JAGANNATH BHUYAN
Articles written in Journal of Chemical Sciences
Volume 125 Issue 4 July 2013 pp 707-714
Jagannath Bhuyan Sabyasachi Sarkar
Two nitrato-iron(III) porphyrinates [Fe(4-Me-TPP)(NO3)]
Volume 129 Issue 4 April 2017 pp 449-455 Regular Article
Magnesium Trimethoxyphenylporphyrin Chain Controls Energy Dissipation in the presence of Cholesterol
KARISHMA DEVI BORAH N GHANASHYAM SINGH JAGANNATH BHUYAN
A magnesium porphyrin compound, [Mg(TMPP)(H ₂O)].(CH ₃COCH ₃)2H ₂O 1 (TMPP = 5,10,15,20-tetrakis(3,4,5-trimethoxyphenyl)porphyrin) has been synthesized and characterized using single crystal X-ray diffraction and other spectroscopic analysis. The luminescence properties of compound 1 were studied at different concentrations. At higher concentration (3×10 ⁻³ M), treatment of 1 with cholesterol enhanced the luminescence when excited at Soret band, demonstrating the role of lipid in controlling porphyrin-porphyrin interaction for tuning the bulk photophysical properties. However, at lower concentration (10 ⁻⁵ M) of porphyrin, there was no significant change in luminescence intensity in the presence of cholesterol. It suggests some role of lipids in light harvesting systems where chlorophyll is present at higher concentration.
Volume 130 Issue 9 September 2018 Article ID 0117
Influence of position of methoxy groups in Zn-methoxyphenylporphyrins
BISHNU PRASAD BORAH JAGANNATH BHUYAN
The crystal structure of the compound, Zn(II) 5,10,15,20-tetrakis(
[ZnT(3, 4, 5-triOCH3)PP] 3 to understand the preferred methoxy-position ofinteraction. The strength of the non-covalent zinc–oxygen (methoxy group of a neighboring porphyrin) interaction in compound 1 is in between that of similar interactions observed in compounds 2 and 3. The Mulliken charge analysis using theoretical calculation at the DFT level shows that the
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