
Description
The principles and practice of ESR and it's use in solving problems concerning intermediates formed in fast organic free radical reactions.
The principles and practice of ESR and it's use in solving problems concerning intermediates formed in fast organic free radical reactions.
Module code and title: | S304, The nature of chemistry |
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Item code: | S304; 14 |
First transmission date: | 1978 |
Published: | 1978 |
Rights Statement: | |
Restrictions on use: | |
Duration: | 00:24:00 |
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Producer: | Barrie Whatley |
Contributors: | Stuart Bennett; R Norman; B. Gilbert |
Publisher: | BBC Open University |
Keyword(s): | Bonding; Electron spin resonance spectroscopy; Fast organic free radical reactions; Intermediates; Spectroscopic methods; York University |
Footage description: | Footage - Electron spin resonance spectrum of VO2+ ion (0'05"-0'22") - Reaction between purple titanium III ions and hydrogen peroxide. Formula for generating hydroxyl radical (1'46-2'17") - Diagram of methyl radical (2'52"-3'04") - Spectrometer designed for ESR (3'14"-3'29") - Diagram of spin states of electrons (3'55"-6'26") - Radar X-band frequency (7'53"-8'22") - Diagram of essential features of the spectrometer (8'25"-8'53") - Tuning of microwave cavity (8'54"-11'49") - Diagram of reaction of hydroxyl from a redox reaction with dimethyl sulphoxide (11'53"-12'07") - Continuous flow system. ESR spectrometer curve (12'29"-14'24") - Absorption spectrum peaks and derivative. Spectrum of 1,1 dichloroethane (14'33"-15'50") - Spectrum of oxidised methanol (15'57"-16'55") - Diagram of timescale of ESR & NMR (17'04"-17'18") - Vanadium spectrum. Energy level diagram (17'19"-19'00") - Diagram of three orbitals. Diagram of methyl radical & trifluoromethyl (19'41"-20'52"). Structure of VO2+ (21'14"-21'33") - Model of VO2+. IR & Raman data. X-ray structure (21'42"-23'31"). |
Master spool number: | 6HT/72089 |
Production number: | 00525_1204 |
Videofinder number: | 869 |
Available to public: | no |