The Crystal Structure of Cadmium Nitrate Tetrahydrate

The structure of cadmium nitrate t etrahydrate has been determined from two-dimensional X-ray data. The crystals are rhombic, space group Fdd2-c~; , with a = 5.83, b = 25.75, c = 10.99 A, Z = 8. They are piezoelectric. It follows from the interatomic distances that the compound is tetra-aquocadmium nitrate defined by the formula [Cd(OH2 ) 4](N03)2. The lengths of the cadmium-water distances (2 .35 and 2.37A) are almost the same as the cadmium-oxygen distances in the CdO (2.35 A), and smaller than cadmium-oxygen from the nitrate group

The Crystal Structure of Thorium (IV) Acetylacetonate (A Preliminary x-Ray Examination)

Little is known about the stereochemistry of metal complexes having the coordination number of eight. There are only a few structures of eight coordinated metal complexes hitherto determined with the use of x-ray methods. The square Archimedean antiprism and trigonal dodecahedron were established as the coordination polihedra for (TaF8) 3- and [Mo(CN) 8 ] 4- respectively

Synthesis and Crystallographic Data of Sodium Thorium Triphosphate, NaThi(P04)l, and Sodium Uranium(IV) Triphosphate, NaU2(P04)3

Sodium thorium triphosphate was first prepare d by K. A. Wallroth1 and sodium uranium(IV) triphosphate by M. A. Colani2 . Both oompounds are very stable and practically insoluble in acids. Sirn g le crystals of these compounds were prepared by methods which slightly differ from the above mentioned

The Crystal Structure of Thorium (IV) Acetylacetonate (A Preliminary x-Ray Examination)

Little is known about the stereochemistry of metal complexes having the coordination number of eight. There are only a few structures of eight coordinated metal complexes hitherto determined with the use of x-ray methods. The square Archimedean antiprism and trigonal dodecahedron were established as the coordination polihedra for (TaF8) 3- and [Mo(CN) 8 ] 4- respectively

Preparation and Crystallographic Data of Phosphates with Common Formula M1M~v (P04)3 (M 1 = Li, Na, K, Rb, Cs; M 1v= Zr, Hf)

The investigation of alkali metal salts of zirconium and hafnium phosphates began in connection with the study of similar thorium and tetravalent uraniumphosphates. The common formula of these compounds is M1M ~v (P04) 3 withM 1 = Li, Na, K, Rb, Cs and M 1Y = Th, U, Zr, Hf. The crystal growth and crystallographicdata of NaTh2(P04) 3 , NaU2 (P04 ) 3 and KTh2 (P04 ) 3 have alreadybeen published1 ,2 • They are monoclinic, space groups C2 /c or Cc with four formula weights per unit cell, and have very close lattice parameters. The questionis whether a similar compound with tetravalent metal other than thorium oruranium(IV) can be prepared in a similar way and whether it has similar crystallographic properties

Preparation and Characterization of Some Sodium-, Rubidium-, Cesium- and Ammonium-Oxodiperoxooxalato-Molybdates (VI) and Tungstates (VI)

Potassium derivatives of oxodiperoxooxalato- molybdates and tungstates: were prepared before1>2 studied by infrared Raman3 and X-ray methods4•5 .The crystal structure of corresponding molybdate with literature survey was published recently4

The Crystal Structure of Potassium Dithorium Trisphosphate, KTb2(P04)3

The structure of KTh2(P04h has been determined .from threedimensional X-ray data. The crystals are monoclinic with a= 17.57, b = 6.863, c = 8.138 A, B = 101° 46\u27, Dx = 5.45 g · cm-3• The space group is C2/c and there are four formula urnts per unit cell. It follows from the interatomic distances that the compound is potassium tr.isphosphatodithorate defined by . the formula K [Th2(P04)a]. Nine oxygen atoms are bound to the thorium atom; their distances range from 2.26 to 2.66 A. Eight oxygen atoms are coordinated around potass·ium atom; their distances range from 2.74 to 3.09 A . . The distances in the P04 groups do not deviate significantly from known data

Preparation and Crystal Data of N-(2-hydroxyethyl) taurine, HOCH2CH2NHCH2CH2SOJH

Taurine is a constituent of the bile acids. Since the knowledge of the crystal structure of taurine was important in understanding the biological role of the molecule, structural work on this compound was carried out by several authors1- 3. The last study3 has established that taurine possesses the zwitterion configuration with structural formula NHa+-CH2- CH2-S00-

The Crystal Structure of Cadmium Nitrate Tetrahydrate

The structure of cadmium nitrate t etrahydrate has been determined from two-dimensional X-ray data. The crystals are rhombic, space group Fdd2-c~; , with a = 5.83, b = 25.75, c = 10.99 A, Z = 8. They are piezoelectric. It follows from the interatomic distances that the compound is tetra-aquocadmium nitrate defined by the formula [Cd(OH2 ) 4](N03)2. The lengths of the cadmium-water distances (2 .35 and 2.37A) are almost the same as the cadmium-oxygen distances in the CdO (2.35 A), and smaller than cadmium-oxygen from the nitrate group