کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7832618 | 1503299 | 2006 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Ordered Self-assembled Monolayers of β-dicarbonyl Derivatives Studied by STM
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی تئوریک و عملی
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چکیده انگلیسی
The adsorption of four β-dicarbonyl derivatives on highly oriented pyrolytic graphite (HOPG) surface was studied by scanning tunneling microscopy (STM) in an ambient environment. All the molecules include a Ï-conjugated part and alkyl chains in their chemical structures. The molecules were dissolved in toluene solvent and a drop of the solution was deposited on HOPG to form self-assembled adlayers. The characteristic stripe-like structure in the self-assembled monolayers (SAMs) on the high-resolution STM images of the compounds was observed. Different molecular structures led to different SAMs. It was found that noncovalent interactions such as hydrogen bonds and dipole-dipole interactions played an important role in the formation of different SAMs.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Acta Physico-Chimica Sinica - Volume 22, Issue 6, June 2006, Pages 691-695
Journal: Acta Physico-Chimica Sinica - Volume 22, Issue 6, June 2006, Pages 691-695
نویسندگان
Yuxia Diao, Dirk Rohde, Lijun Wan,