The three transition-metal complexes, (meso-5,7,7,12,14,14-hexa methyl-1,4,8,11-tetra azacyclo tetra decane-κ4 N)bis (perchlorato-κO)copper(II), [Cu(ClO4)2(C18H40N4)], (I), (meso-5,7,7,12,14,14-hexa methyl-1,4,8,11-tetra azacyclo tetra decane-κ4 N)bis (nitrato-κO)zinc(II), [Zn(NO3)2(C18H40N4)], (II), and aqua chlorido (meso-5,7,7,12,14,14-hexa methyl-1,4,8,11-tetraazacyclo tetra decane-κ4 N)copper(II) chloride, [CuCl(C18H40N4)(H2O)]Cl, (III), are described. The mol ecules display a very similarly distorted 4+2 octa hedral environment for the cation [located at an inversion centre in (I) and (II)], defined by the macrocycle N4 group in the equatorial sites and two further ligands in trans-axial positions [two O-ClO3 ligands in (I), two O-NO2 ligands in (II) and one chloride and one aqua ligand in (III)]. The most significant difference in mol ecular shape resides in these axial ligands, the effect of which on the intra- and inter molecular hydrogen bonding is discussed. In the case of (I), all strong hydrogen-bond donors are saturated in intra molecular inter actions, while weak inter molecular C - H⋯O contacts result in a three-dimensional network. In (II) and (III), instead, there are N - H and O - H donors left over for inter molecular inter actions, giving rise to the formation of strongly linked but weakly inter acting chains. © 2013 International Union of Crystallography.
Documento: | Artículo |
Título: | Three transition-metal complexes with the macrocyclic ligand meso-5,7,7,12,14,14-hexamethyl-1,4,8,11-tetraazacyclotetradecane (L): [Cu(ClO4)2(L)], [Zn(NO3)2(L)] and [CuCl(L)(H2O)]Cl |
Autor: | Yasmin, S.; Suarez, S.; Doctorovich, F.; Roy, T.G.; Baggio, R. |
Filiación: | University of Chittagong, Chittagong 4331, Bangladesh Departamento de Química Inorgánica, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Buenos Aires, Argentina Gerencia de Investigación y Aplicaciones, Centro Atómico Constituyentes, Comisión Nacional de Energía Atómica, Buenos Aires, Argentina |
Palabras clave: | biologically important compounds; chiral compounds; crystal structure; macrocycles; biologically important compounds; Chiral compounds; Hydrogen-bond donors; Inter molecular hydrogen bondings; Macrocycles; Significant differences; Three-dimensional networks; Transition-metal complex; Chlorine compounds; Crystal structure; Hydrogen bonds; Ligands; Metal complexes; Nitrogen compounds; Paraffins; Zinc; Zinc compounds; Copper; alkane; coordination compound; copper; heterocyclic compound; ligand; macrocyclic compound; n tetradecane; n-tetradecane; zinc; article; biologically important compounds; chemical structure; chemistry; chiral compounds; crystal structure; hydrogen bond; macrocycles; synthesis; X ray crystallography; biologically important compounds; chiral compounds; crystal structure; macrocycles; Alkanes; Aza Compounds; Coordination Complexes; Copper; Crystallography, X-Ray; Hydrogen Bonding; Ligands; Macrocyclic Compounds; Models, Molecular; Zinc |
Año: | 2013 |
Volumen: | 69 |
Número: | 8 |
Página de inicio: | 862 |
Página de fin: | 867 |
DOI: | http://dx.doi.org/10.1107/S0108270113018465 |
Título revista: | Acta Crystallographica Section C: Crystal Structure Communications |
Título revista abreviado: | Acta Crystallogr Sect C Cryst Struct Commun |
ISSN: | 01082701 |
CODEN: | ACSCE |
CAS: | copper, 15158-11-9, 7440-50-8; zinc, 14378-32-6, 7440-66-6; Alkanes; Aza Compounds; Coordination Complexes; Copper, 7440-50-8; Ligands; Macrocyclic Compounds; Zinc, 7440-66-6; n-tetradecane, 03LY784Y58 |
PDF: | https://bibliotecadigital.exactas.uba.ar/download/paper/paper_01082701_v69_n8_p862_Yasmin.pdf |
Registro: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_01082701_v69_n8_p862_Yasmin |