A neutron diffraction study of the amino acid salt L-phenylalanine.HCl(C/sub 9/H/sub 12/NO/sub 2//sup +/Cl/sup -/) has been carried out. Space group P2/sub 1/2/sub 1/2/sub 1/; a = 27.763 (17), b = 7.059 (4), c = 5.380 (5) A. The final conventional R value is 0.084 based on 1026 reflections with F/sub 0//sup 2/ greater than sigma(F/sub 0//sup 2/), and all bond lengths are determined with a precision better than 0.03 A. The structure is composed of hydrogen-bonded double layers of phenylalanine molecules joined by N--H . . . Cl and O--H . . . Cl hydrogen bonds.
No takes yet. Share an insight, caveat, or question.
Al‐Karaghouli et al. (1975) studied this question.