PPT-Infrared Spectroscopy of New Molecules and Clusters

F UDAN U NIVERSITY Mingfei Zhou 周鸣飞 Department of Chemistry Fudan University 复旦大学化学系激光化学研究所 72 th International Symposium on Molecular Spectroscopy. User Spectra 1cm 5000 6000 7000 8000 9000 025 000 025 050 075 100048 Ethanol 96 139492 Ethanol absolut 021687 Triethanolamin Isoprop 119866 Propylenglykol 140273 Triethylcitrat Citroflex 2 Example spectra Kombin CH 1O NH OH 1O CH 2O Advantages Liqu Infrared Absorbance. IR- Empirical Comparisons. Identifying functional groups in organic molecules. Region of infrared that is most useful lies between. 2.5-16 . m. m (4000-625 cm. -1. ). depends on transitions between vibrational . Keywords. : infrared, radiation, absorption. , spectroscopy. • State that absorption of infrared radiation causes covalent bonds to vibrate.. • Identify absorption peaks in an infrared spectrum.. Seda Yerli 20824388. Serap . Sunatepe. 20824245. Gonca Çalışkan 20823894 . Beytepe. ,Ankara. 12.04.2012. OUTLINE. History. of IR . Radiation. . and. FTIR. General . Information. . about. IR . Molecular Vibrations . Electromagnetic Radiation: Light, Energy, Heat. IR Tutor:. . http://chemistry.beloit.edu/Warming/pages/infrared.html. What do the sun’s energy, a molecule’s shape and a TV remote have to do with greenhouse gases?. CHE 6416. Michael Evans. 1. How does Microwave relate to other spectroscopies. Different types of motion. Translational. Vibrational. Rotational.. 2. What is Microwave Spectroscopy?. Microwave stimulates Rotational translations. 11-5. IR spectroscopy. . measures the vibrational excitation of atoms around the bonds that connect them.. The positions of the absorption lines are related to the types of functional groups present.. International Symposium on Molecular Spectroscopy. J. Philipp Wagner. , David C. McDonald II,. Anne B. McCoy and Michael A. Duncan. Jun 20, 2017. Department of Chemistry. University of Georgia. Athens, Georgia 30602. 2. C. DANIEL WITSCH, VOLKER LUTTER, GUIDO W. FUCHS, . THOMAS GIESEN. Institute of Physics, University of Kassel, Germany. JÜRGEN GAUSS,. Institut. . für. . Physikalische. . Chemie. , Universität Mainz, Germany. Introduction . to Spectroscopy. Spectroscopy involves an interaction between matter and light . (EMR). Light can be thought of as waves of energy or packets (particles) of energy called photons. Properties of light waves include wavelength and frequency. #10 Signals from Within. [8:55-20:29]. Infrared Spectroscopy. http. ://www.learner.org/resources/series61.html. region of infrared that is most useful lies between. 2.5-16 . m. m (4000-625 cm. -1. ). Spectroscopy . . Is the interaction between matter and electromagnetic radiation (light). . Spectroscopy is commonly used in chemistry to detect, identify, and quantify information about different atoms and molecules. 1 IR-Spectroscopy IR region The part of electromagnetic radiation between the visible and microwave regions 0.8  m to 50  m ( 12,500 cm -1 - 200 cm -1 ) is called IR region Most interested region in Infrared Spectroscopy is between 2.5 Spectroscopy & Structure. All spectroscopic techniques are used in two ways:. To prove that two compounds are identical. A compound’s spectra are unique to that compound. To help establish the structure of a new compound.