Posts tagged ‘Mukunda Ghimire’

Dr. Ghimire Co-Publishes in Dalton Transactions

Dr. Mukunda Ghimire, visiting assisting professor of chemistry, co-authored Brightly phosphorescent tetranuclear copper(l) pyrazolates in Dalton Transactions. The article discussed the synthesis and photophysics of tetranuclear copper complexes, {[3,5-(Pri)2,4-(Br)Pz]Cu}4 and {[3-(CF3),5-(But)Pz]Cu}4 tailor-designed by manipulating the pyrazolyl ring substituents. Unlike their trinuclear analogues, the luminescence of the tetranuclear species is molecular (not supramolecular) in nature with extremely high solid-state quantum yields of ∼80% at room temperature.

Dr. Ghimire Publishes in Inorganic Chemistry

Dr. Mukunda Ghimire, visiting assisting professor of chemistry, published Binary Donor-Acceptor Adducts of Tetrathiafulvalene Donors with Cyclic Trimetallic Monovalent Coinage Metal Acceptors in Inorganic Chemistry. In this collaborative research work with colleagues from Italy, Jordan, and Morocco, the authors have reported the comprehensive, both experimental and theoretical, investigations of monovalent coinage metal-based donor-acceptor integrated stacks as new class of supramolecular binary donor−acceptor adducts with potential applications in molecular electronic devices, including solar cells, magnetic switching devices, and field-effect transistors.

Dr. Mukunda M. Ghimire Co-Authors Article in Distinguished ACS Journal

Dr. Mukunda M. Ghimire, visiting assistant professor of chemistry, co-authored “Mechanistic Investigations of Photo-induced Oxygenation of Ru(II) Bis-bipyridyl Flavonolate Complexes,” in Inorganic Chemistry, an American Chemical Society publication. Dr. Ghimire, with his co-authors from Baylor University, Stephen F. Austin State University, and University of North Texas concluded:

 

A series of Ru(II) bis-bipyridyl flavonolate complexes undergo oxidative cleavage of the Ru-bound flavonol dependent on both light and oxygen. The complexes’ structures, photophysical and electrochemical properties, as well as their reactivity with oxygen were investigated in detail. Two distinct reaction product mixtures from 1,2- and 1,3-additions of oxygen are produced by illumination into distinct excitation/emission manifolds. The two manifolds are attributed to tautomeric biradicals, which predict the observed reactivity patterns.