FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W2005776449> ?p ?o ?g. }

• W2005776449 endingPage "3521" @default.
• W2005776449 startingPage "3507" @default.
• W2005776449 abstract "The endoergic reaction Hg+I2→HgI+I−1.15 eV has been studied by the crossed molecular beam technique over a range of average relative translational energy, ?tr, from 0.9 to 2.6 eV (c.m.). A supersonic seeded beam of Hg in H2, of variable Hg velocity, is crossed by a thermal beam of I2. In-plane angular distributions of the HgI product are measured as a function of ?tr, with an electron bombardment (EB) ionizer, mass filter detector. Center-of-mass (c.m.) product angular and recoil velocity distributions are deduced from the laboratory angular distributions by an iterative fitting procedure. The HgI angular distributions are bimodal, characteristic of a long-lived complex mechanism. The products’ recoil energy distribution is peaked at abnormally high E′tr. The average value, ?′tr, increases monotonically with ?tr. Reaction proceeds essentially at the thermodynamic threshold (i.e., with no intrinsic activation barrier), and the post-threshold excitation function is found to be of the form σR(Etr) ∝ (E−E0)s/Etr, where 1&lt;s&lt;2 and E0=1.15 eV. The reaction cross section σR(?tr) rises to a broad maximum at about 2 eV with a moderate decline at higher energies. A statistical–dynamical model of the reaction is developed which involves an orientation–averaged barrier (∼0.7 eV) to the formation of a long-lived complex, presumably IHgI, followed by decay of the complex, either to products or to reactants. The shape of the cross section function in the threshold region, the branching ratio for the decay of the complex, and the product translational energy distributions are strongly correlated with the existence of this barrier to complex formation. The decline in σR(?tr) at high energy is due to collision-induced dissociation of I2, and/or dissociation of product HgI molecules formed with internal excitation above 0.39 eV (the dissociation limit of HgI), both processes with a threshold of 1.54 eV. The statistical–dynamical calculations account for the main qualitative features of the reaction with a minimum number of assumptions. However, the present results are not entirely unequivocal because of a possible systematic experimental bias associated with decreased EB detection efficiency of internally excited HgI molecules." @default.
• W2005776449 created "2016-06-24" @default.
• W2005776449 creator A5000697060 @default.
• W2005776449 creator A5036874921 @default.
• W2005776449 creator A5064590882 @default.
• W2005776449 date "1977-10-15" @default.
• W2005776449 modified "2023-09-23" @default.
• W2005776449 title "Crossed molecular beam study of the endoergic reaction Hg+I₂→HgI+I from threshold to 2.6 eV (c.m.)" @default.
• W2005776449 cites W1521493173 @default.
• W2005776449 cites W1571837143 @default.
• W2005776449 cites W1648182644 @default.
• W2005776449 cites W1967306338 @default.
• W2005776449 cites W1967441190 @default.
• W2005776449 cites W1968309762 @default.
• W2005776449 cites W1972577740 @default.
• W2005776449 cites W1974817600 @default.
• W2005776449 cites W1977721616 @default.
• W2005776449 cites W1978398977 @default.
• W2005776449 cites W1980521802 @default.
• W2005776449 cites W1982056498 @default.
• W2005776449 cites W1985480904 @default.
• W2005776449 cites W1985620587 @default.
• W2005776449 cites W1989092838 @default.
• W2005776449 cites W1998056902 @default.
• W2005776449 cites W2003750902 @default.
• W2005776449 cites W2004585848 @default.
• W2005776449 cites W2007664090 @default.
• W2005776449 cites W2008480228 @default.
• W2005776449 cites W2009953044 @default.
• W2005776449 cites W2010394612 @default.
• W2005776449 cites W2012283559 @default.
• W2005776449 cites W2013219597 @default.
• W2005776449 cites W2014527509 @default.
• W2005776449 cites W2014614034 @default.
• W2005776449 cites W2016348142 @default.
• W2005776449 cites W2017763616 @default.
• W2005776449 cites W2021758092 @default.
• W2005776449 cites W2036852578 @default.
• W2005776449 cites W2038263790 @default.
• W2005776449 cites W2038527810 @default.
• W2005776449 cites W2038607126 @default.
• W2005776449 cites W2043402283 @default.
• W2005776449 cites W2047299210 @default.
• W2005776449 cites W2048264410 @default.
• W2005776449 cites W2050637179 @default.
• W2005776449 cites W2055299236 @default.
• W2005776449 cites W2057980421 @default.
• W2005776449 cites W2061312520 @default.
• W2005776449 cites W2065389970 @default.
• W2005776449 cites W2067197337 @default.
• W2005776449 cites W2068910705 @default.
• W2005776449 cites W2072181490 @default.
• W2005776449 cites W2072705911 @default.
• W2005776449 cites W2073954279 @default.
• W2005776449 cites W2081062639 @default.
• W2005776449 cites W2083740729 @default.
• W2005776449 cites W2084273468 @default.
• W2005776449 cites W2084595304 @default.
• W2005776449 cites W2085250708 @default.
• W2005776449 cites W2086687653 @default.
• W2005776449 cites W2089116038 @default.
• W2005776449 cites W2091971507 @default.
• W2005776449 cites W2093135107 @default.
• W2005776449 cites W2093853704 @default.
• W2005776449 cites W2095463339 @default.
• W2005776449 cites W2098251893 @default.
• W2005776449 cites W2149955703 @default.
• W2005776449 cites W2155361761 @default.
• W2005776449 cites W2316476890 @default.
• W2005776449 cites W2584288809 @default.
• W2005776449 cites W3004920365 @default.
• W2005776449 cites W3114288466 @default.
• W2005776449 doi "https://doi.org/10.1063/1.435348" @default.
• W2005776449 hasPublicationYear "1977" @default.
• W2005776449 type Work @default.
• W2005776449 sameAs 2005776449 @default.
• W2005776449 citedByCount "40" @default.
• W2005776449 countsByYear W20057764492017 @default.
• W2005776449 crossrefType "journal-article" @default.
• W2005776449 hasAuthorship W2005776449A5000697060 @default.
• W2005776449 hasAuthorship W2005776449A5036874921 @default.
• W2005776449 hasAuthorship W2005776449A5064590882 @default.
• W2005776449 hasConcept C113196181 @default.
• W2005776449 hasConcept C120665830 @default.
• W2005776449 hasConcept C121332964 @default.
• W2005776449 hasConcept C159985019 @default.
• W2005776449 hasConcept C168834538 @default.
• W2005776449 hasConcept C178790620 @default.
• W2005776449 hasConcept C184779094 @default.
• W2005776449 hasConcept C185592680 @default.
• W2005776449 hasConcept C192562407 @default.
• W2005776449 hasConcept C204323151 @default.
• W2005776449 hasConcept C206191943 @default.
• W2005776449 hasConcept C2776668124 @default.
• W2005776449 hasConcept C2776900694 @default.
• W2005776449 hasConcept C32909587 @default.
• W2005776449 hasConcept C43617362 @default.
• W2005776449 hasConcept C54419926 @default.

• next