Oxazolidine-2-thione as ligand towards cobalt(II) halides |
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| Affiliation: | 1. Computational and Bio-Simulation Research Group, University of Calabar, Calabar, Nigeria;2. PG and Research Department of Chemistry, Jamal Mohamed College (Autonomous), (Affiliated to Bharathidasan University), Tiruchirappalli 620020, Tamilnadu, India;3. Department of Chemistry, Faculty of Science, Al-Baha University, Al-Baha 65799, Kingdom of Saudi Arabia;4. Department of Chemistry, Chettinad College of Engineering & Technology (Affiliated to Anna University Chennai), Karur 639114, Tamilnadu, India;5. Department of Basic Sciences, College of Science and Health Professions, King Saud bin Abdulaziz University for Health Science, King Abdullah International Medical Research Center, Riyadh Saudi Arabia;6. Director of Project Management Office, HRH Minister of Defense office, Ministry of Defense, Riyadh, Saudi Arabia;7. Centre for Herbal Pharmacology and Environmental Sustainability, Chettinad Hospital, and Research Institute, Chettinad Academy of Research and Education, Kelambakkam 603103, Tamil Nadu, India;1. Laboratoire de Chimie des Matériaux, Faculté des Sciences de Bizerte, Université de Carthage, Zarzouna 7021, Tunisia;2. Computational and Bio-Simulation Research Group, University of Calabar, Calabar, Nigeria;3. Department of Research Analytics, Saveetha Institute of Medical and Technical Sciences, Saveetha Dental College and Hospitals, Chennai, India;4. Department of Chemistry, University of Washington, Seattle, WA, USA |
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| Abstract: | Although oxazolidine-2-thione (oxt) is unstable enough to give a ring opening, it reacts with cobalt(II) halides forming Co(oxt2)X2 complexes (X = Cl, Br, I). The complexes are S-bonded; using i.r. spectroscopy it can be seen that the cobalt-halogen vibrations are in the expected range, while a common vibration at 234 cm−1 is tentatively attributed to vCoS. Colour and magnetic studies carried out on the chloro-derivative as well electronic spectra support a tetrahedral stereochemistry around cobalt(II). From the electronic spectra in the solid state, the crystal field parameters have been calculated and the oxt is inserted in the spectrochemical series of cobalt(II). |
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