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Dipankar Sen
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Volume 104 Issue 6 December 1992 pp 693-700
Triplets, hydrogen adduct radicals and radical anions of benzil and 2,2′-dichlorobenzil
Jaya Mukherjee Dipankar Sen Subhash Chandra Bera
From flash photolysis data of benzil and 2,2′-dichlorobenzil, the role of conformeric triplets in the formation of hydrogen adduct radicals has been discussed. The planar relaxed triplet absorbing at 470 nm is less efficient in forming a hydrogen adduct radical as compared to its puckered conformeric partner. Among the hydrogen donors, triethyl amine and isopropanol, the former is more efficient in converting puckered triplets and less efficient in the case of planar conformers. Absorptions of radicals and radical anions of 2,2′-dichlorobenzil appear at 355 nm and 460 nm respectively. These are blue-shifted as compared to those of the parent compound benzil appearing at 370 nm and 540 nm, respectively. This blue-shift has been discussed in terms of steric hindrance due to ortho-substitution.
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Volume 104 Issue 6 December 1992 pp 762-790
J Basu K K Rohatgi-Mukherjee S Chatterjee S Sarkar S N Bhattacharyya G K Dasmahapatra Thomas Wolff Gunther Von Bunau S N Dhawan Dipankar Sen Subhash Ch Bera S C Gupta N S Yadav Manabendra Sahu Manjubikash Saha V Masilamani D Sastikumar Pradipta Kumar Behera Ashok Kumar Mishra S Muthusamy V T Ramakrishnan P Ramamurthy S Sampath R Narayan M C Durai Manickam C Srinivasan K Pitchumani M Roja S Rajagopal Reba Ray Samaresh Mukherjee A Samanta E Natarajan S Selvaraj P Natarajan S S Talwar K Viswanathan P Natarajan Aruna Dhathathreyan K S Dhathathreyan Basanti Biswal Pill-Soon Song S Das M Muneer A Haridas V B Manilal R Jayakumar T Ramasami M Julliard M Chanon P N Joshi U C Biswal C L Joshy E Purushothaman Bhaskar G Maiya S Ganesan B Nagarajan V Narayanan Prasanna Mohanty V Shubin S D S Murthy N V Karapetyan R Ramaraj K V Gobi V Gomathi Sankareswari S Ranganayaki K Bahadur Sajal Kumar H R Sonawane D G Kulkarni N R Ayyangar N Sukumar T V Venkitachalam A S Rao S I Ali Harpal Kaur V Anbalagan T S Srivastava Awadhesh Kumar P K Chowdhury K V S Rama Rao J P Mittal N Balasubramanian S Balasubramanian G B Dutt S Doraiswamy Bidyut Kumar Manna K K Rohatgi-Mukherjee A Chandra B Bagchi S Arunachalam J R Devadason T Dhanasekaran K Joseph Prabahar Lizamma Mathew V Ramakrishnan J Rajaram V R S Rao P Narayanan V N Sivasankara Pillai K I Priyadarsini T Rajendran M Palaniandavar M Kaneko A Kira M S Sidhu Arti Chopra Barinder Gill Thomas Baby V P N Nampoori
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Journal of Chemical Sciences
Volume 135, 2023
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