Pentamethylmolybdenum has been prepared and characterized by single crystal structure determinati... more Pentamethylmolybdenum has been prepared and characterized by single crystal structure determination, EPR, and Raman spectroscopy.
The solid state structures of O2F2 and OF2 resemble those in the gaseous state. Attempts to isola... more The solid state structures of O2F2 and OF2 resemble those in the gaseous state. Attempts to isolate the proposed (O2+)2PdF62− from O2F in HF result in the formation of (O2+H3Pd2F12−)n.
... Luis Alvarez-Thon,1 J. David,1 Ramiro Arratia-Pérez,1,* and Konrad Seppelt2,† 1Departamento d... more ... Luis Alvarez-Thon,1 J. David,1 Ramiro Arratia-Pérez,1,* and Konrad Seppelt2,† 1Departamento de Ciencias Fisicas, Universidad Andrés Bello, Avenida ... resolved NMR spectra; the 19F NMR spectrum is a superpo-sition of five isotopomers that cause a single sharp line at ...
Fürd as instabile und extrem reaktive BrO 2 Fw ird eine verlässliche Synthese beschrieben. Dieses... more Fürd as instabile und extrem reaktive BrO 2 Fw ird eine verlässliche Synthese beschrieben. Dieses wird in BrO 2 Abbildung 5. Das Anion Br(NO 3) 2 À im NO 2 + Br(NO 3) 2 À :Bindungslän
Zeitschrift für anorganische und allgemeine Chemie
The platinum(II) salt Pt(H 2 O) 4 (SbF 6) 2 is a stable compound. In the solid state the compound... more The platinum(II) salt Pt(H 2 O) 4 (SbF 6) 2 is a stable compound. In the solid state the compound consists of isolated Pt(H 2 O) 4 2+ cations and SbF 6 anions. Space group P1, Z = 1, lattice dimensions at 133 K:
The structures of three solvated monovalent cation salts of the superweak anion B12F12(2-) (Y(2-)... more The structures of three solvated monovalent cation salts of the superweak anion B12F12(2-) (Y(2-)), K2(SO2)6Y, Ag2(SO2)6Y, and Ag2(H2O)4Y, are reported and discussed with respect to previously reported structures of Ag(+) and K(+) with other weakly coordinating anions. The structures of K2(SO2)6Y and Ag2(SO2)6Y are isomorphous and are based on expanded cubic close-packed arrays of Y(2-) anions with M(OSO)6(+) complexes centered in the trigonal holes of one expanded close-packed layer of B12 centroids (⊙). The K(+) and Ag(+) ions have virtually identical bicapped trigonal prism MO6F2 coordination spheres, with M-O distances of 2.735(1)-3.032(2) Å for the potassium salt and 2.526(5)-2.790(5) Å for the silver salt. Each M(OSO)6(+) complex is connected to three other cationic complexes through their six μ-SO2-κ(1)O,κ(2)O' ligands. The structure of Ag2(H2O)4Y is unique [different from that of K2(H2O)4Y]. Planes of close-packed arrays of anions are offset from neighboring planes along...
ReF28, and XeF2-8.-Single crystals of (NO+)2MF2-8 (M: W, Xe) (orthorhombic, space group Pnma, Z =... more ReF28, and XeF2-8.-Single crystals of (NO+)2MF2-8 (M: W, Xe) (orthorhombic, space group Pnma, Z = 4) and of the compound with M: Re are prepared by reaction of MF6 (M: W, Xe) or ReFn (n = 6 and 7), respectively, with NOF. (NO2) 2ReF8 (orthorhombic, Pbca, Z = 8) is also synthesized from ReF6 and NO2F while single crystals of Cs2XeF8•4 BrF5 (Pnma, Z = 4) are formed by crystallization from a solution of Cs2XeF8 in BrF5 at 60. degree.C. Structure determination by XRD methods using the structure of NO(NOF)2IF8 as standard gives evidence that the square-anti-prismatic geometry, found in all anions independent of their electronic structure, is the principle structure for CN 8. Larger bond lengths in ReF2-8 and XeF2-8 than in WF2-8 and IF-8 are due to the presence of nonbonding electrons.-(ADAM, S.; ELLERN, A.;
Pentamethylmolybdenum has been prepared and characterized by single crystal structure determinati... more Pentamethylmolybdenum has been prepared and characterized by single crystal structure determination, EPR, and Raman spectroscopy.
The solid state structures of O2F2 and OF2 resemble those in the gaseous state. Attempts to isola... more The solid state structures of O2F2 and OF2 resemble those in the gaseous state. Attempts to isolate the proposed (O2+)2PdF62− from O2F in HF result in the formation of (O2+H3Pd2F12−)n.
... Luis Alvarez-Thon,1 J. David,1 Ramiro Arratia-Pérez,1,* and Konrad Seppelt2,† 1Departamento d... more ... Luis Alvarez-Thon,1 J. David,1 Ramiro Arratia-Pérez,1,* and Konrad Seppelt2,† 1Departamento de Ciencias Fisicas, Universidad Andrés Bello, Avenida ... resolved NMR spectra; the 19F NMR spectrum is a superpo-sition of five isotopomers that cause a single sharp line at ...
Fürd as instabile und extrem reaktive BrO 2 Fw ird eine verlässliche Synthese beschrieben. Dieses... more Fürd as instabile und extrem reaktive BrO 2 Fw ird eine verlässliche Synthese beschrieben. Dieses wird in BrO 2 Abbildung 5. Das Anion Br(NO 3) 2 À im NO 2 + Br(NO 3) 2 À :Bindungslän
Zeitschrift für anorganische und allgemeine Chemie
The platinum(II) salt Pt(H 2 O) 4 (SbF 6) 2 is a stable compound. In the solid state the compound... more The platinum(II) salt Pt(H 2 O) 4 (SbF 6) 2 is a stable compound. In the solid state the compound consists of isolated Pt(H 2 O) 4 2+ cations and SbF 6 anions. Space group P1, Z = 1, lattice dimensions at 133 K:
The structures of three solvated monovalent cation salts of the superweak anion B12F12(2-) (Y(2-)... more The structures of three solvated monovalent cation salts of the superweak anion B12F12(2-) (Y(2-)), K2(SO2)6Y, Ag2(SO2)6Y, and Ag2(H2O)4Y, are reported and discussed with respect to previously reported structures of Ag(+) and K(+) with other weakly coordinating anions. The structures of K2(SO2)6Y and Ag2(SO2)6Y are isomorphous and are based on expanded cubic close-packed arrays of Y(2-) anions with M(OSO)6(+) complexes centered in the trigonal holes of one expanded close-packed layer of B12 centroids (⊙). The K(+) and Ag(+) ions have virtually identical bicapped trigonal prism MO6F2 coordination spheres, with M-O distances of 2.735(1)-3.032(2) Å for the potassium salt and 2.526(5)-2.790(5) Å for the silver salt. Each M(OSO)6(+) complex is connected to three other cationic complexes through their six μ-SO2-κ(1)O,κ(2)O' ligands. The structure of Ag2(H2O)4Y is unique [different from that of K2(H2O)4Y]. Planes of close-packed arrays of anions are offset from neighboring planes along...
ReF28, and XeF2-8.-Single crystals of (NO+)2MF2-8 (M: W, Xe) (orthorhombic, space group Pnma, Z =... more ReF28, and XeF2-8.-Single crystals of (NO+)2MF2-8 (M: W, Xe) (orthorhombic, space group Pnma, Z = 4) and of the compound with M: Re are prepared by reaction of MF6 (M: W, Xe) or ReFn (n = 6 and 7), respectively, with NOF. (NO2) 2ReF8 (orthorhombic, Pbca, Z = 8) is also synthesized from ReF6 and NO2F while single crystals of Cs2XeF8•4 BrF5 (Pnma, Z = 4) are formed by crystallization from a solution of Cs2XeF8 in BrF5 at 60. degree.C. Structure determination by XRD methods using the structure of NO(NOF)2IF8 as standard gives evidence that the square-anti-prismatic geometry, found in all anions independent of their electronic structure, is the principle structure for CN 8. Larger bond lengths in ReF2-8 and XeF2-8 than in WF2-8 and IF-8 are due to the presence of nonbonding electrons.-(ADAM, S.; ELLERN, A.;
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