ZIB

1

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Synthesis and Structure of the Copper(II) Complex of a Chiral Bis(dihydrooxazole) Ligand (1991)

Hall, Jonathan ; Lehn, Jean-Marie ; DeCian, André ; [et al.]

New York, NY : Wiley-Blackwell

Helvetica Chimica Acta 74 (1991), S. 1-6

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ISSN: 0018-019X

Keywords: Chemistry ; Organic Chemistry

Source: Wiley InterScience Backfile Collection 1832-2000

Topics: Chemistry and Pharmacology

Notes: The bridged bis(dihydrooxazole) compound (-)-2 and its silylated derivative (-)-3 have been synthesised as building blocks for chiral ligands. The complex of (-)-3 with CuII has been obtained, and its crystal structure has been determined. The CuII ion is bound to two deprotonated ligands in a twisted tetracoordinated geometry.

Additional Material: 1 Ill.

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1002/hlca.19910740103

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Metal Complexes with Tetrapyrrole Ligands, LXI. Structure and Products of Electrochemical Oxidation of Zirconium(IV) and Hafnium(IV) Bisporphyrinate Double-Deckers (1992)

Buchler, Johann W. ; De Cian, André ; Elschner, Steffen ; [et al.]

Weinheim : Wiley-Blackwell

Berichte der deutschen chemischen Gesellschaft 125 (1992), S. 107-115

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ISSN: 0009-2940

Keywords: Zirconium porphyrins ; Hafnium porphyrins ; Porphyrin double-deckers ; Metal bisporphyrinates ; Chemistry ; Inorganic Chemistry

Source: Wiley InterScience Backfile Collection 1832-2000

Topics: Chemistry and Pharmacology

Notes: The electrochemical oxidation of zirconium and hafnium double-deckers M(P)2 (M=Zr, Hf; P=OEP, TPP) (Scheme 1)2) leads to mono- and dications which show near infrared absorption bands which are of ≈ 2000 cm-1 higher energy than those of the corresponding cerium double-decker cations. [Zr(OEP)2]X, [Zr(OEP)2]X2, and [Zr(TPP)2]X (X=ClO4- and PF6-) are isolated after electrochemical oxidation and are characterized by IR and NMR spectroscopy. Magnetic susceptibility measurements (2 K 〈 T 〈 300 K) of the solids confirm the strong coupling of the electron spins in the diamagnetic dication salt [Zr(OEP)2][ClO4]2. The molecular structure of Zr(OEP)2 is elucidated by an X-ray structural analysis.

Additional Material: 5 Ill.

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1002/cber.19921250118

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3

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Metal Complexes with Tetrapyrrole Ligands, LVIII. Zirconium(IV) and Hafnium(IV) Bisporphyrinate Double Deckers: Synthesis, Spectra, Redox Potentials, and Structure (1991)

Buchler, Johann W. ; Cian, André De ; Fischer, Jean ; [et al.]

Weinheim : Wiley-Blackwell

Berichte der deutschen chemischen Gesellschaft 124 (1991), S. 1051-1058

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ISSN: 0009-2940

Keywords: Zirconium porphyrins ; Hafnium porphyrins ; Porphyrin double deckers ; Metal bisporphyrinates ; Chemistry ; Inorganic Chemistry

Source: Wiley InterScience Backfile Collection 1832-2000

Topics: Chemistry and Pharmacology

Notes: The synthesis of new zirconium and hafnium bisporphyrinate double deckers M(P)2 (M=Zr, Hf; P=OEP, TPP)2,3) is described. The complexes are characterized by UV/Vis/NIR and 1H-NMR spectroscopy and cyclic voltammetry. As compared with M=Ce, the redox potentials or the energies of the nearinfrared absorption bands of the corresponding radical cations [M(P)2]+ are lower by ≍ 0.2 V or higher by ≍ 2000 cm-1, respectively, Hence, there is a stronger π-π interaction between the porphyrin ligands as compared with the cerium analogues due to the smaller ionic radii of Zr(IV) and Hf(IV). X-ray crystallography of Zr(TPP)2 confirms the sandwich-like structure of the compound and the close proximity of the porphyrin ligands.

Additional Material: 4 Ill.

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1002/cber.19911240511

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4

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Metal complexes with tetrapyrrole ligands, LVII. Synthesis, spectra, and structure of nitridorhenium(V) porphyrins (1990)

Buchler, Johann W. ; Cian, André De ; Fischer, Jean ; [et al.]

Weinheim : Wiley-Blackwell

Berichte der deutschen chemischen Gesellschaft 123 (1990), S. 2247-2253

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ISSN: 0009-2940

Keywords: Rhenium(V) porphyrins ; Nitridorhenium(V) complexes ; Rhenium-Nitrogen triple bonds ; Metalloporphyrins ; Chemistry ; Inorganic Chemistry

Source: Wiley InterScience Backfile Collection 1832-2000

Topics: Chemistry and Pharmacology

Notes: Oxorhenium(V) porphyrins ReO(P)X (X = Cl, Br) or [ReO(P)]2O, or trichlororhenium(V) porphyrins ReCl3(P) (P = OEP, TPP, TTP, TAP, TCIP, TMP)2,3, respectively, are transformed into nitridorhenium(V) porphyrins ReN(P) with hydrazine hydrate in the presence of ethanol, in good yields. The diamagnetic complexes are stable towards hydrolysis and contain pentacoordinate ReV in a square pyramid of nitrogen donor atoms. Their structure is deduced spectrometrically and is proven in the case of ReN(OEP) by X-ray crystallography. The UV/Vis- and 1H-NMR spectra of the new nitrido complexes are compared with those of the corresponding zinc(II) porphyrins.

Additional Material: 3 Ill.

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1002/cber.19901231204

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5

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Cryptatium: eine Verbindung vom Typ „Expandiertes Atom“/Radikalionenpaar, erhalten durch elektroreduktive Kristallisation von Natrium-tris(bipyridyl)cryptatDiese Arbeit, die während einer Freistellung von L. E. von der University of Miami durchgeführt wurde, wurde vom CNRS (URA 422 und URA 424) gefördert. L. E. dankt dem Fogarty International Center der National Institutes of Health für ein Senior International Stipendium (1FO6TW01551-01). (1991)

Echegoyen, Luis ; Decian, André ; Fischer, Jean ; [et al.]

Weinheim : Wiley-Blackwell

Zeitschrift für die chemische Industrie 103 (1991), S. 884-886

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ISSN: 0044-8249

Keywords: Chemistry ; General Chemistry

Source: Wiley InterScience Backfile Collection 1832-2000

Topics: Chemistry and Pharmacology

Additional Material: 3 Ill.

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1002/ange.19911030740

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6

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Selbstorganisation von Multikomponenten-systemen: spontane Bildung eines zylinderförmigen Komplexes aus fünf Liganden und sechs Metall-IonenDiese Arbeit wurde vom Centre National de la Recherche Scientifique (URA 422 und URA 424) gefördert. P. B. dankt der Royal Society of Chemistry für ein einjähriges Europa-Postdoktorandenstipendium. Wir danken Prof. G. Wipff und E. Engler, Straßburg, für die Farbbilder. (1993)

Baxter, Paul ; Lehn, Jean-Marie ; Decian, André ; [et al.]

Weinheim : Wiley-Blackwell

Zeitschrift für die chemische Industrie 105 (1993), S. 92-95

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ISSN: 0044-8249

Keywords: Chemistry ; General Chemistry

Source: Wiley InterScience Backfile Collection 1832-2000

Topics: Chemistry and Pharmacology

Additional Material: 2 Ill.

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1002/ange.19931050120

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7

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Das Oxoferryl-π-Radikalkation von meso-Tetramesitylporphyrin mit achtfach in β-Stellung chlorierten Pyrroleinheiten: elektronische und strukturelle EigenschaftenDiese Arbeit wurde vom Centre National de la Recherche Scientifique (URA-424), dem United States Public Health Service (Stipendium ES03433 für A. G. und Stipendium GM34443 für J. T.), der Deutschen Forschungsgemeinschaft, der Alexander-von-Humboldt-Stiftung (R.W.) und der NATO (Stipendium für wissenschaftliche Zusammenarbeit für A. G. und R. W.) gefördert. R. W. dankt Dr. J. Fajer (Brookhaven National Laboratory) für wertvolle Diskussionen. -„Oxoferryl“ bezeichnet in diesem Beitrag die Gruppierung FeIVO. (1993)

Ochsenbein, Philippe ; Mandon, Dominique ; Fischer, Jean ; [et al.]

Weinheim : Wiley-Blackwell

Zeitschrift für die chemische Industrie 105 (1993), S. 1504-1505

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ISSN: 0044-8249

Keywords: Chemistry ; General Chemistry

Source: Wiley InterScience Backfile Collection 1832-2000

Topics: Chemistry and Pharmacology

Additional Material: 2 Ill.

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1002/ange.19931051022

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8

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Ferromagnetostrukturelle Beziehungen in den Verbindungen [Mn(OC6X3H2)2(bpy)]2, X = Cl, BrWir danken Prof. Dr. A. Herr und Ing. R. Poinsot für die Messungen mit dem SQUID-Magnetometer und J.-P. Lambour für die Messungen der Wärmekapazität. (1994)

Wesolek, Marcel ; Meyer, Daniel ; Osborn, John A. ; [et al.]

Weinheim : Wiley-Blackwell

Zeitschrift für die chemische Industrie 106 (1994), S. 1660-1662

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ISSN: 0044-8249

Keywords: Chemistry ; General Chemistry

Source: Wiley InterScience Backfile Collection 1832-2000

Topics: Chemistry and Pharmacology

Additional Material: 4 Ill.

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1002/ange.19941061512

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9

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Selbstorganisation, Struktur und spontane Racematspaltung eines aus Oligobipyridinliganden und NiII-Ionen gebildeten dreikernigen TripelhelixkomplexesDiese Arbeit wurde von dem CNRS (URA 422 und URA 424) gefördert. R. K. dankt dem Deutschen Akademischen Austauschdienst für ein Postdoktorandenstipendium. Wir danken Dr. Masayuki Takahashi und Matthias John für Circulardichroismus-Messungen. (1993)

Krämer, Roland ; Lehn, Jean-Marie ; De Cian, André ; [et al.]

Weinheim : Wiley-Blackwell

Zeitschrift für die chemische Industrie 105 (1993), S. 764-767

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ISSN: 0044-8249

Keywords: Chemistry ; General Chemistry

Source: Wiley InterScience Backfile Collection 1832-2000

Topics: Chemistry and Pharmacology

Additional Material: 3 Ill.

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1002/ange.19931050525

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10

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Selbstorganisation eines vierkernigen Komplexes mit planarer Anordnung der Kupfer(I)-Ionen: Synthese, Struktur und elektrochemische EigenschaftenDiese Arbeit wurde vom Centre National de la Recherche Scientifique gefördert. Die Autoren danken Prof. J. W. Lauher (Stony Brook University, USA) für das Überlassen seines Programms „Chem-Ray“ und N. Brand für technische Unterstützung. (1992)

Youinou, Marie-Thérése ; Rahmouni, Noureddine ; Fischer, Jean ; [et al.]

Weinheim : Wiley-Blackwell

Zeitschrift für die chemische Industrie 104 (1992), S. 771-773

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ISSN: 0044-8249

Keywords: Chemistry ; General Chemistry

Source: Wiley InterScience Backfile Collection 1832-2000

Topics: Chemistry and Pharmacology

Additional Material: 1 Ill.

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1002/ange.19921040623

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