{"product_id":"beyond-born-oppenheimer-theories-on-molecular-processes-9781805247555","title":"Beyond born oppenheimer theories on molecular processes","description":"\u003cp\u003eBorn-Oppenheimer (BO) theory and its treatment for solving molecular Schr]odinger Equation\u003c\/p\u003e\u003cp\u003e(SE), as proposed1 in 1927 and later on with Huang2 in 1954, has been the cornerstone\u003c\/p\u003e\u003cp\u003eof our understanding of chemical processes employing quantum chemistry. The triumph\u003c\/p\u003e\u003cp\u003eof BO treatment lies on the huge mass difference of electrons and nuclei allowing us to\u003c\/p\u003e\u003cp\u003eseparate their motions while studying molecular quantum mechanics. The approximation\u003c\/p\u003e\u003cp\u003eallows us to study the electron dynamics which parametrically depends on the nuclear\u003c\/p\u003e\u003cp\u003epositions. In the limiting situation of such mass differences (me MN), the BO\u003c\/p\u003e\u003cp\u003eapproximation could able to describe some of the chemical processes satisfactorily that\u003c\/p\u003e\u003cp\u003emainly occur at lower energy regimes of ground electronic state. However, nature exhibits\u003c\/p\u003e\u003cp\u003ea whole range of molecular phenomena where we observe a violation of such a\u003c\/p\u003e\u003cp\u003e'celebrated' approximation. These situations arise whenever electronic and nuclear motion\u003c\/p\u003e\u003cp\u003egets coupled owing to different reasons that leads to what is known as nonadiabatic\u003c\/p\u003e\u003cp\u003eevents. Simplest instances are photosynthesis, vision, charge transfer chemical reactions, \u003c\/p\u003e\u003cp\u003esolar energy conversion and photochemical reactions, all of which involve electronically\u003c\/p\u003e\u003cp\u003eexcited states and thus, cannot be fully accounted for if considered solely from a BO per-spective. Owing to such range of nonadiabatic phenomena, failure of BO approximation\u003c\/p\u003e\u003cp\u003eis encountered quite often in nature rather than rarely.\u003c\/p\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eAuthor:\u003c\/b\u003e Mukherjee Bijit\u003cbr\u003e\u003cb\u003ePublisher:\u003c\/b\u003e Independent Author\u003cbr\u003e\u003cb\u003ePublished:\u003c\/b\u003e 03\/14\/2023\u003cbr\u003e\u003cb\u003ePages:\u003c\/b\u003e 202\u003cbr\u003e\u003cb\u003eBinding Type:\u003c\/b\u003e Paperback\u003cbr\u003e\u003cb\u003eWeight:\u003c\/b\u003e 0.67lbs\u003cbr\u003e\u003cb\u003eSize:\u003c\/b\u003e 9.00h x 6.00w x 0.46d\u003cbr\u003e\u003cb\u003eISBN:\u003c\/b\u003e 9781805247555","brand":"Independent Author","offers":[{"title":"Paperback","offer_id":40828208087155,"sku":"9.78181E+12","price":35.95,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0555\/9255\/0515\/products\/img_a2ba86a2-6ae9-4f46-b622-684812ec483f.jpg?v=1684327303","url":"https:\/\/bookstorenmore.com\/en-de\/products\/beyond-born-oppenheimer-theories-on-molecular-processes-9781805247555","provider":"Bookstore N More","version":"1.0","type":"link"}