Isabel Ellie Knaggs (2 August 1893 – 29 November 1980) was a Colony of Natal born crystallographer. She was educated and worked in the UK. She worked with Kathleen Lonsdale on the crystal structure of benzil.
Isabel Ellie Knaggs | |
|---|---|
| Born | 2 August 1893 Durban |
| Died | 29 November 1981 Sydney |
| Alma mater | Imperial College London Bedford College, London |
| Scientific career | |
| Institutions | Royal Institution Burroughs Wellcome |
Early life and education
editKnaggs was born in Durban. She may have attended a Froebel kindergarten in Hampstead. She attended North London Collegiate School and later attended Bedford College, London.[1] In 1913 Knaggs joined Girton College at the University of Cambridge to study chemistry.[1] She studied with William Pope on the determination of crystal structures.[2] Arthur Hutchinson appointed her as a research assistant.[3] She was elected as a member of the Geological Society of London in 1921.[3][4] She completed her PhD, The Relation between the Crystal Structure and Constitution of Carbon Compounds, with Special Reference to Simple Substitution Products of Methane, in 1923 at Imperial College London.[5][6] During her PhD Knaggs remained as a demonstrator in geology at Bedford College, London.[3]
Research
editIn 1925 she was awarded a two-year Hertha Ayrton fellowship to join the Royal Institution.[3] Knaggs worked with William Henry Bragg and Kathleen Lonsdale.[3][7] She looked at diffuse reflection of x-rays from single crystals.[8] She secured a permanent position in 1927.[3] She determined the crystal structure of cyanuric triazide.[3][9][10]
Knaggs co-authored Tables of Cubic Crystal Structures with Berta Karlik and Constance Elam in 1932.[11] She served as an advisor to Burroughs Wellcome (now GlaxoSmithKline).[3] In her retirement, Knaggs was elected as a visiting scientist to the Royal Institution.[3]
Personal life
editIn 1979, Knaggs moved to Australia. On 29 November 1980, Knaggs died in Sydney, Australia.[3]
References
edit- ^ a b Kahr, Bart (25 August 2015). "Broader Impacts of Women in Crystallography". Crystal Growth & Design. 15 (10): 4715–4730. doi:10.1021/acs.cgd.5b00457. ISSN 1528-7483.
- ^ Fifty Years of X-Ray Diffraction - Dedicated to the International Union of Crystallography on the Occasion of the Commemoration Meeting in Munich July 1962 | P.P. Ewald | Springer. Springer. 1962. ISBN 9781461599630.
- ^ a b c d e f g h i j F., Rayner-Canham, Marelene (2008). Chemistry was their life : pioneering British women chemists, 1880-1949. Rayner-Canham, Geoffrey. London: Imperial College Press. ISBN 9781860949876. OCLC 665046168.
{{cite book}}: CS1 maint: multiple names: authors list (link) - ^ Burek, Cynthia V. (2009). "The first female Fellows and the status of women in the Geological Society of London". Geological Society, London, Special Publications. 317 (1): 373–407. doi:10.1144/sp317.21. ISSN 0305-8719. S2CID 128719787.
- ^ Knaggs, Isabel Ellie (1923). "IX.—The relation between the crystal structure and the constitution of carbon compounds. Part I. Compounds of the type CX4". J. Chem. Soc., Trans. 123: 71–79. doi:10.1039/CT9232300071. ISSN 0368-1645.
- ^ "Doctor of Philosophy (Science): Honours and Higher Degrees: Internal Students | British History Online". www.british-history.ac.uk. Retrieved 10 September 2018.
- ^ "Isabel Ellie Knaggs | University Women's International Networks Database". uwind.mpiwg-berlin.mpg.de (in German). Archived from the original on 4 July 2019. Retrieved 10 September 2018.
- ^ LONSDALE, K.; KNAGGS, I. E.; SMITH, H. (September 1940). "Diffuse Reflection of X-Rays by Single Crystals". Nature. 146 (3697): 332–333. doi:10.1038/146332a0. ISSN 0028-0836. S2CID 39006274.
- ^ Knaggs, I. Ellie (1 July 1935). "The crystal structure of cyanuric triazide". Proc. R. Soc. Lond. A. 150 (871): 576–602. doi:10.1098/rspa.1935.0123. ISSN 0080-4630.
- ^ E., Downie, Laura (2012). Pathways to recovering single-bonded nitrogen at ambient conditions : high pressure studies of molecular and ionic azides. Library and Archives Canada = Bibliothèque et Archives Canada. ISBN 9780494741825. OCLC 824499344.
{{cite book}}: CS1 maint: multiple names: authors list (link) - ^ Knaggs, Isabel Ellie; Elam, Constance Fligg; Karlik, Berta (1932). Tables of Cubic Crystal Structure of Elements and Compounds. Published by A. Hilger, ltd.