Nanotecnologia Brasilia

That smile. That presence. That fashion sense. Yup, Richard Feynman. First we're published together in the CRC Handbook of Nanotech, now we find ourselves playing the same second fiddles on the same page to the infinitely more photogenic Giselle Itiê. Not bad, considering he checked out before I entered my teens.

I have no idea what Pablo Nogueira's article says, but I do know that the folks at Revista Latitude (that's Latitude Magazine!) spiced the text up with a few primo images available from Rocky Rawstern's much appreciated gallery. Revista Latitude and Revista Top are very visual magazines. The now-ness of a Rolling Stone with the imagery of a National Geographic. I didn't understand a word but I much enjoyed turning the pages. It does a researcher good to see that a magazine can make science work in same binding with photojournals of exotic destinations or fashion on location.

Calfskin bongos, international models, molecular nanotechnology. I think anyone who finished "Surely You Must Be Joking" would conclude that the man would approve.

The Inelastic Neutron Scattering Spectrum Of Cs2[B12H12]: Reproduction Of Its Solid-State Vibrational Spectrum By Periodic DFT

In press, available from the Journal of Physical Chemistry A. The INS experiment was carried out using the TOSCA instrument across the pond at the ISIS facility of the Rutherford Appleton Laboratory. The solid-state calculations were performed, as usual, with DMol3 from Accelrys. The paper was presented originally at the 2005 ACS DC meeting, available in the posters page on this site. Another example of theory and vibrational spectroscopy generating a far more complete picture than crystallography alone.

D. G. Allis and B. S. Hudson

Abstract: The inelastic neutron scattering (INS) spectrum of polycrystalline Cs2[B12H12] is assigned through 1200 cm-1 based on aqueous and solid-state Raman/IR measurements and normal mode analyses from solid-state density functional theory. The Cs+ cations are responsible for frequency shifts of the internal cage vibrational modes and Ih cage mode splittings due to the crystal Th site symmetry. These changes to the [B12H12]-2 molecular modes make isolated molecule calculations inadequate for use in complete assignments. Solid-state calculations reveal that 30/40 cm-1 shifts of Tg/Hg molecular modes are responsible for structure in the INS spectrum unobserved by optical methods or in aqueous solutions.