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  • 1
    Electronic Resource
    Electronic Resource
    Die Kristallstruktur von BaHg(CN)4 · 4 PyridinProfessor Walter Rüdorff zum 75. Geburtstage am 3. Oktober 1984 gewidmet (1984)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 516 (1984), S. 30-34 
    Details
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Crystal Structure of BaHg(CN)4 · 4 PyridineThe structure of the tetragonal BaHg(CN)4 · 4 Pyridine (space group I4, a = 1119.4(7), c = 1 057.9(7) pm, Z = 2, dc = 1.87 g · cm-3) contains tetrahedral Hg(CN)4 and bisdisphenoide Ba(NC)4(py)4 groups, which are linked together by Hg—CN—Ba bridges. The BaHg(CN)4 framework consists of a 3-dimensional network of all round edge-sharing tetrahedrons. The analogous strontium compound is isotype with a = 1 108.2(9) and c = 1 035.3(14) pm.
    Notes: In der Struktur des tetragonalen BaHg(CN)4 · 4 Pyridin (Raumgruppe I4, a = 1119,4(7), c = 1 057,9(9) pm, Z = 2, dc = 1,87 g · cm-3) sind tetraedrische Hg(CN)4- und bisdisphenoide Ba(NC)4(py)4-Gruppen über Hg—CN—Ba-Brücken zu einem Raumnetz verknüpft. Dem BaHg(CN)4-Gerüst liegt ein Aufbau aus allseitig eckenverknüpften Tetraedern zugrunde. Die analoge Strontium-Verbindung ist isotyp mit a = 1 108,2(9) und c = 1 035,3(14) pm.
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19845160905
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  • 2
    Electronic Resource
    Electronic Resource
    Fine and hyperfine structure of the two lowest bound states of Be- and their first two ionization thresholds (1984)
    New York, NY : Wiley-Blackwell
    International Journal of Quantum Chemistry 26 (1984), S. 467-481 
    Details
    ISSN: 0020-7608
    Keywords: Computational Chemistry and Molecular Modeling ; Atomic, Molecular and Optical Physics
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: The two lowest bound excited states of the Be- ion, 1s2 2s2p2 4P and 1s2 2p3 4S0, and their respective thresholds, Be 1s2 2s2p 3P0 and Be 1s2 2p2 3P, and the thresholds of these, Be+ 1s2 2s and Be+ 1s2 2p, have been examined using many-body methods. Here, we present the electron affinities (EAs) or ionization potentials, fine and hyperfine structure, and the electric dipole transition probabilities associated with these states and compare them with existing theory and experiment when available. Based on our new EA, a suggestion is made as to why no negative ion transition has yet been seen in the laboratory.
    Additional Material: 5 Tab.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/qua.560260843
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  • 3
    Electronic Resource
    Electronic Resource
    Dichloropalladium(II)-Komplexe mit α-Aminosäuren, α-Aminosäureestern, Dipeptiden und Dipeptidestern (1984)
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 117 (1984), S. 1003-1012 
    Details
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Dichloropalladium(II) Complexes with α-Amino Acids, α-Amino Acid Esters, Dipeptides, and Dipeptide EstersA series of trans-dichloropalladium(II) complexes Cl2PdL2 (L = α-amino acid, α-amino acid ester, dipeptide, dipeptide esters) and cis-Cl2Pd(histidine) has been prepared and spectroscopically characterized. The X-ray structure of trans-Cl2Pd(GlyOEt)2 (3b) has been determined.
    Notes: Eine Reihe von trans-Dichloropalladium(II)-Komplexen Cl2PdL2 mit (L = α-Aminosäure, α-Aminosäureester, Dipeptid, Dipeptidester) sowie cis-Cl2Pd(Histidin) wurde dargestellt und spektroskopisch charakterisiert. Die Röntgenstruktur von trans-Cl2Pd(GlyOEt)2 (3b) wurde bestimmt.
    Additional Material: 1 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cber.19841170314
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  • 4
    Electronic Resource
    Electronic Resource
    Reaktive Platin-Komplexe mit α-Aminosäurederivaten und ihre P- und N-Kernresonanzspektren (1984)
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 117 (1984), S. 1241-1245 
    Details
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Reactive Platinum Complexes with α-Amino Acid Derivatives and their 31P- and 15N Nuclear Magnetic Resonance SpectraThe α-amino acidate chelate complexes (n-Bu3P)(Cl)⊓PtNH2CH(R)COO (1a - c) (R = H, CH3, CHMe2) react with thionyl chloride, phosphorus pentachloride, or acetyl chloride by cleavage of the chelate ring to give complexes with α-amino acyl chloride or acetic glycine anhydride as ligands: (n-Bu3P)Cl2Pt(NH2CH2COCl) (2), (n-Bu3P)Cl4Pt(NH2CH(CHMe2)COCl) (6), (n-Bu3P)-Cl2Pt(NH2CH2CO(O)OCCH3) (4). Using 15N enriched amino acids, the IR, 15N and 31P NMR spectra indicate cis orientation of phosphane and amino groups in all these complexes.
    Additional Material: 3 Tab.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cber.19841170336
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  • 5
    Electronic Resource
    Electronic Resource
    Metallorganische Lewis-Säuren, XV1). Cyclodimerisierung von 2-Butin und 2-Pentin an Pentacarbonyl-(tetrafluoroborato)rhenium zu einem koordinierten Methylencyclobuten-Derivat (1984)
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 117 (1984), S. 3169-3174 
    Details
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Organometallic Lewis Acids, XV1). Cyclodimerization of 2-Butyne and 2-Pentyne at Pentacarbonyl(tetrafluoroborato)rhenium to a Coordinated Methylenecyclobutene DerivativeThe reactions of pentacarbonyl(tetrafluoroborato)rhenium, (OC)5ReFBF3 (1a), with 2-butyne and 2-pentyne give the methylenecyclobutene complexes [(CO)5Re(C8H12)]+BF4- (2) and [(CO)5Re(C10H16)]+BF4- (3). From 2, 3 the methylenecyclobutene ligands can be liberated by halide ions.
    Additional Material: 1 Tab.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cber.19841171017
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  • 6
    Electronic Resource
    Electronic Resource
    Dicarbonyl(η5-cyclopentadienyl)molybdän-Komplexe mit 2-Iminocarboxylat als Chelatliganden1) (1984)
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 117 (1984), S. 827-832 
    Details
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Dicarbonyl(η5-cyclopentadienyl)molybdenum Complexes with 2-Iminocarboxylate as Chelate Ligand)A series of chiral 2-iminocarboxylato complexes (η5-C5H5)(CO)2MoN(R2)=C(R1)COO (1) (R1 = H, Me, Et, i-Pr; R2 = H, Me, Ph, OH, NH2, NHPh, (S)-CHMePh, CH2CO2Et) has been prepared from (η5-C5H5)(CO)3MoCl, the sodium salt of 2-oxocarboxylic acid and R2NH2 and spectroscopically characterized (IR, 1H NMR). Diastereomers of 1 have been obtained with (S)-1-phenylethylamine as amine component.
    Notes: Eine Reihe von chiralen 2-Iminocarboxylato-Komplexen (η5-C5H5)(CO)2MoN(R2)=C(R1)COO (1) (R1 = H, Me, Et, i-Pr; R2 = H, Me, Ph, OH, NH2, NHPh, (S)-CHMePh, CH2CO2Et) wurde aus (η5-C5H5)(CO)3MoCl, dem Natriumsalz der 2-Oxocarbonsäure und R2NH2 dargestellt und IR- und 1H-NMR-spektroskopisch charakterisiert. Mit (S)-1-Phenylethylamin als Aminkomponente wurden Diastereomere von 1 erhalten.
    Additional Material: 3 Tab.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cber.19841170233
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  • 7
    Electronic Resource
    Electronic Resource
    Aminomethyl- und Aminoacetyl-Carbonyl-Komplexe von Mangan, Molybdän, Wolfram und Cobalt mit dem Phthaloyl-Rest als Aminoschutzgruppe1) (1984)
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 117 (1984), S. 3265-3269 
    Details
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Aminomethyl and Aminoacetyl Carbonyl Complexes of Manganese, Molybdenum, Tungsten, and Cobalt with Phthaloyl as Amino Protecting Group1)The N-phthaloylaminomethyl- and -aminoacetyl complexes PHTNCH2Mn(CO)5 (1), PHTNCH2-COMn(CO)5 (2), PHTNCH2M(CO)3(π-C5H5) (4, M = Mo, W), PHTNCH2COCo(CO)3PPh3 (5), PHTNCH2COCo(CO)4 (6) have been prepared from N-(chlormethyl)phthalimide or phthaloylglycyl chloride and the corresponding carbonyl metallate (PHT = phthaloyl). 5 reacts with iodine in CH3OH or H2O to give phthaloylglycine methyl ester or phthaloyglycine, respectively. From 6 and methionine ester the dipeptide PHTNCH2CO-L-MetOMe is obtained.
    Notes: Die N-Phthaloylaminomethyl- und -aminoacetyl-Komplexe PHTNCH2Mn(CO)5 (1), PHTNCH2-COMn(CO)5 (2), PHTNCH2M(CO)3(π-C5H5) (4, M = Mo, W), PHTNCH2COCo(CO)3PPh3 (5), PHTNCH2COCo(CO)4 (6) werden aus N-(Chlormethyl)phthalimid bzw. Phthaloylglycylchlorid und den entsprechenden Carbonylmetallaten erhalten (PHT = Phthaloyl). 5 liefert mit Iod in Methanol oder Wasser Phthaloylglycin-methylester bzw. Phthaloylglycin; 6 setzt sich mit Methioninmethylester zum Dipeptid PHTNCH2CO-L-MetOMe um.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cber.19841171111
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  • 8
    Electronic Resource
    Electronic Resource
    Azobrücken aus Azinen, I. Isopyrazole als elektronenarme Diene zur Synthese von 2,3-Diazabicyclo[2.2.1]heptenen (1984)
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 117 (1984), S. 517-533 
    Details
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Azo Bridges from Azines, I. Isopyrazoles as Electron Deficient Dienes for the Synthesis of 2,3-Diazabicyclo[2.2.1]heptenesA general principle for [4⊕ + 2] cycloaddition in Diels-Alder reactions with inverse electron demand is described, where protonated azines serve as electron deficient dienes and electron rich olefins as dienophiles. This reactivity pattern is illustrated by isopyrazoles 2a and 2b. The catalytic activity of some acids is studied and the reversibility of the cycloaddition is proved. Inter alia cycloadducts (endo-14a and endo-14b) are obtained with parallel C = C/N = N bonds, which show characteristic features in their UV and NMR spectra.
    Notes: Es wird ein allgemeines Prinzip zur [4⊕ + 2]-Cycloaddition beschrieben, bei dem protonierte cyclische Azine als elektronenarme Diene in einer Diels-Alder-Reaktion mit inversem Elektronenbedarf mit elektronenreichen Olefinen reagieren. Als Beispiele dienen die Derivate 2a und 2b des Isopyrazols. Die katalytische Aktivität verschiedener Säuren wird studiert und die Reversibilität der Cycloaddition nachgewiesen. Es sind auch Cycloaddukte (endo-14a und endo-14b) mit parallelen C = C/N = N-Bindungen zugänglich, die charakteristische UV- und NMR-Spektren zeigen.
    Additional Material: 1 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cber.19841170209
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  • 9
    Electronic Resource
    Electronic Resource
    Röntgenstruktur von Tetraphenylarsonium-tetraazidoaurat(III)1) (1984)
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 117 (1984), S. 419-422 
    Details
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: X-Ray Structure Analysis of Tetraphenylarsonium Tetraazidoaurate(III)The title compound 1 crystallizes in the tetragonal space group P4/n with As and Au in special positions. Four nitrogen atoms surround the Au atom in a square, and the Au(N3)4- anion adopts a whirlwind configuration. The N3- group is asymmetic (N1 - N2 122 pm, N2 - N3 115 pm), typical for covalently bound azido ligands.
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cber.19841170135
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  • 10
    Electronic Resource
    Electronic Resource
    The stomatogastric nervous system of the house cricket Acheta domesticus L. II. Iontophoretic study of neuron anatomy (1984)
    New York, NY : Wiley-Blackwell
    Journal of Morphology 180 (1984), S. 105-124 
    Details
    ISSN: 0362-2525
    Keywords: Life and Medical Sciences ; Cell & Developmental Biology
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Biology , Medicine
    Notes: The anatomy of neurons of the stomatogastric nervous system of Ascheta domesticus was studied using heavy metal iontophoresis through cut nerve ends followed by silver intensification. Nineteen categories of neuron are described and compared with neurons known from the stomatogastric nervous system of other insects. Possible functions for the neurons are suggested. Motor neuron candidates are suggested for all parts of the gut served by the stomatogastric nervous system, and axons of sensory neurons of the anterior pharynx are located. There are four neuron types that cannot readily be assigned motor, sensory, or interneuron functions: large dorsal cells of the frontal ganglion; the two neurons of the nervus connectivus, and two categories of neurons in the median neurosecretory cell group of the pars intercerebralis, the axons of which are contained in the stomatogastric nerves.
    Additional Material: 18 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/jmor.1051800203
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