Crystal and molecular structure of 2,9-di-(methylnitronato)-3,5,10,12-tetramethyl-1,4,8,11-tetraazacyclotetradeca-4,11-dienenickel(II) di-triethylammonium diperchlorate, C16H28N6O4Ni·2(C2H5)3NH·2ClO4
Autor: | Przemysław Gluziński, Janusz W. Krajewski, A. Mishnyov, A. Ķemme, Bohdan Korybut-Daszkiewicz |
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Rok vydání: | 1993 |
Předmět: | |
Zdroj: | Journal of Crystallographic and Spectroscopic Research. 23:61-64 |
ISSN: | 1572-8854 0277-8068 |
DOI: | 10.1007/bf01161289 |
Popis: | The crystal and molecular structure of 2,9-di-(methylnitronato)-3,5,10,12-tetramethyl-1,4,8,11-tetraazacyclotetradeca-4,11-dienenickel(II) di-triethylammonium diperchlorate (2c) has been determined of the basis of X-ray diffraction data. The crystals are monoclinic, space groupP21/c,Z=2; cell constantsα=11.478(3),b=15.177(3),c=11.431(3) A,β=99.34(2)°. The structure was refined (full matrix, least squares) with 3408 unique reflections givingR=0.0616. An octahedral configuration of the Ni(II) coordination sphere was found to consist of the macrocycle N4 atoms occupying the equatorial plane of the octahedron with the O-atoms of the nitronato groups in the apical positions. The triethylammonium cations are hydrogen-bonded to the remaining O-atoms of the nitronato groups. |
Databáze: | OpenAIRE |
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