The uniqueness of physical and chemical natures of graphene: Their coherence and conflicts

Molecular-crystalline duality of graphene ensures a tight alliance of its physical and chemical natures, each of which is unique in its own way. The article examines the physical-chemical harmony and/or confrontation in terms of the molecular theory of graphene. Chemistry that is consistent with graphene physics expectations involves: small mass of carbon atoms, which provides a lightweight material; sp2 configuration of the atoms valence electrons, ensuring a flat two-dimensional structure of condensed benzenoid units; high strength of C£C valence bonds responsible for exclusive mechanical strength. Chemistry that is in conflict with graphene physics expectations covers: radical character of graphene material; collective character of electronic system of graphene, preventing from localization of its response on any external impact; the molecular nature and topochemical character of graphene mechanics; the molecular nature of graphene magnetism. Each of the properties is a direct consequence of the odd electron correlation, on one hand, and ensures a high instability of graphene material, on the other. Electron correlation inhibition by deposition of graphene monolayers on substrates is seen as a promising way to solve the problem. © 2014 Wiley Periodicals, Inc.

Авторы
Редакторы
-
Издательство
John Wiley and Sons Inc.
Номер выпуска
16
Язык
Английский
Страницы
1079-1095
Статус
Опубликовано
Подразделение
-
Номер
-
Том
114
Год
2014
Организации
  • 1 Department of Theoretical Physics and Mechanics, Peoples' Friendship University of Russia, Moscow 117198, Russian Federation
Ключевые слова
chemical modification; deformation; effectively unpaired electrons; electron correlation; graphene; molecular theory of grapheme; odd electrons
Дата создания
19.10.2018
Дата изменения
19.10.2018
Постоянная ссылка
https://repository.rudn.ru/ru/records/article/record/4924/