Showing papers by "Oscar E. Piro published in 1986"
TL;DR: In this article, the IR spectra of the nitroprusside ion in Na2[Fe (CN) 5NO were obtained for thin (100) single crystal plates in the ranges 4000-430 cm-1 and 4000-550 cm- 1 for polarizations along the 1b and c -axes, respectively.
49 citations
TL;DR: In this article, the crystal structure of polycrystalline compounds was determined from diffractometer data and refined with isotropic thermal parameters to final values ofR=0.058 and R = 0.056.
Abstract: The crystal structure of the title compound has been determined from diffractometer data and refined with isotropic thermal parameters to finalR
w
factors ofR=0.058 andR
w
=0.056. It crystallizes in the orthorhombic space groupp212121 (No. 19), witha=9.706(7),b=18.826(6), andc=25.258(6) A. The asymmetric unit contains four nitroprusside ions, eight potassium ions, and five water molecules, one of which shows disorder. The infrared spectra of the polycrystalline compound, both normal and with different degrees of deuteration at temperatures ranging from liquid nitrogen to room temperature, were obtained. The vibrational spectra present an unusual number of fundamental and first overtone NO stretching bands and a rich structure in the water bending region, in accordance with the existence of inequivalent nitroprusside ions and water molecules.
12 citations
10 citations
TL;DR: In this article, the IR spectra of nitroprusside and decomposition products incorporated in potassium hexacyanometallate(III) (metal = Fe, Co) matrices have been studied.
7 citations
TL;DR: The crystal and molecular structure of the title compound has been determined by X-ray diffraction methods as mentioned in this paper, and it crystallizes in the monoclinic space groupP21/n witha=10.072(2),b=19.434(7),c= 19.462(3) A,β=101.07(1)° andZ=4.
Abstract: The crystal and molecular structure of the title compound has been determined by X-ray diffraction methods. It crystallizes in the monoclinic space groupP21/n witha=10.072(2),b=19.434(7),c=19.462(3) A,β=101.07(1)° andZ=4. The anion has a geometry similar to that observed in other related complexes. The two water molecules are hydrogen bonded to each other and are located at van der Waals distances from nitrogen atoms of neighbor nitroprusside anions.
5 citations