Synthesis, spectral studies and X-ray crystal structure of N,N `-(+/-)-trans-1,2-cyclohexylenebis(3-ethoxysalicylideneamine) H-2(t-3-EtOsalchxn)


Autoria(s): TOZZO, Erica; ROMERA, Sandra; SANTOS, Mirian P. dos; MURARO, Marcia; SANTOS, Regina H. de A.; LIAO, L. M.; VIZOTTO, L.; DOCKAL, Edward R.
Contribuinte(s)

UNIVERSIDADE DE SÃO PAULO

Data(s)

20/10/2012

20/10/2012

2008

Resumo

The synthesis, spectra and X-ray crystal structure of N,N`-(+/-)-trans-1,2-cyclohexylenebis(3-ethoxysalicylideneamine) H-2(t-3-EtOsalchxn), a salen-type ligand, are reported. The Schiff base was characterized by elemental analysis, m.p., IR, electronic spectra, H-1 and C-13 NMR spectra. The spectra are discussed and compared with those of N,N`-(+/-)-trans-1,2-cyclohexylenebis(salicylideneamine), H-2(t-salchxn). The electronic and IR spectra were also resolved by deconvolution. The influence of the ethoxy group on the IR, electronic spectrum, H-1 and C-13 NMR spectra is discussed. Strong intramolecular forces are present as supported by the IR and H-1 NMR spectra and the X-ray crystal structure. An intermolecular hydrogen bond is observed and appears twice in a pair of molecules in the unit cell. (c) 2007 Elsevier B.V. All rights reserved.

Identificador

JOURNAL OF MOLECULAR STRUCTURE, v.876, n.1/Mar, p.110-120, 2008

0022-2860

http://producao.usp.br/handle/BDPI/31764

10.1016/j.molstruc.2007.05.043

http://dx.doi.org/10.1016/j.molstruc.2007.05.043

Idioma(s)

eng

Publicador

ELSEVIER SCIENCE BV

Relação

Journal of Molecular Structure

Direitos

restrictedAccess

Copyright ELSEVIER SCIENCE BV

Palavras-Chave #intermolecular #intramolecular #hydrogen bonding #Schiff base #t-3-EtOsalchxn #deconvolution #SCHIFF-BASE COMPLEXES #ARYL SALICYLALDIMINE COMPLEXES #NONLINEAR-OPTICAL APPLICATIONS #COPPER(II) COMPLEXES #CIRCULAR DICHROISM #LIGANDS #TAUTOMERISM #BEHAVIOR #NICKEL #ETHYLENEDIAMINE #Chemistry, Physical
Tipo

article

original article

publishedVersion