In this paper, the possible interactions between cisplatin Cl2H6N2Pt as an anticancer drug and gallium nitride (Ga12N12) nanocage have been investigated using DFT/b3lyp/lanl2dz(d,p) level of theory. Three different orientations were used to mimic adsorbed on Ga12N12. To investigate interaction mechanism two components, adsorption energies thermodynamic parameters, electronic properties such orb...

In this study, the Schiff base 4-(((1H-imidazol-2-yl)methylene)amino)phenol (3) has been synthesized and structure of compound was characterized by elemental analysis, FTIR, 1H NMR, 13C NMR UV-Vis spectroscopic techniques. Correlation theoretical experimental spectroscopy data examined. The acidity constant calculated using PM6 method in MOPAC2012 program at gas liquid phases 25 °C. Basically c...

(E,E)-1,4-bis(4'-aminostyryl)-2,5-bis(octyloxy)-benzene (6) and its derivative (E,E)-1,4-bis(4'-acetamidostyryl)-2,5-bis(octyloxy)-benzene (7) were synthesized and characterized after alkylation, bromomethylation, Horner-Emmons reaction and reduction from hydroquinone. In order to gain more molecular electronic data, HOMO and LUMO of compound 6 have been calculated by Gaussian 03 W.

Oxasmaragdyrin boron complexes were prepared and applied in DSSCs. The HOMO-LUMO energy gap analyses and theoretical calculations revealed that these expanded porphyrins are ideal sensitizers for DSSCs. A device containing oxasmaragdyrin-BF2 as the sensitizer achieves an energy conversion efficiency of 5.7%.

For employing computational tools for drug discovery in the area of medicinal chemistry by carbohydrates, methyl α-D-glucopyranoside and its ten acylated derivatives have picked up. At first, HOMO, LUMO, energy gap been obtained DFT method, as well chemical reactivity global descriptors, such softness, electron affinity, ionization potential, electronegativity, hardness, electrophilicity index...

We have developed a chemical way of thinking about electron transport in molecules in terms of frontier orbital theory [1-4]. The phase and amplitude of the HOMO and LUMO of πconjugated molecules determine the essential properties of their electron transport. By considering a close relationship between Green’s function and the molecular orbital, we derived an orbital rule that would help our ch...

Elaborate and exhaustive first principles calculations were carried out to screen the novel properties of a series of acene fused buckybowls. The acene fused compounds exhibit hole transport property due to their higher electron injection and lower hole transport barrier relative to the work function potential of Au electrodes. The higher HOMO and lower LUMO energy levels suggest lower hole and...

We use time-dependent density functional theory and time-dependent ZINDO (a semi-empirical method) to study transfer of an extra electron between a pair of pentacene molecules. A measure of the electronic transfer integral is computed in a dynamic picture via the vertical excitation energy from a delocalized anionic ground state. With increasing dimer separation, this dynamical measurement of c...

A reactivity model for concerted cycloaddition reactions is presented which allows a systematization of substituent effects. The treatment is based on the frontier electron theory of Fukui. The consideration of the energy separations of HOMOs (Highest Occupied Molecular Orbitals) and LUMOs (Lowest Unoccupied Molecular Orbitals) leads to three reactivity types in these cycloadditions. For the Di...

The central component of the programmable molecular switch recently demonstrated by Stoddart and Heath is [2]rotaxane, which consists of a cyclobis(paraquat-p-phenylene) shuttle (CBPQT(4+))(PF(6)(-))(4) (the ring) encircling a finger and moving between two stations, tetrathiafulvalene (TTF) and 1,5-dioxynaphthalene (DNP). As a step toward understanding the mechanism of this switch, we report he...