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Structure of rare-earth tetrasulfimidates. Crystal structure of H(N/sub 4/S/sub 4/O/sub 8/Nd(H/sub 2/O)/sub 5/) 3H/sub 2/O (in Russian)

Journal Article · · Sov. J. Coordinat. Chem.; (United States)
OSTI ID:6225901
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An x-ray diffraction investigation of the neodymium complex with the tetrasulfimidato ligand, which is a member of the isostructural series Ln(HO/sub 8/S/sub 4/N/sub 4/) 8H/sub 2/O, where Ln = La through Nd, has been carried out (lambda Mo, anisotropic least-squares method, R = 0.044 on the basis of 4729 reflections). The crystals are monoclinic: a = 7.436(1), b = 15.514(3), c = 14.669(3) A, ..beta.. = 98.32(1)/sup 0/, space group P2/sub 1//c, Z = 4. The structure is based on infinite ((H/sub 7/O)/sub 5/NdS/sub 4/N/sub 4/O/sub 8/)/sub infinity//sup -/ chains and molecules of water of crystallization. The tetrasulfimidato ligand plays the role of a bis-bidentate bridge, which joints two neighboring Nd atoms. The S/sub 4/N/sub 4/ heterocycle has a coat conformation and exists in the sulfazene tautomeric form. The coordination polyhedron of the nd atom is a distorted monocapped antiprism. The lengths of the Nd-O bonds lie in the 2.460-2.543-A range. The S-N distances in the ring are equalized, and the mean value is 1.602(5) A. The chains are joined to form a framework by a system of hydrogen bonds with the participation of the molecules of water of crystallization.
OSTI ID:
6225901
Journal Information:
Sov. J. Coordinat. Chem.; (United States), Journal Name: Sov. J. Coordinat. Chem.; (United States) Vol. 11:3; ISSN SJCCD
Country of Publication:
United States
Language:
Russian

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Related Subjects

36 MATERIALS SCIENCE
360602 -- Other Materials-- Structure & Phase Studies
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201* -- Chemical & Physicochemical Properties
BOND ANGLE
BOND LENGTHS
COHERENT SCATTERING
COMPLEXES
COMPUTERIZED SIMULATION
COORDINATION NUMBER
CRYSTAL LATTICES
CRYSTAL STRUCTURE
DIFFRACTION
DIMENSIONS
DISTANCE
ELECTRONIC STRUCTURE
HOLMIUM COMPLEXES
HYDRATES
INTERATOMIC DISTANCES
LATTICE PARAMETERS
LEAST SQUARE FIT
LENGTH
LIGANDS
MAXIMUM-LIKELIHOOD FIT
MOLECULAR STRUCTURE
MONOCLINIC LATTICES
NEODYMIUM COMPLEXES
NITROGEN COMPOUNDS
NUMERICAL SOLUTION
RARE EARTH COMPLEXES
SCATTERING
SIMULATION
STRUCTURAL CHEMICAL ANALYSIS
SULFUR COMPOUNDS
X-RAY DIFFRACTION