کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
9746755 1492407 2005 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Photodissociation of M+(benzene)x complexes (M = Ti, V, Ni) at 355 nm
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی آنالیزی یا شیمی تجزیه
پیش نمایش صفحه اول مقاله
Photodissociation of M+(benzene)x complexes (M = Ti, V, Ni) at 355 nm
چکیده انگلیسی
Transition metal cation-benzene complexes of the form M+(C6H6)1-7 (M = Ti, V, Ni) are produced in a laser vaporization pulsed nozzle cluster source. The clusters are mass selected and photodissociated using the third harmonic of a Nd:YAG laser (355 nm). Ti+(C6H6) fragments via ligand decomposition to produce Ti+C4H2, Ti+C2H2, and Ti+. V+(C6H6) fragments by ligand elimination of neutral benzene to give V+ as the primary fragment. Ni+(C6H6) fragments via both ligand elimination and a photoinduced charge transfer pathway to give benzene cation. Complexes with two benzene ligands fragment by the loss of a single neutral benzene to leave M+(C6H6) as the fragment. Clusters with more than two benzenes fragment directly down to M+(C6H6)2 with a small amount of M+(C6H6) for M = Ti and Ni. This indicates that a stable sandwich core is established at M+(C6H6)2 that is solvated by subsequent benzenes. There is no evidence for three-fold coordination in any of these complexes.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Mass Spectrometry - Volume 241, Issues 2–3, 1 March 2005, Pages 165-171
نویسندگان
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