generation and their stability, as well as on the antioxidant acti...

  • Article
  • Open Access
2 Citations
4,684 Views
19 Pages

Thiol-Epoxy Click Chemistry: The Synthesis of Vicinal Amino Alcohols Containing a 1,2,4-Triazole Ring

  • Artyom V. Petrosyan,
  • Astghik A. Shahkhatuni,
  • Andranik M. Davinyan,
  • Karine S. Avetisyan,
  • Tariel V. Ghochikyan,
  • Melanya A. Samvelyan,
  • Valentine G. Nenajdenko and
  • Armen S. Galstyan

As examples of “Click Chemistry”, the reaction of 1-(oxiran-2-ylmethyl)piperidine with several 1,2,4-triazoles derivatives was studied. As a result, the reaction shows that the oxirane ring opens regiospecifically, according to Krasusky&r...

  • Article
  • Open Access
1,038 Views
17 Pages

Tetraanion of Tetracyclopentatetraphenylene Derivative: Global Versus Local Conjugation Modes

  • Hirokazu Miyoshi,
  • Ryosuke Sugiura,
  • Ryohei Kishi,
  • Atsuya Muranaka,
  • Masanobu Uchiyama,
  • Nagao Kobayashi,
  • Yutaka Ie,
  • Masayoshi Nakano and
  • Yoshito Tobe

Multiple reduced π-conjugated hydrocarbons exhibit π-electron conjugation modes different from neutral species due to the distinct number of electrons. Herein, we report the generation of a 32 π-electron tetraanion of a derivative of a doubl...

  • Communication
  • Open Access
1,348 Views
10 Pages

Metal-Free Synthesis of Benzimidazolinones via Oxidative Cyclization Under Hypervalent Iodine Catalysis

  • Mayu Hirashima,
  • Syotaro Hamatani,
  • Hirotaka Sasa,
  • Naoko Takenaga,
  • Tomonori Hanasaki and
  • Toshifumi Dohi

Benzimidazolinones exhibit unique biological activities and serve as building blocks in synthesizing pharmaceutical compounds. Although multiple synthetic approaches involving intermolecular cyclization reactions have been reported, intramolecular cy...

  • Article
  • Open Access
1,238 Views
14 Pages

Ultrasound-Assisted Synthesis of Microcrystalline Lanthanide Terephthalates: Insights into Morphology and Structural Properties

  • Yulia N. Toikka,
  • Polina B. Guseva,
  • Nikita A. Bogachev,
  • Stefaniia S. Kolesnik,
  • Nikita A. Glukhoedov,
  • Sergey N. Orlov,
  • Mikhail N. Ryazantsev,
  • Mikhail Yu. Skripkin and
  • Andrey S. Mereshchenko

Crystalline lanthanide terephthalates, Ln2bdc3‧nH2O (Ln = La–Lu, excluding Pm), were synthesized using a surfactant-free, ultrasound-assisted method. This approach yielded microcrystals with diverse shapes and sizes ranging from 2 to 10 &...

  • Article
  • Open Access
2 Citations
3,011 Views
14 Pages

A Post-Synthetic Modification Approach to Expand MIL-101-NH2 Functionalization

  • Alain Vigroux,
  • Christian Lherbet,
  • Isabelle Fabing,
  • Marie-Claire Barthélémy,
  • Christophe Laurent and
  • Pascal Hoffmann

Considering the importance of organic functionalization of MOFs, we here report a simple, tunable and efficient one-step post-modification procedure for introducing amino and carboxylic groups into the mesoporous metal–organic framework Al- and...

  • Article
  • Open Access
1 Citations
1,055 Views
16 Pages

In this work, we have considered the family of indenofluorene (IF) and its longitudinally elongated variants fluorenofluorene and diindenoanthracene and investigated their low-lying excited states and optical properties via quantum-chemical studies a...

  • Article
  • Open Access
1 Citations
1,066 Views
11 Pages

Fully Conjugated Heteroatomic Non- and Quasi-Alternant Polyradicals

  • Sergi Betkhoshvili,
  • Jordi Poater,
  • Ibério de P. R. Moreira and
  • Josep Maria Bofill

In this work, we present fully π-conjugated diradical(oid)s and tetraradical(oid)s with five-membered non-alternant cyclopentadienyl and quasi-alternant thiophene rings, the latter of which is used as a source of aromatic stabilization. By control...

of 4

Get Alerted

Add your email address to receive forthcoming issues of this journal.

XFacebookLinkedIn
Chemistry - ISSN 2624-8549