Go toArchive
Browse byFacets
Bookbag ( 0 )
Facet   Publication Year 2001  [X]
Results  530 Items
Sorted by   
Section
Publication Year
2001[X]
161Author    Requires cookie*
 Title    Dimeres Di(N-lithiunW£rf-butylamino)bis(dimethylamino)silan - [Si(N(CH3)2)2(NLiC(CH3)3)2]2 -Darstellung und Kristallstruktur  
  Reference    (Z. Naturforsch. 56b, 90 [2001]) 
  Published    2001 
  Similar Items    Find
 DEBUG INFO      
 TEI-XML for    default:Reihe_B/56/ZNB-2001-56b-0090.pdf 
 Identifier    ZNB-2001-56b-0090 
 Volume    56 
162Author    M. =. Cr, Mo, W., Norbert Kuhn, Martin Göhner, Manfred SteimannRequires cookie*
 Title    Über Komplexe des Typs {(PhC=C)3P}3M(CO)3 (M = Cr, Mo, W) On Complexes of the Type {(PhC=C)3P}3M(CO)3 (  
 Abstract    The tris(alkinyl)phosphine complexes {(PhC=C)3P}3M(CO)3, M = Cr (3a), Mo (3b), W (3c), are obtained from P(C=CPh)3 and (C6H 15N3)M(CO)3 (C6H 15N3 = 1,3,5-trimethyl-1,3,5-triazacyclohexane) as stable yellow solids in good yields. While IR data indicate significant acceptor properties of the phosphane ligands, the X-ray structure analysis of 3c also allows the discussion of weak donor interactions. 
  Reference    (Z. Naturforsch. 56b, 95—99 [2001]; eingegangen am 22. September 2000) 
  Published    2001 
  Keywords    Chromium, Molybdenum, Tungsten 
  Similar Items    Find
 DEBUG INFO      
 TEI-XML for    default:Reihe_B/56/ZNB-2001-56b-0095.pdf 
 Identifier    ZNB-2001-56b-0095 
 Volume    56 
163Author    M. H. Vastijová3, J. K. Ohout3, J.W B Uchlerb, H.W K Atzenm Eierb, J. Kožíše, C. D. Id Ie RjeRequires cookie*
 Title    Crystallographic and Spectroscopic Evidence of O-Bonding in 3d-MetaI Dicyanomethanidonitrite Complexes  
 Abstract    The coordination of the dicyanomethanidonitrite group through the nitroso oxygen atom in the tetrakis(pyridine) complexes [M{ONC(CN)2}2(py)4], M = Ni, Co, Cu, and in the bis(pyridine) complex [Cu{ONC(CN)2}2(py)2] was proved by X-ray crystallography of the Ni11 complex and re-evaluated infrared spectra. The Ni11 and Co11 complexes exhibit almost octahedral structures composed of four pyridine nitrogen atoms and two oxygen atoms of dicyanomethanidonitrite ions. Both copper(II) complexes display a considerable axial distor­ tion of the pseudooctahedral arrangement. In the bis(pyridine) Cu11 complex the ONC(CN)2 groups are involved in the bridging function by use of the oxygen and nitrile nitrogen atoms. 
  Reference    (Z. Naturforsch. 56b, 100—104 [2001]; received July 1 2000 Dicyanomethanidonitrite Complexes) 
  Published    2001 
  Similar Items    Find
 DEBUG INFO      
 TEI-XML for    default:Reihe_B/56/ZNB-2001-56b-0100.pdf 
 Identifier    ZNB-2001-56b-0100 
 Volume    56 
164Author    MarkusV. EttelbRequires cookie*
 Title    Orthoamide  
 Abstract    , LV [1]. C7H7N30 6 -Tris(diformylamino)methan ("Formylaalen") -ein Orthoameisensäureamid-Derivat mit sechs Formylgruppen O rthoam ides, LV [1]. C7H 7N 30 6 -T ris(diform ylam ino)m ethane ("F orm ylaalen ") -an O rthoform ic A cid A m id e D erivative w ith Six Form yl G roups W illi K antlehnera b, G eorg Z ieglerb, M ichael C iesielsk ib, O liver Scherrb The preparation of tris(diformylamino)methane (3), a hitherto unknown derivative of or­ thoformic acid, is described. In the presence of a Lewis acid the orthoamide 3 formylates activated aromatic compounds. 
  Reference    (Z. Naturforsch. 56b, 105—107 [2001]; eingegangen am 25. September 2000 Orthoformic Acid Amide Derivate) 
  Published    2001 
  Similar Items    Find
 DEBUG INFO      
 TEI-XML for    default:Reihe_B/56/ZNB-2001-56b-0105.pdf 
 Identifier    ZNB-2001-56b-0105 
 Volume    56 
165Author    W. B. Üchner, W. W. OlfsbergerRequires cookie*
 Title    G erm anium Isotope E ffect on the 19F C hem ical Shift in D ifluorodim ethylgerm ane and the 13C C hem ical Shift in T etram ethylgerm ane  
 Abstract    Difluorodimethylgermane, Germanium Isotope Effect An isotope effect of about -0 .8 Hz at 188 MHz (-4 ppb) per two mass units on the 19F chemical shift in Me2GeF2 due to directly bonded 70Ge/ 72Ge/74Ge/76Ge has been observed. The analo­ gous isotope effect on the 13C chemical shift in Me4Ge is about -0.045 Hz at 100.6 MHz (-0.45 ppb). 
  Reference    (Z. Naturforsch. 56b, 108—109 [2001]; eingegangen am 18. Oktober 2000) 
  Published    2001 
  Similar Items    Find
 DEBUG INFO      
 TEI-XML for    default:Reihe_B/56/ZNB-2001-56b-0108_n.pdf 
 Identifier    ZNB-2001-56b-0108_n 
 Volume    56 
166Author    SvenH. OllRequires cookie*
 Title    Wechselwirkungen in Molekülkristallen  
 Abstract    , 167 [1, 2]. Kristallzüchtung und Strukturbestimmung von cr-Donator/Akzeptor-Komplexen zwischen 1,4-Dioxan und den Polyiod-Molekülen I2,1 2C=CI2, (IC)4S sowie (IC)4NR (R = H, CH3) Interaction in M olecular Crystals, 167 [1, 2]. C rystallization and Structure D eterm ination o f a -D onor/A cceptor C om p lexes b etw een 1,4 -D ioxan e and the P oly iodine M olecules I2,1 2C=CI2, (IC)4S and (IC)4N R (R = H, C H 3) Hans B ock Donor/Acceptor Complexes, 1,4-Dioxane and Polyiodine Compounds, Selforganization Phenomena With 1,4-dioxane as the constant donor, five new donor/acceptor complexes with the polyiodi­ ne compounds I-I, I2C=CI2, tetraiodothiophene and two tetraiodopyrrole derivatives could be crystallized and their structures determined despite their decomposition in air. They provide interesting facets for selforganisation on crystallization: The 1,4-dioxane addition causes at best small structural changes of the polyiodine compounds. All adducts crystallize in chains of alternating donors and acceptors, which also staple separatedly. The direction of the con­ tacts O -I depends on the incorporation of the 1,4-dioxane molecules into the iodine acceptor layers. The structural results correlate with those obtained for donor/acceptor complexes with organosulfur donors and, therefore, add to the rationalization of intermolecular interactions. 
  Reference    (Z. Naturforsch. 56b, 111—121 [2001]; eingegangen am 9. August 2000) 
  Published    2001 
  Similar Items    Find
 DEBUG INFO      
 TEI-XML for    default:Reihe_B/56/ZNB-2001-56b-0111.pdf 
 Identifier    ZNB-2001-56b-0111 
 Volume    56 
167Author    AthanassiosK. Boudalisa, Vassilios Nastopoulos3, Ans Terzisb, CatherineP. Raptopouloub, SpyrosP. Perlepes3Requires cookie*
 Title    Reaction between Yttrium Nitrate and 2,2':6,2"-Terpyridine (terpy) in MeCN: Preparation, Crystal Structures and Spectroscopic Characterization of [Y (N 03)3(terpy)(H20 )] and [Y(N03)3(terpy)(H20 )] * terpy * 3 MeCN  
 Abstract    The reaction of Y(NC>3)3 5H2O and 2,2':6',2"-terpyridine (terpy) in MeCN leads to [Y(N0 3)3(terpy)(H20)] (1) and [Y(N0 3)3(terpy)(H2 0)] terpy-3MeCN (2) in good yields de­ pending on the isolation conditions. The structures of both complexes were determined by single-crystal X-ray crystallography. The Y m atom in 1 is 9-coordinate and ligation is pro­ vided by one terdentate terpy molecule, two chelating nitrates, one monodentate nitrate and one terminal H2O molecule; the coordination polyhedron about the metal may be viewed as a tricapped trigonal prism. The Y ni atom in 2 is 10-coordinate and its coordination sphere consists of three nitrogen atoms from the terdentate terpy, six oxygen atoms from the three chelating nitrates (one of them being "anisobidentate") and one oxygen atom from a terminal H2O molecule; the polyhedron about the metal may be viewed as a distorted sphenocorona. The interstitial terpy is strongly hydrogen-bonded to the O atom o f the coordinated H2O molecule to form [Y(N0 3)3(terpy)(H2 0)j -terpy pairs. The new complexes were characterized by IR and 'H NMR spectroscopies. The Y in/N0 3 -/terpy chemistry is compared to the already well-developed Lnin/N0 3 _ /terpy chemistry (Ln = lanthanide). 
  Reference    (Z. Naturforsch. 56b, 122—128 [2001]; received August 8 2000) 
  Published    2001 
  Keywords    2, 2':6', 2"-Terpyridine Complexes, Yttrium Nitrate Complexes 
  Similar Items    Find
 DEBUG INFO      
 TEI-XML for    default:Reihe_B/56/ZNB-2001-56b-0122.pdf 
 Identifier    ZNB-2001-56b-0122 
 Volume    56 
168Author    Norbert Kuhn, Manfred Steimann, Michael WalkerRequires cookie*
 Title    Acylation o f 2,3-Dihydro-l,3-diisopropyl-4,5-dim ethylim idazol-2-ylidene [ l ]  
 Abstract    Acylation, Heterocycles, Imidazoles 2,3-Dihydro-l,3-diisopropyl-4,5-dimethylimidazol-2-ylidene (2, Im) reacts with PhC(0)X to give the imidazolium salts [PhC(0)Im]F (3) and [PhC(0)Im]Cl (5). From 3 and the corre­ sponding fluoro compounds, the salts [PhC(0)Im][BF4] (4a), [PhC(0)Im][Ph3SiF2] (4b) and [PhC(0)Im] [Ph3SnF2] (4c) are obtained. 2 reacts with oxalylic chloride under CO elimination to give the salt [Im2CO]Cl2 (7). The X-ray data of 4c and 7 • 4 H20 • 2 HC1 ([Im2CO][Cl4H 10O4]) are reported. 
  Reference    (Z. Naturforsch. 56b, 129—136 [2001]; eingegangen am 5. Dezember 2000) 
  Published    2001 
  Similar Items    Find
 DEBUG INFO      
 TEI-XML for    default:Reihe_B/56/ZNB-2001-56b-0129.pdf 
 Identifier    ZNB-2001-56b-0129 
 Volume    56 
169Author    PavelL. Shutovb, SergeyS. Karlov3, Jörg Lorberthb, GalinaS. Zaitseva3Requires cookie*
 Title    Syntheses and Characterization of 1-Haloazagermatranes  
 Abstract    Germanium, Azagermatranes The reaction of tris(dimethylamino)halogermanes, (Me?N)3GeHal (7, Hal = Cl; 8 , Hal = Br), with tris(2-aminoethyl)amines, N(CH2CH2NHR)3 (5, R = H; 6 , R = Me), yield l-halo-N,N',N"-azagermatranes (1, X = Cl, R = H; 2, X = Br, R = H; 3, X = Cl, R = Me; 4, X = Br, R = Me). Treatment of 4 with n-butyllithium affords l-n-butyl-N,N',N"-trimethylazagermatrane (14) in high yield. Reactions of n-BuLi with 7 or (Me2N)4Ge (13) lead to the formation of (Me2N)3Ge-n-Bu (15). On treatment of 15 with 5 the 1 -n-butylazagermatrane 16 was obtained. The molecular composition and the structures of all new compounds were established by elemental analyses, 'H and 13C NMR spectroscopy and mass spectrometry. 
  Reference    Z. Naturforsch. 56b, 137—140 (2001); received November 13 2000 
  Published    2001 
  Similar Items    Find
 DEBUG INFO      
 TEI-XML for    default:Reihe_B/56/ZNB-2001-56b-0137.pdf 
 Identifier    ZNB-2001-56b-0137 
 Volume    56 
170Author    O. P. Pandey3, S. K. Sengupta3, B. P. Baranwal3, SarojK. Shuklab, Alpana Bhatt3Requires cookie*
 Title    Mono-and Bis(cyclopentadienyl)hafnium(IV) Derivatives with Higher Fatty Acids  
 Abstract    The reactions o f Cp2HfCh with som e higher monocarboxylic acids having straight chains, caprylic (C8H16O2), lauric (C12H24O2), myristic (C14H28O2), palmitic (C16H32O2), stearic (C18H36O2), and behenic (C22H44O2) acid, have been studied in anhydrous tetrahydrofuran in 1:1 and 1:2 molar ratios, respectively. The reaction products isolated, o f types Cp2Hf(L)Cl, CpHf(L)2Cl (LH represents different carboxylic acids), have been characterised by conductivity and magnetic susceptibility measurements and spectral (infrared, electronic, *H NMR and 13C NMR) data. The bonding o f the carboxylato ligand in these complexes has been discussed and plausible structures have been established. 
  Reference    Z. Naturforsch. 56b, 141—145 (2001); received April 28 2000 
  Published    2001 
  Keywords    Cyclopentadienyl, Hafnium(IV), Fatty Acids 
  Similar Items    Find
 DEBUG INFO      
 TEI-XML for    default:Reihe_B/56/ZNB-2001-56b-0141.pdf 
 Identifier    ZNB-2001-56b-0141 
 Volume    56 
171Author    Gemot Heckmann3, Gerd Becker3, Stephen Homer3, Herbert Richard3, Hans Kraft3, Peter DvortsakbRequires cookie*
 Title    Remarkably Large 15N, 13C and 180 Isotope NMR Shifts of the Mono-coordinate Phosphorus Atoms in the Compounds (Me3 SiyPrNCP, K+[*PrNCP]-and KOCP * 2 DME (DME = 1,2-Dimethoxyethane)  
  Reference    Z. Naturforsch. 56b, 146 (2001) 
  Published    2001 
  Similar Items    Find
 DEBUG INFO      
 TEI-XML for    default:Reihe_B/56/ZNB-2001-56b-0146.pdf 
 Identifier    ZNB-2001-56b-0146 
 Volume    56 
172Author    Hans Bock, Sven HollRequires cookie*
 Title    Wechselwirkungen in Molekülkristallen, 168 [1,2]. cr-Donator/Akzeptor-Komplexe {HCl3 ***Xe }(X0 = Cl, Bre , Ie ) von Triiodmethan in Tetraphenylphosphoniumhalogeniden Interaction in Molecular Crystals, 168 [1, 2]. cr-Donor/Acceptor Complexes {HCI3 -X "} (X = Cle , Bre , I9 ) of Triiodomethane in Tetraphenylphosphonium Halides  
 Abstract    Triiodomethane Adducts, Tetraphenylphosphonium Halides, cr-Donor/Acceptor and Phenyl/Phenyl Interactions Three donor/acceptor complexes between halide anion donors and the triiodomethane accep­ tor with tetraphenylphosphonium countercations, {(H5C6)4P0 X e " I 3CH)} (X" = C F , Br", I) could be crystallized and their structures determined at low temperature. Their crystal packing motifs are donor/acceptor layers of halide anion/triiodomethane patterns and phe­ nyl/phenyl interacting tetraphenylphosphonium cation chains. Structure comparison and dis­ cussion are based on literature-known analogous adducts with organoammonium salts as well as the phenyl/phenyl interactions in the numerous tetraphenylphosphonium salts registered in the Cambridge Structural Database. The results add novel facets to the selforganization phenomena observed on crystallization of halogen compounds and halide salts. 
  Reference    Z. Naturforsch. 56b, 152—163 (2001); eingegangen am 9. August 2000 
  Published    2001 
  Similar Items    Find
 DEBUG INFO      
 TEI-XML for    default:Reihe_B/56/ZNB-2001-56b-0152.pdf 
 Identifier    ZNB-2001-56b-0152 
 Volume    56 
173Author    S. Bzika, M. Jansenb, Sonderdruckanforderungen An, ProfM. Dr, JansenRequires cookie*
 Title    Darstellung und Charakterisierung von Bis(trichlorsilyl)phenylamin und 2,2,4,4-TetrachIor-1,3-diphenyl-[ 1,3,2,4]diazadisiletidin Preparation and Characterization of Bis(trichlorosilyl)phenylamine and 2,2,4,4-Tetrachloro-1,3-diphenyl-[ 1,3,2,4]diazadisiletidine  
 Abstract    Cross Linking, Silazanes Bis(trichlorsilyl)phenylamine (1) and 2,2,4,4-tetrachlor-l,3-diphenyl-[l,3,2,4]diazadisiletid-ine (2) have been synthesized as potential precursors for the preparation of porous oxygen-free solids by the reaction of tetrachlorosilane with dilithiated aniline. Both compounds were characterized by crystal structure analysis. 1 crystallizes monoclinically, P2/n, a = 10.124(2), b = 12.701(2), c = 11.425(3) A, ß = 109.34(2)° and Z = 4 (/?, = 4.6%, wR2 = 11.6%, 1297 independent reflections). 2 crystallizes orthorhombically, Pbca, a = 11.42(1), b = 8.17(1), c = 17.05(1) Ä, and Z = 4 (Rx = 3.7%, wR2 = 8.2%, 1923 independent reflections). Ammonolyses and polycondensation of 1 and 2 yield amorphous solids with low porosities. 
  Reference    Z. Naturforsch. 56b, 164—168 (2001); eingegangen am 8. November 2000 
  Published    2001 
  Similar Items    Find
 DEBUG INFO      
 TEI-XML for    default:Reihe_B/56/ZNB-2001-56b-0164.pdf 
 Identifier    ZNB-2001-56b-0164 
 Volume    56 
174Author    Requires cookie*
 Title    Rubidium-und Caesium  
 Abstract    -Oxoantimonate(V) mit Kanalstrukturen. Synthesen, Kristallstrukturen und Schwingungsspektren R ubidium and C aesium O xoantim onates(V) w ith C hannel Structures. Syntheses, Crystal S tructures and V ibrational S pectra 
  Reference    Z. Naturforsch. 56b, 169 (2001) 
  Published    2001 
  Similar Items    Find
 DEBUG INFO      
 TEI-XML for    default:Reihe_B/56/ZNB-2001-56b-0169.pdf 
 Identifier    ZNB-2001-56b-0169 
 Volume    56 
175Author    Requires cookie*
 Title    Synthese und Charakterisierung von cis-und fraws-Dicyclohexyl-3,3',4,4'- tetracarbonsäuren und ihren Dianhydriden  
  Reference    Z. Naturforsch. 56b, 179 (2001) 
  Published    2001 
  Similar Items    Find
 DEBUG INFO      
 TEI-XML for    default:Reihe_B/56/ZNB-2001-56b-0179.pdf 
 Identifier    ZNB-2001-56b-0179 
 Volume    56 
176Author    Requires cookie*
 Title    Darstellung und Strukturelle Charakterisierung von cis-und trans- Dicyclohexyl-3,3'A4'-tetracarbonsäure-tetramethylestern  
  Reference    Z. Naturforsch. 56b, 189 (2001) 
  Published    2001 
  Similar Items    Find
 DEBUG INFO      
 TEI-XML for    default:Reihe_B/56/ZNB-2001-56b-0189.pdf 
 Identifier    ZNB-2001-56b-0189 
 Volume    56 
177Author    Requires cookie*
 Title    Spectro-Electrochemistry of Diethyldithiocarbamate Complexes of Ni(II), Pd(II) and Pt(II)  
  Reference    Z. Naturforsch. 56b, 202 (2001) 
  Published    2001 
  Similar Items    Find
 DEBUG INFO      
 TEI-XML for    default:Reihe_B/56/ZNB-2001-56b-0202.pdf 
 Identifier    ZNB-2001-56b-0202 
 Volume    56 
178Author    A. Nja-V, M. Erena, M. Udring, Artin JansenRequires cookie*
 Title    Darstellung und Kristallstruktur von Cs6Cl40 P rep aratio n and Crystal S tructure of Cs6Cl40  
 Abstract    The solid state synthesis and the crystal struc­ ture of Cs6Cl40 (Pearson-code hR22, R3c, a = 1324.7(6), c -1658(1) pm, Z -6, 931 reflections with I0 > 2a(I), R\ = 0.040, wR2 = 0.114) are repor­ ted. The compound crystallises isotypically with Rb6Cl40 in the anti-K4CdCl6 type of structure. The structure consists of infinite chains of alterna­ ting face-sharing OCs6 octahedra and ClCs6 trigo­ nal prisms which are separated by chloride anions. The underlying structural concept and the ana­ logy to perovskites are outlined. 
  Reference    Z. Naturforsch. 56b, 209—212 (2001); eingegangen am 2.November 2000 
  Published    2001 
  Keywords    Cesium, Halide, Solid State Synthesis 
  Similar Items    Find
 DEBUG INFO      
 TEI-XML for    default:Reihe_B/56/ZNB-2001-56b-0209_n.pdf 
 Identifier    ZNB-2001-56b-0209_n 
 Volume    56 
179Author    G. C. Papavassiliou, G. A. Mousdis, I. B. KoutselasRequires cookie*
 Title    Preparation and Characterization of 4-[4-(Dimethylamino)styryl]-l-methyl- pyridinium Lead Triiodide and its Tribromide Analog  
 Abstract    Using 4-[4-(dimethylamino)styryl]-l-methyl-pyridinium iodide, lead iodide, tetrabutylammon-ium bromide and lead bromide as starting materi­ als, the title compounds were prepared and characterized analytically and spectroscopically. 
  Reference    Z. Naturforsch. 56b, 213—214 (2001); received November 21 2000 
  Published    2001 
  Keywords    Organic-Inorganic Hybrids, Low-Dimensional Semiconductors, Optical Properties 
  Similar Items    Find
 DEBUG INFO      
 TEI-XML for    default:Reihe_B/56/ZNB-2001-56b-0213_n.pdf 
 Identifier    ZNB-2001-56b-0213_n 
 Volume    56 
180Author    R. Aija, O. Ilu, K. An Iem, R. Isto, S. L. Aitin En, M. Arkku, A. Hlgré NbRequires cookie*
 Title    The Crystal and Molecular Structure of (//-Oxo)bis{chloro(methyl)thienyI- tellurium(IV)}  
 Abstract    Methyl Thienyl Telluride, Tellurium(IV) The formation and the crystal and molecular structure of (//-oxo)bis{chloro(methyl)thienyl-tellurium(IV)}, [Me(Th)TeCl]20 , are described. The compound is orthorhombic, space group Pbcn, a = 1893.30(2), b = 891.96(2), c = 966.24(5) pm; Z -4. The tellurium atom shows trigonal bi-pyramidal coordination with chlorine and the bridging oxygen atoms in axial, and methyl and thienyl groups in equatorial positions. The two close intermolecular Te(l) —Cl(l) contacts ex­ pand the coordination sphere around tellurium to an almost regular octahedron. 
  Reference    Z. Naturforsch. 56b, 215—217 (2001); received October 26 2000 
  Published    2001 
  Similar Items    Find
 DEBUG INFO      
 TEI-XML for    default:Reihe_B/56/ZNB-2001-56b-0215_n.pdf 
 Identifier    ZNB-2001-56b-0215_n 
 Volume    56 
Prev
...
6
7
8
9
10
...
Next