probenerИзвестия высших учебных заведений. ПРОБЛЕМЫ ЭНЕРГЕТИКИPower engineering: research, equipment, technology1998-99032658-5456Kazan State Power Engineering University10.30724/1998-9903-2018-20-5-6-118-128probener-628Research ArticleФИЗИКАPHYSICSТОПОЛОГИЧЕСКИЕ ОСОБЕННОСТИ РАСПРЕДЕЛЕНИЯ ЭЛЕКТРОННОЙ ПЛОТНОСТИ В КОВЕЛЛИНЕ: ПОЛОЖЕНИЕ Cu1TOPOLOGICAL FEATURES OF THE ELECTRON DENSITY DISTRIBUTION IN COVELLITE: POSITION Cu1.ПогорельцевА. И.PogoreltsevA. I.

Погорельцев Александр Ильич – канд. физ.-мат. наук, доцент кафедры «Физика».

 

Alexander I. Pogoreltsev ‒ Candidate of Physics and Mathematics, Associate Professor, Department of Physics. 

Kazan.

apogoreltsev@rambler.ruМатухинВ. Л.MatukhinV. L.

Матухин Вадим Леонидович – д-р физ.-мат. наук, профессор, заведующий кафедрой «Физика». 

Казань.

Vadim L. Matukhin ‒ dr. Sci.(Phys.-Math.), head. Chair, Department of Physics. 

Kazan.

СафоноваО. А.SafonovaO. A.

Сафонова Ольга Александровна – студент кафедры «Релейная защита и автоматизация элекроэнергетических систем» (РЗА).

Казань.

Olga A. Safonova ‒ student, department "Relay protection and automation of power systems". 

Kazan.

ШариповаА. Р.SharipovaA. R.

Шарипова Алия Рустемовна – студент кафедры «Релейная защита и автоматизация элекроэнергетических систем» (РЗА).

Казань.

Aliya R. Sharipova ‒ student, department "Relay protection and automation of electric power systems". 

Kazan.

ИсламоваГ. Н.IslamovaG. N.

Исламова Гульчачак Назимовна – студент кафедры «Энергообеспечение предприятий и энергоресурсосберегающих технологий» (ЭЭ).

Казань.

Gulchachak N. Islamova ‒ student, department "Energy supply of enterprises and energy-saving technologies". 

Kazan.

ШмидтЕ. В.ShmidtE. V.

Шмидт Екатерина Вадимовна – канд. физ.-мат. наук, доцент кафедры «Физика».

Казань.

Ekaterina V . Shmidt ‒ Can. Sci. (Phys.-Math.), Associate Professor, Chair "Physics". 

Kazan.

 

ШульгинД. А.ShulginD. A.

Шульгин Дмитрий Анатольевич – канд. физ.-мат. наук, доцент, научный консультант центра коллективного пользования «Прикладные нанотехнологии».

Казань.

Dmitry A. Shulgin ‒ Cand. Sci. (Phys.-Math.), Associate Professor, Scientific Consultant of the Center for Collective Use "Applied Nanotechnologies". 

Kazan.

Казанский государственный энергетический университет.РоссияKazan State Power Engineering University.Russian FederationКазанский национальный исследовательский технический университет им. А.Н. Туполева ‒ КАИ.РоссияEducation Kazan National Research Technical University named after A.N. Tupolev ‒ KAI.Russian Federation201805082018205-6118128Copyright © Погорельцев А.И., Матухин В.Л., Сафонова О.А., Шарипова А.Р., Исламова Г.Н., Шмидт Е.В., Шульгин Д.А., 20182018Погорельцев А.И., Матухин В.Л., Сафонова О.А., Шарипова А.Р., Исламова Г.Н., Шмидт Е.В., Шульгин Д.А.Pogoreltsev A.I., Matukhin V.L., Safonova O.A., Sharipova A.R., Islamova G.N., Shmidt E.V., Shulgin D.A.Данная работа распространяется под лицензией Creative Commons Attribution 4.0.This work is licensed under a Creative Commons Attribution 4.0 License.https://www.energyret.ru/jour/article/view/628

Синтезированный образец ковеллина был исследован методами ЯКР 63,65Cu. Экспериментально определенные значения квадрупольной частоты νQ и параметра асимметрии η были использованы для изучения распределения электронной плотности в области квадрупольных ядер в положении Cu1. Обнаружено, что связь Cu-S в положении Cu1 является ионной, а щель LUMO-HOMO уменьшается с повышением температуры.

The synthesized sample of covellite was investigated by NQR 63,65Cu methods. The experimentally determined values of the quadrupole frequency νQ and the asymmetry parameter η have been used to study the distribution of electron density in the region of the quadrupole nuclei in position Cu1. It is found that Cu-S bond in position Cu1 is ionic, and the gap LUMO-HOMO decreases with increasing temperature.

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The authors declare that there are no conflicts of interest present.