| 61 | Author
| H., M. Üller-Buschbaum, L. Walz | Requires cookie* | | Title
| Einkristallröntgenstrukturanalyse an Quecksilberchromat(VI)  | | | Abstract
| g 3 0 2 C r 0 4 Single C rystal X -Ray S tructure D eterm ination of a M ercury C hrom ate(V I): H g30 2C r 0 4 Th. H an sen , H k. Single crystals of Hg3C r0 6 have been prepared by high pressure techniques (3600 bar oxygen, 600 °C). Hg3C r06 crystallizes with trigonal symmetry, space group D |-P 3 212, a = 7.137(1), c = 10.017(2)Ä, Z -3. Nearly linear O -H g -O dumb-bells are connected in planes, forming strongly puckered nets of six-membered rings. Each Hg60 6 ring is centered by a C r04 tetrahedron; the C r04 tetrahedra are arranged in two equally occupied split positions. | | |
Reference
| (Z. Naturforsch. 50b, 47—5 [1995]; eingegangen am 2. August 1994) | | |
Published
| 1995 | | |
Keywords
| Mercury, Chromium, Oxide, Crystal Structure | | |
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| default:Reihe_B/50/ZNB-1995-50b-0047.pdf | | | Identifier
| ZNB-1995-50b-0047 | | | Volume
| 50 | |
62 | Author
| E. Peters, Hk Müller-Buschbaum | Requires cookie* | | Title
| Ein Titan-Tantaloxid mit Ti11: Ti0 ,3 3 Ta0 ,6 7O2 (TiTa20 6)  | | | Abstract
| Black single crystals o f Tio^Tao 670 2 have been prepared by C 0 2-LA SER techniques heating a mixture of TiO and Ta20 5 to T > 2000 °C. The titanium tantalum oxide crystallizes with tetragonaj symmetry, space group D 4 h -P 4 2/mnm, lattice constants a = 4.7344(6) A, c = 3.0504(2) A , Z = 2. Ti().33Ta0.67O 2 represents the compound TiTa20 6 with rutile structure because of the statistical distribution of Ti2+ and Ta5+. The composition of rutile-type com pounds is discussed in more general terms. | | |
Reference
| Z. Naturforsch. 50b, 1167—1170 (1995); eingegangen am 16. Januar 1995 | | |
Published
| 1995 | | |
Keywords
| Titanium, Tantalum, Oxide, Crystal Structure | | |
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| default:Reihe_B/50/ZNB-1995-50b-1167.pdf | | | Identifier
| ZNB-1995-50b-1167 | | | Volume
| 50 | |
63 | Author
| V. Ikto, R. Keimes, A. Lb Rech, M. Ewis | Requires cookie* | | Title
| M g6N i16A s7 -a N ew G Phase  | | | Abstract
| Mg6N i16A s7 (F m 3m ; a = 11.479(1) Ä; Z = 4) was prepared by heating a mixture of the ele ments and investigated by m eans of single crystal X-ray methods. The arsenide crystallizes in a m o dified Th6Mn23 type structure, similar to many ternary com pounds of the com position A 6M 16X 7, called G phases. | | |
Reference
| Z. Naturforsch. 50b, 1275—1276 (1995); eingegangen am 6. März 1995 | | |
Published
| 1995 | | |
Keywords
| Ternary Nickelarsenide, Magnesium, Crystal Structure | | |
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| default:Reihe_B/50/ZNB-1995-50b-1275_n.pdf | | | Identifier
| ZNB-1995-50b-1275_n | | | Volume
| 50 | |
64 | Author
| T. Gressling, Hk Müller-Buschbaum | Requires cookie* | | Title
| Zur Kristallstruktur von Ce2(W 0 4)3 On the Crystal Structure of Ce2(W 0 4)3  | | | Abstract
| Single crystals of Ce2(W 0 4)3 have been prepared by crystallisation from molten mixtures of W 0 3 and C e 0 2. The compound shows m onoclinic symmetry, a = 7.813(4), b = 11.720(2), c = 11.586(3), ß = 109.36(3)°, Z = 4, and is isotypic to Eu2(W 0 4)3, but shows large differences of the atomic coordinates especially of oxygen. The crystal structure of Ce2(W 0 4)3 is charac terized by W (1)0 4 tetrahedra, square W (2)0 5 pyramids and a distorted capped trigonal prism of oxygen around cerium. The decrease o f the oxidation states of C e4+ or W6+ was proved by thermogravimetric and magnetic measurements as well as by calculations of the Coulomb terms of lattice energy. | | |
Reference
| Z. Naturforsch. 50b, 1513—1516 (1995); eingegangen am 25. Mai 1995 | | |
Published
| 1995 | | |
Keywords
| Cerium, Tungsten, Oxygen, Crystal Structure | | |
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| default:Reihe_B/50/ZNB-1995-50b-1513.pdf | | | Identifier
| ZNB-1995-50b-1513 | | | Volume
| 50 | |
65 | Author
| Karl Peters3, Eva-Maria Peters3, Gerhard Bringmannb, Sven Harmsenb | Requires cookie* | | Title
| l,4-Dibromonaphthalene-2,3-diyI- bis(l'-bromo-2'-naphthoate) * CHC13, a Potential Precursor to Lactone-Bridged Teraryls  | | | Abstract
| The title compound was prepared from 1,4-di-bromo-2,3-dihydroxynaphthalene by two-fold es-terification with l-bromo-2-naphthoic acid. It crystallizes from chloroform in the triclinic sys | | |
Reference
| Z. Naturforsch. 51b, 144—146 (1996); received June 20 1995 | | |
Published
| 1996 | | |
Keywords
| Crystal Structure, Biaryl Coupling, Teraryls | | |
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| default:Reihe_B/51/ZNB-1996-51b-0144_n.pdf | | | Identifier
| ZNB-1996-51b-0144_n | | | Volume
| 51 | |
66 | Author
| D. Frerichs, C. H. Park, Hk Müller-Buschbaum | Requires cookie* | | Title
| Zur Kenntnis der Tief-und Hochtemperaturform eines Oxidarsenats des Zinks: Zn0Z n3(A s0 4)2 On the Low and High Temperature Form o f an Oxidearsenate of Zinc: Z n 0 Z n 3( A s 0 4)2  | | | Abstract
| Single crystals of the low (t-) and high (h-) temperature form o f Z n 0 Z n 3(A s 0 4)2 have been prepared by flux and by C 0 2-L A SER techniques respectively. Both compounds crystal lizes monoclinic, space group C2h-P2;/n with the lattice parameters t-Z n 0 Z n 3(A s 0 4)2: a = 9.807(3), b = 8.180(2), c = 9.967(2) A , ß = 116.53(2)°, Z = 4 and h -Z n 0 Z n 3(A s 0 4)2: a = 9.743(3), b = 8.163(8), c = 17.933(2) A , ß = 91.55(2)°, Z = 8. Similarities and differences of the crystal structures will be discussed. | | |
Reference
| Z. Naturforsch. 51b, 233 (1996); eingegangen am 10. Juli 1995 | | |
Published
| 1996 | | |
Keywords
| Zinc, Arsenic, Oxide, Crystal Structure | | |
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| default:Reihe_B/51/ZNB-1996-51b-0233.pdf | | | Identifier
| ZNB-1996-51b-0233 | | | Volume
| 51 | |
67 | Author
| Silke Busche, K. Arsten Bluhm | Requires 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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| default:Reihe_B/51/ZNB-1996-51b-0309.pdf | | | Identifier
| ZNB-1996-51b-0309 | | | Volume
| 51 | |
68 | Author
| D. Frerichs, C. H. Park, HkM. Üller-B, Uschbaum | Requires cookie* | | Title
| Zur Kenntnis zweier Formen des Zinkorthoarsenates: a-Z n 3(A s04)2 und /3-Zn3(A s0 4)2 On Two Forms o f Zinc O rthoarsenate: a -Z n 3(A s 0 4)2 and /3-Zn3(A s 0 4)2  | | | Abstract
| Single crystals of two forms of zinc orthoarsenate (a-Z n3(A s04)2 (I) and /3-Zn3(A s04)2 (II)) have been prepared by flux techniques. Both compounds crystallize monoclinically, space groups (I): Cih-P2l/c, (II): Cih-P21/n, with the lattice parameters (I): a = 6.306(2), b = 8.652(2), c = 'ol 1.321(4) A, ß = 92.25(5) °, Z = 4 and (II): a = 5.281(1), b = 8.494(2), c = 7.726(3) A, ß = 96.39(3)°, Z = 2. ct-Zn3(A s04)2 is isotypic to I-Cu3(A s04)2 and ß-Zn3(A s04)2 to 7-Zn3(P 0 4)2. Similarities and differences of the crystal structures are discussed. | | |
Reference
| Z. Naturforsch. 51b, 333—337 (1996); eingegangen am 31. August 1995 | | |
Published
| 1996 | | |
Keywords
| Zinc, Arsenic, Oxide, Crystal Structure | | |
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| default:Reihe_B/51/ZNB-1996-51b-0333.pdf | | | Identifier
| ZNB-1996-51b-0333 | | | Volume
| 51 | |
69 | Author
| Karl Peters3, Eva-M Aria Peters3, G.Erhard Bringmannb, O. La, F. Schuppb | Requires cookie* | | Title
| l,3-Dimethoxy-677- benzo[b]naphtho[l,2-d]pyran-6-thione, a Thionolactone-Bridged Axially Prostereogenic Biaryl  | | | Abstract
| The title compound was prepared from the cor responding " ordinary" oxolactone bridged biaryl using Lawesson's reagent. It crystallizes from di-chloromethane / petroleum ether in the mono clinic system, space group P2xla; a = 1115.7(2), | | |
Reference
| Z. Naturforsch. 51b, 431—432 (1996); received September 9 1995 | | |
Published
| 1996 | | |
Keywords
| Crystal Structure, Stereochemistry, Biaryl Coupling | | |
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| default:Reihe_B/51/ZNB-1996-51b-0431_n.pdf | | | Identifier
| ZNB-1996-51b-0431_n | | | Volume
| 51 | |
70 | Author
| J. Feldmann, Hk Müller-Buschbaum | Requires 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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| default:Reihe_B/51/ZNB-1996-51b-0489.pdf | | | Identifier
| ZNB-1996-51b-0489 | | | Volume
| 51 | |
71 | Author
| Rolf Minkwitz, RaimUnd Bröchler, Hans Preut | Requires cookie* | | Title
| Low-Temperature Crystal Structure of the Inclusion Compound {[N(CH3)4+C1]2] * CH 3CN * h 2o  | | | Abstract
| The crystal structure of {[N(CH3)4+C1]2}-CFI3C N H 20 is reported. Cry-stalls are orthorhombic, space group Pnma, with a = 1622.9(15), b = 671.3(6), c = 1511.2(11) pm, V = 1646(2) 106 pm3 and Z = 4. | | |
Reference
| Z. Naturforsch. 51b, 599—601 (1996); eingegangen am 3. August 1995 | | |
Published
| 1996 | | |
Keywords
| Preparation, Crystal Structure, Inclusion Compound | | |
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| default:Reihe_B/51/ZNB-1996-51b-0599_n.pdf | | | Identifier
| ZNB-1996-51b-0599_n | | | Volume
| 51 | |
72 | Author
| Na2z, New Sodium, ZincateD. Trinschek, M. Jansen | Requires cookie* | | Title
| Na2Zn02, ein neues Natriumzinkat  | | | Abstract
| By reacting Na20 , which was produced in situ from NaN3 and NaN02, with reactive ZnO in the solid state, the synthesis of Na2Z n02 has been achieved. Na2Zn02 is metastable up to about 750°C. The novel sodium zincate crystallizes in the spaceogroup P2,/c (No. 14) with the lattice parameters a = 7.7352(2), b = 5.9782(2), c = 5.7248(2)Ä, ß = 94.934(3)°, Z = 4. According to a single crystal structure determination it is an representative of the anti type of the Ln2S20 (Ln = Er, Tm, Yb, Dy) structure. | | |
Reference
| Z. Naturforsch. 51b, 711—714 (1996); eingegangen am 10. August 1995 | | |
Published
| 1996 | | |
Keywords
| Sodium Zincates, Crystal Structure, Metastability | | |
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| default:Reihe_B/51/ZNB-1996-51b-0711.pdf | | | Identifier
| ZNB-1996-51b-0711 | | | Volume
| 51 | |
73 | Author
| Z. Naturforsch | Requires cookie* | | Title
| A -P r 2S3, D -H o2S3 und E -Y b 2S3: Synthese und Einkristallstrukturuntersuchungen  | | | Abstract
| The oxidation of reduced chlorides (MC12) or chloride-hydrides (MC1HV) of the lanthani des with sulfur (700-850 °C, 7 d, sealed tantalum capsules or evacuated silica vessels) usually results in the formation of the sesquisulfides M2S3 as the main products. In the presence of appropriate fluxes (e.g., alkali halides), the products often are obtained as single crystals, and the flux decides which modification is favoured. Ternary halides of the trivalent lanthanides with the corresponding alkali metal can mostly be found as the second components. Crystal growth and structural investigations of thus produced single crystals of Pr2S3 (from PrClH() 67 + S + NaCl, 5:5:1, A type: orthorhombic, Pnma (No. 62), Z = 4, a = 748.22(5), b = 405.51(3), c = 1560.74(9) pm, R = 0.024, Rw = 0.020), Ho^S, (from U -H o^S , + KI, 1:1, D type: mono clinic, P 2xim (No. 12), Z = 6, a = 1746.15(9), b = 400.23(3), c = 1012.43(6) pm, ß = 98.529(4)°, R = 0.041, Rw = 0.035), and YbiS3 (from T-Yb^S^ + KI, 1:1, E type: trigonal, R 3c (No. 167), Z = 6, a = 674.97(2), c = 1820.11(9) pm'. R = 0.019, Rw = 0.018) are reported here. In accordance with the lanthanide contraction, the trivalent cations (M3+) exhibit sulfur coordination numbers of 7 and 8 in A -P r 2S3, 6 and 7 in D -H o 2S3, and 6 in E -Y b 2S3 (corundum-type structure). | | |
Reference
| Z. Naturforsch. 51b, 733—738 (1996); eingegangen am 4. Oktober 1994 | | |
Published
| 1996 | | |
Keywords
| Lanthanides, Sesquisulfides, Synthesis, Crystal Structure | | |
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| default:Reihe_B/51/ZNB-1996-51b-0733.pdf | | | Identifier
| ZNB-1996-51b-0733 | | | Volume
| 51 | |
74 | Author
| H. V., A. Fischerb, P. G. Jonesb | Requires cookie* | | Title
| Eine unerwartete Synthese des Triphenyphosphazenium-chlorids, [(C6H5)3PNH2]+CI_ und eine Neubestimmung seiner Kristallstruktur  | | | Abstract
| Triphenylphosphazenium chloride has been prepared by the reaction of triphenylphos-phine with trimethylsilylazide in impure, wet dichloromethane. Yields are improved as stoi chiometric quantities of w ater are added. Colourless crystals are obtained by recrystallization from the same solvent. The crystals are triclinic, space group P I, Z=2, a = 894,6(3), b -979,8(3), c = 1142,9(4) pm, a = 107,27(3), ß = 93,70(3), y = 92,97(3)°. In the solid state the compound exists as [(C6H 5)3PNH2]+ cations, and Cl-anions. Dimeric units are formed by H-bonding. The crystal structure contains one molecule CH 2C12 per one molecule (C6H 5)3PNH2C1. The cation has a slightly irregular tetrahedral geometry around the P-atom with a relatively short P-N bond. | | |
Reference
| Z. Naturforsch. 51b, 865—868 (1996); eingegangen am 21. O ktober 1995 | | |
Published
| 1996 | | |
Keywords
| Triphenylphosphazenium Chloride, Synthesis, Crystal Structure | | |
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| default:Reihe_B/51/ZNB-1996-51b-0865.pdf | | | Identifier
| ZNB-1996-51b-0865 | | | Volume
| 51 | |
75 | Author
| N. Stock, W. Schnick | Requires cookie* | | Title
| Synthese, Kristallstruktur und Eigenschaften von l,l>3 ?3 ?3 -Pentaam*n° -l  | | | Abstract
| oxo-lA 5 ,3A 5 -diphosphaz-2-en, (NH2)2 (0)P-N=P(NH2)3 Synthesis, Crystal Structure, and Properties of 1,1,3,3,3-Pentaam ino-l-oxo-l A 5 , 3 A 5 -diphosphaz-2-ene, (NH2)2(0)P-N =P(N H i)3 Coarse crystalline (NH2)2(0)P-N=P(NH2)3 is obtained from a NH;* saturated CH2C12 suspen sion of (NH2)2(0)P-N=P(NH2)3 NH4C1 at room temperature. (NH2)2(0)P-N=P(NH2)3 NH4C1 is synthesized" by slow addition of C12(0)P-N=PC13 to a solution of NH3 in CH2C12 at -78 °C. Excess NH4C1 is removed by treatment with HNEt2 followed by extraction with CH2C12. The crystal structure of (NH2)2(0)P-N=P(NH2)3 has been determined by single crystal X-ray methods (P2(/c; a = 1462.8(3), b = 944.8(2), c = 1026.9(2) pm, /3 = 110.69(3)°; Z = 8). In the unit cell there are two crystallographically unique molecules. They form a three dimensional network by intermolecular hydrogen bonding interactions (N-H- • N > 313 pm. N-H • 0 > 293 pm). The investigation of the thermal properties shows decomposition with evolution of NH3 above 80 °C. | | |
Reference
| Z. Naturforsch. 51b, 1079—1083 (1996); eingegangen am 7. Dezember 1995 | | |
Published
| 1996 | | |
Keywords
| Aminophosphazene, Synthesis, Crystal Structure Precursor | | |
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| default:Reihe_B/51/ZNB-1996-51b-1079.pdf | | | Identifier
| ZNB-1996-51b-1079 | | | Volume
| 51 | |
76 | Author
| Wolfgang Czado, Ulrich Müller | Requires cookie* | | Title
| (PPh4)4Sb8Br28 Tetraphenylphosphonium Ikosioctabromooctaantimonate(III), (PPh4)4Sb8Br28  | | | Abstract
| The title compound was obtained by the reaction of PPh4Br, Sb2Se3, and bromine in dichloro-methane. Its crystal structure was determined by X-ray diffraction. Crystal data: a = 1249.1(2), b = 1307.8(2), c = 2152.3(4) pm, a = 102.93(2), ß = 100.83(2), 7 = 100.42(2)°, Z = 2, triclinic, space group P I . (PPh4)4Sb8Br28 is isotypic with (PPh4)4Sb8I28. The Sb8Br284~ ion can be taken as the association product of eight SbBr3 molecules with four B r-ions. Each Sb atom has a distorted octahedral coordination with three shorter (252 to 274 pm) and three longer (300 to 353 pm) Sb-Br bonds. The octahedra share common edges in two parallel rows of four octahedra each. The arrangement of the 28 bromine atoms corresponds to a section of a closest packing of spheres. Tetraphenylphosphonium-ikosioctabromooctaantimonat(III), | | |
Reference
| Z. Naturforsch. 51b, 1245—1247 (1996); eingegangen am 22. März 1996 | | |
Published
| 1996 | | |
Keywords
| Ocataikosabromooctaantimonate, Synthesis, Crystal Structure | | |
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| default:Reihe_B/51/ZNB-1996-51b-1245.pdf | | | Identifier
| ZNB-1996-51b-1245 | | | Volume
| 51 | |
77 | Author
| Joachim Pickardt, B. Ritta Kühn | Requires cookie* | | Title
| Metallkomplexe mit Guanidinderivaten als Liganden  | | | Abstract
| Kristallstrukturen von [Zn(cnge)2(SCN)2] 2H20 und Zn(eoge)Br2 (enge = Cyanoguanidin; eoge = 1-Ethoxyiminomethylguanidin) M etal C om plexes with G uanidine D erivatives as Ligands: Crystal Structures o f [Zn(cnge)2(SC N)2]-2H20 und Z n(eoge)B r2 (cnge = C yanoguanidine; eoge = 1-Ethoxyim inom ethylguanidine) Crystals of |Zn(cnge)2(SCN)2]-2H20 (1) were obtained by evaporation of an aqueous solution | | |
Reference
| Z. Naturforsch. 51b, 1469—1472 (1996); eingegangen am 3. April 1996 | | |
Published
| 1996 | | |
Keywords
| Cyanoguanidine, Zinc Complexes, Crystal Structures | | |
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| default:Reihe_B/51/ZNB-1996-51b-1469.pdf | | | Identifier
| ZNB-1996-51b-1469 | | | Volume
| 51 | |
78 | Author
| StefanH. Orstm, AnnW. Olfgang Schnick | Requires cookie* | | Title
| Synthese  | | | Abstract
| , K rista llstru k tu r und Eigenschaften von 1 ,1 , 1 > 3 * 3 , 3 -H e x a a m i n o -lA 5,3A5-diphosphazenium ehlorid[(N H 2)3PNP(NH2)3]Cl Synthesis, C rystal Structure, and Properties of 1,1,1,3,3,3-Hexaam ino-1 A5,3A5-diphosphazenium Chloride [(N H 2)3PN P(N H 2)3]C1 [(NH2)3PNP(NH2)3 ]C1 has been prepared by a three step synthesis. The last step is the ammo-nolysis of [C13PNPC13]C1. Single crystals of 1,1,1,3,3,3-hexaamino-1 A \ 3As-diphosphazenium chloride were obtained from an acetonitrile solution in a temperature gradient between 60 °C and room temperature. Between room temperature and -1 0 0 °C [(NH2)3PNP(NH2)3]C1 is sub ject to a phase transition. Therefore, the crystal structure was determined by single crystal X-ray methods at room temperature (P i, a = 584.7(1) pm, b = 732.1(1) pm, c = 1092.0(2) pm. q = 71.05(3)°, ß = 76.36(3)°, 7 = 89.83(3)°, Z = 2, R = 4.75 %, wR = 2.47 %). The cation [(NH2)3PNP(NH2)3]+ is built up by two corner sharing PN4 tetrahedra. Remarkably short P-N bonding distances have been observed and both PN4 tetrahedra exhibit a significant distortion resulting in two large and four small N-P-N bond angles. | | |
Reference
| Z. Naturforsch. 51b, 1732—1738 (1996); eingegangen am 26. Juni 1996 | | |
Published
| 1996 | | |
Keywords
| Aminophosphazenes, Synthesis, Crystal Structure | | |
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| default:Reihe_B/51/ZNB-1996-51b-1732.pdf | | | Identifier
| ZNB-1996-51b-1732 | | | Volume
| 51 | |
79 | Author
| G. Rebe, Frank Weller, Kurt Dehnicke, Prof | Requires 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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| default:Reihe_B/51/ZNB-1996-51b-1739.pdf | | | Identifier
| ZNB-1996-51b-1739 | | | Volume
| 51 | |
80 | Author
| Christian Meyer3, Dietrich Mootza, Birgit Bäckb, Rolf Minkwitzb | Requires 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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| default:Reihe_B/52/ZNB-1997-52b-0069.pdf | | | Identifier
| ZNB-1997-52b-0069 | | | Volume
| 52 | |
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