Strong closed-shell interactions in inorganic chemistry

Article Abstract:

Neutral closed-shell molecules and atoms will stick to anything, with interactions especially strong for compounds with heavier elements. Bonding can be due to strong ionic properties or bridging atoms where they exist, although the attraction can be attributed to correlation effects if other bonding contributions are not apparent. The closed-shell attraction is extended by up to 30% by spin-orbit and scalar relativistic effects. Cation interactions have been demonstrated for organometallic and inorganic compounds, with the bonds similar in strength to typical hydrogen bonds. Van der Waals, ionic and covalent bonding does not occur in pure form and correlation effects such as the van der Waals attraction must be taken into account.

Observations, Chemical bonds

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Polyoxometalates: very large clusters - nanoscale magnets

Article Abstract:

Large polyoxometalates (POMs) have been found to be composed of inorganic compounds that cannot be matched in terms of molecular and electronic structural versatility, reactivity and relevance to analytic chemistry, catalysis, biology, medicine, geochemistry, materials science and topology. Despite the size and the complexity of its structure, inorganic chemists have only to study its elementary blocks and their derivatives to undesrtand its structural chemistry.

Coordination compounds

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High-resolution X-ray emission and X-ray absorption spectroscopy

Article Abstract:

Research has been conducted on the high-resolution X-ray emission and X-ray absorption spectroscopy. The X-ray absorption process has been discussed in understanding the high-resolution and the resonant X-ray emissions.

Netherlands, Statistical Data Included, Analysis, Usage, X-ray spectroscopy, Absorption, Emission spectroscopy, Atomic emission spectroscopy

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