Dispersion-stabilized hydrocarbon oligomers and their potential for nanospintronics
Spectral, thermal and electronic properties of a new class of hydrocarbon-based materials diamondoid oligomers was investigated. The methods for the selective functionalization of lower and higher diamondoids were developed. Methods of association lower diamondoids in lower oligomers have been developed. X-ray diffraction and thermogravimetric spectra of lower diamondoid oligomers were made. We propose a model that adequately accounts the effects of dispersion interactions in diamondoid oligomers for their physicochemical characteristics. The methods of synthesis of lower diamondoids oligomers were developed. Photoelectron spectra and X-ray absorption spectra of the oligomers were made. Effective methods for synthesys of symmetric and asymmetric oligomers higher diamondoidov that combine relaxed carbon-carbon bonds with numerous intramolecular van der Waals interactions between the hydrogen atoms diamondoidnyh skeletons were proposed. The methods of synthesis of functional derivatives of higher oligomers diamondoids were created to study their properties on the surfaces of materials as promising compounds for nanospintronics and nanoelectronics. The experimental and calculated data structure and energetics of higher oligomers diamondoids was made. A comparison of the different bases of computer simulation that can adequately take into account the dispersion interactions derived molecules wad done. The physicochemical properties of the compounds was made. The concept of the relative contributions of strong and weak interactions in the energy of individual molecules was created.