Crystal structures of [Ni(en)(2)(NO2)]Cl (I) and [cis-beta-Ni(trien)(NO2)]ClO4 (II)

Compound (1) [Ni(en)(2)(NO2)]Cl, NiC4ClH16N5O2, has been synthesized and it s crystal structure determined at 100 K. This compound crystallizes from a deionized water solution at 25 degrees C, in the orthorhombic system space group Fdd2 (No. 43) with lattice constants: a = 18.219(3), b = 8.841(2), c = 12.924(1) Angstrom, V = 2081.6(5)Angstrom(3) and MW = 260.37, Z = 8 d = 1 .662 mg m(-3) A total of 3239 data were recorded over the range of 4 degree s less than or equal to 2 theta less than or equal to 60 degrees; of these, 3086 (unique and with I > 1 sigma(1)) were used in the structural analysis . Data were corrected for absorption. The final discrepancies in the refine ment of the structure are RF = 0.057 and Rw = 0.072. Compound (II) [Ni(trien)(NO2)]ClO4, NiC6ClH18N5O6, has been synthesized and its crystal structure determined at room temperature. This compound crysta llizes from a deionized water solution at 25 degrees C, in the monoclinic s ystem space group P2(1)/n (No. 14) pith lattice constants: a = 8.934(3), b = 12.705(8), c = 12.522(9) Angstrom, beta = 90.33(4), V = 1421.4(14) Angstr om(3), MW = 350.40, Z = 4, d = 1.637 mg m(-3). A total of 4367 data were co llected over the range of 4 degrees less than or equal to 2 theta less than or equal to 60 degrees; of these, 4131 (unique and with I > 2.5 sigma(I)) were used in the structural analysis. Data were corrected for absorption. T he final refinement of the structure produced discrepancies of RF = 0.041 a nd Rw = 0.044.