| 1 | Author
| | Requires cookie* | | Title
| Kristallstrukturen von Li6MgBr8 und Li2MgBr4  | | | Abstract
| C rystal Structure o f Li6M g B r8 and Li2M gB r4 M ichael Schneider, P eter K uske und H einz D ieter Lutz* U niversität G H Siegen, A norg an isch e C hem ie I, D-W -5900 Siegen Herrn Prof. Z. N aturforsch. 48b, 1 -6 (1 9 9 3); eingegangen am 24. A ugust 1992 C rystal S tructure, N eu tro n D iffraction, L ithium M agnesium Brom ide, Suzuki Type, X -R ay T he crystal structures o f the fast ionic c o n d u cto rs Li6M gB r8 an d Li2M gBr4 oC 14 and cF 56 were determ ined by single crystal X -ray diffractio n and n eu tro n pow der studies, respectively. A t am bient_tem perature, Li6AfBrs (M = Mg, M n) crystallize in a Suzuki-type stru ctu re (space gro u p F m 3 m , Z = 4, Li6M gB r8: a = 1098.0(1) pm, 114 unique reflections, R = 0.037). Li2M gB r4 oC 14 crystallizes in a S n M n 2S4-type structure (space group C m m m , Z = 2, a = 777.94(2), b = 1104.25(4), a n d c -386.55(1) pm , R, = 0.073, 318 K), the high-tem p eratu re polym orph (H T M I) in the Li2M n B r4 c F 56 type (space gro u p F d 3 m , Z = 8, a = 1124.55(4) pm , R, = 0.052, 673 K). These stru ctu re types are m ore o r less ordered N aC l superstructures. The therm al ellipsoids o f the lithium ions are discussed in term s o f the cond u ctio n pathw ays and the ord er-d iso rd er phase tran sitio n s observed. | | |
Reference
| (Z. Naturforsch. 48b, 1 [1993]) | | |
Published
| 1993 | | |
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| default:Reihe_B/48/ZNB-1993-48b-0001.pdf | | | Identifier
| ZNB-1993-48b-0001 | | | Volume
| 48 | |
5 | Author
| Crystal | Requires cookie* | | Title
| Kristallstruktur von Bromchlormethyleniminium-hexachloroantimonat BrCIC=NH2+SbCl6  | | | Abstract
| S tructure o f B rom ochlorom ethyleneim inium H exachloroantim onate BrCIC = N H 2+SbC l6" R. M inkw itz*, W. M eck stro th und H. P reut U niversität D o rtm u n d , Fachbereich Chem ie, P ostfach 500500, D-W -4600 D o rtm u n d 50 Z. N aturforsch. 48b, 1 9 -2 2 (1 9 9 3); eingegangen am 18. A u gust 1992 D ihalidom ethyleneim inium Salts, C rystal S tructure B rom ochlorom ethyleneim inium h ex ach lo ro an tim o n ate BrClC = N H 2+SbC l6" crystallizes in the space group P 2 ,/c w ith a = 979.6(5), b = 1140.5(5), c = 2162.1(10) pm , ß = 102.45(4)° and Z = 8. It is isostructural w ith C l2C = N H ,+S bC l6~. | | |
Reference
| (Z. Naturforsch. 48b, 19 [1993]) | | |
Published
| 1993 | | |
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| default:Reihe_B/48/ZNB-1993-48b-0019.pdf | | | Identifier
| ZNB-1993-48b-0019 | | | Volume
| 48 | |
7 | Author
| H. Einrich, Uwe Lay, M. Ichael Leise, Laszlo Zsolnai | Requires cookie* | | Title
| Propargyl-, Allenyl-und Alkinyl  | | | Abstract
| A norganisch-C hem isches In stitut der U niversität, Im N euenheim er Feld 270, D-W -6900 H eidelberg 1 Z. N atu rfo rsch . 48b, 2 7 -3 6 (1993); eingegangen am 23. M ärz 1992 P ropargyl, Allenyl and Alkynyl P hosphanes, C o o rd in atio n A bility, Isom erization, C rystal S tructure T he synthesis and reactivity o f non-co o rd in ated an d c o o rd in ated pro p arg y l pho sp h an es are discussed. T he isom erization o f the propargyl unit in (R)P(C 1)(C H 2C = C H) (3) (R = 2,4,6-'B u3C 6H 20) in the presence o f N E t3 yields the^ allenyl su b stitu ted p ro d u ct (R)P(C1)(CH = C = C H 2) (4). H ow ever, in the presence o f H N E t2 the dim ethylenecyclobutane 7 is form ed. D ifferent synthetic pathw ays for the p rep aratio n o f L "M P(Ph)m(C H 2C = C H)3 m com plexes (m = 2: L"M = (//5-C 5H 5)(C O)2M n: 10a; L"M = (C O)5Cr: 10 b; m = 1: L"M = (^5-C 5H 5)(C O)2M n: 13a; L"M = (?/5-C 5H 4M e)(C O)2M n: 13b) are described. T he synthesis o f the alkynyl substituted phosp h an e com pounds L"M P(Ph)m(C = C R)3 m (m = 2: R = Ph, LnM = (/;5-C 5H 5)(C O)2M n: 20a; L"M = (C O)5Cr: 20b; R = "Bu, L"M = (C O)5Cr: 20c; m = 1: R = Ph, L"M = (/75-C 5H 5)(C O)2M n: 22) was also possible. The reaction o f (>/5-C 5H 4M e)(C O),M n P P h (C H ,C = C H)2 (13 b) w ith C o 2(C O)8 affords in high yields (V5-C 5H 4M e)(C O)2M nPPh[(?/2-C H 2C = C H)C o 2(C O)6]2 (15). All new co m pounds have been characterized by analytical a n d spectroscopic d a ta (IR , 'H -, 13C { 'H } -, 31P { 'H } -N M R , M S) an d (;/5-C 5H 5)(C O)2M n P (P h)(C H 2C = C H)2 (13a) by X -ray analysis. | | |
Reference
| (Z. Naturforsch. 48b, 27 [1993]) | | |
Published
| 1993 | | |
Keywords
| Phosphane, Synthese, Reaktivität, Isomerisierung* Propargyl-, Allenyl-and A lkynyl-Phosphanes, Synthesis, R eactivity, Isom erization | | |
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| default:Reihe_B/48/ZNB-1993-48b-0027.pdf | | | Identifier
| ZNB-1993-48b-0027 | | | Volume
| 48 | |
10 | Author
| D. | Requires cookie* | | Title
| Die Bestimmung von W asserstoff in Metallen, Metallhydriden und Hydridhalogeniden  | | | Abstract
| eterm ination o f H ydrogen in M etals, M etal H ydrides and H ydrid H alides R oland Eger, H ansjürgen M attau sch und A rn d t Sim on* M ax-P lanck -In stitu t für F estk ö rp erfo rsch u n g , H eisenbergstraße 1, D -W -7000 S tu ttg a rt 80 Z. N aturforsch . 48b, 4 8 -5 1 (1993); eingegangen am 2. O k to b er 1992 H ydrogen, M etals, R are E arth H ydrides, R are E arth H ydridehalides The hydrogen con ten t in N b H 0 l77, G d H 2, and the chlorides and brom ides o f the type LnXH" (Ln = Y, G d; 0.67 < / ? < 1.00) is determ ined. T he sam ples are b u rn t in an oxygen a t m osphere and the H 20 produced in the com bustion process is potentio m etrically titrated with an accuracy o f ± 3% (K arl-F ischer m ethod). | | |
Reference
| (Z. Naturforsch. 48b, 48 [1993]) | | |
Published
| 1993 | | |
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| default:Reihe_B/48/ZNB-1993-48b-0048.pdf | | | Identifier
| ZNB-1993-48b-0048 | | | Volume
| 48 | |
11 | Author
| W. Olfgang Jeitschko, R. Einhold, B. Rink, PeterG. Pollmeier | Requires cookie* | | Title
| The Ternary Uranium Transition Metal Phosphides UV5P3, UCr5P3, and UMn5P 3  | | | Abstract
| A norganisch-C hem isches In stitu t der U niversität M ünster, W ilhelm -K lem m -Straße 8, D -W -4400 M ünster Z. N aturforsch . 48b, 5 2 -5 7 (1993); received Septem ber 1, 1992 C rystal S tructure, M agnetic Susceptibility, Tin Flux, S tructural R elationships The title co m p o u n d s were p rep ared from prereacted sam ples o f the elem ental co m p o n en ts by arc-m elting. U C r5P 3 was also o b tain ed from a tin flux. U V 5P 3 and U C r5P 3 crystallize w ith a new structu re type, w hich w as determ ined from X -ray d ata o f a tw inned crystal o f U C r5P3: P 2 1/m , a = 959.1(2), b = 370.95(6), c = 696.7(1) pm , ß = 100.05(3)°, Z = 2,R = 0.030 for 827 stru ctu re factors and 29 variable param eters. U M n ,P , is isotypic w ith Y C o 5P 3. The structure was refined to a residual o f R = 0.054 for 455 structure factors and 28 variables. U C r5P3 has a relatively high, alm ost tem p eratu re independent param ag n etic susceptibility as is frequently observed for m etallic u ran iu m com pounds. The crystal stru ctu res o f these p h o s phides are discussed to g eth er w ith those o f oth er phosphides and silicides o f sim ilar co m p o si tion. | | |
Reference
| (Z. Naturforsch. 48b, 52 [1993]) | | |
Published
| 1993 | | |
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| default:Reihe_B/48/ZNB-1993-48b-0052.pdf | | | Identifier
| ZNB-1993-48b-0052 | | | Volume
| 48 | |
14 | Author
| O. Liver, Steigeim Ann, Peter Bissinger, H. Ubert, Schm Idbaur | Requires cookie* | | Title
| ,1,1,1 -Tetrakis[triorganylphosphineaurio(I)]ethanium(+) Tetrafluoroborates - Hypercoordinated Species Containing [H3C -C (A u L )4I+ Cations  | | | Abstract
| Auriophilicity, Gold(I) Phosphine Complexes, Ethane-tetraaurio(I) Com pounds, X-Ray H ypercoordinate, tetraaurated carbon-complexes of the type [H3C -C (A u P R 3)4]+BF4~, R = Ph (1), R = C6H u (2), (PR3)2 = l,2-C 6H 4(C H 2C H 2P Ph2)2 (3) have been prepared by the reac tion o f the appropriate (phosphane)gold(I) chlorides with l,l,l-tris(dim ethoxyboryl)ethane H 3C -C [B (O M e)2]3 in the presence of CsF. The products have been characterized by standard analytical and spectroscopic methods, including single crystal X-ray analyses of 1 and 2. In each case the pentacoordinated carbon atoms have been located at the centre of a square pyr-amide built up by a methyl group at the apex and four gold atoms forming the base with short Au • • • Au distances of about 2.85 A, which strongly contribute to the form ation and stability of these species. | | |
Reference
| (Z. Naturforsch. 48b, 72—78 [1993]; received September 10 1992) | | |
Published
| 1993 | | |
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| default:Reihe_B/48/ZNB-1993-48b-0072.pdf | | | Identifier
| ZNB-1993-48b-0072 | | | Volume
| 48 | |
15 | Author
| K. Arl Hensen, PeterW. Ag, N. Er+ | Requires cookie* | | Title
| Die Kristallstruktur der Verbindung N-Trimethylsilyl-3,4-Dimethylpyridiniumbromid The C rystal Structure o f N -T rim ethylsilyl-3,4-dim ethylpyridinium Brom ide  | | | Abstract
| Trimethylbromosilane and 3,4-lutidine form a 1:1 com pound which is stable at room tem perature. Single crystals of this com pound can be isolated by sublimation. It crystallizes in the orthorhom bic space group P 2,2,2, with lattice constants a = 737,08(9) pm, b = 1295,7(1) pm, c = 1318,8(3) pm. The crystal structure was refined to Rw = 0,042 and proves an ionic struc ture. | | |
Reference
| (Z. Naturforsch. 48b, 79—81 [1993]; eingegangen am 21. Februar 1992) | | |
Published
| 1993 | | |
Keywords
| Trimethylbromosilane, 3, 4-Dimethylpyridine, Addition Com pound, Crystal Structure | | |
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| default:Reihe_B/48/ZNB-1993-48b-0079.pdf | | | Identifier
| ZNB-1993-48b-0079 | | | Volume
| 48 | |
17 | Author
| LinY. Angab, PeterG. Jonesa, R. Einhard, S. Chm | Requires cookie* | | Title
| Synthese und Charakterisierung von Halogen-phosphor(III)- Derivaten des 8-Hydroxychinolins. Röntgenstrukturanalyse von 8-[Phenyl(chloro)-phosphito]-chinolin  | | | Abstract
| Synthesis and C haracterization o f H alo g en -p h o sp horus(III) D erivatives o f 8-H ydroxyquinoline. X -R ay Structure A nalysis o f 8-[Phenyl(chloro)phosphito]-quinoline 8-Hydroxyquinoline, N M R Spectra, X-Ray The reaction of 8-trimethylsiloxyquinoline, 2 with PC13, PhPCl2, and P hPF 2 has furnished the corresponding 8-quinolyl halophosphite derivatives, 3 -5 . The synthesis of two metal com plexes, 8 and 9, of 4 with Au(I) and Pt(II) is described. The new com pounds were characterized by elemental analysis and by 'H and 31P N M R spectroscopy. A single crystal X-ray diffraction study of 4 has been conducted; a short intramolecular P -N contact (230.9 pm) and a long P -C l bond (218.7 pm) were observed. | | |
Reference
| (Z. Naturforsch. 48b, 85—89 [1993]; eingegangen am 2. April 1992) | | |
Published
| 1993 | | |
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| default:Reihe_B/48/ZNB-1993-48b-0085.pdf | | | Identifier
| ZNB-1993-48b-0085 | | | Volume
| 48 | |
18 | Author
| C. M. Ller+, P. Böttcher | Requires cookie* | | Title
| Darstellung und Kristallstruktur des Bis(dicyclohexylammoniuni)-lieptasulfids |H 2N(C6H " )2]2S7  | | | Abstract
| P rep aratio n and C rystal S tructure o f B is(dicyclohexylam m onium)-heptasulfide [H 2N (C 6H 11)2]2S7 The reaction of dicyclohexylamine and sulphur (molar ratio 2:7) with H 2S in a mixture of dimethylformamide and formamide yields red crystals o f bis(dicyclohexylammonium)hepta-sulfide. The com pound crystallizes in the centrosymmetric space group P2,/c, the lattice con stants are a = 9.787(2) Ä, b = 18.972(4) Ä, c = 17.118(3) Ä, ß = 96,12(2)°. The S2 7~ chain has not the common helical a//-r/-a«5-conformation, but a mixed conformation trans-cis-trans (se quence of the signs of torsion angles + h-----a n d ------*-+). | | |
Reference
| (Z. Naturforsch. 48b, 90—9 [1993]; eingegangen am 20. Juli 1992) | | |
Published
| 1993 | | |
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| default:Reihe_B/48/ZNB-1993-48b-0090.pdf | | | Identifier
| ZNB-1993-48b-0090 | | | Volume
| 48 | |
20 | Author
| A. C. Aubet, V. M. Oreno, A. L. Ab Arta, J. T. Ejada | Requires cookie* | | Title
| Electronic Structure Determination of Co(II)-Nucleotide Complexes by Using Magnetic and Mößbauer Emission Measurements  | | | Abstract
| M ößbauer Emission, M etal-Nucleotide Complexes, Electronic Structure M ößbauer emission spectroscopic and susceptibility measurements of several Co(II)-nu-cleotide complexes have been carried out. The electronic structure derived from these data for the Co(II) central cation has been related to the distortion and the symmetry of its environ ment. The susceptibility data are indicative of short antiferromagnetic ordering in the majority of the samples. For the hydrated Co-5'UM P (5'-uridine-monophosphate) and Co-5'CM P (5'-cytidine-monophosphate) complexes, magnetic models involving Co(II) dimers and linear chains, respectively, are proposed to explain the susceptibility data observed below 50 K. | | |
Reference
| (Z. Naturforsch. 48b, 98—106 [1993]; received August 11 1992) | | |
Published
| 1993 | | |
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| default:Reihe_B/48/ZNB-1993-48b-0098.pdf | | | Identifier
| ZNB-1993-48b-0098 | | | Volume
| 48 | |
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