Producción Científica Profesorado

cis-Dichloro complexes of NiII, PdII, and PtII derived from 2-pyridylmethyl-N-substituted imines



Zuno Cruz, Francisco Javier

2013

Pioquinto-Mendoza, JR; Martinez-Otero, D; Andrade-Lopez, N; Alvarado-Rodriguez, JG; Salazar-Pereda, V ; Sanchez-Cabrera, G; Zuno-Cruz, FJ., cis-Dichloro complexes of NiII, PdII, and PtII derived from 2-pyridylmethyl-N-substituted imines, POLYHEDRON, Año:2013 Volume: 50 Issue: 1 Pages: 289-296 DOI: 10.1016/j.poly.2012.11.015 ISSN: 0277-538


Abstract


Synthesis and structural characterization of cis-dichlorocomplexes derived from 2-pyridylmethyl-N-methylimine (1), 2-pyridylmethyl-N-ethylimine (2), and 2-pyridylmethyl-N-(2-bromophenyl)imine (3) of general formula [MII{(C5H4N)?C(H)NR}nCl2] {M = Ni, Pd, Pt; R = Me, Et, ?(2-Br?C6H4); n = 1, 2} are described. Paramagnetic complexes of NiII (1a?3a) were identified by elemental analyses, vibrational spectroscopy and for 2a and 3a, by electronic spectroscopy; the complexes of PdII (1b?3b) and PtII (1c?3c) were characterized by elemental analyses, vibrational spectroscopy and NMR. X-ray molecular structures of 1a, 2a, 1b?3b, 2c and 3c displayed a bidentate coordination mode of the N-substituted pyridylimines (1?3) towards the metallic atoms with the formation of five-membered chelate rings and the chlorine atoms in a cis coordination. In 1a and 2a a distorted octahedral local geometry around the nickel atom was observed, whereas a distorted square planar local geometry around the palladium and platinum atoms in the compounds 1b?3b, 2c and 3c was displayed.



Producto de Investigación




Artículos relacionados

Structural differences in eight- and ten-membered heterocyclic tin compounds displaying transannular...

Six-membered ring chelate complexes of Pd(II) and Pt(II) derived from di-(2-pyridyl)pyrimidin-2-ylsu...

Synthesis, characterization and crystal structures of dipyridyl-N-methylimine and cloro-bis (N,N?-2,...

Pentacoordination at Germanium by Transannular Bonding of Sulfur or Oxygen in an Eight-Membered Ring...

Hypervalence at tin(IV) by transannular bonding of sulfur in an eight-membered ring: The case of dib...

Five-membered ring chelate complexes of Ni(II), Pd(II) and Pt(II) derived of di-(2-pyridyl)-N-ethyli...

Versatile behavior of 2-guanidinobenzimidazole nitrogen atoms toward protonation, coordination and m...

Synthesis, characterization, and crystal structures of n-alkyldiorganodithiophosphates RS2P(OC6H4)2

Synthesis and structural characterization of bis-chelate Pd(II) complexes derived from substituted d...

Pentacoordination at antimony in dibenzostibocines via DSb transannular interactions (D = O, S): A s...