{"product_id":"isotope-photochemistry-von-sasadhar-mahata-und-sourendra-k-bhattacharya","title":"Isotope Photochemistry","description":"\u003cp\u003eOxygen and carbon isotope fractionation associated  with products (CO and O2) of gas phase  photodissociation of CO2 have been studied using  photons from Hg lamp (184.9 nm) and Kr lamp (123.6  nm and 116.5 nm). In dissociation by Hg lamp  photons both CO and O2 are enriched in 17O by about  81 ¿ compared to the estimate based on a kinetic  model. Additionally, CO is enriched in 13C by about  37 ¿ relative to the model composition. In  contrast, in dissociation by higher energy Kr lamp  photons no such anomaly was found in O2. The  observed isotopic enrichments in case of Hg lamp  dissociation are proposed to be due to a hyperfine  interaction between nuclear spin and electron spins  or orbital motion causing enhanced dissociation of  isotopologues of CO2 containing 17O and 13C. The  17O enrichment is higher than that of 13C by a  factor of 2.2±0.2 which can be explained by the  known magnetic moment ratio of 17O and 13C due to  differing nuclear spins and g-factors. These  results have potential implications in studies of  the planetary atmospheres.\u003c\/p\u003e\u003cdiv class=\"aw-variant-hidden-subtitle-div\" id=\"aw-variant-subtitle-9783838361079\"\u003e\u003ch3\u003eMass independent isotope effect in photochemical reactions\u003c\/h3\u003e\u003c\/div\u003e","brand":"Autorenwelt Shop","offers":[{"title":"Softcover - 9783838361079","offer_id":39469248872541,"sku":"9783838361079","price":68.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/0622\/files\/720842da-581e-4efa-b601-87c62e4880ee.jpg?v=1774682434","url":"https:\/\/shop.autorenwelt.de\/en\/products\/isotope-photochemistry-von-sasadhar-mahata-und-sourendra-k-bhattacharya","provider":"Autorenwelt Shop","version":"1.0","type":"link"}