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 (MÂ =Â Ti, V, Ni) at 355Â nm
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی آنالیزی یا شیمی تجزیه
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چکیده انگلیسی
Transition metal cation-benzene complexes of the form M+(C6H6)1-7 (MÂ =Â 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 (355Â 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 MÂ =Â 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 2â3, 1 March 2005, Pages 165-171
Journal: International Journal of Mass Spectrometry - Volume 241, Issues 2â3, 1 March 2005, Pages 165-171
نویسندگان
T.D. Jaeger, M.A. Duncan,