S343 Videocassette 1

Synopsis

1 (15 min): Close-up photography of colour reactions and colour of metal ions in solution. Titanium dioxide, tetrachloride, and reduction of titanium IV to III. Manganese ions from II to VII, and oxidation reactions to produce each of the states from III to VII. Disproportionation of manganese VI and its reduction. Oxidation states II and III on cobalt chemistry and what happens when cobalt II is oxidised in both acid and alkali. Cobalt complexes: the hexamine and hexaqua complexes respectively.
2 (19 min): Considers: 1) the relative stabilities of the +2 and +3 aqueous ions of the first transition series; 2) the high oxidation states found in the first transition series; 3) the oxidation states of vanadium. The elements whose chemistry is illustrated in 1) and 2) are chromium, manganese, iron, cobalt and nickel.
3 (ii) (7 min): It is often hard to visualise all the symmetry operations of an object, especially from a two-dimensional representation. Shows the symmetry elements and operations of the symmetry point group Td. The use of ‘cavity animation’ throughout has enabled the solid representation of tetrahedral complexes to be marked clearly enough so that the effect of the various symmetry elements can be seen - not only rotations about each axis, but also reflections in the plane of symmetry. Stresses that some symmetry elements are associated with more than one symmetry operation. Shows how the tetrahedron might be distorted. Asks the viewer to assign the new point group.
3 (iii) (7 min): The octahedron differs from the tetrahedron in having the more complicated symmetry point group, which demands a more involved sequence. Shows the equivalence of the improper operation S2 and the centre of inversion i. Shows how an octahedral complex might be distorted.
4 (10 min): Discusses some aspects of low temperature spectroscopy. Room temperature spectra are generally rather broad, due mostly to the fact that several different vibrational nodes are found in a typical complex, so the number of lines close together can be very large. At very low temperatures this broadening can be almost entirely eliminated, allowing the study of bands otherwise hidden.
5 (19 min): Explores the structure and properties of zeolites, a group of minerals based on crystalline frameworks of aluminium, silicon and oxygen. Shows the detailed structure of zeolites, especially the regular cavities and windows that can accommodate molecules of a variety of shapes and sizes. Prof. Tony Cheetham outlines the applications that arise from these special properties, which include ion exchange, molecular sieving and even shape-specific catalysis.
6 (12 min): Video excerpts: 1) the oxidation states of uranium; 2) Glenn Seabourg on the discovery of nuclear fission; 3) the oxidation states of plutonium; 4) the concept of an actinide series; 5) the chemistry of americium; 6) the chemistry of element 104; 7) a comparison of uranium, nepturium, plutonium and americium.

Series

Inorganic Chemistry, Course S343

Language

English

Country

Great Britain

Medium

Video; Videocassette. Standard formats. col. 96 min.

Year of production

1990

Availability

Sale; 1999 sale: £120.00 (+VAT +p&p)

Subjects

Chemistry

Keywords

actinide series; americium; chemical elements; cobalt; cryostat; geometry; helium; infrared spectroscopy; inorganic chemistry; low temperature phenomena; manganese; neptunium; nickel; nuclear fission; octahedrons; oxidation; periodic table; plutonium; probability contours; quantum numbers; reduction; Schrödinger’s equation; Seabourg, Glenn; spectroscopy; symmetry; tetrachloride; titanium; uranium; zeolites

Credits

Producer

David Jackson; Michael Peet; Rissa de la Paz

Cast

David Johnson
Jan Bright
Tony Cheetham

Sections

Title

Reactions of titanium, manganese and cobalt

Synopsis

1 (15 min): Close-up photography of colour reactions and colour of metal ions in solution. Titanium dioxide, tetrachloride, and reduction of titanium IV to III. Manganese ions from II to VII, and oxidation reactions to produce each of the states from III

Title

Band 1

Synopsis

2 (19 min): Considers: 1) the relative stabilities of the +2 and +3 aqueous ions of the first transition series; 2) the high oxidation states found in the first transition series; 3) the oxidation states of vanadium. The elements whose chemistry is illus

Title

Oxidation states of the first transition, series

Synopsis

3 (ii) (7 min): It is often hard to visualise all the symmetry operations of an object, especially from a two-dimensional representation. Shows the symmetry elements and operations of the symmetry point group Td. The use of 'cavity animation' throughout h

Title

Band 2

Synopsis

3 (iii) (7 min): The octahedron differs from the tetrahedron in having the more complicated symmetry point group, which demands a more involved sequence. Shows the equivalence of the improper operation S2 and the centre of inversion i. Shows how an octah

Title

3rd orbitals

Synopsis

4 (10 min): Discusses some aspects of low temperature spectroscopy. Room temperature spectra are generally rather broad, due mostly to the fact that several different vibrational nodes are found in a typical complex, so the number of lines close together

Title

Band 3 (i)

Synopsis

5 (19 min): Explores the structure and properties of zeolites, a group of minerals based on crystalline frameworks of aluminium, silicon and oxygen. Shows the detailed structure of zeolites, especially the regular cavities and windows that can accommodate

Title

Symmetries of the tetrahedron

Synopsis

6 (12 min): Video excerpts: 1) the oxidation states of uranium; 2) Glenn Seabourg on the discovery of nuclear fission; 3) the oxidation states of plutonium; 4) the concept of an actinide series; 5) the chemistry of americium; 6) the chemistry of element 1

Title

Band 3 (ii)

Title

Symmetries of the octahedron

Title

Band 3 (iii)

Title

Low temperature spectroscopy

Title

Band 4

Title

Zeolites: through the molecular window

Title

Band 5

Title

Transuranium elements, The

Title

Band 6

Production Company

Name

BBC Open University Productions

Distributor

Name

Open University Worldwide

Web

http://www.ouw.co.uk External site opens in new window

Phone

+44 (0) 1908 274066

Address

Walton Hall
Milton Keynes
MK7 6AA

Notes

NB. As of May 2016 Open University Worldwide are no longer distributing DVDs. They have posted this message on their website: ‘Unfortunately Open University Worldwide Limited has decided that product sales are no longer viable given the reduced funding to Higher Education institutions and diminishing demand for the products we have traditionally stocked. At present the Open University Students Association (OUSA) will continue to sell the "Good Study Guide", and we are in discussion with other possible distributors to continue to make The Open University’s products available for purchase. As soon as we have any information on other channels of distribution we will update this notice’. Some products are still available via second hand dealers on Amazon.co.uk