Mn(III) and Cu(II) complexes of 1-((3-(dimethylamino)propylimino)methyl) naphthalen-2-ol)
- Author(s)
- Swaraj Sengupta, Binitendra Naath Mongal, Suman Das, Tarun K. Panda, Tarun K. Mandal, Michel Fleck, Shyamal K. Chattopadhyay, Subhendu Naskar
- Abstract
Two new complexes, [MnL2](ClO4) (1) and [CuL2] (2) (where LH = (E)-1-((3-(dimethylamino)propylimino)methyl)naphthalen-2-ol), have been synthesized and characterized by spectroscopic techniques and their molecular structures are established by single-crystal X-ray diffraction study. Complex 1 adopts an octahedral geometry around the central manganese atom which is in + 3 oxidation state, whereas in complex 2, the Cu+2 ion preferred a square pyramidal environment around it through the ligand donor atoms. Both complexes were tested for catecholase and phenoxazinone synthase activity. Complex 1 catalyzes the oxidation of 3,5-ditertiary-butyl catechol with a kcat value of 6.8424 × 102 h−1 in acetonitrile whereas the same for complex 2 is 3.7485 × 102 h−1 in methanol. Phenoxazinone synthase activity was shown only by complex 2 having kcat = 74.225 h−1. Structures of both the title complexes have been optimized by means of DFT calculations. Experimental electronic spectra of the complexes have been corroborated by TDDFT analysis. Electrochemical investigations by means of cyclic voltammetry have been carried out to study the electron transfer processes in the complexes.
- Organisation(s)
- Department of Mineralogy and Crystallography
- External organisation(s)
- Birla Institute of Technology, Indian Institute of Engineering Science and Technology-Shibpur, Indian Institute of Technology Hyderabad, Haldia Institute of Technology
- Journal
- Journal of Coordination Chemistry
- Volume
- 71
- Pages
- 1214-1233
- No. of pages
- 20
- ISSN
- 0095-8972
- DOI
- https://doi.org/10.1080/00958972.2018.1453065
- Publication date
- 04-2018
- Peer reviewed
- Yes
- Austrian Fields of Science 2012
- 104015 Organic chemistry, 104011 Materials chemistry, 105113 Crystallography
- Keywords
- ASJC Scopus subject areas
- Materials Chemistry, Physical and Theoretical Chemistry
- Portal url
- https://ucrisportal.univie.ac.at/en/publications/26f68d97-dfa0-44d5-8056-673e17d86aa7