Abstract
The vibrations of boron carbide B13C2have been studied by the valence force model. The 1560-cm−1band is ascribed to the antisymetric stretching of the linear chain, and thereby it is IR active only. Large angle-bending forces of the carbon atoms are estimated to agree with the experiment. This conclusion is reasonable, by considering the strong covalent character of the linear chain. At the cost of forming strong covalent bonds in the linear chain, the character of icosahedral bonding is weakened. The decrease in most Raman bands of boron carbides compared with those ofα-boron can be understood on this basis.
Full Text 
Sign-in/Register to access full text options
Sign-in/Register to access full text options 
Published version (
Free)
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
