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181Author    W. S. SheldrickRequires cookie*
 Title    Das kantenverknüpfte tritetraedrische Selenostannat(IV)-Anion [Sn 3 Se 8 ] 4 . Darstellung und Struktur von K 4 Sn 3 Se 8 The Edge-bridged Tritetrahedral Selenostannate(IV) Anion [Sn 3 Se 8 ] 4-. Preparation and Structure of K 4 Sn 3 Se 8  
 Abstract    The potassium selenostannate(IV) K4Sn3Ses has been prepared by methanolothermal reaction of K2C03 with elemental Sn and Se at 190 °C and its structure established by X-ray structural analysis. The unit cell contains isolated [Sn3Se8] 4-anions consisting of a central SnSe4-tetrahedron edge-bridged to two further tetrahedra. Crystallographic D2-symmetry is observed for these an-ions. The four-membered rings are markedly distorted with Sn —Se bond distances of 2.520(1) to the central tin atom as compared to long Sn-Se distances of 2.622(1) Ä to the tin atoms of the outer tetrahedra. The terminal Sn —Se bonds have a length of 2.473(1) Ä. 
  Reference    Z. Naturforsch. 43b, 249—252 (1988); eingegangen am 30. November 1987 
  Published    1988 
  Keywords    Potassium Selenostannate(IV), Methanolothermal Synthesis, Crystal Structure 
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 TEI-XML for    default:Reihe_B/43/ZNB-1988-43b-0249.pdf 
 Identifier    ZNB-1988-43b-0249 
 Volume    43 
182Author    FranzA. Mautner, Harald Krischner, Christoph KratkyRequires cookie*
 Title    Darstellung und Kristallstruktur von Zinkazid * 4-Methylpyridin Preparation and Crystal Structure of Zinc Azide * 4-Methylpyridine  
 Abstract    Zinc azide • 4-methylpyridine (1) is formed by the reaction of zinc azide with the corresponding pyridine in aqueous solution. The crystal structure was determined by single crystal X-ray diffrac-tion methods. The crystals of 1 are monoclinic, space group C2/c, Z = 4, a = 1085.5(2), b = 1692.7(11), c = 619.7(6) pm, ß = 113.47(5)°. Each zinc atom is surrounded by five nitrogen atoms (four from azide groups and one from the pyridine adduct) in a distorted trigonal bipyramidal fashion. The ZnN5-polyhedra share common edges to form chains along the crystallographic c-axis. 
  Reference    Z. Naturforsch. 43b, 253—256 (1988); eingegangen am 22. Oktober/3. Dezember 1987 
  Published    1988 
  Keywords    Azide, Crystal Structure, 4-Methylpyridine, Pentacoordination, Zinc 
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 TEI-XML for    default:Reihe_B/43/ZNB-1988-43b-0253.pdf 
 Identifier    ZNB-1988-43b-0253 
 Volume    43 
183Author    Christine Pues, Gerhard Baum, Werner Massa, Armin BerndtRequires cookie*
 Title    Struktur eines Homoborirens Structure of a Homoborirene  
 Abstract    Trapping of methyleneborane 7a with 3-hexine yields the stable 1,2-dihydroborete la. Strong folding (148.8°) along the 1,3-diagonal. the short 1.3-distance (191.5 pm), a lengthened 3,4-and a shortened 1,4-bond prove the homoborirene nature of la. 
  Reference    Z. Naturforsch. 43b, 275—279 (1988); eingegangen am 6. November/8. Dezember 1987 
  Published    1988 
  Keywords    Stable 1, 2-Dihydroborete, Crystal Structure 
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 TEI-XML for    default:Reihe_B/43/ZNB-1988-43b-0275.pdf 
 Identifier    ZNB-1988-43b-0275 
 Volume    43 
184Author    Christoph KratkyRequires cookie*
 Title      
 Abstract    The crystal structure of Rb2Ca(N3)4-4H20 has been determined by single crystal X-ray methods. The compound is isotypic with K2Ca(N3)4-4H20 and crystallizes in the orthorhombic space group Ccca, Z = 4, a = 1949.1(12) pm, b = 1099.5(3) pm, c — 622.2(1) pm. 
  Reference    Z. Naturforsch. 43b, 497—498 (1988); eingegangen am 23. November 1987/14. Januar 1988 
  Published    1988 
  Keywords    Azide, Calcium, Crystal Structure, Hydrate, Rubidium 
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 TEI-XML for    default:Reihe_B/43/ZNB-1988-43b-0497_n.pdf 
 Identifier    ZNB-1988-43b-0497_n 
 Volume    43 
185Author    Rupert MarxRequires cookie*
 Title    Darstellung und Kristallstruktur von Cäsiumhydroxid mit Methanol CsOH * CH 3 OH Properties and Crystal Structure of Cesium Hydroxide with Methanol CsOH * CH 3 OH  
 Abstract    Cesium hydroxide methanol, CsOHCH3OH, was obtained by recrystallising Cs0H H:0 in a mixture of liquid ammonia and methanol in sealed quartz ampoules. The colourless, air sensitive crystals are hexagonal (space group P63/m) with a = 1362 pm, c = 430 pm, Z = 6. A structural model derived by Patterson methods was refined to R = 0.033. The structure comprises of trigonal prismatic columns of Cs + and hydrogen bonded chains of OH^ and CH,OH along the c-axis. This leads to the tricapped prisms filled with Cs + and hydrophobic channels formed by the CH, groups. 
  Reference    Z. Naturforsch. 43b, 521—524 (1988); eingegangen am 14. Oktober/7. Dezember 1987 
  Published    1988 
  Keywords    Cesium Hydroxide Methanol, Synthesis, Crystal Structure 
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 TEI-XML for    default:Reihe_B/43/ZNB-1988-43b-0521.pdf 
 Identifier    ZNB-1988-43b-0521 
 Volume    43 
186Author    Siegfried PohlRequires cookie*
 Title    Thioharnstoff-Derivate als Liganden in  
 Abstract    Eisen-Komplexen: Synthese und Kristallstrukturen von [FeI2L2l, [Fe2I4L3], (L -L) 2+|FeI4-| 2 (L = (M e2N)2CS) und |Fe2I4(C6H l0(N H -C S -N H M e)2)2| mit einer Notiz zu [FeIL3]+|Fe4S4I3L]-T hiourea D erivatives as Ligands in Iro n Complexes: Syntheses and C rystal Structures o f [F eI2L2], [ F e J 4 L3], (L -L) 2 +[FeI4-] 2 (L = (M e2N)2CS) an d [Fe2I4(C 6H 10(N H -C S -N H M e) 2)2] and a N o te on [F eIL 3]+[F e4S4I3L]~ U lrich Bierbach, W olfgang Saak, D etlev H aase u nd [FeI2L2] (1) and [Fe2I4L3] (2) are obtained from the reaction o f F e l2 and 
  Reference    (Z. Naturforsch. 45b, 45 [1990]; eingegangen am 26 Juli / 18. September 1989) 
  Published    1990 
  Keywords    Thiourea Complexes, Iron C om pounds, Synthesis, Crystal Structure 
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 TEI-XML for    default:Reihe_B/45/ZNB-1990-45b-0045.pdf 
 Identifier    ZNB-1990-45b-0045 
 Volume    45 
187Author    Klaus-Jürgen Range, Franz Rau, Ulrich KlementRequires cookie*
 Title    Hochdrucksynthese und Strukturverfeinerung von S r V 0 3, Sr2V 0 4 und Sr3V20 7 High-Pressure Synthesis and Structure Refinement of S rV 03, Sr2V 0 4, and Sr3V20 7  
 Abstract    Single crystals o f S rV 0 3, Sr2V 0 4 and Sr3V20 7 have been obtained by high-pressure reactions in a m odified belt-type apparatus. The crystal structures, refined from diffractometer data, are as follows; S rV 03, perovskite type. Pm 3m, a = 3.8408(3) A, R = 0.017, /?w = 0.018, com posi­ tion from occupancy refinement o f oxygen positions SrV O ,93(2); Sr2V 0 4, K 2N iF 4 type, I 4/m m m , a = 3.837(1), c = 12.569(1) Ä, R = 0.014, R w = 0.017; Sr3V ,0 7, Sr3T i,0 7 type, I 4/m m m , a = 3.839(1), c = 20.262(2) Ä, R = 0.020, R w = 0.029. 
  Reference    Z. Naturforsch. 46b, 1315—1318 (1991); eingegangen am 10. Mai 1991 
  Published    1991 
  Keywords    Strontium Vanadium(IV) Oxides, High-Pressure Synthesis, Crystal Structure 
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 TEI-XML for    default:Reihe_B/46/ZNB-1991-46b-1315.pdf 
 Identifier    ZNB-1991-46b-1315 
 Volume    46 
188Author    Z. NaturforschRequires cookie*
 Title    Die isoelektronischen Molekülkomplexe TiCl3(NPPh3) und TiCl3(OSiPh3)  
 Abstract    The Isoelectronic M olecular C om plexes TiC l3(N P P h 3) and T iC l3(O SiPh3) Thilo R übenstahl, D o ro th ea W olff von G udenberg, F ra n k W eller, K u rt D ehnicke* TiCl3(NPPh3) and TiCl3(OSiPh3) have been prepared from titanium tetrachloride and Me3SiNPPh3 and HOSiPh3, respectively. Both complexes were characterized by IR spectrosco­ py and by crystal structure determmations. TiCl3(N PPhj): Space group R3, Z = 6, structure analysis with 959 observed unique reflec­ tions, R = 0.039. Lattice dimensions at -6 8 °C: a = b = 1370.5(7), c = 1845.9(9) pm. TiCl}(OSiPh3): Space group P2,/c, Z = 8, structure analysis with 4549 observed unique re­ flections, R = 0.049. Lattice dimensions at 19 °C: a = 2127.7(2), b = 947.2(1), c = 2136.8(1) pm, ß = 105.081(5)°. Both complexes form monomeric molecules in which the titanium atom is tetrahedrally coordinated by three chlorine atoms, the nitrogen atom of the phosphorone iminato ligand and the oxygen atom of the silyloxy group, respectively. The bond lengths TiN of 171.9(4) pm and TiO of 171.0(3) (in average) correspond to double bonds. 
  Reference    (Z. Naturforsch. 49b, 15—20 [1994]; eingegangen am 7. September 1993) 
  Published    1994 
  Keywords    Monomerie Titanium Complexes, Synthesis, Crystal Structure 
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 TEI-XML for    default:Reihe_B/49/ZNB-1994-49b-0015.pdf 
 Identifier    ZNB-1994-49b-0015 
 Volume    49 
189Author    Z. NaturforschRequires cookie*
 Title    Gold-Alkalimetallsysteme, III. Hochdrucksynthese und Kristallstruktur von Rb3Au7 [1]  
 Abstract    G old-A lkali M etal-System s, III. H igh Pressure Synthesis and C rystal S tructure o f R b 3A u 7 [1] K laus-Jürgen Range*, G eorg H. G rosch, F ran z R au, U lrich K lem ent The intermetallic compound Rb3Au7 could be synthesized from the elements at 4 kbar, 700 °C in a modified Belt-type apparatus. The structure (Cmmm; a = 5.579(1), b = 13.267(5), c = 7.265(2) Ä; Z = 2; R = 0.035, Rw = 0,031) comprises three crystallographically independ­ ent Au atoms, arranged in layers along the c-axis. The shortest interatomic distances are A u -A u = 2.633Ä, A u -R b = 3.438Ä and R b -R b = 3.622Ä. Im System R ubidium -G old [2,3] sind bisher n u r die V erbindungen R b A u [4] und R b A u 5 [5,6] ein­ deutig nachgewiesen und strukturell c h a ra k te ri­ siert w orden. Die Existenz von R b A u 2 [2,3,7] ko n n te bisher nicht verifiziert werden. D ie h o m o ­ logen V erbindungen N aA u 2 [8] und K A u 2 [9] sind Lavesphasen und kristallisieren im kubischen M gC u2-Typ bzw. im hexagonalen M g Z n 2-Typ. Bei unseren V ersuchen zur H ochdrucksynthese einer L avesphase R b A u 2 fanden wir nun eine bisher im System R b -A u unbekannte Phase d er Z u sam ­ m ensetzung R b 3A u 7, über die im folgenden berich­ tet w ird. 
  Reference    (Z. Naturforsch. 49b, 27—30 [1994]; eingegangen am 6. Juli 1993) 
  Published    1994 
  Keywords    Trirubidium Heptagold, High Pressure Synthesis, Crystal Structure 
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 TEI-XML for    default:Reihe_B/49/ZNB-1994-49b-0027.pdf 
 Identifier    ZNB-1994-49b-0027 
 Volume    49 
190Author    Thom As Schleid, Falk LissnerRequires cookie*
 Title    Oxidsulfidchloride der Lanthanide vom Typ M 4OS4Cl2 (M = L a-N d ) M 4OS4Cl2-Type Oxysulfide Chlorides of the Lanthanides (M = L a -N d )  
 Abstract    Oxysulfide chlorides, M4OS4Cl2, o f the lanthanides (M = L a -N d) are obtained upon the oxi­ dation o f the metals with sulfur in the presence o f MOC1 (or M 20 3) and MC13 in appropriate molar ratios. Additional NaCl or an excess o f MC13 serving as a flux provide even single crys­ talline material after reactions at 850 °C for seven days in sealed tantalum capsules. The crys­ tal structure o f M4OS4Cl2 (hexagonal, P 6 3mc, no. 186, Z = 2; M = La: a = 933.19(3), c = 701.22(4) pm, c/a = 0.7514, R = RH = 0.020; M = Ce: a = 925.49(3), c = 694.13(3) pm, c/a = 0.7500; M = Pr: a = 919.72(4), c = 688.53(4) pm, c/a = 0.7486; M = Nd: a = 914.25(4), c = 683.12(4) pm, c/a = 0.7472, R = 0.022, Rw = 0.019) contains isolated 0 2--centered (M 3+)4 te-trahedra which are surrounded by twelve S2-and six Cl-, capping vertices, edges, and faces o f each tetrahedron and linking to other [OM4] units. Basically, the structure is identical to that o f Ba4OCl6 if Ba2+ is substituted by M 3+ and 2/3 o f the CL anions are replaced by S2-to secure charge neutrality in M4OS4Cl2. Different models for the C L /S 2-replacement are presented on the basis o f comparisons o f the Madelung part o f the lattice energy (M A PLE) with the M APLE sum o f the binaries (M 20 3, M 2S3, and MC13). 
  Reference    Z. Naturforsch. 49b, 340 (1994); eingegangen am 27. September 1993 
  Published    1994 
  Keywords    Lanthanides, Oxysulfide Chlorides, Synthesis, Crystal Structure 
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 TEI-XML for    default:Reihe_B/49/ZNB-1994-49b-0340.pdf 
 Identifier    ZNB-1994-49b-0340 
 Volume    49 
191Author    Enno Lork, Ulrich Behrens, Detlef Viets, Rüdiger MewsRequires cookie*
 Title    Die Kristallstruktur von A sF5 0 S C F 2S (0 2)CF2 The Crystal Structure of A sF 5 * 0& C F2S (0 2)C F 2  
 Abstract    The crystal structure of AsF5 • 0$C F2S(02)CF2 is reported. It crystallizes in the orthorhombic space group Pnma with a = 749.1(3) pm, b = 770.6(3) pm and c = 1630.0(5) pm, V = 960.9(6)-106 pm3, Z = 4. Einleitung Intensiv ist in den letzten Jähen die Chemie der Dithietane F 2tS (O x)FyC F 2S(Ov)Fw im Arbeitskreis Sundermeyer [1] und von uns [2] untersucht wor­ den. Ein Ziel unserer Arbeiten war es, das D onor­ verhalten dieser Systeme gegenüber Fluor-Lewis-Säuren (AsF5, SbF5, BF3) zu untersuchen und die Grenzen zwischen Carbenium-, Sulfoniumsalz-und Addukt-Bildung zu erkennen. Durch Strukturun­ tersuchungen konnte belegt werden, daß AsF5 aus F2CSCF2S F " abstrahiert unter Bildung des cycli­ schen Carbeniumions FCSC F2S+ [lb]; nach IR-und 1' 9F-N M R -U ntersuchungen führt die analoge Umsetzung von F 7SCF?S(0")C F7 (n = 0 -2) zu Sul-foniumsalzen FSC F2S(0")CF2+ [lc], während in Sulfoxid-Derivaten die Lewis-Säure an den Sauer­ stoff unter Bildung von F 2CS(0")CF2S 0 • M F 5 (n = 0 -2) addiert wird. In der vorliegenden Arbeit be­ richten wir über die Struktur des Adduktes F2C S 0 2C F2S 0 • A sF5 (2 a). 
  Reference    Z. Naturforsch. 49b, 422—424 (1994); eingegangen am 21. Oktober 1993 
  Published    1994 
  Keywords    Dithietanes, Sulfoxides, Adducts with Lewis-Acids, Crystal Structure 
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 TEI-XML for    default:Reihe_B/49/ZNB-1994-49b-0422_n.pdf 
 Identifier    ZNB-1994-49b-0422_n 
 Volume    49 
192Author    Andreas Ahle, K. Urt Dehnicke, CäciliaM. Aichle-Mössmer, Joachim SträhleRequires cookie*
 Title    Synthesis and Crystal Structure of [Na( 12-Crown-4)2]2[Fe4Se4Cl4]  
 Abstract    [N a(12-crow n-4)2]2[Fe4Se4Cl4] has been pre­ pared by the reaction o f FeCl2 with N a2Se4 in di-methylform amide solution in the presence o f 12-crown-4 as dark red crystals, which were char­ acterized by a_ crystal structure determination. Space group P 1, Z = 2, 6295 observed unique re­ flections, R = 0.085. Lattice dim ensions at 20 °C: a = 1397.3(3), b = 1501.8(4), c = 1570.1(4) pm, a = 85.86(2)°, ß = 64.06(2)°, y = 65.01(2)°. The structure consists o f [Na(12-crown-4)2]+ cations and cuban-like anions [Fe4Se4Cl4]2" with Fe — Fe contacts o f 282.8(3) pm. 
  Reference    Z. Naturforsch. 49b, 434 (1994); eingegangen am 30. September 1993 
  Published    1994 
  Keywords    Tetranuclear Iron Selenium Cluster Dianion, Synthesis, Crystal Structure 
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 TEI-XML for    default:Reihe_B/49/ZNB-1994-49b-0434_n.pdf 
 Identifier    ZNB-1994-49b-0434_n 
 Volume    49 
193Author    Klaus StöweRequires cookie*
 Title    Zur Struktur und Dotierung von Selenosilikaten: die Kristallstruktur von Er2S e S i0 4 und Er3 75Ca0 25Se2 75C10 25Si20 7 Structure and Doping of Seleno Silicates: the Crystal Structures of Er2SeSi04 and E r3 7^CaQ 2$Se2 ^C Iq ^Si^O-y  
 Abstract    Well-shaped brown and pink isometric crystals were obtained as by-products o f the syn­ thesis o f erbium selenides from the elements in evacuated and sealed silica ampoules with graphite inlets. They could be identified as erbium seleno m ono-and disilicates by energy dis­ persive X-ray fluorescence and X-ray structure determination. The monosilicate Er2S e S i0 4 crystallizes isotypically to N d 2S e S i0 4 in the space group Pbcm with the lattice parameters a = 600.2(2), b = 688.0(2), c = 1075.2(2) pm and represents the second known seleno inosilicate o f the rare earths. From X-ray structure analysis an isotypic relation between the disilicate Er3 75Ca0 25Se2 75C10 25Si20 7 and the com pound Sm4S3Si2O v was found, the former crystallizing in the space group 14,/am d with the lattice parameters a -1177.7(2) and c = 1376.5(2) pm. The doping o f the sorosilicate with the elements Ca and Cl originated from contam inations in the graphit inlets used in the procedure. 
  Reference    Z. Naturforsch. 49b, 733—7 (1994); eingegangen am 13. Januar 1994 
  Published    1994 
  Keywords    Erbium Seleno Silicates, Crystal Structures, Doping Effects 
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 TEI-XML for    default:Reihe_B/49/ZNB-1994-49b-0733.pdf 
 Identifier    ZNB-1994-49b-0733 
 Volume    49 
194Author    S. Möhr, Hk Müller-BuschbaumRequires cookie*
 Title    Ein gemischtvalentes Oxometallat mit Cr3+ anstelle von Ti3+: Ba2Ti4+Cr20 13  
 Abstract    Single crystals of Ba2Ti4+C r20 13 w ere p rep a red by C 0 2-L A S E R h igh te m p era tu re r ea ctio n s and in v estig a te d by X -ra y w o rk . T h e c o m p o u n d c ry sta llize s w ith m o n o c li­ nic sym m etry, a = 15.0 1 8 5 , b = 3 .9 4 1 9 , c -9 .0 7 6 4 Ä , ß = 9 8 .1 3 7 °, Z = 2. B a 2T i4Cr20 13 is iso ty p ic to N a 2T i60 13. T h e crystal stru ctu re is d isc u sse d w ith r e sp e ct to o rd ered or d iso rd ered d istrib u tio n s o f T i4+ and C r3+ u sin g c a lc u la tio n s o f C o u lo m b term s o f la ttice energy. It is sh o w n , th at th e sta b ility o f th is stru ctu re ty p e w ill b e d e c r e ­ ased by rep la ce m en t o f N a + by io n s w ith h ig h er o x id a tio n sta tes. 
  Reference    Z. Naturforsch. 49b, 911 (1994); eingegangen am 17. Februar 1994 
  Published    1994 
  Keywords    Barium, Titanium, Chromium, Oxide, Crystal Structure 
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 Identifier    ZNB-1994-49b-0911 
 Volume    49 
195Author    S. Möhr, Hk Müller-BuschbaumRequires cookie*
 Title    Uber ein gemischtvalentes Oxoniobat mit planaren Polygonen um Niob und Barium: BaNb2+Nb2+0 6 On a Mixed Valent Oxoniobate Containing Planar Polygons A round Niobium and Barium: BaNb2 +N b^+0 6  
 Abstract    Single crystals of B aN b30 6 were prepared by C 0 2-LA SER high temperature technique. The compound crystallizes with trigonal symmetry C fv-R 3 m , a = 11.4333, c -3.4949Ä , Z = 3. The new structure type is characterized by planar N b 0 4 and planar B a 0 6 polygons. The results are discussed with respect to related compounds like Ca0.75 Nb3O6 or N aNb30 6. 
  Reference    Z. Naturforsch. 49b, 915 (1994); eingegangen am 17. Februar 1994 
  Published    1994 
  Keywords    Barium, Niobium, Oxide, Synthesis, Crystal Structure 
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 TEI-XML for    default:Reihe_B/49/ZNB-1994-49b-0915.pdf 
 Identifier    ZNB-1994-49b-0915 
 Volume    49 
196Author    Hk Müller-Buschbaum, S. FrenzenRequires cookie*
 Title    Zur  
 Abstract    Kenntnis von EuBeGd20 5 mit einem Beitrag über Phasen der Zusammensetzung M1 _xM'A .BeLn20 5 : Ca0,4Sr0,6BeSm2O5, Ba0,25Ca0,75BeNd2O5 und Ba0,36Sr0,64BeNd2O5 On E uB eG d20 5 and on Phases of the Composition M 1_^M'xBeLn20 5: Ca0,4Sr06BeSm2O 5, Bao,2sCao,75 BeNd2 0 5 and Ba0 3 6 Sr0,64BeNd2O5 Single crystals of (I): E uB eG d20 5, (II): Ca0,4Sr0ABeSm 20 5, (III): Ba0,25 Ca()75B eN d2O 5 and (IV): Ba<)3 6Sr()64B eN d2O s were prepared by (I): plasma torch and (II)-(IV): C 0 2-LASER technique. X-Rayo investigations lead to (I) monoclinic (space group C 2h-P2j/c, a = 7.126, b = 6.457, c = 9.394 A, ß = 90.40°) and (I I)-(I V) orthorhombic symmetry (D ^ -P n m a). (II: a = 9.454, b = 7.142, c = 6.490 A; III: a = 9.508, b = 7.188, c = 6.531 A; IV: a = 9.642, b = 7.295, c = 6.614 A). In contrary to the phases M j^ M '^ B eL ^ O s, E uBeG d2Os is characterized by an ordered distribution of Eu2+ and G d3+ inside o f the Kagome network. 
  Reference    Z. Naturforsch. 49b, 919 (1994); eingegangen am 28. Februar 1994 
  Published    1994 
  Keywords    Alkaline Earth, Beryllium, Rare Earth, Oxide, Crystal Structure 
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 Identifier    ZNB-1994-49b-0919 
 Volume    49 
197Author    D. Osterloh, Hk Müller-BuschbaumRequires cookie*
 Title    Zur Kenntnis von SrCo2V 208 und SrCo2(A s0 4)2 On SrCo2V20 8 and SrCo2(A s 0 4)2  
 Abstract    SrCo2V20 8 (I) and SrCo2(A s 0 4)2 (II) were prepared by crystallization from melts and investigated by X-ray single crystal technique. (I) is isotypic to the SrNi2V 20 8-type and crys­ tallizes with tetragonal symmetry, space group Cly-14-icd, a = 12.267; c = 8 .4 2 4 Ä ; Z = 8. (II) is iso ty p ic to th e la te ly fo u n d S r N i2(P 0 4) 2, sp a c e g ro u p C J -P 1 , a = 5.713; b = 6.903; c = 9.417 A ; a = 110.48; ß = 101.43; 
  Reference    Z. Naturforsch. 49b, 923 (1994); eingegangen am 28. Februar 1994 
  Published    1994 
  Keywords    Strontium, Cobalt, Vanadium, Arsenic, Oxide, Crystal Structure 
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 TEI-XML for    default:Reihe_B/49/ZNB-1994-49b-0923.pdf 
 Identifier    ZNB-1994-49b-0923 
 Volume    49 
198Author    Z. NaturforschRequires cookie*
 Title    NaK9Tl13: Eine neue Verbindung an der Zintl-Grenze mit isolierten, von Thallium besetzten Tl17-Ikosaedern  
 Abstract    NaK9T l13 (a = 1152.0(1) pm, Im 3, Z = 1, RI -0.029, wR2 = 0.0724) has been prepared from the elements and characterized by single crystal X-ray diffraction. The title compound contains isolated T l12 icosahedra, which are centered by T1 atoms. The icosahedra are in an a-W-type arrangement. 
  Reference    Z. Naturforsch. 49b, 935 (1994); eingegangen am 14. Februar 1994 
  Published    1994 
  Keywords    Crystal Structure, Intermetallic Compound, Sodium, Potassium, Thallium 
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 TEI-XML for    default:Reihe_B/49/ZNB-1994-49b-0935.pdf 
 Identifier    ZNB-1994-49b-0935 
 Volume    49 
199Author    W. S. Sheldrick, B. SchaafRequires cookie*
 Title    Schichtstruktur £, [Te6~] RbTe6, a Polytelluride with Layer Structure ^,[Te6_]  
 Abstract    Reaction of Rb2C 0 3 with Te in M ethanol at 160 °C in the presence of G e yields the polytellu­ ride RbTe6, the structure o f which has been deter­ mined by X-ray structural analysis. The poly­ anions (£,[Te6~] contain Te6 rings with a chair conformation, which are connected via four T e-T e bonds into a layer structure. A T structure is exhibited by the resulting TeTe3 units. The Rb cations adopt positions betw een neighbouring parallel anion layers and are surrounded by 12 Te atoms in their first coordination sphere. 
  Reference    Z. Naturforsch. 49b, 993—9 (1994) 
  Published    1994 
  Keywords    Rubidium Polytelluride, Methanolothermal Synthesis, Crystal Structure 
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 TEI-XML for    default:Reihe_B/49/ZNB-1994-49b-0993_n.pdf 
 Identifier    ZNB-1994-49b-0993_n 
 Volume    49 
200Author    F.-D Martin, Hk Müller-BuschbaumRequires cookie*
 Title    Synthese und Kristallstruktur von NaM g1?64Cu0 ,36^3^10 Synthesis and Crystal Structure of NaM glt64Cuoi36V 3 0 1o  
 Abstract    Single crystals of NaMg] 64Cu().36V 3O 10 have been prepared by heating mixtures of Na2C 0 3, M gC 03, CuO and V 20 5 above the melting point. The yellow crystals show triclinic symmetry, space group Cj-PT, a = 6.726(8), b = 6.743(7), c = 9.625(2) Ä , a = 100.705(9), ß -104.57(1), y = 101.700(9)°, Z = 2. N aM g164Cu0.36V 3O 10 represents a new structure type showing V 3O 10 groups, a statistical distribution of Mg2+ and Cu2+ on two point positions, and N a+ in an irregular coordination. 
  Reference    Z. Naturforsch. 49b, 1329—1333 (1994); eingegangen am 6. Mai 1994 
  Published    1994 
  Keywords    Sodium Magnesium, Copper, Vanadium Oxide, Crystal Structure 
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 TEI-XML for    default:Reihe_B/49/ZNB-1994-49b-1329.pdf 
 Identifier    ZNB-1994-49b-1329 
 Volume    49 
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