ZfN: Search Results

Browse byFacets

Bookbag ( 0 )

'Crystal Structure' in keywords Facet Publication Year 1996 [X]

Results 108 Items

4

61	Author	J. Beck	Requires cookie*
	Title	[TeCl3]+)3[MoCI6]2-(C
	Abstract	The Reaction o f M oC 14 w ith TeCl4: Synthesis and Crystal Structure of Tris(trichlorotelluronium) H exachlorom olybdate(IV) Chloride, ([TeCl3]+)3[M oCl6]2-[ C l -] Red crystals of (T e C l^ M o C l^ C l) are obtained by reacting MoCl4 with TeCl4 in a 1:3 molar ratio in a sealed evacuated ampoule at 170°. The crystal structure determination (orthorhombic, space group Cmc2), a = 1541.6(2), b = 1268.1(1), c = 1180.6(1) pm) shows the presence of trigonal-pyramidal [TeCl3]+ ions, octahedral [MoCI(l]2-ions, and isolated C l-ions. The ions are linked by long Te-Cl bridges resulting in distorted TeCl(l octahedra. The octahedra are connected by joint edges and corners to zig-zag chains running along the polar c axis.
	Reference	Z. Naturforsch. 51b, 1127—1131 (1996); eingegangen am 28. Februar 1996
	Published	1996
	Keywords	Trichlorotelluronium, Hexachloromolybdate(IV), Synthesis, Crystal Structure
	Similar Items	Find
	DEBUG INFO
	TEI-XML for	default:Reihe_B/51/ZNB-1996-51b-1127.pdf
	Identifier	ZNB-1996-51b-1127
	Volume	51

62	Author	R. Buheitel, W. M. Ilius, W. Schnick	Requires cookie*
	Title	Synthese und Kristallstruktur von Cl3 Ti[N(SiMe2 Cl)(SiMe2NH2)]
	Abstract	Cl3Ti[N(SiMe2Cl)(SiM e2NH2)] is yielded by reaction of TiCl4 with two molecules ClMe2SiNHSiMe3. A single crystal structure determination (P 2 , //*, a = 747.12(2), b = 1294.1(3), c = 1496.7(3) pm, ß = 90.30(3)°, Z = 4) shows a planar four-membered ring Ti-N-Si-N as the central feature of the monomers formed by a weak coordinative bond of the NH2 group to the Ti atoms. The monomers are connected to eive dimers via two Cl bridses linked to the Ti atoms.
	Reference	Z. Naturforsch. 51b, 1141—1144 (1996); eingegangen am 19. Februar 1996
	Published	1996
	Keywords	Silazanes, Nitrido Bridges, Precursor, Crystal Structure
	Similar Items	Find
	DEBUG INFO
	TEI-XML for	default:Reihe_B/51/ZNB-1996-51b-1141.pdf
	Identifier	ZNB-1996-51b-1141
	Volume	51

63	Author	S. Frenzen, Hk, Müller-Buschbaum	Requires cookie*
	Title	Über Two Noble Metal Oxometallates Showing Sr4P t 0 6 Structure
	Abstract	N aB a3R u 0 6 und N aB a3I r 0 6. Zwei Edelm etall-O xom etallate mit Sr4P t 0 6-Struktur On N aB a3R u 0 6 and N aB a3I r 0 6. Single crystals of NaBa?RuO(1 (I) and NaBa3IrOf1 (II) have been prepared by crystalli zation from melts in closed silver tubes. The cry stal structures were investigated by X-ray techni ques. Both compounds crystallize with trigonal (rhombohedral) symmetry, space group D f' ,-R3c, I: a = 10.107(2), c = 11.872(2) A. II: a = 10.128(2), c = 11.905(2) A. Z = 6. I and II are isostructural to the Sr4P t06 type.
	Reference	Z. Naturforsch. 51b, 1204—1206 (1996); eingegangen am 26. Februar 1996
	Published	1996
	Keywords	Sodium Barium Ruthenium Iridium, Oxide, Crystal Structure
	Similar Items	Find
	DEBUG INFO
	TEI-XML for	default:Reihe_B/51/ZNB-1996-51b-1204_n.pdf
	Identifier	ZNB-1996-51b-1204_n
	Volume	51

64	Author	M. Wachhold, W. S. Sheldrick	Requires cookie*
	Title	Methanolothermale Synthese von Cs4As2Te6, des ersten Alkalimetall- Telluridoarsenats mit As-As-und Te-Te-Bindungen Methanolothermal Synthesis of Cs4As2Te6, the First Alkali Metal Telluridoarsenate with As-As and Te-Te Bonds
	Abstract	Reaction of Cs2C 0 3 and As2Te3 in methanol at 145°C affords the telluridoarsenate(II) Cs4As2Te(,. A trans conformation is observed for the centrosymmetric As2Te^~ anions, which consist of two t/>-tetrahedralo As(As)(Te2)Te units with a common As-As bond. The terminal As-Te distance of 2.554(2) A is much shorter than the As-Te distance of 2.691(2) A to the Te2 unit, which exhibits a Te-Te bond length of 2.744(2) A. Both of the independent cations are coordinated in an irregular manner by eight Te atoms.
	Reference	Z. Naturforsch. 51b, 1235—1239 (1996); eingegangen am 29. April 1996
	Published	1996
	Keywords	Cesium, Telluridoarsenate(II), Methanolothermal Synthesis, Crystal Structure
	Similar Items	Find
	DEBUG INFO
	TEI-XML for	default:Reihe_B/51/ZNB-1996-51b-1235.pdf
	Identifier	ZNB-1996-51b-1235
	Volume	51

65	Author	Rainer Pöttgen, Gunter Kotzyba	Requires cookie*
	Title	Ti2Ni2In, Zr2Co2In, and Zr2Pd2In -Intermetallic Compounds with Ordered U3Si2 and Zr3Al2 Type Structure
	Abstract	T i:N i2ln, Zr2Co2ln, and Zr^Pd^In were synthesized by reacting the elements in an arc-melting furnace and subsequent annealing at 1070 K. The compounds were investigated by X-ray diffraction on both powders as well as single crystals. Z rC o iIn adopts the ordered U jSi: type structure: P4/mbm, a = 720.54(7), c = 331.59(4) pm. The structure consists of planar [Co2lnj layers with C02 dumb-bells which are separated by the zirconium atoms. Ti2Ni2ln and Z n P d 2ln crystallize with the ordered Z riA b type structure (space group P42/mnm), a superstructure of U?Si2: a = 694.3(2), c = 623.2(2) pm for TioNi^In and a = 746.0(1), c = 686.1(1) pm for Zr2Pd2ln. The Ni2 and Pd2 dumb-bells in the Ni2ln and Pd2ln layers of Ti2Ni2In and Z n P ^ I n are shifted from the mirror planes of the subcell resulting in puckered layers with weak interlayer Ni-Ni and Pd-Pd contacts, respectively. The indium atoms in these compounds occupy [Tis] and [Zr*] square prisms while the transition metal atoms are surrounded by [Tia] and [Zr6] trigonal prisms. These structural fragments are derived from the CsCl and AIB2 type structures. Chemical bonding in these intermetallic compounds is briefly discussed. Magnetic susceptibility measurements of compact polycrystalline samples indicate Pauli paramagnetism.
	Reference	Z. Naturforsch. 51b, 1248—1254 (1996); received February 29 1996
	Published	1996
	Keywords	Intermetallic Compounds, Crystal Structure, Pauli Paramagnetism
	Similar Items	Find
	DEBUG INFO
	TEI-XML for	default:Reihe_B/51/ZNB-1996-51b-1248.pdf
	Identifier	ZNB-1996-51b-1248
	Volume	51

66	Author	C. Wadewitz, Hk Müller-Buschbaum	Requires cookie*
	Title	Strukturelle Unterschiede zwischen Sr2(V 0)(A s04)2 und Ba2(V 0)(P 04)2 Strucural Differences between Sr2(V 0 )(A s0 4)2 and Ba2(V 0 )(P 0 4)2
	Abstract	Two new alkaline earth vanadyl compounds, Sr2(V 0)(A s 0 4)2 (I) and Ba2(V 0)(P 0 4)2 (II), have been prepared by solid state reactions in closed quartz tubes and characterized by sin gle crystal X-ray diffraction methods. Crystal data: (I): monoclinic, C ,h -12/a, a = 6.873(2), b = 16.307(4), c = 7.196(2) A, ß = 115.67(2), Z = 4; (II): monoclinic, C^-I2, a = 9.471(2), b = 5.443(1), c = 16.972(4) Ä, ß = 101.65(2), Z = 4. (I) is isotypic to Sr2(V 0)V 20 8 and Sr2(V 0)(P 0 4)2. (II) shows significant differences to the strontium compounds as well as to Ba2(V 0)(V 0 4)2. The differences of the crystal chemistry and the similarity of (II) to Ba2(V 0)(P 0 4)2 H20 are discussed.
	Reference	Z. Naturforsch. 51b, 1290—1294 (1996); eingegangen am 26. April 1996
	Published	1996
	Keywords	Barium, Strontium, Vanadium, Phosphorus, Arsenic, Oxygen, Crystal Structure
	Similar Items	Find
	DEBUG INFO
	TEI-XML for	default:Reihe_B/51/ZNB-1996-51b-1290.pdf
	Identifier	ZNB-1996-51b-1290
	Volume	51

67	Author	Matthias Asbrand, Brigitte Eisenmann	Requires cookie*
	Title	Ein neues Baumuster für ein heteronukleares 11 -Valenzelektronensystem: gefaltete ^ [SnBi]2~-Zickzack-Ketten in der Struktur von K2[SnBi] A Novel Structure Pattern for a Heteronuclear 11 Valence Electron System: Folded ^ [SnBi]2" Zigzag Chains in the Structure of K2[SnBi]
	Abstract	The compound K2[SnBi] was prepared by reaction of stoichiometric amounts of the elements in graphitized quartz ampoules. K2[SnBi] crystallizes in the orthorhombic system, space group Pbcm (No 57), Z = 4, with a = 680,4(3), b = 1339,(4) and c = 649,9(3) pm. The crystal structure of K2[SnBi] is characterized by folded infinite [SnBi] zigzag chains of alternating Sn and Bi atoms. The chains are bent at each Bi atom, the Sn atoms are located at the fold of the chain. Apart from the two covalent Sn-Bi bonds, each Sn atom has two additional collinear Sn-Sn contacts in direction of the fold of the chain which in terms of partial bonds can be assigned a bond order of one half. The repeating unit of the chain [Sn2Bi2]4_ is strongly related to the isoelectronic butterfly [Si4]6-in Ba3Si4.
	Reference	Z. Naturforsch. 51b, 1301—1304 (1996); eingegangen am 8. März 1996
	Published	1996
	Keywords	Dipotassium Bismutidostannate, Preparation, Crystal Structure, Tin-Bismuth Chain
	Similar Items	Find
	DEBUG INFO
	TEI-XML for	default:Reihe_B/51/ZNB-1996-51b-1301.pdf
	Identifier	ZNB-1996-51b-1301
	Volume	51

68	Author	Crystal, FrankH. Artm Anna, D. Ietrich, M. Ootz, Reinhard Schwesinger	Requires cookie*
	Title	Zur Kristallchemie ungeladener Phosphazen-Basen, I [1] Strukturen zweier Hydrate und eines Acetats von Tris(dimethylamino)methyliminophosphoran
	Abstract	C hem istry o f U ncharged Phosphazene Bases, I [ 1 ] Structures o f Two H ydrates and an A cetate o f T ris(dim ethylam ino)m ethylim inophosphorane Two hydrates and an acetate of the uncharged, very strong phosphazene base tris(dimethylamino)methyliminophosphorane, (Me2N)3P=NMe (for short Me-P]), have been characterized by their crystal structures. A monohydrate, Me-P, • H:0 , mp. 3°C, is monoclinic
	Reference	Z. Naturforsch. 51b, 1369—1374 (1996); eingegangen am 11. März 1996
	Published	1996
	Keywords	Crystal Structure, Hydrate, Hydrogen Bonding, Phosphazene, Uncharged Base
	Similar Items	Find
	DEBUG INFO
	TEI-XML for	default:Reihe_B/51/ZNB-1996-51b-1369.pdf
	Identifier	ZNB-1996-51b-1369
	Volume	51

69	Author	Hk Wedel, Müller-Buschbaum	Requires cookie*
	Title	Zur Kenntnis eines Barium-Oxoniobat-Tellurats: Ba2 Nb2TeOi<) On a Barium-Oxoniobate-Tellurate: Ba2Nb2TeO,0 B
	Abstract	Single crystals of Ba^NbiTeO,,) have been prepared by solid state reactions in air. X-ray investigations led to orthorhom bic symmetry, space group D ^-Pbca, a = 7.242(4), b = 12.433(3), c = 9.932(3) Ä. Z = 4. Nb""'* and Te6+ show octahedral coordination by O '-. The crystal structure is characterized by planes of edge-and corner-sharing NbOh-and TeOfloctahedra. It is shown that in spite of nearly identical lattice constants of Ba2Nb2TeO \|0 with compounds of the composition M() 5BaNbTe20 9 the so far unknown crystals of these substances may not be derived from the Ba^Nb^TeOio type.
	Reference	Z. Naturforsch. 51b, 1407—1410 (1996); eingegangen am 12. April 1996
	Published	1996
	Keywords	Barium, Niobium, Tellurium Oxide, Crystal Structure
	Similar Items	Find
	DEBUG INFO
	TEI-XML for	default:Reihe_B/51/ZNB-1996-51b-1407.pdf
	Identifier	ZNB-1996-51b-1407
	Volume	51

70	Author	Ot, (.M = Niobium, Tantalum) B Wedel, Hk Miiller-Buschbaum	Requires cookie*
	Title	Zur Kristallchemie der Barium-Oxometallat-Tellurite: Ba2M6Te202i (M = Niob und Tantal) On the Crystal Chemistry of the Barium Oxometallate-Tellurites Ba-,M6Te
	Abstract	Single crystals of Ba2Nb6Te20 2\| (I) and Ba2Ta6Te20 2\| (II) have been prepared by solid state reactions in air. X-ray investigations led to monoclinic symmetry, space group C 3h -C2/m, (I): a = 16.699(3), b = 5.671(2), c = 9.611(2) A, ß = 96.92(2), (II): a = 16.655(8), b = 5.667(2), c = 9.576(4) Ä, ß = 96.64(7), Z = 2. N b5+ or Tas+ show octahedral and Te4+ a one sided triangular coordination by O 2 -. The position and distance of the lone pair on Te4+ have been estimated by calculations of the Coulomb terms of the lattice energy. The polyhedron around Ba2+ may be described by a triply capped BaO^cube. The crystal structures are dominated by a ^ [Nb60 2l] l2~ network with incorporated Ba~+ and Te4+ ions.
	Reference	Z. Naturforsch. 51b, 1411—1414 (1996); eingegangen am 28. März 1996
	Published	1996
	Keywords	Barium, Niobium, Tantalum, Tellurium, Crystal Structure
	Similar Items	Find
	DEBUG INFO
	TEI-XML for	default:Reihe_B/51/ZNB-1996-51b-1411.pdf
	Identifier	ZNB-1996-51b-1411
	Volume	51

71	Author	Mitra Ghassemzadeh, Klaus Harms, Kurt Dehnicke	Requires cookie*
	Title	N ,N
	Abstract	D im ethylharnstoff als chelatisierende Lewis-Säure: Synthese und K ristallstrukturen von PPh4[C l(H 2M e2N2CO)] und (PPh4)2[C l(H 2 M e2N2CO)]Cl N.N'-Dimethylurea as a Chelating Lewis Acid: Synthesis and Crystal Structures of PPh4[Cl(H2Me2N2CO)] and (PPh4)2[Cl(H2Me2N2CO)]Cl The title compounds have been prepared from tetraphenylphosphonium chloride and N,N'-dimethylurea in acetonitrile using different molar ratios of the educts. Both compounds were characterized by IR spectroscopy and by crystal structure determinations. PPh4[C l(H ,M e,N ,C O)l: Space group P i, Z = 4 ,a = 1021.8(2), b = 1192.7(2), c = 2143.9(4) pm, o = 87.21(3)°, ß = 85.95(3)°, = 74.16(3)° (-50°C). (PPh4MCl(H,Me-,N-,CO)]Cl: Space group P2,/n, Z = 4, a = 1138.4(2), b = 2855.4(3), c = 1394.0(1) pm, ß = 91.19(10)° (-60°C). In both compounds the N.N'-dimethylurea molecule acts as a chelating Lewis acid via two Cl -H hydrogen bonds forming nearly planar ClH 2N: C-six-membered heterocycles.
	Reference	Z. Naturforsch. 51b, 1423—1427 (1996); eingegangen am 5. Juni 1996
	Published	1996
	Keywords	Chloride Complexes, NN'-Dimethylurea, Synthesis, Crystal Structure
	Similar Items	Find
	DEBUG INFO
	TEI-XML for	default:Reihe_B/51/ZNB-1996-51b-1423.pdf
	Identifier	ZNB-1996-51b-1423
	Volume	51

72	Author	Tetraazadibenzo Macrocycle, Ralf Feldhaus, Jens Köppe, Rainer Mattes, Ulrich Voet	Requires cookie*
	Title	Synthesis and Structures of the Vanadyl, Cobalt(III), Nickel(II), Copper(II), Zinc(II) and Palladium(II) Complexes of a 14-Membered Unsaturated
	Abstract	The synthesis and structural characterisation of complexes of the 14-membered macrocyclic trans-N4 dibenzo ligand 7,8,9,16,17.18-hexahydrodibenzo[e,l][ 1,4, 8.11 ]-tetraazacyclotetra-decine (L 1) is described. The crystal structures of six compounds were determined by single crystal X-ray diffraction. In [CuL1 ]2+ the metal atom is tightly bound within the macrocyclic cavity. The Cu-N bonds [201.2(3) and 191.8(3) pm] are rather short. Zn(II) is penta-coordinated in [Zn(L')C l]+ with the metal center outside the cavity. L 1 is deprotonated at one or both secondary amine functions in the complexes [N i(L '-H)]+, [Co(L -2H)]+, [VO(L'-2H)] and [Pd(L'-2H)]. With the exception of [VO (L'-2H)] the metal ions assume nearly square planar N4-coordination, which is very rare for Co(III). Salts of [Co(L'-2H)]+ display a temperature independent magnetic moment of 0,64 B. M. The nickel, cobalt and palladium complexes show remarkably short metal-nitrogen bond distances: Ni-N [183.8(8)], Co-N [181.8(2)] and Pd-N [194.5(6) pm], respectively. The UV/Vis and EPR spectra, and the electrochemical behaviour of some of these complexes are also discussed.
	Reference	Z. Naturforsch. 51b, 1449—1458 (1996); eingegangen am 1. April 1996
	Published	1996
	Keywords	Macrocyclic N4-Donor Ligands, Transition Metal Complexes, Crystal Structure
	Similar Items	Find
	DEBUG INFO
	TEI-XML for	default:Reihe_B/51/ZNB-1996-51b-1449.pdf
	Identifier	ZNB-1996-51b-1449
	Volume	51

73	Author	Cl Walter, Frank, GuidoJ. Reiß	Requires cookie*
	Title	Spezielle Alkylammoniumhexachlorometallate, II [1] Synthese und Kristallstruktur von Bis(l,2-diammoniopropan)hexachlororhodat(III)-chlorid, [H3N-CH(CH3)-CH2-NH3]2[RhCl6]Cl Alkylammonium Hexachlorometallates, II [1] Synthesis, and Crystal Structure of Bis( 1,2-diammoniopropane) Hexachlororhodate(III) Chloride, (H3N-CH(CH3)-CH9-NH3]-,\|RhCl6]
	Abstract	Bis(1,2-diammoniopropane) hexachlororhodate(III) chloride, [H ^N -CH tCI-fO -CH i-N H ^ [RhCl6]Cl (1) has been obtained by the reaction of rhodium(III) chloride with rac-1,2-diammoniopropane dihydrochloride in hydrochloric acid solution. The quasi-ternary com pound, which crystallizes in the orthorhombic space group Pbca (a -11.0007(13) A, b = 22.181(2) A, c = 14.638(2) A, V = 3571.7(7) Ä \ T = -1 2 0 °C, Z -8) contains two crystallographically independent 1,2-diammoniopropane ions beside one hexachlororhodate and one chloride ion. One of the cations shows a R/S-S/R-disorder of enantiomeric pairs in the centrosymmetric crystal lattice. The packing scheme is determined by a complex framework of hydrogen bonds.
	Reference	Z. Naturforsch. 51b, 1459—1463 (1996); eingegangen am 9. April 1996
	Published	1996
	Keywords	Hexachlororhodate, Alkylammonium Salt, Crystal Structure, Hydrogen Bonding
	Similar Items	Find
	DEBUG INFO
	TEI-XML for	default:Reihe_B/51/ZNB-1996-51b-1459.pdf
	Identifier	ZNB-1996-51b-1459
	Volume	51

74	Author	Walter Frank, GuidoJ. Reiß	Requires cookie*
	Title	Spezielle Alkylammoniumhexachlorometallate, III [1] Synthese und Kristallstruktur von Tris(guanidinium)- hexachlororhodat(III)-monohydrat, [C(NH2)3 ]3 [RhCl6] * H20 Alkylammonium Hexachlorometallates, III [1] Synthesis, and Crystal Structure of Tris(guanidinium) Hexachlororhodate(III) Monohydrate, [C(NH2)3]3[RhCl6] * H20
	Abstract	Tris(guanidinium) hexachlororhodate(III) monohydrate, [C(NH2)3]3[RhCl6] • H20 (1) has be en obtained by the reaction of rhodium(III) chloride with guanidine hydrochloride in hydrochlo ric acid solution. 1 crystallizes in the triclinic space group P i (o = 7.6013(9) A, b = 8.6912(10) A, c = 15.956(2) Ä, q = 93.177(10)°, ß = 101.691(10)°, 7 = 113.995(9)°, V = 931.8(2), Z = 2). Two crystallographically independent hexachlororhodate ions, three crystallographically independent guanidinium ions and one water molecule are linked by a complex framework of hydrogen bonds.
	Reference	Z. Naturforsch. 51b, 1464—1468 (1996); eingegangen am 9. April 1996
	Published	1996
	Keywords	Hexachlororhodate, Guanidinium Salt, Crystal Structure, Hydrogen Bonding
	Similar Items	Find
	DEBUG INFO
	TEI-XML for	default:Reihe_B/51/ZNB-1996-51b-1464.pdf
	Identifier	ZNB-1996-51b-1464
	Volume	51

75	Author	KarstenF. Ischerl, F. Eldbaum-M, Petra Öller1, M. Vogta, W. Ichael, VolkerW. Achholdb, H. Inter11, Orst Sabrow	Requires cookie*
	Title	Die Kristallstruktur von CsNaTe The Crystal Structure o f CsNaTe
	Abstract	The crystal structure of CsNaTe has been determined by X-ray diffraction of single crystals. The hygroscopic CsNaTe crystallizes in the tetragonal space group P4/nmm (Z = 2) with the cell parameters a = 527.6(1) and c = 847.8(2) pm. The structure was determined from 237 independent reflections by Patterson and Fourier methods {R] = 0.065; wR2 = 0.080).
	Reference	Z. Naturforsch. 51b, 1576—1578 (1996); eingegangen am 10. Mai 1996
	Published	1996
	Keywords	Cesium, Sodium Ternary Tellurides, Crystal Structure
	Similar Items	Find
	DEBUG INFO
	TEI-XML for	default:Reihe_B/51/ZNB-1996-51b-1576.pdf
	Identifier	ZNB-1996-51b-1576
	Volume	51

76	Author	M. Itra, G. Hassem Zadeha, JörgM. Agullb, D. Ieter Fenskeb, KurtD. Ehnickea	Requires cookie*
	Title	PPh4[Cl-I-C6H5] und PPh4[Br-I-C6H5] Iodobenzene as Lewis-Acid: Synthesis and Crystal Structures of PPh4[Cl-I-C6H5] and PPh4[Br-I-C6H 5]
	Abstract	The donor-acceptor complexes [X-I-C6H5]~ with X" = Cl-and Br-have been prepared as tetraphenylphosphonium salts from iodobenzene and PPh4X in acetonitrile solutions. They form colourless single crystals, which were characterized by crystal structure determinations. PPh4[Cl-I-C6H5]: Space group P2,/c, Z = 4. Lattice dimensions at -70°C: a = 1301.1(5),
	Reference	Z. Naturforsch. 51b, 1579—1582 (1996); eingegangen am 18. Juni 1996
	Published	1996
	Keywords	Halide Complexes of Iodobenzene, Synthesis, Crystal Structure
	Similar Items	Find
	DEBUG INFO
	TEI-XML for	default:Reihe_B/51/ZNB-1996-51b-1579.pdf
	Identifier	ZNB-1996-51b-1579
	Volume	51

77	Author	M. M. Om, K. D. Ertza, Ehnickea ', J. M. Agullb	Requires cookie*
	Title	A
	Abstract	Colourless single crystals of the title compound are obtained from a saturated solution of NaOSiPh, in toluene in a humid atmosphere. We have characterized [N a ^ O S iP h ^ H iO),] by IR spectroscopy and by a crystal structure determination. Space group R3, Z = 6 , R -0.056. Lattice dimensions at -70°C: a -b = 1540.3 pm, c = 2639.6 pm. The compound has the structure of a Na40 4 heterocubane which is only slighty distorted and in which one of the sodium atoms is not hydrated and shows coordination number three. Die Kristallstruktur von [Na4(0SiPh3)4(H20)3]
	Reference	Z. Naturforsch. 51b, 1583—1586 (1996); eingegangen am 9. Juli 1996
	Published	1996
	Keywords	Sodium Triphenylsilanolate Hydrate, Synthesis, Crystal Structure
	Similar Items	Find
	DEBUG INFO
	TEI-XML for	default:Reihe_B/51/ZNB-1996-51b-1583.pdf
	Identifier	ZNB-1996-51b-1583
	Volume	51

78	Author	Z. Naturforsch	Requires cookie*
	Title	Über ein Blei-Kupfer-Tellurat PbC^TeOy mit Cu2+ in deformiert tetragonal pyramidaler und tetraedrischer Sauerstoffkoordination
	Abstract	On a Lead C opper Tellurate P b C u 3T e 0 7 Containing C u2+ in D istorted Square Pyram idal and Tetrahedral O xygen C oordination B. W edel, Hk. M üller-B uschbaum * PbCu3T e07 has been prepared from the element oxides by solid state reaction in air. Single crystal X-ray work led too orthorhombic symmetry, space group D^-Pnma, a = 10.488(1), b = 6.353(2), c = 8.813(2) A, Z = 4. Cu(1)0 5 square pyramids and Te06 octahedra are members of the anionic part of the crystal structure, Cu(2) atoms show tetrahedral coordination by oxygen. The C u (2)2+ and the Pb2+ cations are incorporated into a [Cu(l)2Te07] network. PbCu,Te07 can thus be viewed as a lead copper oxocuprate(II) tellurate. Calculations of the Coulomb terms of lattice energy reveal two possible positions for the lone pair of electrons at Pb'+.
	Reference	Z. Naturforsch. 51b, 1587—1590 (1996); eingegangen am 21. Mai 1996
	Published	1996
	Keywords	Lead, Copper, Tellurium, Oxide, Crystal Structure
	Similar Items	Find
	DEBUG INFO
	TEI-XML for	default:Reihe_B/51/ZNB-1996-51b-1587.pdf
	Identifier	ZNB-1996-51b-1587
	Volume	51

79	Author	Herrn Prof, K. Dr	Requires cookie*
	Title	Reaktion
	Abstract	von Ph3P=C=PPh3 mit Fe(CO)5; Molekülstrukturen von (CO)4Fe=C=C=PPh3 und Fe3(CO)9(/X3-r72-C=C-PPh3) Reaction o f Ph3P= C =P Ph3 w ith Fe(C O)5; M olecular Structures of (CO)4F e= C =C = P P h3 and Fe3(C O)9(/i3-/72-C = C -P P h 3). W olfgang P e tz * a, Frank W eller5 aGmelin- The ylide Ph3P=C=PPh3 reacts with Fe(CO)5 in toluene to give the metallacumulene (CO)4Fe=C=C=PPh3 (1) and 0=PPh3. A mixture of the ylide with its hydrolysis product Ph2P(0)-CH=PPh3 produces the trinuclear cluster Fe3(CO)9(^ 3-?/2-C=CPPh3) (2) in low yields which can also be obtained from 1 and Fe2(CO)9. Both compounds contain the same ligand bonded in a terminal (1) and in a bridging (2) manner. 1 and 2 crystallize in the monoclinic space groups P2(l)/n and P2(l)/c, respectively, with the unit cell parameters a = 1008.35(10), b= 1167.89(10), c = 1875.10(10) pm, ß = 99.824(10)° for 1 and a = 853.6(2), b = 1966.6(4), c = 1770.2(4) pm; ß = 99.05(3)° for 2. The compounds are further characterized by IR and NMR (l3C , 31P) spectroscopy and elemental analyses.
	Reference	Z. Naturforsch. 51b, 1598—1604 (1996); eingegangen am 7. Juni 1996
	Published	1996
	Keywords	Crystal Structure, Hexaphenylcarbodiphosphorane, Iron Acetylide Complex, Metallacumulene
	Similar Items	Find
	DEBUG INFO
	TEI-XML for	default:Reihe_B/51/ZNB-1996-51b-1598.pdf
	Identifier	ZNB-1996-51b-1598
	Volume	51

80	Author	Z. Naturforsch	Requires cookie*
	Title	On the Structure o f f-B utylam inotriphenylphosphonium Iodine D ichloride
	Abstract	A del A m e ra, A n d rea M ayerb, D ouglas H o c, H ans Z im m erb * The structures of f-butylaminotriphenylphos-phonium iodine dibromide and iodine dichloride were determ ined by Raman spectroscopy and X-ray crystallographic structure analysis. The iodine dibromide [IBr2]~ species was assigned a centro symmetric nature, whereas the iodine dichloride [IC12]" possesses a non-centrosymmetric structure.
	Reference	Z. Naturforsch. 51b, 1663—1665 (1996); received August 30 1995
	Published	1996
	Keywords	/-Butylaminotriphenylphosphonium Iodine D i chloride, Raman Spectra, Crystal Structure
	Similar Items	Find
	DEBUG INFO
	TEI-XML for	default:Reihe_B/51/ZNB-1996-51b-1663_n.pdf
	Identifier	ZNB-1996-51b-1663_n
	Volume	51

4