| | 1 | Author
| P. Souza, M. A. Mendiola3, A. Arquerob, V. Ferná, E. G Utiérrez-Pueblac, C. Ruiz-Valeroc | Requires cookie* | | | Title
| Copper(II) Complexes of Hydrazone Derivatives  | | | | Abstract
| Three benzil based, macrocyclic oxygen-, nitrogen-, and sulfur-containing ligands, (3,4,10,11 -tetraphenyl-1,2,5,6,8,9,12,13-octaazacyclotetradeca-7,14-dithione-2,4,9,11 -tetraene) ethanol (L 1), 10,1 l-diethoxy-3,4,10,11-tetraphenyl-1,2,5,6,8,9,12,13-octaazacyclotetradeca-7.14-dithione-2,4-diene (L2), (3,4,10,11 -tetraphenyl-1,2,5,6,8,9,12,13-octaazacyclotetradeca-7.14-dione-2,4,9,l 1-tetraene) ethanol (L3); a cyclic ligand, 6-ethoxy-l,6-diphenyl-4-oxo-3,4,5,6-tetrahydro-2,3,5-triazine (L5) and two open chain ligands, benzilsemicarbazone (L6) and benzilbisthiosemicarbazone (L4) are reported. These ligands react with copper(II) chlor ide, nitrate and acetate. The complexes obtained have been characterized on the basis o f N M R , IR, electronic and mass spectral studies, conductance and analytical data. The sto-ichiometry and the spectroscopic data o f the complexes indicate that the copper ions are coor dinated by neutral ligands or by ligand anions formed by loss o f protons from the ligand. The molecular and crystal structure o f 6-ethoxy-l,6-diphenyl-4-oxo-3,4,5,6-tetrahydro-2,3,5-triazine (L 5) was determined by X-ray diffraction; the space group is triclinic, P 1 with a = 7.865(1), b = 14.101(6), c = 15.733(9) A, a = 69.10(3)°, ß = 75.62(2)°, y = 86.69(2)°, V = 1578(1) A 3, Z = 4. | | | |
Reference
| Z. Naturforsch. 49b, 263—2 (1994); received June 2/October 4 1993 | | | |
Published
| 1994 | | | |
Keywords
| Benzil, Hydrazones, Copper(II), M acroligands, Crystal Structure | | | |
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| default:Reihe_B/49/ZNB-1994-49b-0263.pdf | | | | Identifier
| ZNB-1994-49b-0263 | | | | Volume
| 49 | |
| 2 | Author
| Michael Geschwentner, G. Ernot Elter, Anton Meller | Requires cookie* | | | Title
| Supermesityl-substituierte Hydrazinoborane Supermesityl-Substituted Hydrazinoboranes | | | | Abstract
| Difluoro(supermesityl)borane reacts with monolithiated hydrazines to give the correspond ing fluoroborylated hydrazines la -c , which could not be dehydrofluorinated to yield definite products. From dilithiated hydrazine the 1,2-borylated species 2 was obtained. The fluoro-borylhydrazones 3 a-3 d prepared in an analogous way, by dehydrofluorination with tert-butyllithium, led to 5-, 6-and 7-membered boron nitrogen heterocycles depending upon the substituents of the hydrazones. | | | |
Reference
| Z. Naturforsch. 49b, 459 (1994); eingegangen am 23. Januar 1994 | | | |
Published
| 1994 | | | |
Keywords
| Hydrazine, Hydrazones, Difluoro(superm esityl)borane, Hydrazinoboranes, Boron-Nitrogen Heterocycles | | | |
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| default:Reihe_B/49/ZNB-1994-49b-0459.pdf | | | | Identifier
| ZNB-1994-49b-0459 | | | | Volume
| 49 | |
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