spectroscopy is the study of the interaction of molecules with electromagnetic radiation.
spectroscopy is the study of the interaction of molecules with electromagnetic radiation.
spectroscopy is the study of the interaction of molecules with?
electromagnetic radiation
instrumental chemistry









































instrumental analysis is a field of analytical chemistry that investigates analytes using scientific instruments.









































section::::spectroscopy.









































spectroscopy measures the interaction of the molecules with electromagnetic radiation. spectroscopy consists of many different applications such as atomic absorption spectroscopy, atomic emission spectroscopy, ultraviolet-visible spectroscopy, x-ray fluorescence spectroscopy, infrared spectroscopy, raman spectroscopy, nuclear magnetic resonance spectroscopy, photoemission spectroscopy, mössbauer spectroscopy, circular dichroism spectroscopy, and so on.









































section::::mass spectrometry.
instrumental chemistry
argon ionises at 15.76 ev, which is higher than hydrogen, but lower than helium, neon or fluorine. molecules containing argon can be van der waals molecules held together very weakly by london dispersion forces. ionic molecules can be bound by charge induced dipole interactions. with gold atoms there can be some covalent interaction. several boron-argon bonds with significant covalent interactions have been also reported. experimental methods used to study argon compounds have included inert gas matrices, infrared spectroscopy to study stretching and bending movements, microwave spectroscopy and far infrared to study rotation, and also visible and ultraviolet spectroscopy to study different electronic configurations including excimers. mass spectroscopy is used to study ions. computation methods have been used to theoretically compute molecule parameters, and predict new stable molecules. computational "ab initio" methods used have included ccsd(t), mp2 (møller–plesset perturbation theory of the second order), cis and cisd. for heavy atoms, effective core potentials are used to model the inner electrons, so that their contributions do not have to be individually computed. more powerful computers since the 1990s have made this kind of "in silico" study much more popular, being much less risky and simpler than an actual experiment. this article is mostly based on experimental or observational results.
argon compounds