Raman and Infrared spectroscopies and X-ray diffraction data on bupivacaine and ropivacaine complexed with 2-hydroxypropyl−β−cyclodextrin by Martins, ML, Eckert, J, Jacobsen, H, Dos Santos, EC, Ignazzi, R, de Araujo, DR, Bellissent-Funel, M-C, Natali, F, Koza, M, Matic, A, de Paula, E, Bordallo, HN