Rotacioni molekulski spektri Rotacija molekula This project has

Rotacioni molekulski spektri Rotacija molekula ___________________________________________________ This project has been funded with support from the European Commission. This publication reflects the views only of the authors, and the Commission cannot be held responsible for any use which may be made of the information contained therein.

Rotacija molekula • ___________________________________________________ This project has been funded with support from the European Commission. This publication reflects the views only of the authors, and the Commission cannot be held responsible for any use which may be made of the information contained therein.

Rotacija molekula • Prema vrednosti glavnih momenata inercije, molekuli se dele na: • - linearne • - simetrične • - asimetrične • - sferne čigre ___________________________________________________ This project has been funded with support from the European Commission. This publication reflects the views only of the authors, and the Commission cannot be held responsible for any use which may be made of the information contained therein.

Rotacioni spektri • – nastaju kao posledica prelaza između rotacionih energetskih nivoa molekula datog vibracionog i elektronskog stanja. Rotacioni spektri su relativno jednostavni. Najprostiji su spektri dvoatomih molekula koji se sastoji od niza linija raspoređenih na približno jednakim rastojanjima (leže u dalekoj IC oblasti). ___________________________________________________ This project has been funded with support from the European Commission. This publication reflects the views only of the authors, and the Commission cannot be held responsible for any use which may be made of the information contained therein.

Rotacija dvoatomskog molekula ___________________________________________________ This project has been funded with support from the European Commission. This publication reflects the views only of the authors, and the Commission cannot be held responsible for any use which may be made of the information contained therein.

Primer rotacije molekula ___________________________________________________ This project has been funded with support from the European Commission. This publication reflects the views only of the authors, and the Commission cannot be held responsible for any use which may be made of the information contained therein.

Term molekula koji rotira ___________________________________________________ This project has been funded with support from the European Commission. This publication reflects the views only of the authors, and the Commission cannot be held responsible for any use which may be made of the information contained therein.

Rotacioni spektri sastoje se od velikog broja skoro ekvidistantnih linija koje se javljaju u dalekoj IC i MT oblasti spektra kao posledica prelaza između rotacionih energetskih nivoa osnovnog vibracionog i elektronskog stanja molekula. Najprostiji model za rotirajući dvoatomski molekul je model ručice. Sistem koji se sastoji od dve tačkaste mase m 1 i m 2 spojene šipkom bez mase dužine r. ___________________________________________________ This project has been funded with support from the European Commission. This publication reflects the views only of the authors, and the Commission cannot be held responsible for any use which may be made of the information contained therein.

Rotacioni spektri • Model ručice ___________________________________________________ This project has been funded with support from the European Commission. This publication reflects the views only of the authors, and the Commission cannot be held responsible for any use which may be made of the information contained therein.

Energija rotacije i rotacioni term • ___________________________________________________ This project has been funded with support from the European Commission. This publication reflects the views only of the authors, and the Commission cannot be held responsible for any use which may be made of the information contained therein.

Energija rotacije i rotacioni term • ___________________________________________________ This project has been funded with support from the European Commission. This publication reflects the views only of the authors, and the Commission cannot be held responsible for any use which may be made of the information contained therein.

Rotacioni energetski nivoi • Dajući kavntnom broju J niz vrednosti 0, 1, 2, 3 dobija se niz rotacionih nivoa: • za J = 0 F(J) = 0 • za J = 1 F(J) = 2 B • za J = 2 F(J) = 6 B ___________________________________________________ This project has been funded with support from the European Commission. This publication reflects the views only of the authors, and the Commission cannot be held responsible for any use which may be made of the information contained therein.

Rotacioni energetski nivoi • Rotacioni energetski nivoi dvoatomskog molekula kao krutog rotora ___________________________________________________ This project has been funded with support from the European Commission. This publication reflects the views only of the authors, and the Commission cannot be held responsible for any use which may be made of the information contained therein.

Rotacioni energetski nivoi • Dozviljeni prelazi između rotacionih nivoa dvoatomskog molekula kao krutog rotatora i odgovarajući spektar ___________________________________________________ This project has been funded with support from the European Commission. This publication reflects the views only of the authors, and the Commission cannot be held responsible for any use which may be made of the information contained therein.

Zaposednutost rotacionih nivoa i intenzitet rotacionih linija • Intenzitet rotacionih linija raste sa povećanjem kvantnog broja J do neke vrednosti, kada dostiže maksimum, posle opada daljim povećanjem. • Ako se posmatra apsorpcioni spektar hlorovodonika u dalekoj IC oblasti, primećuje se da su intenziteti pojedinih linija u spektru različiti. ___________________________________________________ This project has been funded with support from the European Commission. This publication reflects the views only of the authors, and the Commission cannot be held responsible for any use which may be made of the information contained therein.

Tipičan raspored intenziteta u rotacionom apsorpcionom spektru ___________________________________________________ This project has been funded with support from the European Commission. This publication reflects the views only of the authors, and the Commission cannot be held responsible for any use which may be made of the information contained therein.

Vrednosti energije rotacije • ___________________________________________________ This project has been funded with support from the European Commission. This publication reflects the views only of the authors, and the Commission cannot be held responsible for any use which may be made of the information contained therein.

Relativna zaposednutost nivoa molekula CO ___________________________________________________ This project has been funded with support from the European Commission. This publication reflects the views only of the authors, and the Commission cannot be held responsible for any use which may be made of the information contained therein.

Primena rotacionih spektara • - za određivanje strukturnih parametara molekula – dužine veza i uglova veza; • - za određivanje dipolnih momenata molekula; • - za određivanje temperature na osnovu merenja intenziteta linija; • - u kvalitativnoj i kvantitativnoj analizi, posebno smeša gasova, izotopnih molekula i strukturnih izomera koji imaju različite momente inercije i različite položaje linija u spektru. ___________________________________________________ This project has been funded with support from the European Commission. This publication reflects the views only of the authors, and the Commission cannot be held responsible for any use which may be made of the information contained therein.

Author, Editor and Referee References This remote access laboratory was created thanks to work done primarily at University of Niš. Contributors to this material were: _Emilija Pecev-Marinkovic________ Refereeing of this material was done by: ___________ Editing into NETCHEM Format and onto NETCHEM platform was completed by: __________________________________________________________ This project has been funded with support from the European Commission. This publication reflects the views only of the authors, ___________________________________________________ andhas the been Commission be held responsible for any use which may made of the information contained This project funded cannot with support from the European Commission. Thisbe publication reflects the views only of therein. the authors, and the Commission cannot be held responsible for any use which may be made of the information contained therein.

References and Supplemental Material The NETCHEM platform was established at the University of Nis in 2016 -2019 through the Erasmus Programme. Please contact a NETCHEM representatives at your institution or visit our website for an expanded contact list. The work included had been led by the NETCHEM staff at your institution. ___________________________________________________ This project has been funded with support from the European Commission. This publication reflects the views only of the authors, ___________________________________________________ andhas the been Commission be held responsible for any use which may made of the information contained This project funded cannot with support from the European Commission. Thisbe publication reflects the views only of therein. the authors, and the Commission cannot be held responsible for any use which may be made of the information contained therein.