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1	Author	H. Jacobs, E.Von Osten	Requires cookie*
	Title	The Crystal Structure of a New Modification of Potassium Amide, KNH2
	Abstract	In the temperature range from 54 to 75 °C a new modification of KNH2 was found, which crystallizes tetragonally a — 4.282 ±0.003 A, c = 6.182 ±0.003 A, and c/o= 1.444 (60 °C), in P 4/nmm -No. 129-, Z = 2, 2 K in 2c 0 1/2 z, z = 0.202(5), 2 N in 2c 0 1/2 z, z = 0.737(15). Its structure is of a deformed sodium chloride type.
	Reference	(Z. Naturforsch. 31b, 385—386 [1976]; eingegangen am 24. November 1975)
	Published	1976
	Keywords	Potassium-Compound, Crystal Structures, Amides
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	Identifier	ZNB-1976-31b-0385_n
	Volume	31

2	Author	Klaus Deller, Brigitte Eisenmann	Requires cookie*
	Title	The Crystal Structure of SrAs3
	Abstract	The new intermetallic compound S1A.S3 crystallizes monoclinic, space group C2/m [a = 9.61(1) A, b = 7.63(1) A, c = 5.88(1) A, ß — 112.9(1)°). The anionic part of the struc-ture contains puckered layers of two-and threebonded As-atoms.
	Reference	(Z. Naturforsch. 31b, 1550—1551 [1976]; eingegangen am 6. September 1976)
	Published	1976
	Keywords	Intermetallic Compounds, Arsenide, Crystal Structure
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	Identifier	ZNB-1976-31b-1550_n
	Volume	31

3	Author	W. Haase, R. Mergehenn, W. Krell	Requires cookie*
	Title	Die Kristallstruktur von Thiocyanato(2-dimethylaminoäthanolato)kupfer(II) The Crystal Structure of Thiocyanato(2-dimethylaminoethanalato)copper(II)
	Abstract	The crystal structure of the title compound has been determined from three-dimensional X-ray diffractometer data. Crystals are monoclinic, space group P2i/c with 8 CU(C4HIONO)SCN units in a cell of dimensions a = 11.951(4), b = 8.954(3), c = 16.805(6) Ä, and ß = 107.5(1)°. The structure was refined by least squares techniques to a final discrepancy factor of 0.041 based on 2234 observed independent reflexions. The compound is polymeric with copper atoms alternately bridged by two oxygen atoms and two thiocyanato groups. The coordination geometry around each copper atom is distorted square pyramidal. The basal plane consists of the two bridging oxygen atoms (mean value Cu-O: 1.914(3) A), the amino nitrogen atom (mean value Cu—N: 2.035(3) A) and the nitrogen atom from the thiocyanato group (mean value Cu-N: 1.908(3) A) while the axial coordination site is occupied by a sulfur atom from a thiocyanato group (mean value Cu-S: 2.979(2) A) centrosymmetric to the first. The magnetic susceptibility of the compound shows a broad maximum at 200 K.
	Reference	(Z. Naturforsch. 31b, 85—89 [1976]; eingegangen am 25. September 1975)
	Published	1976
	Keywords	Crystal Structure, Copper Compound, Thiocyanato Bridging, Spin Coupling
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	Identifier	ZNB-1976-31b-0085
	Volume	31

4	Author	Klaus-Jürgen Range, Richard Leeb	Requires cookie*
	Title	Preparation and Crystal Structure of the High Pressure Phase Tm 2 S3-II
	Abstract	Single crystals of the quenchable high pressure phase Trri2S3-II were grown from a TmJ3-flux at 10 kbar, 1600 °C. The crystals are monoclinic, space group P2i/m, with a = 11.110(5) A, 6 = 3.874(3) A, c = 10.872(5) A, ß = 108.88(2) ° and Z = 4. In Tm2S3-II, which is isotypic with Er3ScS6, the four independent thulium atoms are coordinated by six (2 x), seven and eight sulfur atoms.
	Reference	(Z. Naturforsch. 31b, 311—314 [1976]; eingegangen am 7. November 1975)
	Published	1976
	Keywords	Thulium Sesquisulfide, High Pressure Phase, Crystal Structure
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	Identifier	ZNB-1976-31b-0311
	Volume	31

5	Author	Bernd Grande, Hanskarl Müller-Buschbaum	Requires cookie*
	Title	Über Oxocuprate, XIV Zur Kristallchemie von Sr2Cu304Cl2 On Oxocuprate, XIV On the Crystal Chemistry of Sr2Cu304Cl2
	Abstract	The new compound Sr2Cu304Cl2 was prepared in melts of SrCl2. A single crystal X-ray examination (a = 546.2, c= 1259.1 pm, space group D^-14/mmm) shows that the octahedral distortion of the [Cu304Cl2] 4 ~-network cannot be explained only by the JAHN-TELLER effect.
	Reference	(Z. Naturforsch. 31b, 405—407 [1976]; eingegangen am 24. November 1975)
	Published	1976
	Keywords	Strontium, Copper, Oxide Chloride, Crystal Structure, Coordination
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	Identifier	ZNB-1976-31b-0405
	Volume	31

6	Author	K. Diehl, D. Khodadadeh, J. Kummer, Strähle	Requires cookie*
	Title	L
	Abstract	Upon use of a synthetic method reported earlier by us respective alloys of Na/Sn, Na/Ge and Na/Sb are dissolved in ethylene-diamine and the title compounds precipitated from the solutions in high yield. By recrystal-lisation well shaped, stable crystals are obtain-ed. The crystal structure of [Na4 • 7 en]Sn9 confirms the presence of a Sn9 4 ~-polyhedron which had been suggested by us on the basis of other investigations. The Sn9 4_ -polyhedron may be described as a distorted tricapped trigonal prism. Ethylenediamine is coordi-nated to Na+-ions exclusively.
	Reference	(Z. Naturforsch. 31b, 522—524 [1976]; eingegangen am 16. Februar 1976)
	Published	1976
	Keywords	Polyanionic Compounds, Germanium, Tin, Antimony, Crystal Structure
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	Identifier	ZNB-1976-31b-0522_n
	Volume	31

7	Author	Heinz-Joachim Hübner	Requires cookie*
	Title	KLAUS-JÜRGEN RANGE
	Abstract	Manganese MnGa2Se4 and MnGa2Te4 were prepared by direct synthesis from the elements at 900-1000 °C. MnGa2Se4 (Space group l!, a = 5.676(2) A, c = 10.760(3) A, z = 2) is iso-typic with CdGa2S4.
	Reference	(Z. Naturforsch. 31b, 886—887 [1976]; eingegangen am 12. März 1976)
	Published	1976
	Keywords	Gallium Selenide, Manganese Gallium Telluride, Synthesis, Crystal Structure
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	Identifier	ZNB-1976-31b-0886_n
	Volume	31

8	Author	R. Kipka, Hk Müller-Buschbaum	Requires cookie*
	Title	Über Oxocuprate, XVI Ba9Cu7015Cl2 mit Cu 2+ in neuer Koordination About Oxocuprates, XVI Ba9Cu7015Cl2 with Cu 2+ in a New Coordination
	Abstract	Single crystals of BagC^OisC^ were prepared and investigated by X-ray diffraction methods. They crystallize with hexagonal symmetry (a =1125.7; c = 585.3 pm, Space group D\|h-P6/mmm). Cu 2 + has the well-known square 0 2--coordination. The squares are connected to rings of 6-fold symmetry. Another Cu 2+ has a so for unknown coordination of 12 0 2 ~-neighbours. The differences in respect of other oxohalogenocuprates are discussed.
	Reference	(Z. Naturforsch. 31b, 1067—1069 [1976]; eingegangen am 24. März 1976)
	Published	1976
	Keywords	Barium, Copper Oxide Chloride, Crystal Structure
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	Identifier	ZNB-1976-31b-1067
	Volume	31

9	Author	Jürgen Weis, Herbert Schäfer, Günter Schön	Requires cookie*
	Title	Neue ternäre Telluride und Selenide der Alkalimetalle mit Elementen der 3. Hauptgruppe New Ternary Element(I)/Element(III)-Tellurides and Selenides
	Abstract	The new ternary compounds NaAlSe2, NaAlTe2, NaGaTe2 and KAlTe2 crystallize in the Tl I Tl III Se2-structure type. The analogous Tl-compounds build up the same structure but show a variable composition within the limits (NaJTli_a.)TlSe2 (Oca; <0.47) and (Ka.Tli_jr)TlSe2 (0 <x <0.56). The compounds KAlSe2, KGaSe2, KInSe2 and KGaTe2 crystallize in a new structure type.
	Reference	(Z. Naturforsch. 31b, 1336—1340 [1976]; eingegangen am 5. Juli 1976)
	Published	1976
	Keywords	Ternary Tellurides, Ternary Selenides, Crystal Structure
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	Identifier	ZNB-1976-31b-1336
	Volume	31

10	Author	Brigitte Eisenmann, Gerhard Savelsberg, Herbert Schäfer	Requires cookie*
	Title	Zur Darstellung und Kristallstruktur von Na2CuAs, K2CuAs und K2CuSb Preparation and Crystal Structure of Na2CuAs, K2CuAs and K2CuSb
	Abstract	The three new compounds crystallize orthorhombic, space group Cmcm with Na2CuAs: a = 8.86(2) A, b = 7.22(2) A, c = 5.34(2) A; K2CuAs: a = 10.02(2) A, b = 7.56(2) A, c = 5.89(2) A; KsCuSb: a = 10.50(2) A, b = 7.93(2) A, c = 6.23(2) A. There are Cu-E(V)-Cu-E(V)-zigzag-chains in the structure, in which the Cu-atoms are linearly bonded to the E(V)-atoms.
	Reference	(Z. Naturforsch. 31b, 1344—1346 [1976]; eingegangen am 15. Juli 1976)
	Published	1976
	Keywords	Intermetallic Compounds, Crystal Structure, Ternary Arsenides, Ternary Antimonides
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	Identifier	ZNB-1976-31b-1344
	Volume	31

11	Author	Helmut Rieskamp, Rainer Mattes	Requires cookie*
	Title	Fluorreiche Oxofluorovanadate(V): Die Kristallstruktur von [enH2] [VOF5]
	Abstract	The crystal structure of triclinic [enH2][VOF5], prepared in aqueous solution, has been determined from X-ray diffractometer data (i? = 0.076 for 527 reflections). The structure contains monomeric [VOFs] 2--ions. The bond distances are 1.54(1) Ä (terminal oxygen), 1.80(1) (average for the cis-fluorine atoms) and 2.10(1) Ä for the fluorine atom in trans-position to the terminal oxygen atom. This fluorine atom is involved in strong hydrogen bonds originating from the [NHaCH^CH^NEy 2 " 1 -cation with cisoid conformation. Earlier results about the existence of K2VOF5 could not be confirmed.
	Reference	(Z. Naturforsch. 31b, 1453—1455 [1976]; eingegangen am 2. August 1976)
	Published	1976
	Keywords	Oxopentafluorovanadates(V), Crystal Structure, Vibrational Spectra
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	Identifier	ZNB-1976-31b-1453
	Volume	31

12	Author	Gerhard Cordier, Herbert Schäfer	Requires cookie*
	Title	Neue intermetallische Verbindungen im arcJi-Ce202S-Strukturtyp New Intermetallic Compounds in the awfa"-Ce202S-Structure Type
	Abstract	The new intermetallic compounds CaMn2Sb2, SrMn2Sb2 and CaMn2Bi2 have been prepared and structurally characterized. They are isotypic and crystallize trigonal in the an^-Ce202S-structure with the lattice constants: CaMn2Sb2: a = 4.54(1), c = 7.48(1), c/a = 1.65. SrMn2Sb2: a = 4.56(1), c = 7.70(1), c/a = 1.69. CaMn2Bi2: a = 4.63(1), c = 7.64(1), c/a = 1.65.
	Reference	(Z. Naturforsch. 31b, 1459—1461 [1976]; eingegangen am 13. August 1976)
	Published	1976
	Keywords	Intermetallic Compounds, Crystal Structure, Ternary Antimonides, Ternary Bismutides
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	Identifier	ZNB-1976-31b-1459
	Volume	31

13	Author	J. B. Clark, Klaus-Jürgen Range	Requires cookie*
	Title	Crystal Structures of the High Pressure Phases ZnAs and CdAs
	Abstract	The structure of the high pressure compounds ZnAs and CdAs have been determined using Guinier film and counter methods. The compounds are orthorhombic, (space group Pbca; Z = 8), with a = 5.679(2) A, 6 = 7.277(4) A, c = 7.559(4) A and a = 5.993(4) Ä, b = 7.819(6) A,c = 8.011(6) A respectively. ZnAs and CdAs are isostructural with the normal pressure phases ZnSb and CdSb, which are related to the high pressure phase Si III. Structural relationships are discussed includ-ing the Si Ill-diamond structure relationship.
	Reference	(Z. Naturforsch. 31b, 158—162 [1976]; received October 29 1975)
	Published	1976
	Keywords	Zinc Arsenide, Cadmium Arsenide, High Pressure Phases, Crystal Structures
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	Identifier	ZNB-1976-31b-0158
	Volume	31

14	Author	Herbert Brunner, Reginald Gruehn	Requires cookie*
	Title	Synthesis and Structure of a New Polymorph of FeNb0 4
	Abstract	Three different polymorphs of FeNbC>4 were prepared by chemical transport. One of them is a new modification, which crystallisizes in the GaNb04-type, monoclinic, space group C2, o= 12.52 A; 6 = 3.83 A; c=6.67Ä; 107.5°. The detailed structure, composed of 2 X 2 'blocks' of corner shared metal-oxygen octahedra, was investigated by electron-diffraction and two-dimensional high resolution electron microscopy. Bisherige Untersuchungen an FeNb04,
	Reference	(Z. Naturforsch. 31b, 318—320 [1976]; eingegangen am 21. Oktober 1975)
	Published	1976
	Keywords	Iron Niobate, Crystal Structure, Electron Diffraction, High Resolution Electron Microscopy
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	Identifier	ZNB-1976-31b-0318
	Volume	31

15	Author	Peter Paetzold, Peter Böhm, Anette Richter, Ernst Scholl	Requires cookie*
	Title	Synthese, Basenaddition und Fragmentierung der 1.3.2-Dioxaborolan-4-one Synthesis, Addition of Bases, and Fragmentation of l,3,2-Dioxaborolane-4-ones
	Abstract	2,5,5-Triorgano-l,3,2-dioxaborolane-4-ones RB(-O-CO-CXY-O-) (2-6) can be prepared from a-hydroxycarboxylic acids XYC(OH)-COOH and dihalogenoorganoboranes RBHal2. They are much weaker Lewis acids than the 2-organo-l,3,2-dioxaborolane-4,5-diones RB(-O-CO-CO-O-) (1). The compounds 1 give 1:1 adducts with the bases DINO, MANO, PyO, and PSy, respectively; the crystal structure determination of If • DINO reveals a simple BO-coordination between the components. On electron impact, the chief fragmen-tation path is the elimination of C02 from compounds 1-6. The thermal degradation of 2-6 seems to be rather complicated in the liquid phase but is unique in the gaseous phase forming the compounds (RBO)3, CO, and XYC = 0.
	Reference	(Z. Naturforsch. 31b, 754—764 [1976]; eingegangen am 5. Dezember 1975/8. März 1976)
	Published	1976
	Keywords	Dioxaborolanones, Molecular Structure, Mass Spectra, Crystal Structure, Gas-phase Thermolysis
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	Identifier	ZNB-1976-31b-0754
	Volume	31

16	Author	MichaelB. Hursthouse, RobertA. Shaw, Keith Wait, MichaelW., Oods, HonSum Yu	Requires cookie*
	Title
	Reference	(Z. Naturforsch. 31b, 995—996 [1976]; received March 4/April 2 1976)
	Published	1976
	Keywords	Cyclotriphosphazadiene, if! NMR, X-ray, Crystal Structure, Double hydrogen-bonded tricycle
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	Identifier	ZNB-1976-31b-0995_n
	Volume	31

17	Author	T.Stanley Cameron, JamesD. Healy, RobertA. Shaw, Michael Woods	Requires cookie*
	Title
	Abstract	The structure of the title compound was determined by X-ray crystallography. The compound is a cyclic dimer with short N--O and N---S contacts.
	Reference	(Z. Naturforsch. 31b, 1421—1422 [1976]; received July 19 1976)
	Published	1976
	Keywords	X-ray, Crystal Structure, Phosphorus Acid-Base Cyclic Dimer, Hydrogen-Bond
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	Identifier	ZNB-1976-31b-1421_n
	Volume	31

18	Author	Eberhard Krämer, Reginald Gruehn	Requires cookie*
	Title	Beiträge zur Untersuchung anorganischer nichtstöchiometrischer Verbindungen, VI* Präparative und strukturelle Untersuchung von WNb15O40F und nahe benachbarten Defektstrukturen im System Nb205-W03-Nb02F Contributions to the Study of Inorganic Non-Stoichiometrie Compounds, VI* Preparative and Structural Investigations of WNb15O40F and Closely Related Defect Structures in the System Nb205-W03-Nb02F
	Abstract	In the quaternary system H-Nb20s-W03-Nb02F the phase WNbi504oF was prepared in form of light-yellow needles. The compound crystallizes in the monoclinic system with the unit cell dimensions a = 22.254 A, b = 3.829 A, c = 20.298 A and ß= 114.29°, space group C 2. Electron optical investigations showed the crystal structure containing 5 x 3 x co-blocks of Nb-(0, F)-octahedra, with metal atoms in tetrahedral positions located at the junctions of every four blocks. X-ray investigations showed a range of homogeneity between (O, F)/(W, Nb) = 2.556 <2.563 (WNbi5O40F) <2.571. The hypothetical phase WNbis047F2 with 6 x 3-blocks was found as a microdomain by electron microscopy.
	Reference	(Z. Naturforsch. 31b, 1569—1573 [1976]; eingegangen am 2. September 1976)
	Published	1976
	Keywords	System Nb20s-W03-Nb02F, Crystal Structures, Defect Structures, High Resolution Electron Microscopy
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	Identifier	ZNB-1976-31b-1569
	Volume	31

19	Author	Herbert Brunner, Reginald Gruehn, Wilhelm Mertin	Requires cookie*
	Title	an FeNblx029, FeNb29074 und TiNb14037 Contributions to the Study of Inorganic Non-Stoichiometric Compounds, V* Preparation and Electron Optical Investigation of FeNbn029, FeNb29 0 74 and TiNb14037
	Abstract	FeNbn029(m), FeNbn029(o) and two mixed oxides with the composition limits FeNb29074 and TiNbi4037 were prepared by chemical transport. The crystal structures of the compounds have been examined by two-dimensional high resolution electron-micro-scopy. They are composed of 'blocks' of (n x 3) corner shared octahedra and belong to a series of structure related compounds with the general formula Me3nOsra-3-Crystallo-graphic defects and the thermic behavior of the materials are discussed.
	Reference	(Z. Naturforsch. 31b, 549—553 [1976]; eingegangen am 5. Januar 1976)
	Published	1976
	Keywords	Iron-niobium-oxides, Titan-niobium-oxides, Chemical Transport, Crystal Structures, High Resolution Electron Microscopy
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	Identifier	ZNB-1976-31b-0549
	Volume	31