Symmetry Breakings in the interactions of Molecular Hydrogen with Solids

The following conference report considers hydrogen gases with odd and even rotational quantum number as two separate gases, the ortho para varieties which do not interconvert in absence of a catalyst. physical catalysis is interpreted terms symmetry breakings introduced by solid to pass round peculiar selection rules molecular assigned Pauli Principle. catalytic effect presents striking reducing drastically interconversion time, longer than age universe for isolated molecules, few seconds or minutes when an sample (gaseous liquid) brought into contact efficient In present report, variety new optical electronic devices, measurements interpretations that have been reported since turning century are reviewed. New experiments on non-magnetic catalysts measuring conversion time scales one-ten turned upside down previous theory, established 1933, absolute necessity magnetic catalyst break o-p catalyzed reaction discussed molecules adsorbed electric surfaces, confining porous structures inside nanocages. concepts electromagnetic channels interpret these experimental renewals described how nuclei feel solid-molecule electron cloud complex. differentiate one another owing path followed configuration space reaction.