scholarly journals Application of the electronic spectra of porphyrins for analytical purposes: The effects of metal ions and structural distortions

2013 ◽  
Vol 107 ◽  
pp. 47-62 ◽  
Author(s):  
Zsolt Valicsek ◽  
Ottó Horváth
Keyword(s):  
Metal Ions ◽  
Electronic Spectra ◽  
Structural Distortions

scholarly journals Synthesis characterization of Cr(III), Fe(III), Co(II), Ni(II), Cu(II) and Zn(II) complexes of 2,12-dimethyl-3-13-di-n-propyl-l,4,ll,14-tetraazacycloeicosa-1,13,l1,13-tetraene

2002 ◽  
Vol 67 (12) ◽  
pp. 825-832 ◽  
Author(s):  
Raghu Prasad ◽  
Mala Mathur
Keyword(s):  
Metal Ions ◽  
Metal Complexes ◽  
Electronic Spectra ◽  
Magnetic Measurements ◽  
Elemental Analyses

Metal complexes of a 20-membered tetraazamacrocycle 2,12-dimethyl-3,13-di-n-propyl 1,4,11,14-tetraazacycloeicosa-1,3,11,13-tetraene(L) of the type [MLX2]X(M=Cr(III), Fe(III); X=NO3)[CoLNO3]NO3, [NiL(NO3)2], [CuL]Cl2 and [ZnLCl2]have been prepared by 2+2 cyclocondensation of 2,3-hexanedione with 1,6-diaminohexane in the presence of metal ions as templates. These complexes were characterized by elemental analyses, conductances, IR and electronic spectra and magnetic measurements.

New coordination polymers of glyoxal bis(2-hydroxyanil)

1995 ◽  
Vol 7 (4) ◽  
pp. 433-441 ◽  
Author(s):  
Salah A EI-Shatoury
Keyword(s):  
Electron Microscopy ◽  
Scanning Electron Microscopy ◽  
Metal Ions ◽  
Coordination Polymers ◽  
Elemental Analysis ◽  
Electronic Spectra ◽  
Metal Content ◽  
X Ray ◽  
Dsc Analyses ◽  
Scanning Electron

Coordination polymers of [2,2'-(ethandiylidenedinitrilo) diphenol) have been prepared with the metal ions Cu(II), Ni(1I) and Cr(III). They were characterized by elemental analysis, IR and electronic spectra. The metal content in all polymers was found to be consistent with a 1:1 (metal:ligand) stoichiometry. The thermal behaviour of these coordination polymers has been studied by thermogravimetric and DSC analyses in air up to 500 C. The crystallinity of the formed polymers was determined by x-ray analysis. The morphological structures of these polymers were determined by scanning electron microscopy.

New phthalocyanines containing bulky electron rich substituents

2009 ◽  
Vol 13 (06) ◽  
pp. 753-759 ◽  
Author(s):  
İbrahim Özçeşmeci ◽  
Orhan Güney ◽  
Ali İhsan Okur ◽  
Ahmet Gül
Keyword(s):  
Energy Transfer ◽  
Metal Ions ◽  
Spectral Data ◽  
Electronic Spectra ◽  
Fluorescence Spectra ◽  
Radiative Decays ◽  
Metal Free ◽  
H Nmr ◽  
Elemental Analyses ◽  
New Compounds

Metal-free and metallophthalocyanines with four 9-anthroyl groups bound through ethylthio ester bridges on the periphery have been prepared. The new compounds were characterized by elemental analyses, 1 H NMR, IR, mass and UV-vis spectral data. The electronic spectra exhibit an intense π-π* transition of 9-anthroyl identity together with characteristic Q and B bands of the phthalocyanine core. Effect of metal ions on intensity of fluorescence spectra of phthalocyanine derivatives substituted with 9-anthroyl groups was investigated. The energy transfer to the phthalocyanine core and radiative decays of the 9-anthroyl emission and phthalocyanine core were examined.

ELECTRONIC SPECTRA OF TRANSITION METAL IONS IN CRYSTALS. PART II

1961 ◽  
Author(s):  
DONALD S. MCCLURE ◽  
SANTIAGO R. POLO ◽  
HERBERT A. WEAKLIEM
Keyword(s):  
Transition Metal ◽  
Metal Ions ◽  
Electronic Spectra ◽  
Transition Metal Ions
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