International Journal of New Chemistry

57-61

Authors: Sharzad Mehrara

In this report, using computational methods of quantum mechanical the study of structural, electronic and orbitals properties of Catapres on nanostructured fullerenes using software Gaussian 98 is done. At the first compounds were optimized, then NBO calculations have been done. The results indicate changes of energy levels HOMO & LUMO, dipole moments, bond distance of N61-C62, N61-C62 and N61-C62 and the ratio Core / charge of halogens. Interesting that in all cases studied listed the lowest values for each case to combine computing with fluorine substitute is concerned. All calculations is done in 6-31g* basis set in HF method and in gas phase.

69-73

Authors: Saeedeh Moghadasi

In this research at the Adenine tautomers and their fullerene derivatives were optimized. NBO calculations and NMR for the tautomers and their Fullerene derivatives were carried out at the B3lyp/6-31G*quantum chemistry level. The core and the valence electrons of atoms were compared. Other cases examined in this study, resonance energy, chemical potential (µ ), chemical hardness (η) , Energy Gap, Chemical Hardness, Chemical Potential, Dipole moment parameters between Adenine tautomers and their fullerene derivatives were calculated .This organic base as a chemical component of DNA and RNA plays an important role in our body. In this study of fullerenes, we used a nano carrier. The data in tables and graphs and shapes were compared and discussed.

79-86

Authors: Shohreh Nikandish

Tetryzoline(TH) is an adrenergic agent (vasoconstrictors) and derived from imidazoline. This compound is closely related to naphazoline hydrochloride in its pharmacological action. Nanotechnology has been used to provide advanced biomedical research tools in drug delivery. The fullerene family especially C60 derivatives have appealing photo-, electro-chemical and physical properties for biomedical applications. In this report, at the first Tetryzoline drug located on fullerene and halogen derivatives (in carbon position 69) [C60- Tetryzoline – C69-X] (X=F, Cl, Br) were optimized. Then the calculation of natural bond orbital was performed with the NBO technique. All calculations using Hartree- Fock the 6-31G * basis set using Gaussian 98 software and in gas phase has been done. The results showed that the energy levels of molecular orbitals (HOMO & LUMO) in the R-F have the lowest value. C69-F is shortest bond and most Strength. Comparison of the dipole moment of compounds shows this trend: R-F> R-Cl> R-Br.