Diborane was aboriginal synthesised in the 19th aeon by hydrolysis of metal borides, but it was never analysed. From 1912 to 1936, the above avant-garde in the allure of boron hydrides, Alfred Stock, undertook his analysis that led to the methods for the amalgam and administration of the awful reactive, volatile, and generally baneful boron hydrides. He proposed the aboriginal ethane-like anatomy of diborane. Electron diffraction abstracts by S. H. Bauer initially appeared to abutment his proposed structure.
Because of a claimed advice with L. Pauling (who accurate the ethane-like structure), H. I. Schlessinger did not accurately altercate 3-center-2-electron bonding in his again archetypal analysis in the aboriginal 1940s. The analysis does, however, altercate the C2v anatomy in some depth, "It is to be accustomed that this conception calmly accounts for abounding of the actinic backdrop of diborane..."
In 1943 an undergraduate apprentice at Balliol College, Oxford, H. Christopher Longuet-Higgins, appear the currently accustomed anatomy calm with R. P. Bell. This anatomy had already been declared in 1921. The years afterward the Longuet-Higgins/Bell angle witnessed a bright altercation about the actual structure. The agitation concluded with the electron diffraction altitude in 1951 by K. Hedberg and V. Schomaker, with the acceptance of the anatomy apparent in the schemes on this page.
William Nunn Lipscomb, Jr. added accepted the atomic anatomy of boranes application X-ray crystallography in the 1950s, and developed theories to explain its bonding. Later, he activated the aforementioned methods to accompanying problems, including the anatomy of carboranes on which he directed the analysis of approaching Nobel Prize champ Roald Hoffmann. Lipscomb himself accustomed the Nobel Prize in Allure in 1976 for his efforts.