Crystal and molecular structure determination, TGA, DTA, and infrared and Raman spectra of rubidium nitroprusside monohydrate, Rb-2[Fe(CN)(5)NO] center dot H2O

The crystal structure of rubidium nitroprusside monohydrate, Rb-2[Fe(CN)(5) NO] . H2O, has been determined from X-ray diffraction data and refined usin g direct and Fourier methods to R = 0.066 and Rw = 0.075, employing 1894 in dependent reflections with I > 3 (I). The substance crystallizes in the mon oclinic space group C2/c (C-2h(6)), with a = 13.987(2), b = 10.241(1), c = 18.151(1) Angstrom, beta = 110.94 degrees, and Z = 8. Anions are located at C-1 sites, one per asymmetric unit, and are slightly distorted octahedra. TGA, DTA, FTIR, and FTIR Raman results were interpreted on the basis of the formula of the compound, its crystal structure, and the behavior of other nitroprussides.