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81Author    G. Rebe, Frank Weller, Kurt Dehnicke, ProfRequires cookie*
 Title    Jutta  
 Abstract    N-Iodo-triphenylphosphaneimine, Ph3PNI, has been prepared by thermolysis of the donor acceptor complex [Me3SiNPPh3-ICl] in boiling acetonitrile in the presence of potassium fluo­ ride. Both compounds have been characterized by IR spectroscopy and by crystal structure determinations. [Me3SiNPPh3 ICl]: Space group P I, Z = 2, a = 888.3(1), b = 1070.7(1), c = 1310.2(1) pm, a = 9 5 .15(1)°, ß = 108.67(1)°, 7 = 97.78(1)° at 20°C. The complex has a molecular structure in which the N atom of the phosphaneimine is connected with the iodine atom of the IC1 molecule in a linear arrangement N-I-Cl with bond lengths N-I = 232.7 pm, I-Cl = 255.37 pm. Ph3PNI: Space group P2,/n, Z = 4, a = 952.8(1), b = 1800.8(2), c = 1003.6(1) pm, ß = 110.25(1)° at -50°C. The compound forms monomeric molecules with bond lengths PN = 159.1 pm, I-N = 205.6 pm and an INP bond angle of 113.3°. N-Iod-triphenylphosphanimin. Synthese und Kristallstrukturen von [Me3SiNPPh3 ICl] und Ph3PNI 
  Reference    Z. Naturforsch. 51b, 1739—1743 (1996); eingegangen am 12. April 1996 
  Published    1996 
  Keywords    Phosphaneimine Complexes, Synthesis, Crystal Structure 
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 Identifier    ZNB-1996-51b-1739 
 Volume    51 
82Author    Christian Meyer3, Dietrich Mootza, Birgit Bäckb, Rolf MinkwitzbRequires cookie*
 Title    Bis(trifluormethyl)disulfan und -trisulfan: Molekülgeometrie im festen Zustand [1] Bis(trifluoromethyl)disulfane and Trisulfane: Molecular Geometry in the Solid State [1]  
 Abstract    The solid-state structures of the low-melting compounds bis(trifluoromethyl)disulfane (CF3SSCF3, triclinic, space group P I, Z = 2) and bis(trifluoromethyl)trisulfane (CF3SSSCF3, monoclinic, space group C2/c, Z = 4) have been determined on single crystals with M oK a radiation at -160°C. The trisulfane has trans conformation. The geometry of both molecules agrees well with results of electron diffraction on the gaseous state. A comparison is made also with the crystal structures of the related molecules CF3TeTeCF3 and CF3OOOCF3. 
  Reference    (Z. Naturforsch. 52b, 69—71 [1997]; eingegangen am 15. Juli 1996) 
  Published    1997 
  Keywords    Conformation, Crystal Structure, Sulfane 
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 Identifier    ZNB-1997-52b-0069 
 Volume    52 
83Author    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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 Identifier    ZNB-1997-52b-0083 
 Volume    52 
84Author    Z. NaturforschRequires cookie*
 Title      
 Abstract    The crystal structures of PbMe3I and BiPh2Cl have been determined by X-ray methods. Both compounds form polymeric chains via bent [i2-ha-logeno bridges and almost linear X-M-X units (X = I, Cl). 
  Reference    Z. Naturforsch. 52b, 149—152 (1997); eingegangen am 20. September 1996 
  Published    1997 
  Keywords    Lead, Bismuth Compounds, Crystal Structure 
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 Identifier    ZNB-1997-52b-0149_n 
 Volume    52 
85Author    Amo Pfitzner, Eva FreudenthalerRequires cookie*
 Title    (CuI)2Pi4* ein neues Phosphorpolymer in einer Kupferhalogenid-Matrix (CuI)2P 14: a Novel Phosphorus Polymer in a Copper Halide Matrix  
 Abstract    (CuI)2Pi4 is a new adduct of copper iodide to a neutral phosphorus polymer. It is obtained by reaction of Cul and Pred at 400 °C. The compound crystallizes monoclinically, space group P2,/c (No. 14), a = 9.919(2), b = 9.718(2), c = 16.478(3) Ä, ß = 105.71(1)°, V = 1529.0(7) A3, with Z = 4. The crystal structure was refined to R\ = 0.029 for 2680 reflections and 173 parameters. It contains a new polymeric phosphorus allotrope with the translational unit P^° consisting of experimentally unknown [PI2] groups which are linked by [P2] fragments. The phosphorus rods consist of five-and six-membered rings, and are coordinated only by copper atoms. 
  Reference    Z. Naturforsch. 52b, 199—202 (1997); eingegangen am 11. September 1996 
  Published    1997 
  Keywords    Phosphorus, Copper Compounds, Crystal Structure 
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 Identifier    ZNB-1997-52b-0199 
 Volume    52 
86Author    Olaf Reckeweg, H.-Jürgen MeyerRequires cookie*
 Title    Unsymmetrische BN23'-Ionen in den Strukturen von Ca2ClBN2 und Sr2ClBN2. Unsymmetric BN23~-Ions in the Structures of Ca2ClBN2 and Sr2ClBN2  
 Abstract    The new compounds Ca2ClBN2 (1) and Sr2ClBN2 (2) were prepared from the respective metal, its dihalide and h-BN in sealed tantalum ampoules at 1200 °C. The crystals obtained were transparent yellow (1) and blue (2), respectively. The crystal structures were determined from single crystal X-ray data. Ca2ClBN2 and Sr2ClBN2 are isotypic and crystallize in the orthorhombic space group Pnma (No. 62), Z = 4 (Ca2ClBN 2: a = 1166.7(2), b = 390.26(4), c = 899.8(1) pm, R 1 = 0.043, wR2 = 0.115 for 554 independent reflections; Sr-,C1BNT: a = 1242.8(1), b = 416.75(4), c = 920.8(1) pm, R\ = 0.031, wR2 = 0.054 for 6 6 2 'independent reflections). The structures contain two different layers of M 2+, C P and BN23~ alternating along the [010] direction. The bond angles N-B-N are 177.2(4)° for (1) and 176,6(5)° for (2), the bond distances of the BN23_ ions are dB_ N] = 134.6(5) pm for (1), 136,3(7) pm for (2) and dg_N2 = 132.4(5) pm for (1) and 131,3(7) pm for (2). The unsymmetric structure of the BN23~ ion, as is manifested particularly in the Sr compound (2), is caused by the coordination of N 1 to four cations while N2 is coordinated only to three. 
  Reference    Z. Naturforsch. 52b, 340—344 (1997); eingegangen am 12. November 1996 
  Published    1997 
  Keywords    Boronitrides, Synthesis, Crystal Structure 
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 Identifier    ZNB-1997-52b-0340 
 Volume    52 
87Author    Uwe Klingebiel, Mathias Noltemeyer, Hans-Jörg RakebrandtRequires cookie*
 Title    Difluorphosphorylcyclosilazane -Synthese und Kristallstruktur Difluorophosphorylcyclosilazanes -Syntheses and Crystal Structure  
 Abstract    The reaction of lithiated l,3-bis(fluorodimethyl)cyclotrisilazane with PF3 leads to the formation of a PF2-substituted six-membered Si-N ring (1). 1,5-Bis(difluorophosphanyl)-2,2,4,4,6,6,8,8-octamethyl-cyclotetrasilazane (2) is obtained in the reaction of the dilithium derivative of the cyclic tetrasilazane with trifluorophosphane in a molar ratio 1:2. The crystal structure of (F2P-N-SiMe2-NH-SiMe2)2 (2) has been determined. 
  Reference    Z. Naturforsch. 52b, 775—777 (1997); eingegangen am 14. April 1997 
  Published    1997 
  Keywords    Fluorophosphorylcyclosilazanes, Silicon, Crystal Structure 
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 Identifier    ZNB-1997-52b-0775 
 Volume    52 
88Author    Pb2ln2si209, J.-P Werner, Hk Müller-BuschbaumRequires cookie*
 Title    Zur Kenntnis eines synthetischen Kentrolits/Melanotekits des Indiums: On an Synthetic Kentrolite/Melanotekite of Indium: Pb2In2Si20 9  
 Abstract    Single crystals of Pb2In2Si20 9 have been prepared by crystallisation from melts of Pb(N 03)2, ln20 3 and S i0 2. The compound crystallizes with orthorhombic symmetry, space group C2v-Pna2| with the lattice constants a = 10.529(1),/?= 11.372(1) and c = 7.019(3) A, Z = 4. Despite the fact that the Kentrolite/Melanotekite structure is characterized by dissimilar occupied split positions of lead, Pb2In2Si20 9 shows completely filled and ordered point positions. The location of a dot like lone pair of Pb~+ is estimated by Coulomb term calculations of lattice energy. The results are discussed with respect to published Pb-lone pair distances using the electronic polarizability coefficient of the lone pair cation or simple geometrical considerations. 
  Reference    Z. Naturforsch. 52b, 1213—1218 (1997); eingegangen am 8. Juli 1997 
  Published    1997 
  Keywords    Lead, Indium, Silicate, Crystal Structure 
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 Identifier    ZNB-1997-52b-1213 
 Volume    52 
89Author    Stefan DickRequires cookie*
 Title    Die Struktur von GaAs0 4 *2 H20 : Ein neues Mitglied der Variscit-Familie The Structure of GaAsC>4-2 H20 : A New M ember of the Variscite Family  
 Abstract    GaAs0 4 -2 FF0 was synthesized hydrothermally from Ga2Ü3 and a K+-AsC>4~ solution at pH=2. A single crystal structure determination showed that GaAs0 4 -2H20 is isotypic with variscite and therefore the first gallium arsenate with octahedrally coordinated Ga(III). Crys­ tal data: space group Pbca, a = 1016,0(1), b = 886,2(1), c = 994. 1(1) pm, R g = 0,0266. GaAs0 4 -2 H2 0 dehydrates at 439 K with formation of an amorphous material and poor cry­ stalline GaAsC>4. The crystal data of all known compounds with variscite structure have been compiled. 
  Reference    Z. Naturforsch. 52b, 1337—1340 (1997); eingegangen am 27. Juni 1997 
  Published    1997 
  Keywords    Gallium Arsenate, Crystal Structure, Variscite 
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 Identifier    ZNB-1997-52b-1337 
 Volume    52 
90Author    Hk Wulff, Müller-BuschbaumRequires cookie*
 Title    Synthese und Kristallstruktur des Lanthan-Titanat-Tellurats LaTi  
 Abstract    (Ti0 2 5Te0j 5)O6 und seine Verwandtschaft mit PbSb20 6 und Sr(MnTe)06 Synthesis and Crystal Structure of the Lanthanum Titanate Tellurate LaTi(Ti0 25Te0 75) 0 6 and its Relationship to PbSb20 6 and Sr(M nTe)06 L. Single crystals of LaTi(Ti0 25T e o .75) 0 6 have been prepared by solid state reactions. X-ray investigations led to trigonal symmetry, space group C3-P3 , a = 5.141(10), c = 5.218(10) A, Z = 1. The compound is characterized by a predominantly ordered distribution of Ti4+ and Te6+. Typical features of the crystal structure are staggered layers containing edge connected T i0 6 and (Ti,Te)06 octahedra. The layers are connected by La3+ ions receiving an octahedral coordination by the surrounding oxygen ions. The relationships to the PbSb20 6 type and the recently described compound Sr(M nTe)06 are discussed. 
  Reference    Z. Naturforsch. 53b, 149—152 (1998); eingegangen am 25. November 1997 
  Published    1998 
  Keywords    Lanthanum, Titanate, Tellurate, Crystal Structure 
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 Identifier    ZNB-1998-53b-0149 
 Volume    53 
91Author    G. Waidmann, M. JansenRequires cookie*
 Title    Synthese und Charakterisierung des Fulleren-Kokristallisats C60*SiH(C6H5)3 Synthesis and Characterisation of the Fullerene Co-Crystal C60*SiH(C6H5)3  
 Abstract    A new fullerene co-crystal C60*SiH(C6H5)3 has been synthesized by crystallisation from a melt of SiH(C6H5)3 and C60 in sealed duran tubes at 80°C. X-ray investigations led to triclinic symmetry, space group P i, a = 10.086(1),/? = 14.431(2), c = 14.911(2) Ä, a = 79.13(1), ß = 74.943(9), 7 = 88.33(1)°, V = 2058.0(4) A 3, Z = 2. The crystal structure consists of isolated fullerene and silane molecules. At -80°C, C60 is still rotationally disordered. Temperature dependent Guinier powder diagrams do not show any phase transformation between 25 and -165°C. The compound is stable in air. 
  Reference    Z. Naturforsch. 53b, 161—164 (1998); eingegangen am 14. November 1997 
  Published    1998 
  Keywords    Fullerene C60, Synthesis, Crystal Structure 
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 Identifier    ZNB-1998-53b-0161 
 Volume    53 
92Author    Hk Wulff, Müller-BuschbaumRequires cookie*
 Title    Isolierte trigonale S r 0 6-Prismen verknüpfen Kagome-Netze im Strontium-Manganat(I V)-Tellurat( VI): SrMnTe06 Kagome Layers Connected by Isolated Trigonal Sr06 Prisms in the Strontium Manganate(IV) Tellurate(VI): SrMnTe06 L  
 Abstract    Single crystals of the hitherto unknown compound SrM nT e06 have been prepared from Sr(0H)2-8H20 , M n C 0 3(aq) and T e 0 2 in air by crystallization below the melt range. X-ray in­ vestigations showed hexagonal symmetry, space group D3h-P62m, lattice constants a = 5.143(1), c = 5.384(2) A, Z = 1. SrM nTe06 is characterized by staggered [(Mn/Te)60 18] Kagome layers along [001]. These layers are connected by Sr2+ ions, resulting in S r0 6 prisms isolated from each other. The structure is discussed with respect to the connection of Kagome nets in the quaternary oxides of the Ba3Ln40 9 type. 
  Reference    Z. Naturforsch. 53b, 283—286 (1998); eingegangen am 7. November 1997 
  Published    1998 
  Keywords    Strontium, Manganese, Tellurate, Crystal Structure 
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 Identifier    ZNB-1998-53b-0283 
 Volume    53 
93Author    B. Wedel, L. Wulff, Hk Müller-BuschbaumRequires cookie*
 Title    Isolierte ^[TeOs]-Oktaederketten im Bleitellurat Pb2T e05 Isolated ^ [Te05] Chains of Octahedra in the Lead Tellurate Pb2T e05  
 Abstract    Single crystals of Pb2T e0 5 have been prepared by flux techniques. X-ray investigations showed a new crystal structure with monoclinic symmetry, space group Cj-Cc, a = 13.099(3), b = 5.714(1), c = 7.520(2) Ä, ß = 123,80(3)°, Z = 4. Pb2T e 0 5 is characterized by o[o[Te05] chains of octahedra isolated from each other and incorporated into an edge, corner and face connected frame of P b 0 7 polyhedra. Possible positions o f the lone pair o f electrons of Pb2+ are estimated by calculations of Coulomb terms of lattice energy. 
  Reference    Z. Naturforsch. 53b, 287—290 (1998); eingegangen am 17. November 1997 
  Published    1998 
  Keywords    Lead, Tellurate, Crystal Structure 
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 Identifier    ZNB-1998-53b-0287 
 Volume    53 
94Author    Thorsten Grob, FrankW. Eller, K. Urt, D. EhnickeRequires cookie*
 Title    Die Kristallstruktur von [Me3PN(H)PMe3]4l 28? einem Polyiodid mit I3~-, lg2--und I144"-Ionen Crystal Structure o f [M e3P N (H )P M e3]4I28, a Polyiodide w ith I3~, I82 -, and I 144~ Ions  
 Abstract    Black-red single crystals of [Me3PN(H)PMe3]4I28 have been prepared by the reaction of [Me3PNPMe3]I with iodine in dichloromethane solution in the presence of Me3SiI and traces of water. The polyiodide crystallizes triclinically in the space group Pi with two formula units per unit cell with the lattice dimensions a = 831.2(1), b = 1661.2(3), c = 1739.0(3) pm, q = 87.26(1)°, ß = 79.48(1)°, 7 = 78.17(1)°. The structure consists of [Me3PN(H)PMe3]2+ ions, linear I3~ ions, z-shaped I8: ~ ions, and zig-zag chains of I I44-ions, the terminal iodine atoms of which form I-H -N hydrogen bridges to the cations. 
  Reference    Z. Naturforsch. 53b, 552—556 (1998); eingegangen am 23. Februar 1998 
  Published    1998 
  Keywords    Polyiodide, Synthesis, Crystal Structure 
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 Identifier    ZNB-1998-53b-0552 
 Volume    53 
95Author    Andreas Mommertz, Gertraud Geiseier, Klaus Harms, Kurt DehnickeRequires cookie*
 Title    Kristallstrukturen von Me2Si[N(SiMe3)2]2 und [Me2Si(NPh)(NHPh)LiOEt2]2 Crystal Structures of Me2Si[N(SiM e3)2]2 and [Me2Si(NPh)(NHPh)Li-OEt2]2  
 Abstract    The crystal structures of the title compounds are reported. Me2Si[N(SiMe3)2]2 : Space group Pbcn, Z = 4, lattice dimensions at 213 K: a = 1487.8(1), b = 1299.4(1), c = 1259.7(1) pm. The compound forms monomeric molecules with crystallographic C2 symmetry and Si-N bond lengths of 177.9(3), 171.6(3) and 175,2(3) pm. [Me2 Si(NPh)(NHPh)Li OEt2]2: Space group P2]/n, Z = 2, lattice dimensions at 190 K: a = 1082.7(3), b = 1038.8(2), c = 1641.3(4) pm, ß = 91.350(3)°. The compound forms centrosymmetric dimeric molecules in which the lithium atoms are members of a Li2N2 ring with Li-N bond lengths of 206.6(2) and 213.5(2) pm. The hydrogen atom at the nitrogen atom of the HNPh~ group is not involved in hydrogen bridging bonds. 
  Reference    Z. Naturforsch. 53b, 977—980 (1998); eingegangen am 29. Mai 1998 
  Published    1998 
  Keywords    Silylamine, Lithium Amide, Crystal Structure 
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 Identifier    ZNB-1998-53b-0977 
 Volume    53 
96Author    Z. NaturforschRequires cookie*
 Title    Pentacoordinated Nitrogen Atoms in the Structure of Hexalithium Bis[methylsilyl-tris(methylimide)] Hexakis(tetrahydrofuran)  
 Abstract    Lithiation of tris(methylamino)wt'f/7v/silane using an excess of n -butyllithium affords the cor­ responding trifunctional lithium amide in high yield. The compound crystallizes from tetrahy-drofuran as a dimer with six donor molecules: {[M eSi(NM eLi)3]2(thf)6}. The cluster is a cage structure grouped around a crystallographic center of inversion. The silicon and lithium atoms are tetrahedrally tetracoordinated, but the nitrogen atoms are pentacoordinated and have a square pyramidal environment of one carbon, one silicon, and three lithium atoms. Parallels can be drawn to other species with polymetallated nitrogen functions. An analogous compound was prepared from tris(methylamino)vwv/silane. 
  Reference    (Z. Naturforsch. 54b, 8—12 [1999]; received September 1 1998) 
  Published    1999 
  Keywords    Silylamines, Silylamides, Crystal Structure 
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 Identifier    ZNB-1999-54b-0008 
 Volume    54 
97Author    Rolf Minkwitz, Michael Berkei, Sonderdruckanforderungen An, ProfR. Dr, MinkwitzRequires cookie*
 Title    Neuuntersuchung der Kristallstruktur von a-ICl Novel Investigation on the Crystal Structure of a-ICl  
 Abstract    The redetermination of the crystal structure of a-iodine monochloride, a-ICl, is described. It cry­ stallises monoclinically in the space group P2j/c with a = 1216.2(1), b = 428.6(1), c = 1188.9(1) pm, ß= 117.50(1)° and eight formula units per unit cell. 
  Reference    Z. Naturforsch. 54b, 1615—1617 (1999); eingegangen am 10. September 1999 
  Published    1999 
  Keywords    Iodine Monochloride, Redetermination, Crystal Structure 
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 Identifier    ZNB-1999-54b-1615_n 
 Volume    54 
98Author    Ratikanta Mishra, Rolf-Dieter Hoffmann, Rainer PöttgenRequires cookie*
 Title    New Magnesium Compounds /fcE2Cu2Mg (RE = Y, La -Nd, Sm, Gd -Tm, Lu) with Mo2FeB2 Type Structure  
 Abstract    The title compounds were synthesized by reaction of the elements in sealed tantalum tubes in a water-cooled sample chamber in a high-frequency furnace. These magnesium intermetallics crystallize with the tetragonal Mo2FeB2 type structure, space group PMmbm. The lattice pa­ rameters of all compounds were refined from X-ray powder data. Single crystal X-ray data yielded a = 792.09(6), c = 396.31(8) pm, wR2 = 0.0396, 315 F 2 values for La2Cu2Mg, a = 778.30(5), c = 384.04(5) pm, wR2 = 0.0954, 214 F 2 values for Nd2Cu2Mg, and a = 762.65(5), c = 374.09(3) pm, wR2 = 0.0566, 186 F 2 values for Y2Cu2Mg with 12 variable parameters for each refinement. The /?£, 2Cu2Mg structures can be described as an intergrowth of distorted A1B2 and CsCl related slabs of compositions RECui and REMg. Chemical bonding in La2Cu2Mg was investigated on the basis of extended Hückel calculations and compared to isotypic La2Cu2ln. This structure was also refined from single crystal X-ray data: PMmbm, a = 780.8(2), c = 400.1(2) pm, wR2 = 0.0351, 211 F 2 values and 12 variable parameters. 
  Reference    Z. Naturforsch. 56b, 239—244 (2001); received January 25 2001 
  Published    2001 
  Keywords    Intermetallic Compounds, Magnesium, Crystal Structure 
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 Identifier    ZNB-2001-56b-0239 
 Volume    56 
99Author    N. O. Rb, E. Rt, W. M. Itzel, Christian LustigRequires cookie*
 Title    Crystal Structure of a Lithium Chloride Cubane Cluster Solvated by Diethyl Ether  
  Reference    Z. Naturforsch. 56b, 443 (2001); received March 2 2001 
  Published    2001 
  Keywords    Lithium Chloride, Aggregation, Crystal Structure 
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 Identifier    ZNB-2001-56b-0443_n 
 Volume    56 
100Author    Heinz-Joachim HübnerRequires 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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 TEI-XML for    default:Reihe_B/31/ZNB-1976-31b-0886_n.pdf 
 Identifier    ZNB-1976-31b-0886_n 
 Volume    31 
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