期刊
NATURE CHEMISTRY
卷 4, 期 7, 页码 563-567出版社
NATURE PUBLISHING GROUP
DOI: 10.1038/NCHEM.1379
关键词
-
资金
- European Research Council
Only a handful of elements are able to be controllably homocatenated (that is, to be formed into one-or two-dimensional chains or rings of the element), because most have weak element-element bonds. Boron forms strong B-B bonds, but its favourable cluster formation makes homocatenation very difficult. Recently, the coupling of borylene (:BR) ligands on a metal was predicted computationally. We have brought this prediction to fruition experimentally, and extended it by adding two further borylene units, stepwise forming a B-4 chain bound to a metal under mild conditions. This complex is a useful model for understanding the metal-boron interactions required to promote transition of the boron atoms from borylene ligands to oligoborane networks bound side-on. The concept shows great promise for the controlled construction of one-dimensional boron chains.
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