85701-87-7Relevant academic research and scientific papers
Pyrolysis reactions of 1,5-C2B3H5 and 1,6-C2B4H6. Isolation of a new four-carbon carborane, C4B7H11, and the boron-carbon-bonded dimer and trimers of 1,5-C2B3H5. Improved synthesis of the mixed-cage carborane 2′:2-[1′,5′-C ...
Astheimer, Robert J.,Sneddon, Larry G.
, p. 1928 - 1934 (2008/10/08)
Full title: Pyrolysis reactions of 1,5-C2B3H5 and 1,6-C2B4H6. Isolation of a new four-carbon carborane, C4B7H11, and the boron-carbon-bonded dimer and trimers of 1,5-C2B3H5. Improved synthesis of the mixed-cage carborane 2′:2-[1′,5′-C2B3H 4][1,6-C2B4H5]. The gas-phase pyrolysis reactions of 1,5-C2B3H5 and 1,6-C2B4H6 in a hot/cold reactor (400/0°C) were studied. In agreement with previous reports, major products of the pyrolysis of 1,5-C2B3H5 were found to be the boron-boron-linked dimer, 2:2′-[1,5-C2B3H4]2, and trimer, 2:2′,3′:2″-[1,5-C2B3H 4][1′,5′-C2B3H 3][1″,5″-C2B3H4]. Also isolated from the reaction were a number of previously unknown compounds, including a boron-carbon-linked dimer 1:2′-[1,5-C2B3H4]2, two boron-boron-, boron-carbon-linked trimers, 2:2′,1′:2″-[1,5-C2B3H 4][1′,5′-C2B3H 3][1″,5″-C2B3H4] and 2:2′,3′:1″-[1,5-C2B3H 4][1′,5′-C2B3H 3][1″,5″-C2B3H4], and a new tetracarbon nido carborane, C4B7H11. The pyrolysis of 1,6-C2B4H6 was found to give only polymerization; however, the copyolysis of 1,5-C2B3H5 and 1,6-C2B4H6 was found to produce the previously reported mixed-cage coupled carborane 2′:2-[1′,5′-C2B3H 4][1,6-C2B4H5] in good yield.
