Whether life in a magnet is possible? Magnetochemistry of
Magnetic bracelets, the magnetized water... It is a lot of any speculation around the obvious fact - we live in the electromagnetic world. An electronic smog from power lines, TVs, mobile phones - everything you will not list a magnetic field of Earth, the Sun, magnetic storms, . Means, life is possible!
the magnetochemistry studies communication between magnetic and chemical properties of substances, influence of magnetic fields on chemical processes including in the person. In 1954 the American chemist L. Poling was conferred the Nobel Prize in the field of chemistry for the theory of a chemical bond (including for research of magnetic properties of hemoglobin).
Spin chemistry as the section of magnetochemistry, it is unique: it enters magnetic interactions into chemistry. Being negligible on energy, magnetic interactions control chemical reactionary ability and write new, magnetic “scenario“ of reaction.
Design of molecular magnetics - one of the new scientific directions of modern chemistry connected with synthesis of systems of high dimension. Today achievements of modern chemistry are that that chemists can put before themselves a most important task - to synthesize in soft conditions a finished product, say, a monocrystal, as integral macroobject, from initial molecular components at once. At the same time become it is equal significant both intramolecular, and intermolecular interactions and communications. And they have to be not some casual, and carrying out a certain functional loading. As a result from separate molecules the macroobject with a certain cooperative property which is inherent in the crystal nature has to turn out, i.e. to the macroensemble nature, but not separately taken molecule.
As as a result we receive a multispin molecule (each molecule contains not coupled electron - a spin tag) - it can be carried to spin chemistry. The macroproperties which are especially interesting us in this case, such as, say, magnetism - properties of a physical order. At this moment interests of chemistry and physics connect in whole.
In what feature of such connections consists? These are future materials, new components of element base of the future. Molecular magnetics possess a various combination of physical characteristics which for classical magnetic materials was difficult even to be presented. Today we learned to receive crystals of molecular magnetics which in comparison with classical magnetic materials extraordinary easy as their density is 5 - 7 times less. At the same time they can be optically transparent in visible and infrared areas of a range. And one more of features - they are, as a rule, dielectrics, i.e. do not demand any special insulating coverings at contact with electroconductive devices. Molecular magnetics can find appendices in the following areas: magnetic protection against low-frequency fields, the transformers and generators having the small weight, scientific instrument making, cryogenic equipment, information technologies, medicine, power.
A tomography (from Greek tomos - a layer) - a method of nondestructive layer-by-layer research of internal structure of object by means of its repeated raying electromagnetic radiation in various crossed directions which number reaches 10 - 10 6 .
In medicine thanks to high precision and relative harmlessness the proton magnetic resonance - a magnetic tomography on protons which is used even for research of a brain received application.
It is possible to esteem: Rakitin Yu. B. Modern magnetochemistry. SPb.: Science, 1994; Sokolsky Yu. M. Omagnichennaya water: truth and fiction. L.: Chemistry, 1990.