6.1.2 For B H+m's open structure(including nido and arachno) In the mid 1950s,Lipscomb proposed the styx method to predict the topological structures of boranes BHn+m with open structures.Lipscomb was awarded Nobel prize "for his studies on the structure of boranes"in 1976.he passed away on Apr. 14,2011. William Lipscomb(American) Nobel speech: Boranes and their chemical bonding uilliam 6.1.2 For BnHn+m’s open structure (including nido and arachno) In the mid 1950s, Lipscomb proposed the styx method to predict the topological structures of boranes BnHn+m with open structures. Lipscomb was awarded Nobel prize “for his studies on the structure of boranes” in 1976. he passed away on Apr. 14, 2011. William Lipscomb（American) Nobel speech: Boranes and their chemical bonding