{"product_id":"infrared-spectroscopy-of-methane-dimer-9786208170615","title":"Infrared Spectroscopy of Methane Dimer","description":"\u003cp\u003e • Author(s): A. M. Hamdan\u003cbr\u003e • Publisher: LAP Lambert Academic Publishing\u003cbr\u003e • Publisher Imprint: LAP Lambert Academic Publishing\u003cbr\u003e • BISAC: Chemistry - General\u003c\/p\u003e\u003cp\u003eRotationally resolved infrared spectra of weakly bound Van der Waals methane dimercomplex (CH4)2 have been detected for the first time in the in the R (0) spectral region ofthe triply degenerate bending mode ν4 of methane monomer correlating with j = 1← 0transition of CH4. The dimer complexes were produced in a supersonic jet expansion andthe spectra were recorded by a tunable diode laser (TDL) spectrometer with 40 MHzspectral resolution. Methane dimer lines were confirmed by scanning the desiredwavelength regions with a mixture of 40% methane in Ar and He-Ne separately and thenexclude the CH4-Ar and CH4-Ne complexes reported in the literature. Many dimer linesare observed between 1290 and 1320 cm-1 spectral region, but the lines are found to bemore concentrated after the band center of the fundamental vibrational modeν4 of CH4monomer (1306.25 cm-1). The spectra exhibit well resolved R branch starting at 1309.5cm-1. The P and Q branches have been predicted and fitted along with R branch based onthe estimated position of these branches in the spectrum.\u003c\/p\u003e","brand":"Atlantic Books","offers":[{"title":"Paperback","offer_id":46395482144919,"sku":"9786208170615","price":5879.0,"currency_code":"INR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/3471\/1191\/files\/9786208170615.webp?v=1769033085","url":"https:\/\/atlanticbooks.com\/products\/infrared-spectroscopy-of-methane-dimer-9786208170615","provider":"Atlantic Books","version":"1.0","type":"link"}