File:Sample of crystals prepared by Edith Humphrey around 1900.jpg
Sample_of_crystals_prepared_by_Edith_Humphrey_around_1900.jpg (445 × 297 pixels, file size: 46 KB, MIME type: image/jpeg)
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DescriptionSample of crystals prepared by Edith Humphrey around 1900.jpg |
English: Crystals of cis-bis(ethylenediamine)dinitrocobalt(III) bromide taken from the original sample in the Alfred Werner collection at the University of Zürich. The label on the display box is a facsimile of the original label from 1901.
The compound and the crystals were prepared by Edith Humphrey of London in the course of her research and are first described in her Ph.D. thesis entitled "Über die Bindungsstelle der Metalle in ihren Verbindungen und über Dinitritoäthylendiaminkobaltisalze". Her work was undertaken around 1900 at the University of Zürich in the laboratories of Alfred Werner. Although not recognised at the time, the formation of enantiomorphic crystals in this way represented the first synthesis of optically active octahedral cobalt complexes.
This box is on display in the Royal Society of Chemistry, Burlington House, Piccadilly, London W1J 0BA |
Date | |
Source | Own work |
Author | Caroline Maynard |
Camera location | 51° 30′ 32.04″ N, 0° 08′ 20.4″ W | View this and other nearby images on: OpenStreetMap | 51.508900; -0.139000 |
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current | 23:35, 4 March 2014 | 445 × 297 (46 KB) | Monxton (talk | contribs) | User created page with UploadWizard |
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Width | 445 px |
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Height | 297 px |
Compression scheme | Uncompressed |
Pixel composition | Black and white (White is 0) |
Orientation | Normal |
Number of components | 1 |
Horizontal resolution | 75 dpi |
Vertical resolution | 75 dpi |
Software used | Adobe Photoshop CS2 Windows |
File change date and time | 22:03, 4 March 2014 |
Color space | Uncalibrated |
Bits per component | 8 |
Image width | 445 px |
Image height | 297 px |
Date and time of digitizing | 22:03, 4 March 2014 |
Date metadata was last modified | 22:03, 4 March 2014 |