Theoretical developments have gone hand in hand with developments in experimental methods, where the use of different forms of spectroscopy, such as infrared spectroscopy, microwave spectroscopy, EPR spectroscopy and NMR spectroscopy, is probably the most important 20th century development.
32.
Other helium hydride ions are known or have been studied theoretically ., which has been observed using microwave spectroscopy, has a calculated binding energy of 25.1 kJ / mol, while has a calculated binding energy of 0.42 kJ / mol.
33.
In 1950, he became a senior physicist at the Johns Hopkins University Applied Physics Lab ( APL ), where he continued his research on microwave spectroscopy, and, together with collaborators including Samuel Foner, Edward Cochran, and others, carried out pioneering research on trapping of free radicals.
34.
"' William A . Klemperer "'( born October 6, 1927 ) is a prominent and accomplished nonbonding interactions between atoms and molecules through development of the microwave spectroscopy of van der Waals molecules formed in supersonic expansions, pioneering astrochemistry, including developing the first gas phase chemical models of cold molecular clouds that predicted an abundance of the molecular HCO + molecular ion that was later confirmed by radio astronomy.
