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Updated: Aug 4, 2026

Ultrafast Time-resolved Near-IR Stimulated Raman Measurements of Functional π-conjugate Systems
09:57

Ultrafast Time-resolved Near-IR Stimulated Raman Measurements of Functional π-conjugate Systems

Published on: February 10, 2020

モデルβシートヘアピンを水溶液で光学スペクトル検査する

Jovencio Hilario1, Jan Kubelka, Timothy A Keiderling

  • 1Department of Chemistry, University of Illinois at Chicago, 845 W. Taylor Street, Chicago, IL 60607-7061, USA.

Journal of the American Chemical Society
|June 19, 2003
PubMed
まとめ

特定の配列で設計されたベータヘアピンには,重要なベータシート構造が示されています. 顕微鏡データとシミュレーションにより,構造が確認され, (D) Pro-Glyはベータシート形成の強化のための優れた回転モチーフを証明しました.

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Spectrophotometry: Introduction01:16

Spectrophotometry: Introduction

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Infrared spectroscopy, also known as vibrational spectroscopy, is mainly used to determine the types of bonds and functional groups in molecules. In aldehydes and ketones, the carbonyl (C=O) bond shows an absorption around 1710 cm-1. The C=O bond vibration of an aldehyde occurs at lower frequencies than that of a ketone. In addition to the C=O absorption in an aldehyde, the aldehydic C–H bond also gives two peaks in the 2700–2800 cm-1 range. This absorption, coupled with the C=O stretching, is...
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IR and UV–Vis Spectroscopy of Carboxylic Acids

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