SYNTHESIS, CRYSTAL STRUCTURE AND PROPERTIES OF TETRANUCLEAR COPPER(I) COMPLEX CONTAINING 3-(PYRROL-1-YLMETHYL)PYRIDINE AS LIGAND

Autor:	César V. Franco, Ivo Vencato, Eduardo Sugahara, Marcos M.S. Paula
Rok vydání:	1996
Předmět:	Chemistry Ligand chemistry.chemical_element Crystal structure Nuclear magnetic resonance spectroscopy Triclinic crystal system Copper Spectral line Crystallography chemistry.chemical_compound Pyridine Materials Chemistry Physical and Theoretical Chemistry Cyclic voltammetry
Zdroj:	Journal of Coordination Chemistry. 39:59-70
ISSN:	1029-0389 0095-8972
DOI:	10.1080/00958979608028175
Popis:	The crystal structure of the tetranuclear complex [(pmp)CuI]4, where pmpy = 3-(pyrrol-1-ylmethyl)pyridine), [Cu4I4C40H40N8] (I) has been determined. (I) crystallizes in the triclinic system, space group p -1, with a = 13.008(3), b = 14.047(3), c = 14.392(3) A, α = 68.80(2), β = 80.83(2), γ = 72.62(2)° and two formula units per unit cell. Refinement by full-matrix least-squares gave final residuals of R = 0.0602 and Rw = 0.0552. Results from NMR spectroscopy show that pmp coordinates only through its pyridine nitrogen atom. The Cu4I4, core has a distorted “cubane-like” arrangement with Cu-I distances ranging from 2.644(1) to 2.764(1) A. Data from nuclear magnetic resonance, electronic spectra and cyclic voltammetry are presented and discussed.
Databáze:	OpenAIRE
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