Detail Conformationally Controlled Chemistry: Excited-State Dynamics   Oleh:  Kim, Myung Hwa ; Shen, Lei ; Tao, Hongli ; Martinez, Todd J. ; Suits, Arthur G. Jenis: Article from Bulletin/Magazine Dalam koleksi: SCIENCE (keterangan: ada di Proquest) vol. 315 no. 5818 (Mar. 2007), page 1561. Topik: Chemistry Ketersediaan Perpustakaan FK Nomor Panggil: S01.K.2007.03 Non-tandon: 1 (dapat dipinjam: 0) Tandon: tidak ada     Lihat Detail Induk Isi artikel Ion imaging reveals distinct photodissociation dynamics for propanal cations initially prepared in either the cis or gauche conformation, even though these isomers differ only slightly in energy and face a small interconversion barrier. The product kinetic energy distributions for the hydrogen atom elimination channels are bimodal, and the two peaks are readily assigned to propanoyl cation or hydroxyallyl cation coproducts. Ab initio multiple spawning dynamical calculations suggest that distinct ultrafast dynamics in the excited state deposit each conformer in isolated regions of the ground-state potential energy surface, and, from these distinct regions, conformer interconversion does not effectively compete with dissociation Opini Anda Klik untuk menuliskan opini Anda tentang koleksi ini! Kembali

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