Akademik Veri Yönetim Sistemi
ACTA CRYSTALLOGRAPHICA SECTION E-STRUCTURE REPORTS ONLINE, cilt.65, 2009 (SCI-Expanded)
The asymmetric unit of the title compound, [Ni(C(3)H(10)N(2))(2)(H(2)O)(2)](C(4)O(4))center dot 4H(2)O, contains one-half of the diaquabis(1,3-propanediamine) nickel(II) cation, one-half of the centrosymmetric squarate anion and two uncoordinated water molecules. In the cation, the Ni(II) atom is located on a crystallographic inversion centre and has a slightly distorted octahedral coordination geometry. The six-membered chelate ring adopts a chair conformation. O-H center dot center dot center dot O hydrogen bonds link the cation and anion through the water molecule, while N-H center dot center dot center dot O hydrogen bonds link the cation and anion and cation and water molecules. In the crystal structure, intermolecular O-H center dot center dot center dot O and N-H center dot center dot center dot O hydrogen bonds link the molecules into a three-dimensional network structure.