Mössbauer study of the substituent effect in iron (III)‐complexes of nuclear substituted benzohydroxamic acids

Abstract

A series of Tris-(hydroxamate)-tri-aqua complexes of iron (Ill) with benzohydroxamic and nuclear substituted benzohydroxamic acid derivatives as ligands were investigated by Mtissbauer spectroscopy. The substitutions changed the electron density on the donor atoms of the legend moiety by their electrphelic and \ or nucleophelic nature and changed the symmetry of the complexes by their differential space requirements. Both the effects are reflected in the isomer shifts as well as the quadrupole splitting values.

Towards the Possibility of Additive Manufacturing of XNA-Based Devices Using Molecular Engineering Principles

“…The operation scale of NA molecular engineering ranges from molecular level to mesoscale level. As an example of its operation at the molecular level, several positions can be listed: a) structural or conformational re-engineering of native nucleic acids -such as Z-DNA, DNA triplexes, and quadruplexes [13][14][15][16][17]; b) epigenetics-based (for example -alkylation [18]) engineering, assisted by QSAR, and other types of molecular modification of nucleic acids, based on quantitative structureactivity relationships (QSAR) and quantitative structure-property relationships (QSPR) [19][20][21][22][23][24][25][26][27]; c) xenonucleic acid engineering [28][29][30][31][32][33]; d) molecular imprinting and cross-recognition with DNA [34][35][36][37][38] or RNA [39,40], including molecular imprinting in templating processes [41]. e) design of supramolecular bioinorganic NA-based structures [42][43][44][45] and nanomaterials based on such structures [46,47], including planar and layered ones [48,49]; Examples of the transition to the supramolecular level of structure formation within the framework of DNA-mediated organo-inorganic templating include: f) template-directed nucleation and growth of inorganic nanostructures / microstructures [50,…”