Die Kristallstruktur von Gadolinium (III)-sulfit Trihydrat Gd2(S03)3∙ 3H2O / Crystal Structure of Gadolinium(III)-sulfite Trihydrate Gd2(SO3)3 ∙3H2O (original) (raw)
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Die Kristallstruktur von Gadolinium(III)-sulfit Trihydrat Gd2(SO3)3.3H2O
1994
Gd 2 (SO 3 ) 3 .3 H 2 O is obtained by passing gaseous SO 2 through a suspension of Gd 2 O 3 in H 2 O at room temperature until a clear solution is formed. Single crystals are obtained by heating to 70(2) o C for 6 days. The compound crystallizes in the triclinic space group P1 with a=6.499(6), b=6.621(3), c=6.954(3), α=110.71(5), β=90.54(3), γ=106.05(1) o and Z=1. The two crystallographically different gadolinium atoms are both coordinated by eight oxygen atoms forming distorted square antiprisms
Zeitschrift für Naturforschung B, 1994
Gd(HSO4)3 is obtained on treatment of Gd2(SO4)3 in conc. H2SO4 in closed vessels at 200 °C. The extremely moisture-sensitive crystals belong to the orthorhombic space group Pbca. Lattice constants are a = 12.080(8), b = 9.574(8), c = 16.513(8)Å and Z = 8. Gadolinium is coordinated by eight oxygen atoms of the hydrogensulfate ligands forming a distorted square antiprism. There are three different HSO4- anions within the structure. One of them is coordinated with two Gd atom s while two HSO4- anions bridge three Gd atoms. The Gd-O bond lengths vary in the range of 2.334(6)-2.423(5)Å .
Die Kristallstruktur von Gadolinium-(III)-hydrogensulfat Gd(HSO4)3
1994
Gd(HSO 4 ) 3 is obtained on treatment of Gd 2 (SO 4 ) 3 in conc. H 2 SO 4 in closed vessels at 200 o C. The extremely moisture-sensitive crystals belong to the orthorhombic space group Pbca. Lattice constants are a=12.080(8), b=9.374(8), c=16.313(8)A and Z=8. Gadolinium is coordinated by eight oxygen atoms of the hydrogensulfate ligands forming a distorted square antiprism. There are three different HSO 4 - anions within the structure. One of them is coordinated with two Gd atoms while two HSO 4 - anions bridge three Gd atoms. The Gd-O bond lengths vary in the range of 2.334(6)-2.423(3) A
Kristallstruktur von Trisilber(I)amidosulfat-3-Ammoniak-2-Wasser, Ag 3 SO 3 N � 3N
Monatsh Chem, 1987
= 5.85 % (877 reflections, 118 parameters). The structure contains Ag planes with Ag-Ag distances shorter than in metallic silver. The nitrogen atoms of the NO3N anion are covalently bonded to 4 Ag atoms of these Ag planes, thus assuming the extraordinary coordination number of 5. The five crystallographically independent Ag atoms forming the Ag planes have approximate linear N-A g-N coordination. In addition, the structure contains two Ag atoms which are ionically coordinated to 4 resp. 5 0 atoms of SO3N and water. The colour-structure correlation of Ag(I) compounds with colourless anions is discussed.
Kristallstruktur von Trisilber(I)amidosulfat Monohydrat, Ag 3 SO 3 N � H 2</su
Monatsh Chem, 1987
= 5.85 % (877 reflections, 118 parameters). The structure contains Ag planes with Ag-Ag distances shorter than in metallic silver. The nitrogen atoms of the NO3N anion are covalently bonded to 4 Ag atoms of these Ag planes, thus assuming the extraordinary coordination number of 5. The five crystallographically independent Ag atoms forming the Ag planes have approximate linear N-A g-N coordination. In addition, the structure contains two Ag atoms which are ionically coordinated to 4 resp. 5 0 atoms of SO3N and water. The colour-structure correlation of Ag(I) compounds with colourless anions is discussed.
Kristallstruktur von Trisilber(I)amidosulfat Monohydrat, Ag3SO3N � H2O
Monatshefte f�r Chemie Chemical Monthly, 1987
= 5.85 % (877 reflections, 118 parameters). The structure contains Ag planes with Ag-Ag distances shorter than in metallic silver. The nitrogen atoms of the NO3N anion are covalently bonded to 4 Ag atoms of these Ag planes, thus assuming the extraordinary coordination number of 5. The five crystallographically independent Ag atoms forming the Ag planes have approximate linear N-A g-N coordination. In addition, the structure contains two Ag atoms which are ionically coordinated to 4 resp. 5 0 atoms of SO3N and water. The colour-structure correlation of Ag(I) compounds with colourless anions is discussed.
Zeitschrift für anorganische und allgemeine Chemie, 2000
Tris[3-hydroxy-2(1 H)-pyridinonato] complexes of Al 3+ , Cr 3+ and Fe 3+ are obtained by reactions of 3-hydroxy-2(1 H)pyridinone with the hydrates of AlCl 3 , CrCl 3 or Fe(NO 3) in aqueous alkaline solutions as polycrystalline precipitates. The compounds are isotypic. X-ray structure determinations were performed on single crystals of the uncoordinated 3-hydroxy-2(1 H)-pyridinone (1) (orthorhombic, space group P2 1 2 1 2 1 , a = 405.4(1), b = 683.0(1), c = 1770.3(3) pm, Z = 4) and of the chromium compound 3 (rhombohedral with hexagonal setting, space group R3c, a = 978.1(1), c = 2954.0(1) pm, Z = 6).
A three-dimensional X-ray diffraction analysis of the crystalline trihydrate of 5-sulphosalicyclic acid, C6H3(COOH)(OH)SO3H. 3H20, revealed the ionic nature of this compound and its correct formulation as diaquo-oxonium salicylic acid 5-sulphonate, H7O3+[C6H3(COOH)(OH)SO3-]. The material crystallizes in space group Pbca with eight formula units per unit cell of dimensions a= 6.647; b = 24.515; c= 13.880A. With 1846 observed independent automatic diffractometer data minus 12 strong low orders the final R value is 0.041. The diaquo-oxonium cation is formed by the transition of the acid proton of the sulpho group into the water structure, which gives rise to two very short hydrogen bonds with O....O distances of 2.442 and 2.516A at an angle of 109.8 °. The excess proton resides at the apex oxygen with the shortest hydrogen bond not far from being centred. All protons of the crystal structure bonded to oxygen atoms form hydrogen bonds, including a weak bifurcated interaction at an intramolecular hydrogen bond. This and the distribution of covalent bond lengths in the anion is similar to the situation in salicylic acid itself.