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1Author    Ingmar Persson, Magnus Sandström, Haruhiko Yokoyama, Monika Chaudhry, JapanRequires cookie*
 Abstract    tr u c tu r e o f th e S o lv a te d S tr o n tiu m a n d B a riu m I o n s in A q u e o u s, D im e th y l S u lfo x id e a n d P y r id in e S o lu tio n , a n d C r y s ta l S tr u c tu r e o f S tr o n tiu m a n d B a r iu m H y d r o x id e O c t a h y d r a te Dedicated to Prof. Hitoshi Ohtaki on the occasion of his 60th birthday Single crystal X-ray data, collected at 298 K, are used to redetermine the crystal structure of the non-isomorphic compounds [Sr(H20)8](0H)2 and [Ba(H20)8](0H)2. The eight water oxygen atoms form distorted Archimedean antiprisms around the octahydrated metal ions with mean metal ion-oxygen distances 2.62 and 2.79 Ä for strontium and barium, respectively. A second coordination shell of 24 hydrogen-bonded oxygen atoms with mean metal ion-oxygen distances M • • • O" 4.76 and 4.80 A, respectively, is observed. The hydroxide ions in both structures have an unusual hydrogen bond arrangement with 5 bonds accepted and one donated. The structure of the solvated strontium and barium ions in aqueous, dimethyl sulfoxide and pyridine solutions has been studied by means of large angle X-ray scattering and extended X-ray absorption fine structure spectroscopy techniques. In aqueous solution independent determinations of the first-sphere metal-oxygen coordination by the two techniques resulted in the bond lengths Sr-O 2.63 (2) and Ba-O 2.81 (3) A, and for both metal ions a hydration number of 8.1 (3). The second coordination spheres are very diffuse with only about 13 water molecules at similar M • • • O" distances as in the crystal structures and 2-3 water molecules closer to the metal ions. In dimethyl sulfoxide solution both ions were found to coordinate 6.0 (5) solvent molecules with the distances Sr-O 2.54(1), Sr -S 3.77(1) A, and Ba-O 2.76(1), Ba -S 3.99(1) A. For the solvated ions in pyridine solution EXAFS measurements yielded the distances Sr-N 2.57 (2) and Ba-N 2.78 (3) A, with a probable solvation number of 6. Correlations of hydration enthalpies and partial molar volumes with experimental M-O bond distances in aqueous solution are used to discuss hydration numbers and bond character for all of the alkaline earth metal ions. 
  Reference    Z. Naturforsch. 50a, 21—37 (1995); received November 8 1994 
  Published    1995 
  Keywords    Barium, Strontium, Hydration, Solvation, Structure 
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 TEI-XML for    default:Reihe_A/50/ZNA-1995-50a-0021.pdf 
 Identifier    ZNA-1995-50a-0021 
 Volume    50 
2Author    Ch LangRequires cookie*
 Abstract    Single crystals of LiBa2Cu30 6 have been pre­ pared by recrystallization from melts in a stream of dry Argon as well as by spontaneous CO 2-LASER heating. It crystallizes with orthorhom bic symmetry, space group -Fmmm, a = 8,219(2), b = 11,520 (2), c = 14,284(3) A, Z = 8. The crystal structure is isotypic to NaBa2Cu30 6. 
  Reference    Z. Naturforsch. 50b, 681—683 (1995); eingegangen am 19. September 1994 
  Published    1995 
  Keywords    Lithium, Barium, Copper, Oxide 
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 TEI-XML for    default:Reihe_B/50/ZNB-1995-50b-0681_n.pdf 
 Identifier    ZNB-1995-50b-0681_n 
 Volume    50 
3Author    Silke Busche, K. Arsten BluhmRequires cookie*
 Title    Synthese und Kristallstruktur von Dibariumzink-bis(cyclotriborat) Ba2Zn(B30 6)2  
 Abstract    Single crystals of the new compound Ba2Zn(B30 6)2 were obtained by using a B20 3 flux technique. They crystallize in an as yet unknown structure type. X-ray investigations led to space group Cj'-Pl (Nr.2) with lattice parameters a = 715.5(2), b = 720.5(2), c = 1178.9(4), a = 78.96(2)°, /3 = 85.45(2)°, j = 60.12(1)°, Z = 2. The structure is characterized by iso­ lated (B30 6)3_-rings and contains two ninefold coordinated Ba-sites. Zn2+ is tetrahedrally coordinated by oxygen. The relation to the crystal structures of high-temperature BaB20 4 and Ba2Ca(B30 6)2 is discussed. 
  Reference    Z. Naturforsch. 51b, 309—312 (1996); eingegangen am 26. September 1995 
  Published    1996 
  Keywords    Barium, Zinc, Borate, Crystal Structure 
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 TEI-XML for    default:Reihe_B/51/ZNB-1996-51b-0309.pdf 
 Identifier    ZNB-1996-51b-0309 
 Volume    51 
4Author    J. Feldmann, Hk Müller-BuschbaumRequires cookie*
 Title    Kristallstrukturuntersuchung am Barium-Yanadyl-Vanadat: Ba2(V 0)V 20 8 Crystal Structure Investigation of the Barium Vanadyl-Vanadate: Ba2(V 0 )V 20 8  
 Abstract    Single crystals of Ba2(V 0)V 20 8 have been prepared by solid state reactions of Ba2V 20 7, V 9O 1 and V ^ 05 in sealed silica tubes. This compound crystallizes with monoclinic symmetry, space group C 1 -P 2 ,, a = 8.1174(9), b = 5.9699(9), c = 9.2903(9) A , ß = 113.94(1)°, Z = 2. V 5+ shows tetrahedral coordination. V 4+ inside ^ [V (3)0 4] chains is characterized by a square pyramidal coordination with a short apical V-O distance of 1.6 A typically for vanadyl groups. Ba2(V 0)V 20 8 represents a new structure type and is not isotypic to Sr2(V 0)V 20 8. 
  Reference    Z. Naturforsch. 51b, 489—4 (1996); eingegangen am 22. August 1995 
  Published    1996 
  Keywords    Barium, Vanadium, Oxide, Crystal Structure 
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 TEI-XML for    default:Reihe_B/51/ZNB-1996-51b-0489.pdf 
 Identifier    ZNB-1996-51b-0489 
 Volume    51 
5Author    OctahedraC. Wadewitz, Hk Müller-BuschbaumRequires cookie*
 Title    Ba  
 Abstract    (V0)4(As0 4)2(As20 7): Ein neues Divanadyl(IV)-Arsenat mit flächenverknüpften V20 8+1-Oktaederdoppeln Ba(V0)4(As0 4)2(As20 7): A New Divanadyl(IV)-Arsenate Containing Face Shared V20 8+, Double A new alkaline earth vanadyl arsenate Ba(V0)4(As0 4)2(As2 0 7) has been synthesized by solid state reactions in closed quartz tubes. X-ray investigations led to orthorhombic symmetry, space group D2£-Pnma, a = 17.540(2), b = 7.6223(8), c = 11.0633(12) A, Z = 4. The crystal structure is characterized by A s 0 4 single and As20 7 double tetrahedra and face shared asymmetric stretched V20 8+, double octahedra, forming a network of polyhedra. The incorporated Ba2+ ions show 12-fold coordination by oxygen. Ba(V 0)4(A s0 4)2(As20 7) is the first vanadyl compound containing V20 8 divanadyl groups originating from face sharing stretched V 0 5+l octahedra. 
  Reference    (Z. Naturforsch. 52b, 83—87 [1997]; eingegangen am 21. August 1996) 
  Published    1997 
  Keywords    Barium, Vanadyl Arsenate, Crystal Structure 
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 TEI-XML for    default:Reihe_B/52/ZNB-1997-52b-0083.pdf 
 Identifier    ZNB-1997-52b-0083 
 Volume    52 
6Author    B. Wulff, Hk Wedel, Müller-BuschbaumRequires cookie*
 Title    Zur Kristallchemie von Telluraten mit Mn2+ im kationischen und anionischen Teil der Kristallstruktur: (Mn2?4Cuo,6)Te06, Ba2M nTe06 und Pb(Mn0,5 Te0,5 )O3 On the Crystal Chemistry of Tellurates Containing Mn2+ in the Cationic and Anionic Part of the Crystal Structure: (Mn2 4Cu0 6)Te06, Ba2MnTe06 and Pb(Mn0 5Te0 5) 0 3 L  
 Abstract    Single crystals of (Mn2.4Cu0 6)Te06 (I), Ba2MnTe06 (II) and Pb(Mn0 5Te0 5) 0 3 (III) have been prepared by crystallization from fluxes. X-ray investigations led to rhombohedric sym­ metry (I): R3, (II): R3m with the trigonal lattice constants (I): a = 8.826(1), c = 10.687(2) Ä, Z = 2. (II): a = 5.817(8), c = 14.244(3) A, Z = 3. Compound (III) crystallizes with cubic symmetry P43m, a = 4.045(3) A, Z = 1. (I) is the first example of a manganese(II) tellurate and belongs to the structure type of A3X 0 6 compounds like (Mn2In)Sb06, Mn3W 0 6 and Ca3U 0 6. (II) exemplifies an ordered and (III) a disordered variation of the perovskites. 
  Reference    (Z. Naturforsch. 53b, 49—52 [1998]; eingegangen am 15. Oktober 1997) 
  Published    1998 
  Keywords    Manganese, Copper, Lead, Barium, Tellurates 
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 TEI-XML for    default:Reihe_B/53/ZNB-1998-53b-0049.pdf 
 Identifier    ZNB-1998-53b-0049 
 Volume    53 
7Author    Masahiko Matsumiya, Masatoshi Takano, Ryuzo Takagi, Reiko FujitaRequires cookie*
 Title    Electrochemical Behavior of Ba 2+ at Liquid Metal Cathodes in Molten Chlorides  
 Abstract    The electrochemcal behavior of Ba 2+ on several liquid metal electrodes (AI, Bi, Cd, Pb, Sn and Zn) in a NaCl-KCl equimolar solvent at 1000 K has been investigated by means of cyclic voltammetry and chronopotentiometry. The kinetic parameters and the diffusion coefficient for Ba 2+ were determined by cyclic voltammetry with conventional, semi-integral, semi-differential methods and chronopotentiometry. It was revealed that on a liquid Pb electrode in the NaCl-KC1 system at 1000 K the quasi-reversible cathodic reaction Ba 2+ + 2e~ + Pb —> BaPb takes place. In addition, the kinetic parameters and the diffusion coefficient agree well with the values determined by various electroanalyses. The possibility of alloy formation between Ba and Sn was also demonstrated in this paper. 
  Reference    Z. Naturforsch. 54a, 739—746 (1999); received September 13 1999 
  Published    1999 
  Keywords    Alloy Formation Reaction, Barium, Liquid Metal Cathodes, Molten Salts 
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 TEI-XML for    default:Reihe_A/54/ZNA-1999-54a-0739.pdf 
 Identifier    ZNA-1999-54a-0739 
 Volume    54 
8Author    R. Kipka, Hk Müller-BuschbaumRequires 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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 TEI-XML for    default:Reihe_B/31/ZNB-1976-31b-1067.pdf 
 Identifier    ZNB-1976-31b-1067 
 Volume    31 
9Author    Requires cookie*
 Title    Über Oxocuprate, XX Ein Erdalkalioxocuprat(II) mit geschlossenen Baugruppen: BaCu02 About Oxocuprates, X X  
 Abstract    Alkaline-earth Oxocuprate(II) with Closed Structural Groups: B aC u02 R. K ipka und H k. M ü l l e r -B u s c h b a u m In stitu t für Anorganische Chemie der C hristian-A lbrechts-U niversität K iel The new alkaline-earth oxocuprate(II) BaCu0 2 w as prepared and in v estig a ted by single crystal X -ray m ethods. (Space group: 0 ^ -I m 3 m , la ttice con stan t: a = 1827 pm .) The distribution o f 360 atom s per unit cell leads to a com plicated polyhedral fram ework w ith Cu2+ in w ell known square coordination. One of th e B a 2+ positions has th e extraordinary coordination number 24. 
  Reference    (Z. Naturforsch. 32b, 121—123 [1977]; eingegangen am 15. November 1976) 
  Published    1977 
  Keywords    Barium, Copper, O xygen, X -ray, Single crystal 
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 TEI-XML for    default:Reihe_B/32/ZNB-1977-32b-0121.pdf 
 Identifier    ZNB-1977-32b-0121 
 Volume    32 
10Author    Hk Müller-Buschbaum, M. HarderRequires cookie*
 Title    Zur Kenntnis von Ba2Fe2 Fe9 3 Aln034 About Ba2Fe2 2+ Fe9 3+ Alii034  
 Abstract    Single crystals of the compound Ba2FenAln034 were prepared by solid state reac-tion (1700 °C) of Ba0-Fe203-Al203 mixtures. The crystal structure was investigated by X-rav data (space group D6h-P63/mmc, lattice constants: a = 565.3, c = 2281.0 pm). Ba2FenAln034 is isotypic with Na20 • 11 AI2O3, the structure of)S-alumina. 
  Reference    Z. Naturforsch. 33b, 146—148 (1978); eingegangen am 8. Dezember 1977 
  Published    1978 
  Keywords    Barium, Iron, Aluminium, X-ray, Crystal Structure 
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 TEI-XML for    default:Reihe_B/33/ZNB-1978-33b-0146.pdf 
 Identifier    ZNB-1978-33b-0146 
 Volume    33 
11Author    J. Schmachtel, Hk Müller-BuschbaumRequires cookie*
 Title    Oxotitanate mit gemischter Valenz, III Zur Kenntnis von BaTi8016 Oxotitanates with Mixed Valence. III About BaTisOie  
 Abstract    The hitherto unknown compound BaTisOi6 was prepared by heating a mixture of Ba0:Ti02 = 1:4 in a vacuum furnace to 1400 °C (Ti crucible). Single crystal X-ray investigations show monoclinic symmetry (a — 1420,9, b = 297,1, c — 998,1 pm, ß = 133,50°; space group C|-C2). The crystal structure was found to be isotypic to a-Mn02. 
  Reference    Z. Naturforsch. 35b, 332—334 (1980); eingegangen am 14. Dezember 1979 
  Published    1980 
  Keywords    Barium, Titanium, Oxide, Crystal Structure, a-Mn02-Type 
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 TEI-XML for    default:Reihe_B/35/ZNB-1980-35b-0332.pdf 
 Identifier    ZNB-1980-35b-0332 
 Volume    35 
12Author    D. Chales De Beaulieu, Hk Müller-BuschbaumRequires cookie*
 Title    Gemischtvalente Oxovanadate, I Ein neuer Strukturtyp für die Verbindung BaV10O15 Oxovanadates with Mixed Valence, I A New Crystal Structure of BaVioOis  
 Abstract    BaVioOis was prepared by high temperature reaction of BaO and V2O3 in H2-atmosphere (T > 1800°). X-ray investigations of single crystals show a new structure type with octa-hedral coordination of V 3+ /V 2+ (statistical distribution) and cuboctahedral surrounding of Ba 2+ . Orthorhombic symmetry, space group D^|-Ccmb, a = 995,8; b = 1161,8; c = 941,0; Z = 4. 
  Reference    Z. Naturforsch. 35b, 669—671 (1980); eingegangen am 5. Februar 1980 
  Published    1980 
  Keywords    Barium, Vanadium, Oxide, Mixed Valence State, Crystal Structure 
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 TEI-XML for    default:Reihe_B/35/ZNB-1980-35b-0669.pdf 
 Identifier    ZNB-1980-35b-0669 
 Volume    35 
13Author    A.-R Schulze, Hk Müller-BuschbaumRequires cookie*
 Title    Zur Verbindungsbildung von MeO :M203. V Neue metastabile Verbindungen: BaSr2Y6012, BaSr2Er6012 und BaSr2Tm6012  
 Abstract    The new metastable compounds BaSr2YeOi2 (I), BaSr2Er60i2 (II) and BaSr2Tm60i2 (III) could be prepared with high temperature reactions (C02-Laser). The X-ray single crystal investigations lead to hexagonal symmetry, space group Ch-P63/m; lattice constants: I: o= 1029.9 c = 340.9 pm II: a = 1027.7 c = 338.5 pm III: a = 1021.5 c = 337.6 pm The crystal structure the formation of the compounds and the range of stabüity are discussed. 
  Reference    Z. Naturforsch. 36b, 837—839 (1981); eingegangen am 27. März 1981 
  Published    1981 
  Keywords    Barium, Strontium, Rare Earth, Oxide, Crystal Structure 
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 TEI-XML for    default:Reihe_B/36/ZNB-1981-36b-0837.pdf 
 Identifier    ZNB-1981-36b-0837 
 Volume    36 
14Author    G. Tams, Hk Miiller-BuschbaumRequires cookie*
 Title    A Contribution to the Crystal Chemistry of Alcaline Alealine Earth Precious Metal Perovskites. Synthesis and Crystal Structure of NaBa4Cuo,5Pti,50 8  
 Abstract    Single crystals of the phase NaBa4Cu0 5P t1 s0 8 were prepared in closed silver tubes. The black and moisture sensitive crystals were investigated by four-circle diffractometer X-ray tech­ niques. They show trigonal symmetry, space group D2-P321, a = 10.0644, c = 8.3811 A, Z = 3 and belong to the perovskites. The typical M20 9 double octahedra are occupied by Pt4+ and Cu2+ in a different manner. Na+ is partly in and out of the centres of trigonal prisms of oxygen. These features will be discussed with respect 
  Reference    Z. Naturforsch. 49b, 585—588 (1994); eingegangen am 12. Januar 1994 
  Published    1994 
  Keywords    Sodium, Barium, Copper, Platinum, Crystal Structure 
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 TEI-XML for    default:Reihe_B/49/ZNB-1994-49b-0585.pdf 
 Identifier    ZNB-1994-49b-0585 
 Volume    49 
15Author    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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 TEI-XML for    default:Reihe_B/49/ZNB-1994-49b-0911.pdf 
 Identifier    ZNB-1994-49b-0911 
 Volume    49 
16Author    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 
17Author    G. Tams, HkM. Üller-BuschbaumRequires cookie*
 Title    Synthese und Röntgenstrukturanalyse von Ba4LiCu0 4(C03)2 Synthesis and X -R ay Analysis of B a4L iC u 0 4( C 0 3) 2  
 Abstract    Single crystals of Ba4LiCu0 4 (C0 3)2 have been prepared by C 0 2-L A SE R technique and investigated by single crystal X-ray diffraction. The compound crystallizes in the tetragonal space group D7d-I42m (No. 121), a = 5.767(1), c = 15.2614(7) A, Z = 2. It is isotypic with Ba4NaCu0 4(C03)2 and shows Li+ with octahedral and Cu3+ with square planar coordina­ tion by O2-. The crystal structure are discussed with respect to the related compounds Ba4N aA u 04(0 2)2 and Ba4K A u04( 
  Reference    (Z. Naturforsch. 50b, 56—6 [1995]; eingegangen am 2. August 1994) 
  Published    1995 
  Keywords    Barium, Lithium Copper, Oxide Carbonate, Crystal Structure 
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 TEI-XML for    default:Reihe_B/50/ZNB-1995-50b-0056.pdf 
 Identifier    ZNB-1995-50b-0056 
 Volume    50 
18Author    S. Frenzen, Hk Müller-BuschbaumRequires cookie*
 Title    Uber einen 9L-Perowskit der Zusammensetzung Ba9Ru3? 2Mn5?8027 On a 9L-Perovskite of the Composition Ba9Ru3 2Mn5 80 27  
 Abstract    Single crystals of Ba9Ru3 2Mn5 80 27 have been prepared by flux techniques. X-ray four circle diffractometer measurements led to trigonal (rhombohedral) symmetry, space group D3d-R 3 m , a = 5.7043(5), c = 21.255(4) A , Z = 1. This phase is isotypic to B a R u 0 3. The crystal structure and the occupation of the M3O i2 triple octahedra by ruthenium and manga­ nese are discussed with respect to other oxides containing M30 12 groups in an ordered and disordered way. 
  Reference    Z. Naturforsch. 50b, 585 (1995); eingegangen am 10. Oktober 1994 
  Published    1995 
  Keywords    Barium, Ruthenium, M anganese, Oxide, Perovskite, Structure 
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 TEI-XML for    default:Reihe_B/50/ZNB-1995-50b-0585.pdf 
 Identifier    ZNB-1995-50b-0585 
 Volume    50 
19Author    HkM. Üller-Buschbaum, B. M. ErtensRequires cookie*
 Title    Single Crystal X-Ray Analysis of Ba3Ce R  
 Abstract    Single crystals of (I) Ba3C eRu20 9, (II) Ba3SmRu20 9, (III) Ba3D yR u20 9, (IV) Ba3ErRu20 9 and (V) Ba3Ti24Ru0.6O 9 have been prepared by high temperature solid state reactions. The compounds were exam ined by X-ray techniques. They crystallize with hexagonal symmetry, 
  Reference    (Z. Naturforsch. 51b, 79 [1996]; eingegangen am 18. Mai 1995) 
  Published    1996 
  Keywords    Barium, Rare Earth, Ruthenium Oxide, Titanium, Crystal Structure 
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 TEI-XML for    default:Reihe_B/51/ZNB-1996-51b-0079.pdf 
 Identifier    ZNB-1996-51b-0079 
 Volume    51 
20Author    St Gallinat, Hk Müller-BuschbaumRequires cookie*
 Title    Two Examples of Partial and Total Defects in the B a«Ln2Mo4O i6-Type: BaCu0 41 ■o,59Pr2Mo4 0 16 and BaBYb2Mo4Ojg  
 Abstract    Single crystals of (I) BaCu0.4iPr2M o4O 16 and (II) BaYb2M o40 16 have been prepared by flux technique. Both compounds crystallize with m onoclinic symmetry, space group C2h-C 2 /c with (I): a = 5.352(11), b = 12.888(2), c = 19.399(4) A; ß = 90.89(3)°; (II): a = 5.181(7), b = 12.467(3), c -19.350(3) Ä , ß -91.93(2)°, Z = 4. The crystal structure is characterized by i [ B a M 0 12]-chains along [010]. In the first case the M positions are occupied by copper by about 41%, in the second case these positions remain com pletely unoccupied. With respect to the crystal chemistry of the reference compound Ba(Cu0.22Mg() 78)Nd2Mo4O 16 all substan­ ces of the composition BaLn2M o40 16 should be written as Ba»Ln2Mo40 16 indicating the holes in th e^ B a M O i^ -c h a in s by ■. 
  Reference    (Z. Naturforsch. 51b, 85—8 [1996]; eingegangen am 7. Juni 1995) 
  Published    1996 
  Keywords    Barium, Copper, Rare Earth, Molybdenum Oxide, Crystal Structure 
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 TEI-XML for    default:Reihe_B/51/ZNB-1996-51b-0085.pdf 
 Identifier    ZNB-1996-51b-0085 
 Volume    51