Adsorption of the Meso-Tetra-p-Tolylporphyrin (TTPH2) and Meso-Tetra-Naphthylporphyrin (TNPH2) onto Montmorillonite

Jasim Hassen; Jack Sılver

Article Details

Adsorption of the Meso-Tetra-p-Tolylporphyrin (TTPH2) and Meso-Tetra-Naphthylporphyrin (TNPH2) onto Montmorillonite

Authors:

Jasim Hassen | Jack Sılver

Publisher:

Turkish Chemical Society

Main Topics:

Analytical Chemistry | Physical Chemistry (Other)

Journal:

Journal of the Turkish Chemical Society Section A: Chemistry Vol.10 Issue 3, pp.641-652

Document Type:

Article

Publication Date:

8/2023

Document Language:

English

Document ID (Org No.):

2001292782

pISSN:

2149-0120

Keywords:

Abstract:

 The behavior of two porphyrin compounds, meso-tetra-p-tolylporphyrin TTPH2 and meso-tetra-naphthylporphyrin TNPH2 was studied and monitored during their adsorption on cation-exchanged montmorillonite clay MMT. When these two compounds were reacted with MMT, the visible absorption spectra showed a clear shift of 10 nm higher than that found in the acetic acid solution. This suggests that the two compounds prefer to be more planar on the clay surface and, in the case of TTPH2, in the MMT interlamellar layers. The basal spacing of the MMT was increased by 4.4 Å when the TTPH42 cations entered the spacers. The metal-exchanged ion in the clay is incorporated into the porphyrin rings when the TTPH2 and TNPH2 molecules react with MMT saturated with the metal ion of an appropriate size to fit in the porphyrin ring, such as CuII. The process occurred when executed in a solvent miscible with water that allowed the penetration of the hydrated sphere of the metal ion. Metalloporphyrin complexes are formed as a result of this process. The reactions were monitored using visible absorption spectra, diffuse reflectance spectra, x-ray diffraction, infrared spectra, and electron microscopy.

 The behavior of two porphyrin compounds, meso-tetra-p-tolylporphyrin TTPH2 and meso-tetra-naphthylporphyrin TNPH2 was studied and monitored during their adsorption on cation-exchanged montmorillonite clay MMT. When these two compounds were reacted with MMT, the visible absorption spectra showed a clear shift of 10 nm higher than that found in the acetic acid solution. This suggests that the two compounds prefer to be more planar on the clay surface and, in the case of TTPH2, in the MMT interlamellar layers. The basal spacing of the MMT was increased by 4.4 Å when the TTPH42 cations entered the spacers. The metal-exchanged ion in the clay is incorporated into the porphyrin rings when the TTPH2 and TNPH2 molecules react with MMT saturated with the metal ion of an appropriate size to fit in the porphyrin ring, such as CuII. The process occurred when executed in a solvent miscible with water that allowed the penetration of the hydrated sphere of the metal ion. Metalloporphyrin complexes are formed as a result of this process. The reactions were monitored using visible absorption spectra, diffuse reflectance spectra, x-ray diffraction, infrared spectra, and electron microscopy.

 The behavior of two porphyrin compounds, meso-tetra-p-tolylporphyrin TTPH2 and meso-tetra-naphthylporphyrin TNPH2 was studied and monitored during their adsorption on cation-exchanged montmorillonite clay MMT. When these two compounds were reacted with MMT, the visible absorption spectra showed a clear shift of 10 nm higher than that found in the acetic acid solution. This suggests that the two compounds prefer to be more planar on the clay surface and, in the case of TTPH2, in the MMT interlamellar layers. The basal spacing of the MMT was increased by 4.4 Å when the TTPH42 cations entered the spacers. The metal-exchanged ion in the clay is incorporated into the porphyrin rings when the TTPH2 and TNPH2 molecules react with MMT saturated with the metal ion of an appropriate size to fit in the porphyrin ring, such as CuII. The process occurred when executed in a solvent miscible with water that allowed the penetration of the hydrated sphere of the metal ion. Metalloporphyrin complexes are formed as a result of this process. The reactions were monitored using visible absorption spectra, diffuse reflectance spectra, x-ray diffraction, infrared spectra, and electron microscopy.

 The behavior of two porphyrin compounds, meso-tetra-p-tolylporphyrin TTPH2 and meso-tetra-naphthylporphyrin TNPH2 was studied and monitored during their adsorption on cation-exchanged montmorillonite clay MMT. When these two compounds were reacted with MMT, the visible absorption spectra showed a clear shift of 10 nm higher than that found in the acetic acid solution. This suggests that the two compounds prefer to be more planar on the clay surface and, in the case of TTPH2, in the MMT interlamellar layers. The basal spacing of the MMT was increased by 4.4 Å when the TTPH42 cations entered the spacers. The metal-exchanged ion in the clay is incorporated into the porphyrin rings when the TTPH2 and TNPH2 molecules react with MMT saturated with the metal ion of an appropriate size to fit in the porphyrin ring, such as CuII. The process occurred when executed in a solvent miscible with water that allowed the penetration of the hydrated sphere of the metal ion. Metalloporphyrin complexes are formed as a result of this process. The reactions were monitored using visible absorption spectra, diffuse reflectance spectra, x-ray diffraction, infrared spectra, and electron microscopy.

Article Details

Adsorption of the Meso-Tetra-p-Tolylporphyrin (TTPH2) and Meso-Tetra-Naphthylporphyrin (TNPH2) onto Montmorillonite

Authors: Jasim Hassen | Jack Sılver

Publisher: Turkish Chemical Society

Main Topics: Analytical Chemistry | Physical Chemistry (Other)

Journal: Journal of the Turkish Chemical Society Section A: Chemistry Vol.10 Issue 3, pp.641-652

Document Type: Article

Publication Date: 8/2023

Document Language: English

Document ID (Org No.): 2001292782

pISSN: 2149-0120

adsorption

montmorillonite

porphyrin

TTPH2

TNPH2

Issues

Authors:

Jasim Hassen | Jack Sılver

Publisher:

Turkish Chemical Society

Main Topics:

Analytical Chemistry | Physical Chemistry (Other)

Journal:

Journal of the Turkish Chemical Society Section A: Chemistry Vol.10 Issue 3, pp.641-652

Document Type:

Article

Publication Date:

8/2023

Document Language:

English

Document ID (Org No.):

2001292782

pISSN:

2149-0120