Structural chemistry

Structural chemistry is a part of chemistry and deals with spatial structures of molecules (in the gaseous, liquid or solid state) and solids (with extended structures that cannot be subdivided into molecules).[1]

The main tasks are:

The formulation of general laws for structure-property relationships; and
The derivation of general rules on how the chemical and physical properties of the constituents of matter determine the resulting structures (e.g. the relationship between the electron configuration of the crystal building blocks and the symmetry of the resulting crystal lattice).

For structure elucidation[1] a range of different methods is used. One has to distinguish between methods that elucidate solely the connectivity between atoms (constitution) and such that provide precise three dimensional information such as atom coordinates, bond lengths and angles and torsional angles. The latter methods include (mainly):

for the gaseous state: gas electron diffraction and microwave spectroscopy
for the liquid state: NMR spectroscopy[2] (note, obtaining precise structural information from liquids and solutions is still rather difficult compared to gases and crystalline solids)
for the solid state: X-ray,[3] electron[4] and neutron diffraction[5]

To identify connectivity and the presence of functional groups a variety of methods of molecular spectroscopy and solid state spectroscopy can be used.

References

David W. H. Rankin, Norbert W. Mitzel, Carole A. Morrison (2013). Structural Methods in Molecular Inorganic Chemistry. Chichester: John Wiley & Sons. ISBN 978-0-470-97278-6.{{cite book}}: CS1 maint: multiple names: authors list (link)
Keeler, James (2010-05-24). Understanding NMR Spectroscopy. John Wiley & Sons. ISBN 978-0-470-74608-0.
Bunaciu, Andrei A.; Udriştioiu, Elena gabriela; Aboul-Enein, Hassan Y. (2015-10-02). "X-Ray Diffraction: Instrumentation and Applications". Critical Reviews in Analytical Chemistry. 45 (4): 289–299. doi:10.1080/10408347.2014.949616. ISSN 1040-8347. PMID 25831472. S2CID 8357094.
Bendersky, L.A.; Gayle, F.W. (November 2001). "Electron diffraction using transmission electron microscopy" (PDF). Journal of Research of the National Institute of Standards and Technology. 106 (6): 997. doi:10.6028/jres.106.051. PMC 4865294. PMID 27500060.
"The use of neutrons for materials characterization", Analysis of Residual Stress by Diffraction using Neutron and Synchrotron Radiation, CRC Press, pp. 15–39, 2003-02-06, doi:10.1201/9780203608999-6, ISBN 9780429211904, retrieved 2023-10-09

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[:0-1] David W. H. Rankin, Norbert W. Mitzel, Carole A. Morrison (2013). Structural Methods in Molecular Inorganic Chemistry. Chichester: John Wiley & Sons. ISBN 978-0-470-97278-6.{{cite book}}: CS1 maint: multiple names: authors list (link)

[2] Keeler, James (2010-05-24). Understanding NMR Spectroscopy. John Wiley & Sons. ISBN 978-0-470-74608-0.

[3] Bunaciu, Andrei A.; Udriştioiu, Elena gabriela; Aboul-Enein, Hassan Y. (2015-10-02). "X-Ray Diffraction: Instrumentation and Applications". Critical Reviews in Analytical Chemistry. 45 (4): 289–299. doi:10.1080/10408347.2014.949616. ISSN 1040-8347. PMID 25831472. S2CID 8357094.

[4] Bendersky, L.A.; Gayle, F.W. (November 2001). "Electron diffraction using transmission electron microscopy" (PDF). Journal of Research of the National Institute of Standards and Technology. 106 (6): 997. doi:10.6028/jres.106.051. PMC 4865294. PMID 27500060.

[5] "The use of neutrons for materials characterization", Analysis of Residual Stress by Diffraction using Neutron and Synchrotron Radiation, CRC Press, pp. 15–39, 2003-02-06, doi:10.1201/9780203608999-6, ISBN 9780429211904, retrieved 2023-10-09

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Structural chemistry

See also

References